Seven strokes teach you to love TV

Nowadays, LCD TV has become people's lives than the essential part , but also the highest of the highest frequency of use , and then how to care for the life of the " big plaything " may become the subject of great concern , the following let together we look at it, whether you are in life to cherish your TV like it !

1 do not readily "off" TV

Let us not waste energy, but to pay attention to weigh the power is turned on the TV Life. As we all know , the backlight for the LCD TV consumes all accessories in life the most serious one part , it and our home use fluorescent tubes are very similar .

So, it 's life and times also ignite a great relationship . Start when the warm-up and high-voltage pulse sputtering cathode electron substance increases, shorten lamp life. If you develop a habit of readily turn off the TV , four times a day to open computing , lamp life will be reduced to the original 1 /2.

(2) Avoid prolonged work

This one is not with the above considerations conflict . In the case of ultra-long work , the heat in the LCD TV accumulating inside the body , which is not enough for the other electronic components as much of a threat , but it is possible to burn the liquid crystal panel , thereby forming a large area of ​​dead pixels .

3 professional way to clean

Due to static reasons, LCD TV screen surface is very easy to collect dust . But clean water is a very unwise way to clean. First, the general effect is clean , and easy to leave water marks . More importantly, the liquid crystal is very easy because of moisture and cause permanent

Persistent damage ( If water droplets penetrate the screen , avoid electricity, let moisture in a warm environment slowly evaporate.

4 Avoid scratches, twisted or hit the surface of the LCD screen

Useful for many people pointing fingers on the screen of habit, this is irrelevant for CRT TV , LCD TV, but may cause fatal damage , but see themselves and their children and their toys , any impact on the LCD screen , scribing will bring direct damage, and most likely to make entire screen scrapped.

5 . Still images can also damage the LCD screen

At present, many LCD TVs with digital photo browsing, but for a long time for a picture display may cause damage to the LCD screen . When the machine is not used in a long time , to avoid the machine displays a screen point , best to turn off the machine . Although the LCD TV calories than CRT TV has been reduced a lot, but the problem is more LCD TVs degree temperature sensitive , long- uniform screen will display the fragile components to aging , which may or may not burn the TV screen , but it may TV will be more dead pixels. Only bad point is always a white or black pixels, can not be repaired . OLED Display To address this problem, some products specially set up display a still picture for too long, the TV automatically dimming feature to protect the LCD screen

6 Water is a major killer of the LCD screen

LCD TV on the humidity is very clear sense of its more stringent requirements for air humidity , if the humidity is maintained at 30 % to 80 %, and the LCD is working properly , but if the indoor humidity is higher than 80% ( southern region ) , LCD TV internal condensation might have occurred, this condensation phenomenon, may lead to leakage and short circuit LCD TV phenomenon , but also serious and even burned TV .

7 Do not disassemble repair LCD TVs

You can not own repairs to CRT TV , lcd module TV mechanical sophistication , as well as the fragility of the core screen LCD TV on the demolition of unauthorized become a TV that has the potential to cause more harm behavior , even a small metal shavings shedding can cause serious consequences. Meanwhile, LCD TV backlight assembly of some components will be about 1000 volts with a high pressure, this pressure can also cause damage to the human body .

About Digital TV

● What is digital television receiving equipment ?

Digital television receiving equipment is capable of receiving and decoding digital television signals digital system terminal equipment referred to, also known as digital television receivers.Character LCD Modules Existing digital television receiving apparatus has a digital television receiver ( commonly known as set-top boxes ) and digital TV coordinator two kinds.

Digital television receiver apparatus can work as a standalone device , the digital television may not act as a coordinator of the device to work independently , must be used in conjunction with other devices .

● What is digital TV display device ?

Digital TV display device is a digital television video signal for displaying a digital television system terminal equipment referred to, also known as the digital TV display .

Indeed television display device is commonly known as the home of the TV. TV according to the display principle be divided into different types , the type of TV technology is now the mainstream with a cathode ray (CRT) tube televisions , liquid crystal (LCD) televisions , plasma (PDP) TV , an organic light emitting diode (OLED) TV machine and rear projection TV .

Wherein the cathode ray tube televisions and projection televisions are bulky type of TV , and Lcd display modules TV , plasma TV , an organic light-emitting diode TV is a smaller type of TV , also known as flat-panel televisions.

Bright dead pixels LCD TV

Light / dead pixels is also known as an LCD screen bright spots , is a kind of physical damage to the LCD screen , the main part of the screen is bright spots due to internal reflection plate by external pressure or slightly deformed due to heat .

Each pixel on the LCD screen has a red, green , and blue primary colors, mix them together so that the pixel to produce various colors. A 15 -inch TFT Lcd Modules, for example , the LCD screen size 304.1mm × 228.1mm, a resolution of 1024 × 768, each liquid crystal pixel consists of RGB color units. Pour the liquid crystal liquid crystal pixel is formed under the fixed mold "LCD box" , such " crystal box" in the 15-inch liquid crystal display device number is 1024 × 768 × 3 = 235 20,000!

A " crystal box" size is how much ? We can simple calculation : High = 0.297mm, width = 0.297 / 3 = 0.099mm! That is, in the area of ​​304.1mm × 228.1mm arranged under the dense area of ​​only 2.35 million 0.297mm × 0.099mm size "LCD box" , but also in the liquid crystal cell also integrates a single driver behind the liquid crystal cell drive tube . Obviously, this production process on the production line requirements are very high , with current technology and processes, but also can not guarantee that each batch of production out of the LCD screen is not bright / dead pixels ,OLED Display manufacturers generally avoid bright / dead pixels to separate LCD panels put no bright / dead pixels or little bright / dead pixel LCD screen high-priced supply of the strength of the manufacturers , and those bright / dead pixel LCD screen is relatively large number of small manufacturers generally low-cost supply of low-cost liquid crystal display device.

What is the real rear projection TV

Rear (rearprojector) is defined relative to the traditional front projection (frontprojector) purposes . One kind of projection and reflection principle under the guise of the screen and projection system in one of the television imaging system .

In the projection display device, its projection into orthographic projection display (frontprojection) and back projection in two ways. The most direct application is the orthogonal projection projector , the light is projected onto the screen in front of imaging .OLED Display Module The rear projection The principle is simply the projector installed in the bottom of the fuselage , the signal after reflection , projected onto the translucent screen behind imaging .

According to its internal use projector types can be divided into CRT rear projection , DLP rear projection (digitallightprocessor digital light processor ), LCOS rear projection (liquidcrystalonsilicon silicon projection ) , LCD (LCD) projection and so on. As the projector and screen as one, rear-projection TV users do not need the system optical adjustment , lcd module making it easy to use and greatly exceeded the front projector.

Know the LCD panel

Is known , the liquid crystal panel is a liquid crystal display is the most important part. In addition, it is also one of the highest cost component . Although monitor color effect is not only because the quality of the LCD panel and take decisive action . But its display can not be ignored as a key part of consumers on the LCD panel had a strong interest.TFT Lcd Modules Coupled with the current wide variety of LCD panel , the average consumer wants to understand after each choose to buy products is not easy.
Understanding of the display had a friend , and must know the LCD panel on the quality of their display on the monitor display and the display itself has a direct impact on the cost . And as a larger viewing angle , color and grayscale performance better panel , wide viewing angle panel has been a lot of high-end users goal. Wide viewing angle panel appears to solve a color screen for the visual senses and demanding consumer problems.
The current LCD display products, mainly divided into two categories lcm module . They are the traditional TN panel , wide viewing angle (IPS / MVA / PLS) panel . Wide viewing angle panel can be said is the most popular consumer a panel , and TN is in the process of development has long been a successful universal popularity .

The advantage of LED TVs

Compared with the conventional LCD , LED LCD TV has the following advantages :

1 , ultra-thin : the thickness of conventional LCD TVs usually about 10cm , LED backlight mode which is more common on laptops , used in television, so that the body has a thin thickness leap .

2 , green energy : used in traditional LCD TV backlighting - CCLF cold cathode fluorescent lamps contain harmful mercury .Character LCD Display Although manufacturers find ways to reduce the mercury content of fluorescent tubes , but completely mercury fluorescent tube will bring some new technical problems . The LED backlight no mercury, in line with green fashion . Also very energy-saving LED backlight . Internal LED drive voltage is much lower than CCFL, power and security are better than CCFL.

3 , long life: different CCFL 's rated life ( half-light ) in the 8,000 to 100,000 hours. In order to enhance performance by improving the design of the CCFL backlight life will be lower . The LED backlight CCFL can reach about twice . Therefore, LED backlight life is usually longer than the CCFL .

4 , color gamut : in fact HD quality . According to the different light color , LED can be divided into white LED backlight and RGB-LED backlight. White LED technology, the main advantage is low power consumption , and RGB-LED backlight has the advantage of superior color performance . RGB-LED backlight high purity can be issued through red, green , and blue light LED devices , to achieve traditional CCFL light source can not reach a wide color gamut. The current mainstream RGB-LED backlight can already reached 105% of the NTSC color gamut , more powerful LED device performance can be achieved more than 120% of the NTSC color gamut.

For LCD TVs ,128x64 lcd display its unique use of liquid crystal molecules are arranged to control changes in external light imaging principle , the decision is the impact of the LCD panel display key advantages and disadvantages . Therefore, in the purchase of TV, the key indicators is to see whether this product is the choice of high-quality panel, LED afford absolute effect !

About Smart TV Box

The so-called smart TV box , OLED Display refers to as smart phones, equipped with the operating system , and now the mainstream system Android, User can install and uninstall software , games and other applications to achieve " infinite content , unlimited application" of such TV. While traditional TV programs are watched are fixed and can not access the Internet , we can not control their own preferences with the consumer television program , does not have the content and applications can be loaded .
The concept of the rise of smart TV box for smart tablet PC , with the intelligent hot market for smart TV box brings new hope. Although the standard smart TV box has not come out - even their understanding of the concept has not yet unified . According to research , the current smart TV product box market is also hot up . Data show that the market for smart TV box level of awareness also significantly lower than other TV products.
According to IDC estimates , from 2011 to 2015 , China's smart TV box market CAGR of more than 60% ; to 2015 , about 90% of the TV will match the smart TV market capacity will reach 76 million units. But now many families can not immediately buy TV Smart TV market , but also enjoy the smart TV , just add a using Google Android (android) system for smart TV box , you can achieve the smart TV features . Accompanied by a huge market for smart TV , lcd module smart TV box corresponding market has also ushered in an explosive growth.

Daily electrical power small coup

Suddenly, quietly approaching summer , by the impact of summer , many consumers may choose to stay home rather than go out shopping in . At this time watching television , eating cold is really very cool . Here, the projection of the times we must also remind you that summer comes, electricity tariffs may also have increased. Take the flat-panel TVs ,TFT LCD Module  even the standby condition, one day off each will produce electricity.
Some residents convenience in order , do not pull the electrical plug , switch off the appliance only with a remote control , which is home standby phenomenon . This clean-up , the electrical although not running , but in fact there are standby power consumption . It is understood that each household electrical appliances in standby mode, power consumption is generally switched power for about 10% , about 5 - 15-watt range. If a family has a daily average of 56 units electrical plug sticking out , then they will just spend a day of electricity , a month is 30 degrees.
The role of a kilowatt inconsiderable , kilowatt make 25 watt bulb continuously lit 40 hours , allowing ordinary TV open 10 hours. If a power supply range from more than 170 million households meter users , in accordance with saving a kWh of electricity per day , a month is more than 5000 million degrees, almost the equivalent of an ordinary county province one month 's electricity consumption. So, starting from the details may energy saving.
Energy saving is not difficult, the user home appliances when not completely turn off the power ; using multifunctional socket with switch TFT LCD Module, in addition to outside the refrigerator , the front -click multi-outlet is connected to the switch will turn off the appliance can be a good achieve energy savings.

How capacitive touch screen applications handle the noise problem

Touch screen device may in the day by many different noise sources, both internal and external noise noise is also included. Charger and monitor noise is a common problem in today's two most noise sources. As the market becomes more and more devices on the charging light, noise increases, the challenge will only become more difficult to manage. In addition, many other everyday objects will produce noise, causing interference, such as radio signals, AC power and even fluorescent ballasts. In the presence of noise, the low performance capacitive touch system reports position may be distorted, thereby affecting the accuracy and reliability.
Today's touch screen controller uses a variety of methods to improve signal to noise ratio, and filter out the bad from the noise in the data, these methods include on-chip high-voltage transmission signal generation, professional hardware acceleration, high-frequency transmitter, adaptive frequency hopping technology and Saturation control techniques. However, the touch technology continues to sustainable development,lcd module involving aspects include: how to use these features touch controller, how to dynamically adapt to the presence of noise in the system, and how changing environmental conditions and accurate touch tracking.
Injected noise impacts include large jitter (for non-mobile finger touch coordinates reported vary widely), but no finger touching the screen with a finger touch of false positives, do not report when the finger touch finger exist, and may even cause the device is fully lock and so on. If the touch-screen phone, for example, which means you can not unlock the phone (because you can not report a finger manipulation), or due to jitter or false touch while dialing a wrong number (the middle of the night like a friend's phone call, the result was wrong was allocated Boss, this problem is not small). Figure 1 shows the use of the market's best-selling smartphone finger tracking test results obtained (for example, using a finger to draw a circle). As the noise increases, the finger on the panel position reports (as shown in blue) to be wrong, and will detect errors in the panel of the touch (other colors shown).
How to deal with touch screen controller noise, will the quality of the user experience touch UI significant impact. Touch in noisy conditions, poor performance may result in customer dissatisfaction, thereby increasing the amount of return. COG LCD Display Since the difference between the various noise, touch screen controller to be able to detect, differentiate and respond to these noise, especially the two most likely cause of the problem noise sources: charger and display noise.

Concept of multi-touch technology

Multi-touch (MultiTouch) technology means that allow a user to control more than one finger at the same time by the graphical interface of a technology. With multi-touch technology corresponds to a single touch, single-touch device has a lot of years, and the small size of a touch-phones, TFT LCD Displays the most common is the large size of the bank's ATM machine and queuing kiosk.
Multi-touch display devices using advanced computer vision techniques to obtain and identify human finger position on the display screen, and by calculating a finger on the display screen is converted to physical coordinates of the logical coordinate of the computer screen and control instructions. To achieve with your fingers or other natural objects on the display screen of the touch options, open interface, convert images, information and other control functions.
From touch points up points, two points touch (more suitable for a user, and now also put on the market two touch normalized to the ranks of multi-touch), true multi-touch (for multiple users). Up points from the device size, a small size of individual multi-touch device, also has a large size for multi-touch devices people. Usually 20 inches as personal devices and multiplayer equipment demarcation point, apparently too many people use the equipment up is not easy.
A computer should be arithmetic unit, memory, controller, input - output devices. Conventional computer input devices are the keyboard and mouse, the output device is a display,20x4 lcd display and multi-touch computers and traditional computers is that it differs from the input and output are all concentrated to the monitor, you enter the command on the monitor while the computer will The results reflected in the display. In the prior art, the multi-touch technology used in display devices are LCD, rear projection displays. Such as holographic display devices like sci-fi movies and still remain in the scientist's laboratory.

LCD large screen display wall installation

LCD large screen display wall manufacturers in addition to producing products, mostly have a professional construction team. Most manufacturers will have a dedicated installation team, because if it is for contractors to do, and users will have barriers , can not really understand the user's actual needs.
During the installation process , generally the use of environmental special attention. Environmental temperature and humidity and the size of the space before installation is the first note .TFT LCD Displays It is understood , DLP screens are mostly made ​​of resin , so they need a stable environment , temperature and humidity , respectively, at 25 ° and about 65% for the best , the temperature is too high , given the principle of thermal expansion and contraction , the screen easily from the package . The LCD uses a LCD screen, so there is not much impact on its temperature and humidity . And DLP rear projection unit 1.5 m thick box, the installation requires a distance from the wall , but some use of the environment is not good , so the box is not very good heat dissipation ,4.3 TFT display module it is recommended that users install air conditioning , to ensure product life.
In addition, the installation site surface roughness and dust will affect the results.

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.

Factory network video surveillance system design

System Overview
In recent years, the popularity of the network and deepen in our development, enterprise information construction continued to deepen, enterprises are gradually turning to focus on the use of network and computer management, production , sales, lcm module logistics , service and other important stage of large amounts of data . All walks of life have accelerated the construction of information network platform , most companies have been or are laying computers within the enterprise LAN ; Meanwhile, the network has become an emerging advanced applications provide a good platform. In the modern business management, as security requirements increase, the monitoring system plays an increasingly important role , the existing and network systems to be built together with the monitoring system can not only minimizes renovation project cycle , while avoiding duplication of investment funds and improve the network resource utilization.
In the modern enterprise development process , in addition to establishing a comprehensive, scientific and effective management system and incentive mechanism, establish a comprehensive network video surveillance system factory obvious increasingly necessary . Factory plant a larger scale, complex production and management departments , require high safety factor . Among the many workshops, logistics channel , special outdoor areas and functions to achieve on-site monitoring and dispatching a combination of production , will greatly improve the level of intelligent management of the factory . Therefore, in the factory installation of a network video surveillance system has always been essential to many production companies or factories administrative measures. Shenzhen Wave-particle Technology Co., Ltd. graphic lcd display module provides a full range of professional network video surveillance system equipment for plant monitoring system solution designed with rich experience.

With mobile communication technology to achieve remote monitoring of coal mine production safety

Large screen mining safety monitoring system using mobile GPRS network and CMNET ( mainly various fixed bearer network data services ) for networking , the coal mine safety monitoring terminal production information collected sent ( network control center ) GPRS core network , network management center GPRS core network for coal mine safety monitoring in the identification number of proprietary , through CMNET and hosted on a server connected to the mobile network . Access to the Internet at all levels of the monitoring center through its web site can be specified on each coal mine production safety information . lcd module In mine safety monitoring system communication module configured mobile SIM cards , using a dynamic IP address allocation , enabling data transfer monitoring center to reach remote monitoring purposes.
Safety monitoring system is being updated in real time on the big screen with the mine gas , carbon monoxide, wind speed, temperature , vacuum and other safety data information to assist all levels of real-time control of coal mine safety management of coal mine safety production. Alarm occurs regardless of which coal mines , coal mines will quickly fed back to the system causes excessive gas , the need to immediately stop production and how to eliminate the hazard and other relevant information . This information appears in the relevant administrative bodies at the same time , will also be sent via SMS to the relevant responsible person on the phone , until the danger has passed . "The regulatory authorities for safety monitoring center if it is a live coal industry oversight , largely excluded from the hidden mines dangerous job ."
Mine has been fully installed the security monitoring system. "In mine uses GPRS monitoring system, have a better outlook of coal mine safety precautions. Give each of the miners in underground work with on the GPRS positioning system, so not only can keep abreast of the progress of work in the underground miners degree , OLED Display but can also after the miner danger accurately implement the rescue , allowing monitoring system on a pair of equal length ' clairvoyant ' .

The basic technology touchscreen

Absolute coordinate system
The touch screen is an absolute coordinate system , which is characterized by the current position coordinates and the location coordinates of no previous relationship , lcd module each touch data through the calibration is directly converted into screen coordinates . No matter what the circumstances, the touch screen coordinate system on the same point set of the output data is stable . However , it does not guarantee the same point each time the touch samples are the same, that can not guarantee the absolute coordinate position, which is called drift .
Locate
Rely on a variety of touch screen sensors to work , and even some touch screen itself is a set of sensors. Their respective positioning principle and the respective sensors used determines the touch screen response speed,lcm module reliability , stability and longevity .

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 .

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 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.