Custom LCD Module

LCD Module, Custom LCD Module, TFT Displays, OLED Displays, LCD Glass and Touch Screens perform a critical role in a world where consumer demand for information display is growing rapidly. Densitron LCD Modules, TFT LCD Display and TFT LCD Display to ensure that the display solution brings the product capabilities to life. Densitron actively works with our client partners to deliver exciting affordable LCD Module, LCD Display, TFT Display, OLED Display, Touch Screen and LCD Backlight product display solutions for the designs of tomorrow.
With extensive experience in design and manufacture of Standard and Custom LCD, TFT, FSTN, STN, TN, OLED, LED Backlight and Touch Screen display modules our proactive appraoch to module development can provide a partial or LCD module manufacturer even a complete assembly where appropriate.

Plasma TVs achieve the 3D effect of the three technical advantages

Plasma TVs name is PlasmaDisplayPanel, Chinese called plasma TV, which is injected into the gas mixture between two thin glass plates , and the use of light-emitting phosphor imaging voltage is applied to the device . Compared with the CRT tube display with high resolution, large screen , slim rich colors , bright features. Compared with TFT LCD Module, with high brightness, high contrast, viewing angle, bright colors and rich interface features .

Plasma TV Plasma (PDP) as compared with the conventional CRT TV TV TV PDP most prominent feature is the " large and thin," but also in other characteristics : thin and light structure ; Wide ; against electromagnetic interference ; flat image without distortion ; no convergence and focus problems.

The disadvantage ; Because the use of R, G, B phosphor from the light on, he addressed a fixed pixel display images , time display of high brightness, high contrast of still images , it is easy to produce residual images , and even burns screen phenomenon . So when you watch TV , without affecting the normal viewing conditions , to minimize the TV brightness and contrast. Plasma (PDP) and compare LCD liquid crystal (LCD, LED) televisions (Lcd display module) televisions , plasma and LCD televisions are contemporary mainstream technology , represent two different directions. Two flat-panel TVs have their advantages and disadvantages , plasma TV with a flicker-free images , thin , lightweight , colorful , lifelike images and other characteristics, and relatively easy in terms of large-scale screen . The disadvantage is the relative LED TV is slightly heavier.

LCD TV also has a flicker-free images , thin , light weight and other characteristics, and the LCD screen is widely used in PC area, but higher in terms of the big screen of LCD technology behind plasma , big screen LED TVs cost , easy to watch affected by the viewing angle .

The definition LCD module

LCD module simple point that the screen backlight + + PCB board + iron box.
Power terminal , instruments and other components is a liquid crystal display module ,TFT Lcd Modules its position is equivalent to the CRT picture tube .
The other part includes a power supply circuit , a signal processing circuit, of course what the housing .
The main screen is divided into modules and backlight components. The two parts are assembled together, but when the work is independent of ( i.e., the circuit is not associated ) .
Principle LCD backlight unit is issued uniform surface light, the light transmitted through the LCD screen of our eyes. The screen in pixels is the role of these light processing to display an image. Both parts contain a lot of components ,graphic oled module will not elaborate here .

Display does not light how to solve?

We often see in the network or forum that someone asked, "My monitor is not lit", "computer display does not light after power" and so such a problem, in fact, the display does not light the reasons are multi-faceted, but most of the main or by the other components due to the factors:

1, the monitor is not connected to the supply;

2, the display power is turned on, the computer host is not normally open;

3, the monitor to the computer directly to the signal cable is not connected properly, or the signal line failure OLED Module;

4, the problem of three black (according to the introduction of three issues to resolve, not repeated here).

Solve Step one: confirm whether it is the monitor power is not on. If the power, turn the power switch on the monitor, the monitor's power indicator will light up. Signal is issued when there is access to green light, no signal is emitted when the orange light access.

Step two solutions: Make sure the host computer and the monitor signal transmission between the cable is properly connected. If properly connected, and the display still does not light, we suggest that you replace a signal line to try again and if it still does not light, then that is not what causes the cable.

Solve Step Three: Make sure the computer mainframe's power is switched on. If the host computer is powered on, press the power button the monitor screen remains blank, then you should check the host computer's hardware is started. Should first check whether the host computer fan rotation, if the fan does not rotate, then that part of the host's power supply problem. If everything can turn the fan, you should check the memory is installed correctly. If you are properly installed, and the computer starts correctly, we suggest that the replacement of the normal use of the host computer to try. If the monitor can light after replacement128x64 lcd display, then that is the original fault monitor itself; if you can not light up, then that host computer problem.

If the problem is the monitor itself, then it should go to the respective brand service center for maintenance and inspection.

TV routine maintenance Cheats

Instant has entered the spring, believed to be working in your home for a day-long TV also requires you to give it to do a comprehensive maintenance, in order to allow everyone to do maintenance to the TV in the process will not on its damaged, Next, I'll introduce a few Serial Lcd Display Module TVs Maintenance Tips, interested consumers do not miss.


Standard one: avoid prolonged display a still picture. When the machine is not used in a long time, best to turn off the machine, or reduce the display brightness, otherwise easily lead to burn out or aging. In addition, prolonged for a picture display will cause damage to the LCD screen, it may cause some LCD pixel overheating, thereby enabling the TV appear more dead pixels.

Rule two: use the recommended resolution. Currently, some LCD TV resolution can be adjusted, however, use the recommended resolution LCD screen LCD TV is a form of protection, the recommended display resolution LCD TV screen to the highest quality imaging.

Standard three: Avoid scratches, impact surface of the lcd modules screen.

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 .

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 difference between hard screen soft screen

What is soft screen ? What is hard screen ? We distinguish between the method is generally light slip OLED Module screen , if there is a situation like waterlines are soft screen , if not that hard screen . IPS hard screen refers to a screen . Continue deep inside screen resolution , the LCD can display the basic principle is filled between two parallel plates in the liquid crystal material , the liquid crystal material is changed by the voltage of the row in the column internal molecular condition , in order to achieve the purpose of shading and light to show different shades , patchwork of images , but as long as the two flat plates coupled with three- color filter layer , you can achieve the display color images . The basic structure of hard and soft screen the rest is the same arrangement of the liquid crystal molecules .
Soft -screen liquid crystal molecules are arranged vertically , hard-screen liquid crystal molecules are arranged horizontally . As hard screen molecular arrangement structure is arranged horizontally so reducing delays of television , but the light leakage increases, in order to reduce light leakage in the screen of the external add a layer of optical film . This way, screen brightness will not have the soft screen brightness , so continue to make , to increase television back to increase the brightness of the backlight lamp , the results on the high power consumption . Since soft-screen liquid crystal molecules are arranged vertically , so layering is better, quality should be better.

Speaking of which almost everyone will understand it. I'll summarize the advantages and disadvantages of two kinds of screen 1 . Hard screen response speed faster than the soft screen ; 2 soft-screen consumes less than hard screen ; 3 soft-screen colors better quality ; 4 soft screen and hard screen , like the strength of the screen ,lcd module if someone tells you that it is hard screen is hard and firm, then this person is in the flicker you decide .

Large-screen LCD splicing manufacturer's recommended options

LCD splicing screen because of its slim body of the screen and become trendsetting new tiled display technology in recent years, with LCD screen (LCD) is a large screen splicing unit systems , large-screen monitor in the field of application of growing interest , the LCD screen the relevant parameters to improve , with low power consumption , light weight , long life ( generally work more than 50,000 hours ) , with no radiation , screen brightness uniformity , bright color , etc., and splicing gap narrowing , reaching unilateral fight seam minimum 6.7mm, increasing the price decline for industrial control , information distribution , video surveillance and other fields of ultra-narrow LCD display wall system is relatively low construction cost , which is the LCD display wall system came into being inevitable reasons . Here we will give you detailed instructions from several aspects :
Display size selection
DID Narrow lcd module system with 40-inch and 46 -inch two specifications.
First , the height and width of the room from the counting .
For example, a reserved area for the indoor display wall : width 8.8 m , height 3.2 m .
First with a height of about 1 meter minus the bottom support height , 3.2 m -1 m = 2.2 m .
Next, select the display size from the display height , 16:9 display specification , 40 -inch height is generally 520 ~ 550mm, width is generally 910 ~ 950mm, 46 -inch General 600 ~ 630mm, width is generally 1040 ~ 1080mm.
Based on the basic dimensions we compute the stacked layers, 40-inch : 2200 ÷ 550 = 4, up to four layers , 46-inch : 2200 ÷ 630 ≈ 3.5, rounded up to 3 layers. With us to confirm the display width , 8.8 m is the net size of the room , the area should be displayed with the middle part , need to subtract both sides of the door or decorative width of at least 3 meters , width of the wall up to the reality that is 5.8 meters, which when the arrangement of the display can be calculated since the number of 40-inch : 5800 ÷ 950 ≈ 6.1, rounded up to 6 ; 46 inch : 5800 ÷ 1080 ≈ 5.4 rounded up to 5 .
Thus, in theory, scale stitching came out : 40 -inch , 4 × 6; 46 -inch , 3 × 5.
Next, we will choose it. 40 inch for selection : 2 × 2,2 × 3,2 × 4,2 × 6,3 × 2,3 × 3,3 × 4,3 × 6,4 × 4,4 × 6; 46 -inch applicable select : 2 × 2,2 × 3,2 × 4,3 × 2,3 × 3,3 × 4,3 × 5.
If it is a large screen video monitor screen display along the entire image or a dispatching room high-resolution image display is recommended to choose the right size , usually , 2 × 2,3 × 3,4 × 4, because it is a 16:9 display screen, so the general principle of choice is the number of columns ≤ rows , or graphic prolate type display .
If only single-screen display , no combination of zoom display purposes , and its size can be spliced ​​according to the maximum size of the design .
This example ,low temperature 160x160 lcd a more appropriate choice entire wall is : 3 × 3,46 inch ; 4 × 4,40 inch .
Choose one of the two best principles generally follow the same general area , the large size priority on the grounds that the large size of a small number of splicing gap , the overall style is more concise .
Another option is that in the same plane, the number of the display screen to do more , is generally used in a large number of video surveillance applications.

LCD liquid crystal

LCD projection technology since the 1990s , led by the Japanese projection technology, its development works like slide projector, high brightness halogen bulbs by the Department , the irradiation LCD panel , and then the image through the panel , after the projection lens and the focus group enlarge image, display the image projected on the screen , the projector has three LCD panels inside each piece are responsible for RGB three -color imaging, this three primary colors overlap images and projected through a color image. LCD projection technology projection process is mainly the light bulb through the filters, beam splitter , and then refracting lens at the image projected onto the screen. LCD projectors projector market is currently the main product. LCD is between liquid and solid material between itself does not light , nature of work greatly affected by temperature , the operating temperature of -55 degrees to +77 degrees . The liquid crystal projector of the photoelectric effect , the liquid crystal molecules changes in the electric field , the liquid crystal cell affect transmittance or reflectance , thus affecting its optical properties , generating a different gradation and color images. LCD projectors better color reproduction , resolution up to SXGA standard , small size , light weight, operation is extremely easy to carry , and relatively inexpensive . Character LCD Module technology currently focused on the core technology and SONY EPSON two .
LCD projection for the current relatively mature technology, but due to the performance of the product characteristics , in the face of DLP, LCOS competition, have the following major technical problems to be overcome :
" Lack of brightness : Due to limited aperture ratio , the light utilization is low, in addition monolithic coupled with color filters absorb light source , the light utilization below 10% , so the brightness is still much room for improvement , the current vendor to increase the chip size to overcome .
" Black and white contrast : LCD liquid crystal because of its development have leaked and, therefore, can not make a true black , black and white contrast is poor will affect the quality of three-dimensional, which must be arranged by the LCD to improve the shading effect , this is the family video application is very important.
" Heat problem : Due to the high intensity halogen bulb temperature is high , the heat lamp life problems of a big influence .
"LCD itself, the physical characteristics of the decision of its slow response , over time , performance declined in 1995 by Japanese companies led by LCD manufacturers developed a polysilicon (Poly-silicon) technology , making the projection display systems have more choices . polysilicon (Poly-silicon) technology uses cylindrical lattice , and the TFT LCD Displays on the front plus a set of micro- convex lens , the light is converted into the mirror parallel to the cross of light , this would resolve the crystal silicon optical transmittance of LCD technology problem of low efficiency , the light transmittance rate of 95% , so the same light conditions , improved brightness.

LCD large screen system basic functions

Traffic violations business processing functions : The system can manage a variety of illegal information , including illegal information entry , query, modify , multi-level audit check function to ensure the effectiveness of illegal evidence , but also to manage the illegal fines , and the bank account ;
Traffic information collection , statistical analysis functions : The system offers a variety of implementation of traffic data, such as traffic flow, speed , time share, share space ,mini lcd module time headway , traffic density , etc., while front-end systems based on vehicle information acquisition device fed back to the large amounts of data , the use of the unique system of integrated treatment based on geographical environment , the ability to analyze traffic data , obtained real-time traffic status , provide visual traffic management decision support information ; video surveillance capabilities : The system uses SVG and GIS technology, and road combined with real-time traffic conditions , by looking at the monitor intersection and road real-time video , reflecting the global , intuitive , real-time traffic conditions ; same time , the system can record the situation of road traffic for traveling time to provide video evidence of traceability ;
Surveillance management features: real-time surveillance site bayonet , alarm management , multi-level "blacklist" Management , found that " blacklist" real-time vehicle alarm ;
Device Remote Management function: panoramic electronic map, the entire region could reflect real traffic enforcement equipment digitization ( including digital cameras, camcorders ,lcd graphic display control panels, vehicle inspection and other components ) working status ; analog and digital system integration functions: using the Internet to achieve a video information , monitoring information network sharing service , will the existing monitoring systems and computer networks are combined in the entire network monitoring system to expand the application space .

Ultra Narrow LCD screen highlight the pursuit of

LCD splicing screen combines modern advanced power electronics technology, LCD technology, embedded hardware-splicing technology, multi -screen image processing, signal switching technology , machinery manufacturing as a whole . These organic combination of several technologies , to produce the LCD splicing screen display system products , in the fierce competition in the market fully reflects the strong competitive advantage. Ultra Narrow design professional LCD panel products, but also prominent features , and these features is exactly what users need to pay attention when choosing the core content . Introduction to the traditional ultra-narrow lcm module splicing has been reborn reborn , but also to the LCD splicing out of the patchwork too embarrassing .
Whether it is ultra-narrow frame design will directly affect whether the user is using this LCD splicing screen display solutions . The use of LCD backlight lamp as a light source , its edges generally wide , 46 inches LCD screen its common border width exceeding 30mm, if used for stitching, then splicing gap of at least 60mm, which would seriously affect the visual effects, the user can not acceptable. If you use the LCD screen did this unique ultra- narrow design , 55 -inch LCD splicing screen patchwork minimum only about 5.7mm, fully able to ensure a complete presentation screen. Ordinary civilian LCD TV or PC screen compared Ultra Narrow LCD stitching design professional LCD screen has a higher brightness. Ordinary civilian LCD TV or PC screen brightness generally only 250-300cd / m² (≤ 42 〃 ) and 400-500cd / m² ( 46 〃 ) , and professional narrow design of the LCD screen brightness can reach 700-800cd / meters ( 46 〃 ) . With LED backlight applications, large-screen brightness to the next level , reach 1800cd / sqm. Such a high brightness , low brightness, and can guarantee outdoor environments , the image is still clearly visible.
Currently, the normal LCD and CRT display device color saturation of only 72 %, while the ultra-slim bezel design professional TFT LCD Module splicing screen can be up to 92 percent of high color saturation , thanks to a newly developed color calibration technology, through this technology , in addition to still images for color calibration, but also on the dynamic screen color calibration , so as to ensure accurate and stable image output .

DLP and LCD splicing splicing

In the DLP and LCD splicing splicing technology competition hot technology today , it is easy to imagine a good platform is their common prerequisite before the line , only the large screen real estate with good prospects , update their technology in order to have the forward momentum greater development. Only the whole industry has a broader market segments , both of which have a greater sense of competition results .
However, large -screen industry apparently did not let these core technologies disappointed , after more than ten years of development, with the overall costs continue to decline , technology continues to upgrade and improve, expanding applications , large-screen market has entered a rapid growth , large screen industry in 2008, the Chinese market size of about 2.51 billion yuan in 2009, although the experience of the impact of the economic environment , but still maintained a rapid growth, and the National Games , 2010 World Expo, the Asian Games and other major competitions pulling things . Big screen industry can be described as a bright prospect .

With the large-screen display system in many fields monitoring command / control , public display applications play an increasingly large value , as well as national information technology, construction and management of new-type industrialization level of application of the continuous increase in the next 3-5 years , large-screen market will continue to maintain a steady growth trend .
Large-screen display products from the very beginning relatively narrow professional-grade , high-end applications ( such as broadcasting, electricity , telecommunications , etc. ) has been extended to cover today's public management , livelihood, energy, industrial , commercial, entertainment and dozens of subdivision applications, as long as necessary over 100 inches of high-quality , continuous display work place , are large-screen display product stage. In this respect , large-screen market growth trends not difficult to understand .
Widespread use of large-screen industry has a good premise trends , not only that, the introduction of large-screen industry , for many areas also have the use of the role and significance can not be ignored .
Modern military warfare is gradually transformed from mechanized warfare to information warfare . Civil air defense as an important component of national defense in the information war conditions, the height remains the leading international defense technology convergence . Meet the challenges of the new international military reform , winning the information war has become China 's national defense and army building in the new century, the main objective . In the civil air defense system using advanced information technology and its results -driven, information network based, command automation as the core, to improve conditions of information warfare civil air defense in the flat , War comprehensive protection. And how will the organization of civil air defense system command, communications , warnings and alerts , enables high-speed , fast, accurate and high-definition receiver display ,Graphic LCD Display large screen display wall system provides a dedicated operational command of the integrated control system for a perfect solution . System satisfies the non- wartime emergency response alarm in case of dispatching needs, but also on the circumstances of war and sudden large-scale, comprehensive implementation of dispatching the event , in order to achieve breakthroughs in space limit and greatly improve wartime reaction speed, thereby enhancing the whole of the police rapid reaction capability.
Based on the big screen big screen controller system and other systems formed by combining the body , in a large amount of information , high-data- stream and multi- channel business needs traffic police in the case , through the various systems , including CCTV monitoring , signal control , data acquisition , etc. system integration , the formation of an operational command can be scheduled " electronic sand table " for the leadership and command to provide a content-rich, accurate and efficient information platform for image display , flexible and convenient to be able to provide leadership for the Board close to the actual needs of a comprehensive information platform . Able for each signal , network resources and related information for real-time monitoring , analysis, and intelligent management,TFT Display Module  and the ability to timely submission of plans , programs and decision-making advice to ensure that the decision-making chain of command , the command can quickly communicate securely implementation and feedback , to ensure that the entire chain of command with linkage , efficiency , integrity .
Not only the military , big screen industry in many industries have a prominent role , it is also a large screen industry a huge role in a variety of areas , just let the big screen industry has a such a huge advance in the DLP, LCD splicing technology continues to improve today, on the big screen will have a greater role in promoting the industry .

LCD splicing screen technology

LCD is phase one, is like a liquid can flow , but also has some of the characteristics of the crystal structure of a class of substances, with special physical , chemical and optical properties. Liquid crystal itself does not emit light nor have any color, but the role of the voltage , the molecules corresponding to the angle of deflection will occur , and can drive with the deflection of light incident , the optical properties of this particular since the middle of the 20th century, is widely used in thin lcd module technology.
Structure similar to the LCD screen , " sandwich" , by a function of the type of board layers , films, liquid crystal composition, such as TFT screen , mainly by the fluorescent tube , a light guide plate , a polarizing plate , filter plate , a glass substrate , with the film, the liquid crystal materials , book mode transistors and other components. Liquid crystal is placed perpendicular to the optical axis of the polarizing plate attached two transparent conductive glass , the liquid crystal molecules of the alignment film according to the direction of the thin groove are arranged sequentially rotated . If the electric field is not formed , the light will smoothly from the polarizer into the goal, the incident light by the liquid crystal molecules rotate the direction of travel , then the light emitted from the other side . If the two conductive glass after power will cause the electric field between the glass , thereby affecting the liquid crystal molecules are arranged therebetween , the liquid crystal molecules twist rod , light can not penetrate , and then cover the light.
LCD screen must have a backlight, the incident light to go through the polarizer and then through the TFT Lcd Modules . The arrangement of the liquid crystal molecules will change the angle of light through the liquid crystal , and the light through the color filter film and then another piece of polarizing plate . So as long as the voltage value of the liquid crystal to change stimulus can control the final appearance of the light intensity and color , so you can change out the LCD panel there are different shades of color combinations.

Stereoscopic LCD monitor works

Because the human eye have become accustomed to their daily lives three million three-dimensional image, so that the inner and the other displays containing movie screen displayed should also be three-dimensional image, however, is surprising that the demand for this kind of subconscious, but hinder long in technological constraints, fast and will be irresistible to accept plane images per second. In addition to the digital information revolution driven multimedia society arrived early, but also re-ignited the medical, animation, CAD / CAM and other areas for the three-dimensional image of the strong demand for dollars.

Three-dimensional image splitter (imagesplitter)

Japan is the first in the three-dimensional imaging technology for research, as early as 94 years without special glasses, has launched three-dimensional image segmentation, use of this image segmentation can be used to view stereoscopic video, basically it is based on the parallax barrier ( parallaxbarrier) alternately arranged first principle of the image through slender columns grating after capture by the two observations, due to enter the left and right eye images vertical parallax barrier is due to be separated, causing the left and right eye images captured produce tiny deviation, and finally through the retina as a three-dimensional image reading.

Using this principle can be for those who watch the viewing screen is the most appropriate place, in addition to providing the viewing by about two images, the images from the front of the display area to the optimum distance will cover the area, low temperature lcd display while those on the viewing statement becomes normal stereoscopic three dimensional images. But two adjacent images sight, will be left and right two reads in the unconscious state capture form so-called inverse visual field, in other words using this three-dimensional image segmentation must be fixed by the viewing certain the viewing position to produce three-dimensional visual effect.

Therefore, in order to improve the development of the missing head detection system (headtrackingsystem), the use of this detection system can be readily detected by the viewing position of the head, once produced, as the inverse of the field when the display will immediately switch around two images are read, Thus not only can prevent the occurrence of inverse visual problems, but also can expand the three-dimensional image of the impressive visual element range.

However, the actual use of detection systems on the head when they are found in Figure 3 of the A site of the diamond-shaped area at the interface of non-long narrow, causing the viewing experience a subtle overlapping images, distortion (crosstalk) and black vertical stripes (moire), etc. the viewing of the poor and the vulnerable eye pain fatigue opposite effect. SANYO view of the system composed of the liquid crystal to change the electron-driven movable header detection system, lcd module if the head portion of the viewing zone moves to the interface, the new header detection system can be immediately detected, while moving the The three-dimensional image segmentation openings, which means it is readily detected using the detector to monitor the viewing position of the user's head, and the detection results feedback to image segmentation, adjustment, control is displayed on the LCD monitor the left and right of the image position two, the use of this new technology could watch the viewing very wide range of three dimensional stereoscopic images.

The difference between amorphous and low-temperature polysilicon

What is a low-temperature polysilicon:

Temperature polysilicon LTPS is LowTemperaturePloySilicon abbreviation generally low temperature polysilicon manufacturing process temperature should be below 600 degrees Celsius, in particular different from the a-Si for LTPS fabrication manufacturing process "laser annealing" (laseranneal) requires even more so. Compared with a-Si, OLED Module LTPS the electrons move faster than a-Si 100 times faster, this feature can be explained by two problems: First, each LTPSPANEL than a-SiPANEL fast response; secondly, LTPSPANEL exterior dimensions than a-SiPANEL small. The following are LTPS compared with a-Si held significant advantages:
1, the driver IC of the peripheral circuits into the panel substrate viability of the stronger;
2, the reaction is faster, the appearance of smaller, joins, and fewer components;
3, panel system design is more simple;
4, panel greater stability;
5, higher resolution,
Laser annealing:
p-Si and a-Si LTPSTFT a significant difference in the manufacturing process is the application of laser irradiation. LTPS during the manufacturing process on the a-Si layer so that the laser irradiation a-Si crystals. Since the packaging process on the substrate to complete the conversion of polysilicon, LTPS use of laser energy to the amorphous silicon into polycrystalline silicon, this process is called laser irradiation.

Electron mobility:
a-SiTFT in electron mobility than 1cm2/V.sec, while the driver IC requires a higher operating speed of the circuit to drive. This is why a-SiTFT difficult to integrate the drive IC to the substrate. In contrast, p-Si moving speed of electrons can reach 100cm2/V.sec, 16x4 lcd but also easier to integrate the driver IC to the substrate. The result is, firstly since the drive IC, PCB and coupling integrated into the substrate to reduce the production costs, followed by the product lighter weight, thinner.

HTPS LCD Applications

HTPS applications are usually used as the display of amplified products. Such as LCD projectors, rear projection TV and so on. In general, the phone or the computer's TFT LCD Module screen, are of direct-view, that is, the user can directly watch the screen and read the information. HTPS TFT Although he is one, but can not be directly used for other purposes phone or computer screen.

HTPS LCD applications can be divided into the following three: OHD (Over Head Display), Helmet and LV (Light Valve). Its main uses are described below:

OHD: head-up display, the image projected on the windshield (or transparent glass), used in the car or on the plane, and in many of them a glimpse into their combat film appearance;

Helmet: Here is specifically used in a virtual fantasy (Virtual Reality) helmet of imaging;
LV: can be translated into a light valve. When HTPS Serial Lcd Display Module projector in action, because of all the light will be through HTPS, by HTPS to determine the extent of penetration of light, so it is called "Light of the valve."

LCD and plasma are not perfect

View recently about LCD and plasma research data and market price information, almost all surprised us. Just 10 years ago, these products are out of reach, 42-inch plasma display panel reached a staggering price of $ 15,000, the application seems to be more than we actually need for the display. However, today's market growth rate is surprisingly amazing, this year, in a variety show, we can feel the size of many of the various models of COG LCD Module and plasma, while a wide variety of input configuration device (analog or digital), media servers, stand equipment, wall equipment, rack equipment and access Mike and other products also will be unveiled.

We all know, LCD and plasma TVs TV consumer market quickly developed into popular products are widely used in home bedrooms, even hanging on the kitchen wall. And LCD and plasma are also installed in the room showing a rapid upward trend, on-screen display is more commonly used in conference rooms or lounges.

As with other new technologies, lcd module and plasma constant development, there are also some problems: LCD pour point is very low; plasma appears stigma; plasma at high frequencies will produce noise; plasma for leaks; LCD display is also there will be imprinted; LCD can not display black.

LCD technology leap era was fine

Liquid crystal is found to have a hundred years of history, but since it is used in display technology since it brought out enormous vitality. TFT LCD Display (Liquid Crystal Display) is the use of imaging of physical properties of liquid crystal to achieve. The imaging principle to restore the LCD monitor has a precise picture of the screen easy to adjust, the display does not flash, low radiation, and many other advantages, but there is also the response time, viewing angle, color performance, brightness, and contrast and other five major defects, has been a stumbling block to restrict LCD popularity.

With the development of LCD technology, Lcd display modules performance and manufacturing processes has been a qualitative leap, these stumbling blocks eleven were kicked: 2005, BenQ starting the world's first gray 4ms LCD monitor on the market 8ms, 12ms has become mainstream , declared had been plagued smear, blur phenomena become historical issues; in the brightness and contrast, Samsung's 12 big magic skills can be achieved on the brightness, contrast, color, display mode and a series of adjustment, AOC and Philips six Large Xpress technology and "four smart technology" can also be very convenient adjustment was carried out in this regard; As the viewing angle, the main direction of attack tip locked in panel technology, currently used mainly PVA, IPS, MVA wide viewing angle technology, etc. has a very significant effect, horizontal and vertical directions can get close to the 170-degree viewing angle.

As a tool for man-machine dialogue, the display of the most important was undoubtedly its high-quality display, to provide users with real natural visual experience, despite the LCD in other technical areas in recent years continue to make breakthroughs, but the colors in the image and reducing power expressive force has been stuck. Especially with the liquid crystal display applications continue to extend, people are no longer satisfied with the character, simple display images, and more are used in movies, games and other multimedia entertainment, the image color reproduction and levels of performance made very high demand. Undoubtedly, LCD still need to improve in this regard.

PDP applications

PDP will remain mainly used in office automation equipment in the field, but also in the personal computer field has a place. From the PDP's excellent display quality and performance considerations, it can be said is the most suitable field of office automation market.Character OLED Display From the current laptop and handheld personal computer application point of view, PDP likely to develop in these areas, because of their thin and light low power consumption, is available for notebook computers. Further improve the clarity of the PDP and increase capacity, the workstation will field its victory over other types of flat panel displays of the best fields. Colorization in its implementation and to further improve display quality after a remarkable skill. As for the industrial equipment, instrumentation, public information displays and ticket machines and other fields, can certainly make use of the advantages of the PDP easy resolution, but the market is not great.

PDP has been used sale terminals (POS), the bank teller terminals and outdoor display. The newly developed high-capacity PDP has been in extensive use in OA equipment, and the application prospect. Currently various Japanese manufacturers produce the PDP, which dot size of 0.2mm, lcm module light colors are mostly bright orange color gamut close to CRT. Because PDP is self-luminous, so clear display. Its current application, including the main fault is the display driver circuit including price is still too high. Japan recently Fujitsu, Matsushita Electric Company has changed its color PDP push commercialization. Fujitsu's newly manufactured color PDP as an alternative to using helium neon gas discharge discharge, so that emit ultraviolet light emission to excite the fluorescent material, the effect is quite good. Matsushita Electronics Corporation recently developed into a green and amber monochrome PDP, its success trick is able to control filling gas composition, its green hue can be comparable with the CRT.