control commands via the interface is input to the control command decoder decodes the command, and then outputs the clock, horizontal sync, vertical sync signal, thereby controlling the oscillation frequency of the OLED display, the ranks of the display device, and a COG LCD Display voltage conversion module OLED display contents offset drive module; if the display data (128 × 64bits), then the display data to the control circuit via GDDRAM MCU interface input buffer, then the local color decoder decodes the data, and finally displays the decoded data through the line driver to drive lcd module displays showing the stability of the Serial display modules the power supply design
Hardware architecture design diagram shown in Figure 2, the external hardware circuit DC-DC converter uses TPS7333 chip 3.3V to 5V power into power, and the power signal output voltage and current through the entire SSD1303 controller voltage and current. The entire system needs 3.3V and 12V power supply, MCU (paper, C8051F023) requires a supply voltage of 3.3V, OLED requires 3.3V logic supply voltage and a driving power supply 9 ~ 12V, the voltage of the driving power from an external power converter circuits.
000
2014年1月20日星期一
Many brands , how to choose ?
After determining a good buy LCD TV or plasma television and screen size , then choose which one to change the brand's consumers want TV should bother . So in the end is to buy domestic brands more affordable LCD TVs , LCD TVs or buy joint brand more protection?
Of course, the main selling point of these brands among various flat-panel TV or different , and some advocacy functions , and some main appearance, in fact, most can not be ignored or quality , after all, the most basic and most important function of the TV or take look . Quality , but off function also appears to have no other meaning . First, determine whether the quality 1080P Full HD screen , and second, whether there is full HD video processing chip, especially to enhance the circuit for LCD TV picture , best before buying consumers through a network or other information to find out.
One of the most popular feature is network television , first-line domestic brands have the appropriate product launch, but differ on the functional details in 2009 , and a joint follow-up product is less.
In fact, from the entire flat-panel TV market, domestic brands and foreign brands are very close in many ways , such as flat-panel TVs on their overall R & D structure that is synchronized ; using the Tsingtek Character LCD Modules screen is now domestic brands and foreign brands are almost the same. Of course , some of them in the design, chip technology , there are many differences in their service areas . The main selling point of the various flat-panel TVs differ
If the current domestic and foreign brands a detailed comparison, most foreign brands as international brands have a higher visibility among Chinese consumers ; In design terms , compared to domestic brands and foreign brands, with respect to weak some, but the past two years , many domestic manufacturers , such as in the design aspects of the rapid development. For specific product performance and functionality , the domestic brands and foreign brands also continued to narrow the gap , such as contrast , brightness, response time and other key parameters of many composite indicator of domestic brands is even higher than the foreign brands.
When purchasing products , Tsingtek Serial Lcd Display Module we also choose what aftermarket . In this regard the domestic brand marketing network and after-sales service network is very robust , they are more perfect after-sales service policy, and also offers a range of branded service projects, in terms of the consumer is also very practical, and this is no one foreign brands can not do , a good reputation and customer satisfaction services are very crucial factor.
Of course, the main selling point of these brands among various flat-panel TV or different , and some advocacy functions , and some main appearance, in fact, most can not be ignored or quality , after all, the most basic and most important function of the TV or take look . Quality , but off function also appears to have no other meaning . First, determine whether the quality 1080P Full HD screen , and second, whether there is full HD video processing chip, especially to enhance the circuit for LCD TV picture , best before buying consumers through a network or other information to find out.
One of the most popular feature is network television , first-line domestic brands have the appropriate product launch, but differ on the functional details in 2009 , and a joint follow-up product is less.
In fact, from the entire flat-panel TV market, domestic brands and foreign brands are very close in many ways , such as flat-panel TVs on their overall R & D structure that is synchronized ; using the Tsingtek Character LCD Modules screen is now domestic brands and foreign brands are almost the same. Of course , some of them in the design, chip technology , there are many differences in their service areas . The main selling point of the various flat-panel TVs differ
If the current domestic and foreign brands a detailed comparison, most foreign brands as international brands have a higher visibility among Chinese consumers ; In design terms , compared to domestic brands and foreign brands, with respect to weak some, but the past two years , many domestic manufacturers , such as in the design aspects of the rapid development. For specific product performance and functionality , the domestic brands and foreign brands also continued to narrow the gap , such as contrast , brightness, response time and other key parameters of many composite indicator of domestic brands is even higher than the foreign brands.
When purchasing products , Tsingtek Serial Lcd Display Module we also choose what aftermarket . In this regard the domestic brand marketing network and after-sales service network is very robust , they are more perfect after-sales service policy, and also offers a range of branded service projects, in terms of the consumer is also very practical, and this is no one foreign brands can not do , a good reputation and customer satisfaction services are very crucial factor.
2014年1月13日星期一
led routine maintenance
LCD monitor relationships with our users most closely , good sanitation work is also very necessary . In fact, the LCD display is also particularly vulnerable to significant dirty, white appearance is really nice, but pay attention to maintenance , it will soon become yellowish ; piano paint really performance, but with one week off , the shell is certainly full of fingerprints ; even the plain black matte material , some time down on the screen is certainly a piece of dust . Many users know to regularly clean the LED display , but you know how to properly clean the Tsingtek lcd module it?
We want to consider purchasing a priority compared to the excellent quality cleaning kit , the cost of cleaning solution generally include the electrolyte , high purity distilled water , antistatic fluid, etc. , can effectively clean the dust on the screen , finger prints and other dirty mark, you can buy some well-known brand products. And good cleaning cloth is also very particular about , it must be ultra- fine fiber -based products , high-end glasses generally send glasses can also be used to make cloth cleaning cloth .
Some people believe that water can be, but also will not damage the LCD screen. However, the relatively poor cleaning effect of water , and clean the dust will be attached over again . Of course , if you want to save money , it will be with water , and better than those of unknown origin cleaning solution to be good. Also note that the point is , do not spray water on the screen , but you want a little cleaning solution is sprayed onto the cleaning cloth , then wipe gently along the same direction , but before cleaning , you need to put the power cord pull out.
For most Tsingtek 122x32 lcd backlit display , they are the most vulnerable place is the screen , the screen is generally less hardness in 3H ( pencil hardness ) , usually do not pay attention to other devices can easily be "friendly fire " when used, and once the screen by loss means that this LED displays basic scrapped.
We want to consider purchasing a priority compared to the excellent quality cleaning kit , the cost of cleaning solution generally include the electrolyte , high purity distilled water , antistatic fluid, etc. , can effectively clean the dust on the screen , finger prints and other dirty mark, you can buy some well-known brand products. And good cleaning cloth is also very particular about , it must be ultra- fine fiber -based products , high-end glasses generally send glasses can also be used to make cloth cleaning cloth .
Some people believe that water can be, but also will not damage the LCD screen. However, the relatively poor cleaning effect of water , and clean the dust will be attached over again . Of course , if you want to save money , it will be with water , and better than those of unknown origin cleaning solution to be good. Also note that the point is , do not spray water on the screen , but you want a little cleaning solution is sprayed onto the cleaning cloth , then wipe gently along the same direction , but before cleaning , you need to put the power cord pull out.
For most Tsingtek 122x32 lcd backlit display , they are the most vulnerable place is the screen , the screen is generally less hardness in 3H ( pencil hardness ) , usually do not pay attention to other devices can easily be "friendly fire " when used, and once the screen by loss means that this LED displays basic scrapped.
2014年1月9日星期四
IPS hard screen advantage
Large viewing angle for the whole family to share
Traditional soft -screen LCD TV , when viewed from the side , color drift phenomenon will occur , resulting in blurred pictures . Because IPS hard screen has a unique molecular structure level conversion , so can reach 178 degrees vertical and horizontal viewing angle , color performance is not compromised at any angle , almost reached the limits of LCD technology , basically eliminating the visual "dead ." Meanwhile, the phenomenon did not appear like a soft color drift screen , can be seen clearly from the side of the screen. It is understood that the opening of the Olympic Games in Beijing Metro Line 5 , the use of almost all IPS hard screen LCD TV technology .
Color accuracy restore the true picture
As the world leader in LCD technology field , LGDisplay IPS hard screen technology was unanimously favored professionals on the world 's top LCD display, such as EIZO, NEC, APPLE and so on professional display products , exclusively uses IPS hard LCD panel screen technology to meet the design, printing, aerospace and other industries demanding professionals of color .
Design and printing of color is the most demanding industries, the reduction in saturation and color accuracy are demanding . IPS hard screen display technology is currently the most accurate color reproduction technology with very high contrast , black level is more clear, therefore , professionals in the field of design through the use of generally considered IPS hard screen LCD monitor designed to effectively reduce the and finally produced the error between samples . In addition , depending on the degree of scientific examination of modern medicine increasingly high ,5.7 TFT display module IPS hard screen ideal black contrast effect is to help improve the speed and accuracy of diagnosis. Relatively speaking , IPS panel, better consistency , more detail for ultra- fine grayscale display requirements .
Size advantage
On the size of the LCD screen , compared with the traditional soft- hard screen LCD screen is also obvious advantages. For example, the mainstream market , and 40 -inch 42-inch panels , with a hard screen technology than the 42 -inch LCD TV screen technology on soft 40-inch area of more than 67.58 square inches , this is not just literally two inches difference, but more of a full laptop . On the 42 -inch display screen digital TV more complete picture , so that consumers can enjoy a larger picture of events . The 40 -inch screen is slightly inferior , but also a small part of the corner does not show up on the restore screen has IPS hard screen to identify missing
( 1 ) touch color lcd display module screen , without waterlines phenomenon, can be recognized as IPS hard screen ; If there waterlines phenomenon, can be recognized as a soft screen .
( 2 ) to use a magnifying glass, liquid crystal molecular shape comparison chart , scaly direction toward the left is full pixel IPS hard screen .
Traditional soft -screen LCD TV , when viewed from the side , color drift phenomenon will occur , resulting in blurred pictures . Because IPS hard screen has a unique molecular structure level conversion , so can reach 178 degrees vertical and horizontal viewing angle , color performance is not compromised at any angle , almost reached the limits of LCD technology , basically eliminating the visual "dead ." Meanwhile, the phenomenon did not appear like a soft color drift screen , can be seen clearly from the side of the screen. It is understood that the opening of the Olympic Games in Beijing Metro Line 5 , the use of almost all IPS hard screen LCD TV technology .
Color accuracy restore the true picture
As the world leader in LCD technology field , LGDisplay IPS hard screen technology was unanimously favored professionals on the world 's top LCD display, such as EIZO, NEC, APPLE and so on professional display products , exclusively uses IPS hard LCD panel screen technology to meet the design, printing, aerospace and other industries demanding professionals of color .
Design and printing of color is the most demanding industries, the reduction in saturation and color accuracy are demanding . IPS hard screen display technology is currently the most accurate color reproduction technology with very high contrast , black level is more clear, therefore , professionals in the field of design through the use of generally considered IPS hard screen LCD monitor designed to effectively reduce the and finally produced the error between samples . In addition , depending on the degree of scientific examination of modern medicine increasingly high ,5.7 TFT display module IPS hard screen ideal black contrast effect is to help improve the speed and accuracy of diagnosis. Relatively speaking , IPS panel, better consistency , more detail for ultra- fine grayscale display requirements .
Size advantage
On the size of the LCD screen , compared with the traditional soft- hard screen LCD screen is also obvious advantages. For example, the mainstream market , and 40 -inch 42-inch panels , with a hard screen technology than the 42 -inch LCD TV screen technology on soft 40-inch area of more than 67.58 square inches , this is not just literally two inches difference, but more of a full laptop . On the 42 -inch display screen digital TV more complete picture , so that consumers can enjoy a larger picture of events . The 40 -inch screen is slightly inferior , but also a small part of the corner does not show up on the restore screen has IPS hard screen to identify missing
( 1 ) touch color lcd display module screen , without waterlines phenomenon, can be recognized as IPS hard screen ; If there waterlines phenomenon, can be recognized as a soft screen .
( 2 ) to use a magnifying glass, liquid crystal molecular shape comparison chart , scaly direction toward the left is full pixel IPS hard screen .
2013年12月3日星期二
What is VGA Interface
Q : VGA interface is the main application of what is ?
A: When it comes to VGA port, I believe many of my friends are not unfamiliar , because this interface is the main interface on the computer monitor , starting from the huge bulky CRT monitors era , VGA interface is being used, and has been in use ever since ,16x2 oled in addition to VGA Interface also known as D-Sub connector.
VGA interface is a D -type interface , a total of 15 pinhole above , divided into three rows, each row of five . Wherein , in addition to 2 NC (NotConnect) signal , 3 and 5 show the data bus signal GND , the more important is the three RGB component signal and two color scanning synchronization signals HSYNC and VSYNC pin . VGA color components using the RS343 interface level standards. RS343 level standard peak voltage of 1V. VGA graphics card interface is the most widely used type of interface , the majority of graphics cards with such an interface . Some graphics without VGA interface and with DVI (DigitalVisualInterface Digital Video Interface ) graphics interface can also be through a simple adapter to convert DVI interface VGA interface , VGA interface will not usually comes this adapter .
Many people think that only the HDMI interface to transmit high-definition signals to , but this is a very easy access to all misunderstanding , because the VGA connection can also display 1080P image resolution can be even higher , so use it to connect a display device Watch the HD video is not a problem , and although it is a kind of analog interface , but because of VGA video signal is decomposed into R, G, B primary colors and HV transmission line field signal , so the loss in the transmission is still quite small.
VGA interface Cause: graphics processing information will eventually be output to the monitor , video card output connector is a bridge between the computer and the monitor , which is responsible for the display output corresponding to the image signal .graphic oled module CRT monitors on the design and manufacture of reasons , can only receive analog signal input , which requires video card can output analog signals. VGA connector is the output of the analog signal on the graphics interface , VGA (VideoGraphicsArray) interfaces , also called D-Sub connector. Although the LCD monitor can receive digital signals directly , but many low-end products in order to match with the VGA interface card , which uses the VGA connector.
A: When it comes to VGA port, I believe many of my friends are not unfamiliar , because this interface is the main interface on the computer monitor , starting from the huge bulky CRT monitors era , VGA interface is being used, and has been in use ever since ,16x2 oled in addition to VGA Interface also known as D-Sub connector.
VGA interface is a D -type interface , a total of 15 pinhole above , divided into three rows, each row of five . Wherein , in addition to 2 NC (NotConnect) signal , 3 and 5 show the data bus signal GND , the more important is the three RGB component signal and two color scanning synchronization signals HSYNC and VSYNC pin . VGA color components using the RS343 interface level standards. RS343 level standard peak voltage of 1V. VGA graphics card interface is the most widely used type of interface , the majority of graphics cards with such an interface . Some graphics without VGA interface and with DVI (DigitalVisualInterface Digital Video Interface ) graphics interface can also be through a simple adapter to convert DVI interface VGA interface , VGA interface will not usually comes this adapter .
Many people think that only the HDMI interface to transmit high-definition signals to , but this is a very easy access to all misunderstanding , because the VGA connection can also display 1080P image resolution can be even higher , so use it to connect a display device Watch the HD video is not a problem , and although it is a kind of analog interface , but because of VGA video signal is decomposed into R, G, B primary colors and HV transmission line field signal , so the loss in the transmission is still quite small.
VGA interface Cause: graphics processing information will eventually be output to the monitor , video card output connector is a bridge between the computer and the monitor , which is responsible for the display output corresponding to the image signal .graphic oled module CRT monitors on the design and manufacture of reasons , can only receive analog signal input , which requires video card can output analog signals. VGA connector is the output of the analog signal on the graphics interface , VGA (VideoGraphicsArray) interfaces , also called D-Sub connector. Although the LCD monitor can receive digital signals directly , but many low-end products in order to match with the VGA interface card , which uses the VGA connector.
2013年11月4日星期一
Plasma 3D analysis
From the product technology level, to take self-luminous plasma TV technology relative to LCD TV in the contrast ratio, response time , color reproduction , viewing angle and so has a natural advantage :
First , plasma TV screen with high contrast .256x64 oled display In the 3D display , the contrast of the LCD TV is more serious problem , dark scene more difficult to see. The plasma TV Levels higher level of shadow detail and color performance is more prominent. It is reported that plasma TV giants Panasonic 's latest technology developed by the contrast enhancing contrast to infinity.
Second , plasma TVs colors more realistic. Plasma display each pixel can be independent light, very uniform, no light and dark areas , which makes plasma TV color reproduction capability stronger than LCD TVs .
Third , plasma TVs refresh rate higher dynamic high definition, no smearing. LCD TV screen fluency has always been a problem , but in 3D TV high refresh request, the advantages of plasma TVs are becoming increasingly apparent. Millisecond response time of the liquid crystal molecules significantly with microsecond plasma have a certain gap . Mainstream LCD TV screen refresh rate of 240Hz, while plasma TVs already beyond 600Hz.
Fourth , plasma TVs wider viewing angle .TFT LCD Displays According to the relevant tests showed that plasma 3D TV vertical and horizontal viewing angle can reach 160 degrees, the side watching TV, plasma TV screen and not be affected. The 3D LCD TV compared to 130 degrees, as the angle increases color and level have emerged attenuation.
In addition, large-size plasma TV in the manufacturing advantages are also more suitable for 3D large-screen era. Because the bigger the screen , 3D display , the better , while plasma TVs of 42 inches or more , especially more than 50 inches on the obvious advantages of manufacturing specifications .
First , plasma TV screen with high contrast .256x64 oled display In the 3D display , the contrast of the LCD TV is more serious problem , dark scene more difficult to see. The plasma TV Levels higher level of shadow detail and color performance is more prominent. It is reported that plasma TV giants Panasonic 's latest technology developed by the contrast enhancing contrast to infinity.
Second , plasma TVs colors more realistic. Plasma display each pixel can be independent light, very uniform, no light and dark areas , which makes plasma TV color reproduction capability stronger than LCD TVs .
Third , plasma TVs refresh rate higher dynamic high definition, no smearing. LCD TV screen fluency has always been a problem , but in 3D TV high refresh request, the advantages of plasma TVs are becoming increasingly apparent. Millisecond response time of the liquid crystal molecules significantly with microsecond plasma have a certain gap . Mainstream LCD TV screen refresh rate of 240Hz, while plasma TVs already beyond 600Hz.
Fourth , plasma TVs wider viewing angle .TFT LCD Displays According to the relevant tests showed that plasma 3D TV vertical and horizontal viewing angle can reach 160 degrees, the side watching TV, plasma TV screen and not be affected. The 3D LCD TV compared to 130 degrees, as the angle increases color and level have emerged attenuation.
In addition, large-size plasma TV in the manufacturing advantages are also more suitable for 3D large-screen era. Because the bigger the screen , 3D display , the better , while plasma TVs of 42 inches or more , especially more than 50 inches on the obvious advantages of manufacturing specifications .
2013年11月3日星期日
Notes on the monitor selection
Note a : Refresh rate
The display refresh rate is a vertical scanning frequency ( field frequency ) , it refers to the second internal electron gun for scanning the entire screen frequency , in Hz ( Hertz ) as a unit . For the CRT display , CRT monitors image displayed on the phosphor is composed of many points, each phosphor point of the electron beam hitting the light, but the phosphor dot light emitting time is very short, so to constantly refresh the electron beam hit emitting phosphor of the continuing fight to make , but only refresh fast enough, the human eye can see sustained more stable picture , it will not feel the screen flicker and jitter , eye fatigue is not easy . So CRT monitor refresh rate in the relevant resolution of not less than 85Hz to make people more comfortable seeing .
And CRT display screen is divided into a number of the " scan line" to refresh the screen flicker problem occurs compared , LCD image is not generated by electron gun scans , but is controlled by controlling whether translucent light and dark , so the LCD refresh is entire screen is refreshed , LCD even at lower refresh rate ( eg 60Hz) , it will not appear flicker , image stabilization.
So, do not increase when adjusting the LCD refresh rate , using 60Hz (1024 × 768 resolution ) / 75Hz (1280 × 1024 resolution ) or ' default display adapter "button.
In addition, we must choose to install the appropriate "Monitor" drive , it should not use CRT display the word " Monitor" driver should be installed with the distribution of liquid crystal display driver , monitor or display properties "Standard monitor types" in the " laptop display panel (1024 × 768 or 1280 × 1024)".
Note two : Number of colors
As we all know , the current mainstream CRT color monitors are supported by 32-bit true color , but the LCD is not always the case. Entry on the market most of the liquid crystal panel LCD are used 6bit panel, which can display up to 262,144 colors (64 × 64 × 64 = 262144), and only 8bit panel can display 16,777,216 colors (256 × 256 × 256 = 16777216 ) . So adjust 6bit panel entry-level LCD will be displayed colors.
Note III: Viewing Angle
Display viewing angle is measured from different directions can clearly see all the content on the screen the maximum angle , CRT monitors viewing angle is theoretically accessible pan / tilt 180 degrees. Since the LCD is the use of light transmission to imaging, so the LCD viewing angle is smaller compared to a CRT monitor - in the LCD , direct and oblique light will penetrate the same pixel display area , so from the outside viewing angle greater than the angle will find that when viewing the screen image ghosting and color and so on .
Currently available level of a liquid crystal display ( left ) Viewing angle is generally 120 degrees, and the vertical (up and down ) to be slightly smaller viewing angle , 100 degrees or more in general . In use to get a better viewing angle, besides adjusting the angle of the display to minimize sitting or being outside of the LCD may be appropriate to increase the brightness of thelcm module , which also makes available the LCD viewing angle is maximized .
Note IV: Response Time
A liquid crystal display signal response time delay in response of the liquid crystal cell , is the molecular arrangement of the liquid crystal cell from one state into another state of molecular arrangement of the time required for the screen from dark to bright or dark by the light switch speed. Response time as short as possible , it reflects each pixel LCD monitor reaction rate of the input signal , the response time will generally be divided into two parts: the rise time (Risetime) and fall time (Falltime), whichever is expressed and the subject is not one-way .
The current mainstream lcd modules 25ms response time can do within the new mainstream models more in between 8ms ~ 16ms . = 1/0.025 = 25 ms display 40 pictures per second , has been able to meet the needs of video playback ; 16 ms = 1/0.016 = 63 frame per second display , has been able to meet most of the needs of the game ; 12 ms = 1/0.012 = 83 second display screen , but due to the restrictions 12ms LCD refresh rate 60/75Hz generally not up to 83 pictures per second . Therefore, the current mainstream LCD monitor is fully able to meet the general user DVD players and gaming needs.
Note five : Resolution
Traditional CRT monitors as long as the line frequency and bandwidth sufficient to stabilize the general support it supports the resolution of all stable full screen display .
The display refresh rate is a vertical scanning frequency ( field frequency ) , it refers to the second internal electron gun for scanning the entire screen frequency , in Hz ( Hertz ) as a unit . For the CRT display , CRT monitors image displayed on the phosphor is composed of many points, each phosphor point of the electron beam hitting the light, but the phosphor dot light emitting time is very short, so to constantly refresh the electron beam hit emitting phosphor of the continuing fight to make , but only refresh fast enough, the human eye can see sustained more stable picture , it will not feel the screen flicker and jitter , eye fatigue is not easy . So CRT monitor refresh rate in the relevant resolution of not less than 85Hz to make people more comfortable seeing .
And CRT display screen is divided into a number of the " scan line" to refresh the screen flicker problem occurs compared , LCD image is not generated by electron gun scans , but is controlled by controlling whether translucent light and dark , so the LCD refresh is entire screen is refreshed , LCD even at lower refresh rate ( eg 60Hz) , it will not appear flicker , image stabilization.
So, do not increase when adjusting the LCD refresh rate , using 60Hz (1024 × 768 resolution ) / 75Hz (1280 × 1024 resolution ) or ' default display adapter "button.
In addition, we must choose to install the appropriate "Monitor" drive , it should not use CRT display the word " Monitor" driver should be installed with the distribution of liquid crystal display driver , monitor or display properties "Standard monitor types" in the " laptop display panel (1024 × 768 or 1280 × 1024)".
Note two : Number of colors
As we all know , the current mainstream CRT color monitors are supported by 32-bit true color , but the LCD is not always the case. Entry on the market most of the liquid crystal panel LCD are used 6bit panel, which can display up to 262,144 colors (64 × 64 × 64 = 262144), and only 8bit panel can display 16,777,216 colors (256 × 256 × 256 = 16777216 ) . So adjust 6bit panel entry-level LCD will be displayed colors.
Note III: Viewing Angle
Display viewing angle is measured from different directions can clearly see all the content on the screen the maximum angle , CRT monitors viewing angle is theoretically accessible pan / tilt 180 degrees. Since the LCD is the use of light transmission to imaging, so the LCD viewing angle is smaller compared to a CRT monitor - in the LCD , direct and oblique light will penetrate the same pixel display area , so from the outside viewing angle greater than the angle will find that when viewing the screen image ghosting and color and so on .
Currently available level of a liquid crystal display ( left ) Viewing angle is generally 120 degrees, and the vertical (up and down ) to be slightly smaller viewing angle , 100 degrees or more in general . In use to get a better viewing angle, besides adjusting the angle of the display to minimize sitting or being outside of the LCD may be appropriate to increase the brightness of thelcm module , which also makes available the LCD viewing angle is maximized .
Note IV: Response Time
A liquid crystal display signal response time delay in response of the liquid crystal cell , is the molecular arrangement of the liquid crystal cell from one state into another state of molecular arrangement of the time required for the screen from dark to bright or dark by the light switch speed. Response time as short as possible , it reflects each pixel LCD monitor reaction rate of the input signal , the response time will generally be divided into two parts: the rise time (Risetime) and fall time (Falltime), whichever is expressed and the subject is not one-way .
The current mainstream lcd modules 25ms response time can do within the new mainstream models more in between 8ms ~ 16ms . = 1/0.025 = 25 ms display 40 pictures per second , has been able to meet the needs of video playback ; 16 ms = 1/0.016 = 63 frame per second display , has been able to meet most of the needs of the game ; 12 ms = 1/0.012 = 83 second display screen , but due to the restrictions 12ms LCD refresh rate 60/75Hz generally not up to 83 pictures per second . Therefore, the current mainstream LCD monitor is fully able to meet the general user DVD players and gaming needs.
Note five : Resolution
Traditional CRT monitors as long as the line frequency and bandwidth sufficient to stabilize the general support it supports the resolution of all stable full screen display .
2013年10月8日星期二
Resolution LCD splicing screen brightness difference
Currently large-screen LCD display area is a popular product , I believe most users of Samsung's latest 7.3mm Ultra Narrow splicing screen is not strange, but it comes to the mosaic screen 7.3mm ultra-slim bezel there 700cd/m2 with 450cd / m2 of the points, most people would likely confused .
The brightness of the LCD screen is determined by the LCD panel , and currently in the country, can not produce LCD splicing screen panel that last year the first domestic production of LCD panel production line ,20x2 oled display BOE 6.5 generation line can only cut 37 inches below the LCD panel for small-size LCD TV and computer monitor. So that no matter which one you choose manufacturers of LCD splicing screen , as long as the other is Samsung 's LCD panel , brightness, contrast and other parameters are hard we can not change . So before you choose , be sure to choose according to their needs different brightness LCD splicing screen .
For now, using Samsung LTI460AA04 (700cd/m2) lcd module with LTI460AA05 (450 cd/m2) LCD panel LCD splicing screen, in the direction of the main application and the two products are not essentially different . However, due to different application environments require different brightness for large screen leaving the two products in specific applications generated on nuances.
Generally, people's eyes for the brightness tolerance is limited , if the light is poor small space, if brightness of 700cd/m2, the human eye is likely to be burned ; However, if the majority in bright outdoor space such as square , street , display brightness if 450 cd/m2, then the image will be blurred for people in terms of . Therefore, I propose that users buy products should be based on their actual application environment , but also in the light somewhat less space is more limited range of places LTI460AA05 applicable , by contrast , the vast space lit LTI460AA04 become preferred .
In addition, Ultra Narrow LCD splicing screen , its optimum operating temperature is 39 degrees Celsius and a relative humidity of 90% in the control area of the largest of its best working condition . The higher the brightness of the LCD splicing wall they emit more heat , if the heat is not in place, causing light display greatly reduced , can also cause serious damage to the LCD video wall , affecting life. In terms of users , should be considered in the choice of products to their actual ability to operate .
The brightness of the LCD screen is determined by the LCD panel , and currently in the country, can not produce LCD splicing screen panel that last year the first domestic production of LCD panel production line ,20x2 oled display BOE 6.5 generation line can only cut 37 inches below the LCD panel for small-size LCD TV and computer monitor. So that no matter which one you choose manufacturers of LCD splicing screen , as long as the other is Samsung 's LCD panel , brightness, contrast and other parameters are hard we can not change . So before you choose , be sure to choose according to their needs different brightness LCD splicing screen .
For now, using Samsung LTI460AA04 (700cd/m2) lcd module with LTI460AA05 (450 cd/m2) LCD panel LCD splicing screen, in the direction of the main application and the two products are not essentially different . However, due to different application environments require different brightness for large screen leaving the two products in specific applications generated on nuances.
Generally, people's eyes for the brightness tolerance is limited , if the light is poor small space, if brightness of 700cd/m2, the human eye is likely to be burned ; However, if the majority in bright outdoor space such as square , street , display brightness if 450 cd/m2, then the image will be blurred for people in terms of . Therefore, I propose that users buy products should be based on their actual application environment , but also in the light somewhat less space is more limited range of places LTI460AA05 applicable , by contrast , the vast space lit LTI460AA04 become preferred .
In addition, Ultra Narrow LCD splicing screen , its optimum operating temperature is 39 degrees Celsius and a relative humidity of 90% in the control area of the largest of its best working condition . The higher the brightness of the LCD splicing wall they emit more heat , if the heat is not in place, causing light display greatly reduced , can also cause serious damage to the LCD video wall , affecting life. In terms of users , should be considered in the choice of products to their actual ability to operate .
2013年10月7日星期一
Large-screen LCD splicing bring convenience for public spaces
LCD splicing rapid development for airports, subways, train stations and other places of these overcrowded public transport , safety monitoring and flight , train schedule information in real time , clear and accurate display , are extremely important. Narrow ,COG LCD Display ultra-narrow , seamless stitching large LCD screen can be a good solution to these problems.
LCD splicing screen application analysis :
1, the safety monitoring : surveillance video wall is mainly to solve the centralized control of multi-channel signal display on multiple screens assembled splicing , on the same platform , real-time computer images, video images mixed display , which can be single-screen display separate images, stitching software can also be achieved through multiple screens to enlarge images mosaic display , means flexible , fully meet the demand for the use of video surveillance .
2 , information display areas:
3 , real-time , clearly show the flight information and train schedules, in the rush hour every passenger can choose according to their flow travel time and ease congestion ;
4 , you can display weather and other convenient information to the majority of the passengers more convenient ;
5 , in addition, the narrow - ultra-narrow large-screen display can also transport these high traffic sites for various advertising and information campaigns ,320x240 lcd module so that opportunities everywhere !
LCD splicing screen application analysis :
1, the safety monitoring : surveillance video wall is mainly to solve the centralized control of multi-channel signal display on multiple screens assembled splicing , on the same platform , real-time computer images, video images mixed display , which can be single-screen display separate images, stitching software can also be achieved through multiple screens to enlarge images mosaic display , means flexible , fully meet the demand for the use of video surveillance .
2 , information display areas:
3 , real-time , clearly show the flight information and train schedules, in the rush hour every passenger can choose according to their flow travel time and ease congestion ;
4 , you can display weather and other convenient information to the majority of the passengers more convenient ;
5 , in addition, the narrow - ultra-narrow large-screen display can also transport these high traffic sites for various advertising and information campaigns ,320x240 lcd module so that opportunities everywhere !
2013年9月22日星期日
LCD Video Wall on stage
As a large-screen DLP rear projection pioneer , the first to enter this battle , in recent years , DLP splicing system relies on proven technology has come out on top , and its large size, patchwork of small , static images can be displayed for a long series of advantages attracts many users. DLP splicing system has a mature industry chain , contractors and numerous channels , customers a wide range of other advantages, in 2009 accounted for 64% of the market share. However, since the DLP display color and brightness uniformity , power consumption is too large , space and other issues has not been possible to obtain effective breakthrough , with the liquid crystal ( lcd module technology after the rise , DLP technology is facing the demise of the situation.
LCD Video Wall is the second CRT, PDP, DLP rise after another mosaic wall products. It is a liquid crystal display technology and projection technology product of the combination , the use of liquid crystal electro-optical effect , through the circuit controlling the transmittance of the liquid crystal cell and reflectivity , resulting in different gray levels and up to hundreds of colors of the beautiful images. They have the LCD with high resolution , wide viewing angle, high brightness, long life and other advantages have gradually attract users to the eye , so that in the large screen display applications shows a gradual rise. Within a few years, 16x2 oled display products will occupy up to one fifth of the market share. Ultra- narrow splicing LCD - UT series praised by users , but by virtue of the unique advantages of price and product broadens LCD large screen in the security fields. However, the liquid crystal is not nearly perfect .
2013年9月18日星期三
LCD motion stitching
LCD display another new application mode or without the thin liquid crystal cell characteristics . This is the figure is high , convention and entertainment venues are often able to see the "movement stitching ."
Can continue to build a " dynamic" mosaic wall , both up and down , back and forth , or rotate flip, the system itself is the key part of the mechanical structure of the rear screen . A display unit heavier weight , greater thickness , which means in the building when the moving mechanical parts , the higher the degree of difficulty , the greater the depth required to move unit . Construction of the overall volume of the larger system .
Currently, Character LCD Module splicing unit used in sports projects mainly in the 42 and 46-inch unit -based, or even part of the project are willing to adopt a smaller size products. Small and medium size splicing unit mainly due to the popular features of its slimmer , which also explains why not enter the sport DLP mosaic tiled display fields.
LCD technology used in mosaic market , thanks to its unique characteristics of some of the techniques , a wider application methods are being constantly developed. In the commercial area and cheap market, LCD splicing has established a new market rules , and the future with the lcd module splicing technology advances, the more applications market, LCD and DLP technology is bound to confrontation , and the birth of more classic application programs .
Can continue to build a " dynamic" mosaic wall , both up and down , back and forth , or rotate flip, the system itself is the key part of the mechanical structure of the rear screen . A display unit heavier weight , greater thickness , which means in the building when the moving mechanical parts , the higher the degree of difficulty , the greater the depth required to move unit . Construction of the overall volume of the larger system .
Currently, Character LCD Module splicing unit used in sports projects mainly in the 42 and 46-inch unit -based, or even part of the project are willing to adopt a smaller size products. Small and medium size splicing unit mainly due to the popular features of its slimmer , which also explains why not enter the sport DLP mosaic tiled display fields.
LCD technology used in mosaic market , thanks to its unique characteristics of some of the techniques , a wider application methods are being constantly developed. In the commercial area and cheap market, LCD splicing has established a new market rules , and the future with the lcd module splicing technology advances, the more applications market, LCD and DLP technology is bound to confrontation , and the birth of more classic application programs .
2013年8月22日星期四
Technical features color PDP
Bright and easy to see, good contrast, thin and light, large screen, fast response, wide viewing angle, multi-level gray scale, high reliability, and can achieve full-color display. Wide viewing angle is large-screen wall-mounted TV and HDTV will be exhausted one of the conditions. The use of mixed rare gas discharge generated pose outside RGB trichromatic phosphor excitation, and using time-modulation (pulse number modulation) grayscale technology, up to 256 and 16.77 million colors, COG LCD Display obtained with the CRT as wide color gamut, with good color reproduction, PDP screen brightness is uniform, no bright and dark areas of the points, the image does not appear to take the geometric transformation and color shift phenomenon, there is no focus problems, less susceptible to external magnetic fields, with better environmental adaptability, with a very steep or value characteristic, suitable for time-division multiplexing driver; has a memory effect, even if the increased display capacity, and it is easy to obtain high brightness display; structure and manufacturing process is simple, without such as TFT high precision, small investment, suitable modern mass production; has storage characteristics, high brightness, large screen, full-color, good contrast, making images clearer, more vivid colors, feel more comfortable viewing angle, showing the effect is more ideal; color reproduction is good, rich gradation can be more than 256, the color gamut is close to CRT.
A rapidly changing screen response speed, suitable for displaying animated images, and playback video signal; wide viewing angle, both horizontally and vertically upward angle up to 160 degrees, can provide exceptionally bright, uniform and smooth image and a larger viewing angle; small, light weight, thin, pure flat, long life, particularly for public information display, wall-mounted large-screen TV and automatic monitoring systems. Resistant ions emitted through an electrode base material, dielectric protective film phosphor long life, life of a PDP can hundreds of thousands of hours, and working life of the color PDP is usually up to 2-3 million hours, which is typical of the lcd module 25,000 hours lifetime value considerably, but far longer life projection tube. But there is also the inadequacies of PDP, such as thin glass substrate on the display, you can not put too much or too little pressure, but can not bear the weight. Each pixel on the display is a separate self-luminous, power consumption, the monitor must be installed on the backplane sets of fan for heat dissipation. In addition, PDP driving voltage is high, the price is also relatively high. As the manufacturing process and assembly technology improvements, the cost is declining, practicality is increasing, increasing the contrast in the display quality also improved.
A rapidly changing screen response speed, suitable for displaying animated images, and playback video signal; wide viewing angle, both horizontally and vertically upward angle up to 160 degrees, can provide exceptionally bright, uniform and smooth image and a larger viewing angle; small, light weight, thin, pure flat, long life, particularly for public information display, wall-mounted large-screen TV and automatic monitoring systems. Resistant ions emitted through an electrode base material, dielectric protective film phosphor long life, life of a PDP can hundreds of thousands of hours, and working life of the color PDP is usually up to 2-3 million hours, which is typical of the lcd module 25,000 hours lifetime value considerably, but far longer life projection tube. But there is also the inadequacies of PDP, such as thin glass substrate on the display, you can not put too much or too little pressure, but can not bear the weight. Each pixel on the display is a separate self-luminous, power consumption, the monitor must be installed on the backplane sets of fan for heat dissipation. In addition, PDP driving voltage is high, the price is also relatively high. As the manufacturing process and assembly technology improvements, the cost is declining, practicality is increasing, increasing the contrast in the display quality also improved.
2013年8月19日星期一
Cleanroom technical knowledge
First, it must be designed and built a clean room. Therefore, we must consider:
(A) design standards to be adopted;
(2) what do the design floorplan, using what materials;
(3) How to provide a variety of clean room facilities.
Secondly,lcm module the clean room has been installed and working, you must test whether it meets the design requirements. Cleanroom life should continue to be monitored period, in order to ensure that it remains up to the required design requirements.
Finally, the clean room must be properly run, so they are not the products manufactured contamination. This requires personnel and materials from admission to the choice of clothing, clean room requirements, clean room cleaning must be implemented correctly.
2, the origin of cleanroom
Early on, the first batch of cleanroom first appeared in the hospital. Labor was Liszt realized bacteria can cause surgical wound infections, mini lcd module and this is his historic contribution. He thought, should remove bacteria from the operating room to prevent infection. This is the number of cleanroom scientific theoretical basis.
Liszt in the 1880s used to kill bacteria hungry sterilizing agent (phenol), greatly reducing the Scottish city of Glasgow Royal Infirmary operating room infections. He phenol in surgical instruments, wound, hand surgeon and phenol spray in the air to prevent airborne infections.
(A) design standards to be adopted;
(2) what do the design floorplan, using what materials;
(3) How to provide a variety of clean room facilities.
Secondly,lcm module the clean room has been installed and working, you must test whether it meets the design requirements. Cleanroom life should continue to be monitored period, in order to ensure that it remains up to the required design requirements.
Finally, the clean room must be properly run, so they are not the products manufactured contamination. This requires personnel and materials from admission to the choice of clothing, clean room requirements, clean room cleaning must be implemented correctly.
2, the origin of cleanroom
Early on, the first batch of cleanroom first appeared in the hospital. Labor was Liszt realized bacteria can cause surgical wound infections, mini lcd module and this is his historic contribution. He thought, should remove bacteria from the operating room to prevent infection. This is the number of cleanroom scientific theoretical basis.
Liszt in the 1880s used to kill bacteria hungry sterilizing agent (phenol), greatly reducing the Scottish city of Glasgow Royal Infirmary operating room infections. He phenol in surgical instruments, wound, hand surgeon and phenol spray in the air to prevent airborne infections.
Leveling coatings technology
With the development of synthesis techniques, self-leveling coating production and application technology to get some development, as follows:
The emergence of self-leveling polyurethane coatings, polyurethane coatings taking into account the wear resistance,COG LCD Module good workmanship of the characteristics, some manufacturers began to develop a self-painted flat polyurethane-based coatings, the current has been applied to a number of small projects.
Matt self-leveling coating: consider some of the actual production and aesthetic needs, sometimes requires surface appears matt effect, the previous number of manufacturers in the construction or engineering company only through the brush at the surface of the pressing of the dry matte effect, so matte effect may lead to non-uniform,Graphic OLED Display and now some manufacturers through adjustment formula, developed a natural matte effect of self-leveling coatings, using this paint after construction, and no other process can get matte effect.
The emergence of self-leveling polyurethane coatings, polyurethane coatings taking into account the wear resistance,COG LCD Module good workmanship of the characteristics, some manufacturers began to develop a self-painted flat polyurethane-based coatings, the current has been applied to a number of small projects.
Matt self-leveling coating: consider some of the actual production and aesthetic needs, sometimes requires surface appears matt effect, the previous number of manufacturers in the construction or engineering company only through the brush at the surface of the pressing of the dry matte effect, so matte effect may lead to non-uniform,Graphic OLED Display and now some manufacturers through adjustment formula, developed a natural matte effect of self-leveling coatings, using this paint after construction, and no other process can get matte effect.
2013年8月8日星期四
New IC simplifies design of large flat panel displays
Brief introduction
Flat panel displays everywhere. Whether in the home, office or shop in the terminal equipment, or even in the car, you can see the flat panel display. Flat panel displays of the most common application is the TV, especially greater than 22 inches (40 inches and tend to) a large flat TV. OLED Display Module In this area, old-fashioned cathode ray tube (CRT) technology is facing challenges of new technologies. One of the most noteworthy is the thin-film transistor liquid crystal display (TFT LCD) and plasma flat panel displays (PDP).
Of course, CRT due to its high resolution, wide range of gray and artifacts can be displayed without the motor ability and other characteristics, is still the leader in large-screen displays. However, non-CRT display properties, such as TFT LCD and PDP technology continues to progress in providing great convenience to users, they are slim, streamlined appearance, as well as lighter weight, so that you can hang on the wall. However, these new displays of the cost of production is very high, so the price is too high. However, TFT lcd module constantly improve performance in various areas: readability, response time, and the driving characteristics. In addition, many with large semiconductor manufacturing equipment companies are confident that through the use of existing production facilities, they can pay off the cost of production and therefore the cost of production will be significantly reduced. Currently, 32-inch and 40-inch TFT LCD display has been put into 54-inch display has sample presentation.
Flat panel displays everywhere. Whether in the home, office or shop in the terminal equipment, or even in the car, you can see the flat panel display. Flat panel displays of the most common application is the TV, especially greater than 22 inches (40 inches and tend to) a large flat TV. OLED Display Module In this area, old-fashioned cathode ray tube (CRT) technology is facing challenges of new technologies. One of the most noteworthy is the thin-film transistor liquid crystal display (TFT LCD) and plasma flat panel displays (PDP).
Of course, CRT due to its high resolution, wide range of gray and artifacts can be displayed without the motor ability and other characteristics, is still the leader in large-screen displays. However, non-CRT display properties, such as TFT LCD and PDP technology continues to progress in providing great convenience to users, they are slim, streamlined appearance, as well as lighter weight, so that you can hang on the wall. However, these new displays of the cost of production is very high, so the price is too high. However, TFT lcd module constantly improve performance in various areas: readability, response time, and the driving characteristics. In addition, many with large semiconductor manufacturing equipment companies are confident that through the use of existing production facilities, they can pay off the cost of production and therefore the cost of production will be significantly reduced. Currently, 32-inch and 40-inch TFT LCD display has been put into 54-inch display has sample presentation.
2013年8月5日星期一
LCD lamp and other related arguments detailed
Since the LCD is a cross between between solid and liquid substances, so the LCD itself is not luminous, for technical, cost and design control and other considerations, it is impossible for every Character LCD
Module monitor LCD pixel is individually assigned a light, and therefore have internal lamp to illuminate the LCD panel. Is currently using more than two lamps designed that the upper and lower sides of the liquid crystal have a lamp, the liquid crystal is also the most common.
Now, with the technology continues to evolve, but also began to appear four and six lamp lamp design. In the four-lamp camp divided into two categories, one category is based on the original two lamps, the left and right of the screen each increased by a lamp, the lamp became four, more typical Mayan V500; while the other two are in the original lamp, based on a parallel increase in the upper and lower lamps, four parallel composition of the lamp, more typically Xunyi "Chun Jingjie" LCD.
We look at six lamp, in fact, six lamp design actually uses three lamps, manufacturers will have three tubes bent "U" shape, and then placed in parallel, so it looks like the six tubes in a similar The. Currently, the market-leading brands such as several LCD LG, Samsung, ViewSonic, Chun Jingjie mainstream products are produced with four lamp design, and six tubes of this design in the country currently only CHILI mini lcd module monitor in use.
That in the end what is good? We say no one is bad. Let me talk about two tubes, this technique is a relatively old, but it is also the most mature, followed by four lamps are developed out from two lamps. Some people think that two lamp brightness is uneven, in fact, this is not absolute. The top and bottom of each screen is a lamp, plus both optical devices can also be largely ensure uniform brightness, of course, the premise is better LCD workmanship.
From two out of the four lamp lamp design development, and its advantage is that the screen can be uniformly supplementary light, avoid screen gloomy existence of the phenomenon, but also can increase the expressiveness of color. In the viewing angle range, the naked eye longer feel differences in brightness. Six lamp allows more uniform brightness of the liquid crystal, it is very easy to understand. However, to be noted that the problem of heat lamps, six lamps are not only more than two out of the four lamp tube, and the two lamp more than a portion of the connection, so that the heat will cause the increase in . As we all know, the heat affects the life of the display, how to solve arising cooling, lamp life, low power consumption and other issues, which depends on the ability of manufacturers.
Now, with the technology continues to evolve, but also began to appear four and six lamp lamp design. In the four-lamp camp divided into two categories, one category is based on the original two lamps, the left and right of the screen each increased by a lamp, the lamp became four, more typical Mayan V500; while the other two are in the original lamp, based on a parallel increase in the upper and lower lamps, four parallel composition of the lamp, more typically Xunyi "Chun Jingjie" LCD.
We look at six lamp, in fact, six lamp design actually uses three lamps, manufacturers will have three tubes bent "U" shape, and then placed in parallel, so it looks like the six tubes in a similar The. Currently, the market-leading brands such as several LCD LG, Samsung, ViewSonic, Chun Jingjie mainstream products are produced with four lamp design, and six tubes of this design in the country currently only CHILI mini lcd module monitor in use.
That in the end what is good? We say no one is bad. Let me talk about two tubes, this technique is a relatively old, but it is also the most mature, followed by four lamps are developed out from two lamps. Some people think that two lamp brightness is uneven, in fact, this is not absolute. The top and bottom of each screen is a lamp, plus both optical devices can also be largely ensure uniform brightness, of course, the premise is better LCD workmanship.
From two out of the four lamp lamp design development, and its advantage is that the screen can be uniformly supplementary light, avoid screen gloomy existence of the phenomenon, but also can increase the expressiveness of color. In the viewing angle range, the naked eye longer feel differences in brightness. Six lamp allows more uniform brightness of the liquid crystal, it is very easy to understand. However, to be noted that the problem of heat lamps, six lamps are not only more than two out of the four lamp tube, and the two lamp more than a portion of the connection, so that the heat will cause the increase in . As we all know, the heat affects the life of the display, how to solve arising cooling, lamp life, low power consumption and other issues, which depends on the ability of manufacturers.
2013年7月26日星期五
Polaroid selection rules
A + regulatory product patches, in principle, the entire selection of original Polaroid, some of the products available TFT LCD Module No optical triangulation material; principle to use original negatives entire polarizer.
A regulation of the surface film, generally used in the original grade whole polarizer, TFT no optical triangulation material or scrap inventory more TFT polarizer; or after the main channel of procurement scrap suppliers TFT polarizer film, negatives Polaroid factory level with the whole or composite negatives.
Class B product patches, try to use less inventory scrap TFT polarizer, scrap pieces, or will no longer be the main channel for purchasing scrap suppliers TFT polarizer; film composite film.
Customers have special requirements, lcd module according to customer requirements special polarizer.
Polaroid use:
Gently, not with a hard object on the surface to push plans.
Can not take place when folded.
To the rank of tablets and scrap pieces to be put into production before the dichroic filter.
Patch, be sure to let the LCD cleaning solution remaining on the surface clean after complete evaporation can paste the polarizer.
Wide temperature Polaroid sure to cut the glue is placed facedown.
2013年7月10日星期三
These aspects of LCD TVs
D-sub15pin
D-sub VGA card is generally the most common computer port, the port uses the asymmetric distribution 15pin connection, which works within the memory image stored in digital format in the RAMDAC after the analog signal into an analog frequency modulation signal and then and then output to a digital display device imaging, so VGA signal at the input (digital display equipment), you do not like the other video signal decoding circuit that go through a conversion matrix. From the foregoing principle known VGA video imaging video transfer process is simple, so the VGA port, has many advantages, such as no separation circuit synthesis crosstalk no wear and tear.
VGA video signal transmission signal to the main computer, VGA port contains an I2C bus, so the host and display devices can be negotiated and automatically determine the best display format, and "plug and play", but the use of hybrid video signal, so after a lot of separate derivative 3RCA or DVI port as such. Many LCD projectors also support the component video adapter to D-sub15pin this video inputs.
-Video
SeparateVideo was also known SUPERVIDEO, but the correct law SeparateVideo which is called discrete video terminal input, it will be called SUPERVIDEO S-Video, with the S-VHS VCR and developed. S-Video is a five-pin S-video port terminals, by the video luminance signal (Y) and chrominance video signal (C) and all the way to the public mask ground components. It separated luminance and chrominance output composite video signal output to avoid the interference between the luminance and chrominance.TFT Lcd Modules
1RCA because it no longer compared to Y / C hybrid transmission and, therefore, no longer need to be bright separation and decoding, and the use of separate transmission channel video equipment largely avoided the signal crosstalk generated image distortion , which greatly improves the clarity of the image, but the S-Video still the two color difference signals (CrCb) mixing all the way chrominance signal C, and then be transmitted within the display apparatus for decoding the Cb and Cr treatment, so much will bring some signal loss and distortion, but quite subtle. S-Video video resolution is higher than 1RCA terminals. S terminal transmitted video signal fidelity higher than the V terminal with S terminal is connected to the video device, its resolution up to 400-500 bar, affecting quality and 3RCA (Component YPbPr) is roughly equal, the transmission distance up to 3-5M.lcd module
1RCA (commonly known as the standard video input terminals / AV terminal)
V terminal is Video (video) terminal short, it is the sound / draw separate video terminal, although the transmission of the video signal and the audio signal through other terminals. The most common is called AV terminal port group, which is composed of three separate RCA plugs (also known as RCA terminal) composition, in which the V port to connect composite video signal, the yellow jack; L port to connect the left channel sound signal is white jack; R port to connect right-channel audio signals to red jack. This mixed video signal without the RF signal that modulation, amplification, detection, demodulation process, signal fidelity is relatively moderate, the use of wire great impact on image quality, resolution, generally up to 350-450 pieces, but because an analog port numbers used in flat panel display devices, and more analog to digital process will lose a lot of S / N ratio, it is generally relatively flat display device numbers is not recommended.
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