2013年9月27日星期五

LCD splicing screen installation

As good color LCD splicing screen electronic 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,OLED Display Module  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. DLP mostly made of resin screen, so it is necessary to have 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 use of the DID lcd module splicing screen, so it has little impact on 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, 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.

2013年9月26日星期四

LCD Video Wall Display size, how to choose

In the large-screen display market, the LCD splicing wall display unit by virtue of its slim body of the screen has become a trendsetting new tiled display technology to the LCD screen (LCD) for the splicing unit rapid rise of large-screen system, on the big screen Monitor fields has been widely used, making LCD Video Wall screen gradually attracted much attention. As more and more manufacturers invested in this technology, LCD screen parameters gradually improved, low power consumption, light weight, long life (generally work more than 50,000 hours), with no radiation, the screen brightness uniformity, bright color, etc., and splicing gap is gradually narrowing, gradually reduced from 7.6mm to today's patchwork of bilateral total 5.3mm, prices are declining day by day, the price continues to improve. However, for industrial control, information distribution, video surveillance, entertainment and other fields bars slit LCD Video Wall Display System requirements relative to lower construction costs, it also makes an excellent cost-effective ultra-slim bezel graphic lcd display module Video Wall Display System should be shipped Health. How to choose their own splicing program, but also of great concern to the user, the following example for you to simply explain:
LCD Video Wall Display size selection
5.3mm Ultra Narrow LCD Video Wall Display System is now mainly a 40-inch, 46-inch and 55-inch two specifications. We can according to project requirements, the height and width of the room began to start counting:
For example, a room LCD tiled display wall reserved area is: W 8 .5 m, height 3 .1 m: a first step, with a height of about 1 m minus the bottom support height, 3.1 m-1.1 m = 2.1 m; access down from the display highly selective display size, display size 16:9, 40-inch is generally 910.2mm (W) × 520.8mm (H), 46-inch General 1025.7mm (W) × 579.9mm (H), 55 inch general 1215.3mm (W) × 686.1mm (H).
Then, according to this basic dimensions we calculate the number of layers stacked: 40-inch, 2100 ÷ 520.8 ≈ 4.0, rounded up to 4 layers; 46-inch, 2100 ÷ 579.9 ≈ 3.6, rounded up to three layers; 55-inch, 2100 ÷ 686.1 ≈ 3.0, rounded, the maximum three layers; Next, we want to confirm the display width, 8m 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 3m, that is the reality of the wall width at most 5 .5 m, since you can then calculate the number of monitors arranged, 40-inch, 5500 ÷ 910.2 ≈ 6.0, go to an integer, a maximum of six; 46-inch, 5500 ÷ 1025.7 ≈ 5.4 , rounded up to 5; 55-inch, 5500 ÷ 1215.3 ≈ 4.5, rounded, up to four.
Thus, in theory, splicing out the scale: 40-inch, for up to 4 × 6; 46 inches, the maximum of 3 × 5; 55 inches, a maximum of only reach 2 × 4.
Next, we will choose it. 40 inch to choose the applicable size: 2 × 2,2 × 3,2 × 4,2 × 6,3 × 2,3 × 3,3 × 4,3 × 6,4 × 4,4 × 6; 46 inch can select the following scale: 2 × 2,2 × 3,2 × 4,3 × 2,3 × 3,3 × 4,3 × 5; 55-inch size, then have the following options: 2 × 2,2 × 3,2 × 4,3 × 2,3 × 3,3 × 4.
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 lcm module, no combination of zoom display purposes, the size of its LCD Video Wall can design according to the maximum size.
This example, a more appropriate choice LCD Video Wall is: 3 × 3,55 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 LCD Video Wall gap small number, the overall style is more concise.
Another option is to, on the same plane, select the number of multi-unit LCD Video Wall displays, video surveillance is generally used in a large number of occasions.
More than just a simple case illustrates, the user can according to their own projects, the number of display units such as integrated aspects of requirements and cost themselves a rough calculation, to choose the most suitable for their own projects LCD Video Wall solutions.

2013年9月25日星期三

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 .

did the LCD screen in the traffic control center application solutions

Electronic Police System Command Center is the electronic police system of the brain , while the command center did lcd 128x64 platform is the eyes of the entire electronic police system , the electronic police the whole system plays an irreplaceable role.
Command Center did LCD display platform effect or not, related to the entire electronic police system program success . The platform is able to display clear, accurate and truly reflect the front-end video signal , electronic police system also is an important criterion for good or bad quality .

With LCD technology, now did gradually replacing the traditional LCD DLP mosaic , CRT TV wall , so large-screen rear-projection is a general trend . LCD splicing technology has many advantages : clear display , LCD monitors , stable quality, large screen LCD splicing long working life , after-sales maintenance , low cost, quick and easy installation , simple and easy to control , flexible combination of splicing sizes . For example, specialized in the production of LCD splicing screen , in 2008 ago , CRT monitors throughout the company's market share in the absolute proportion , in recent years , did far more than shipments of LCD screen CRT monitor . With CRT upstream firms adjust product lines , did the LCD screen will dominate the situation .
In recent years, more and more electronic police system command center at the beginning of construction or upgrading , the preferred system for high-definition lcd module screen did the police chain of command as an electronic display device .

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 .

2013年9月24日星期二

Large screen manufacturers brand development is the mainstream

At present , the domestic Ultra Narrow LCD splicing system the main technology manufacturers are concentrated in the hands of foreign countries , resulting in the domestic market is flooded with assembly machines , product homogeneity serious, in this case , how to grasp their brand positioning in order to achieve brand value and have their own advantages to develop marketing channels is the current mainstream big screen manufacturers to develop the direction of development .
Homogeneity in all competitive industry are likely to occur , the lcd module splicing homogeneity within the industry is mainly homogenous liquid crystal panel , but the panel is not equivalent to the homogeneity of the homogeneity of splicing systems , in fact, because the level of technology, manufacturing quality control, differences in levels of production , LCD splicing market products in quality , there are very different , with the upper panel displays superior resources and have long experience in the production of the vendor's products quality and more reliable.
DID Technology technicians Tangxiang En said: "The 46 -inch LCD panel production line investment is huge, requires huge capital investment, research and development costs greater worldwide manufacturers do not have much , but this market in China has been investing overdose ; domestic the strength of the enterprises do not need self-built LCD panel production line, you can deepen their own image processor chip R & D , and Apple phones similar , even if the screen , and many other hardware products are not their own production, but can also make high-quality products . "
Development of market channels to be combined with manufacturers to their own characteristics , the ultimate aim is to achieve win-win complementary vendors and channels together for the vast number of projects and provide customers with better products, more convenient access and more attentive service .
Currently TFT Lcd Modules splicing industry infighting makes good and bad quality of products on the market , many small and medium enterprises in the service can not keep up , the lack of systematic application development and implementation of the solution is poor , allowing customers to choose products face greater risk ; another vicious price competition makes the whole industry is in profit or even negative interest is not conducive to the LCD splicing overall industry 's healthy development. But the fierce market competition will make those who pay attention to brand , technology, products and channels, enterprises gradually grow , liquid crystal display market in the future , those who have a complete industrial chain advantage , continuous technological innovation, overall service ability, the ability to customize client solutions strong manufacturers will be the ultimate winner.
Brand positioning and value realization requires a long time to see results , you can use market segmentation approach to the delineation of the scope of their markets and increase their brand added value. In fact, the large-screen display system now has presented brand development trends, industry threshold is gradually improving , large-screen enterprise wants to become bigger and stronger , and in the fierce competition, brand development is the only one can go road.

2013年9月22日星期日

Large-screen LCD splicing system Digital Natural Image engine


Digital Natural Image Engine
With a positive development and many years of experience , finally got to create vivid images of fine detail and high contrast natural influence proprietary technology, which has the following features:
3D dynamic optimization to eliminate noise
3D dynamic optimization is the role of quality improvement and noise reduction . Whether it is dynamic or static images , 320x240 lcd module can ensure crisp, clear picture .
Show the natural hue color optimization
For each frame and scene , color optimization functions are calculated separately the red, green, and blue saturation and determine its brightness standards, the overall brightness of the screen to be preserved , the screen showing a realistic and natural picture.
Strengthen the chiaroscuro contrast enhancement
DNleTM technical solution to a common technology in enhancing the contrast of interference signals and flashing also magnified the problem , which the contrast is divided into one million standard, low temperature lcd any signal can automatically match the most suitable contrast.
Details of the performance enhancements to eliminate jagged edges
DNleTM can automatically analyze and selectively enhanced need to enhance the details , and can effectively eliminate the slight noise that may affect the quality and interference , showing the picture vivid and lifelike.

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

What is a LED display

LED technology - What is LED display ?
LED display (LED panel): LED is a light emitting diode, light emitting diodes English abbreviations, acronyms LED. It is a means of controlling the semiconductor light-emitting diode display is used to display text, graphics , images, animations, quotes , video, video signals and other information display screen .
LED display into the graphic display and video display,128x64 oled LED matrix blocks. Graphic displays can be synchronized with the computer display Chinese characters , English text and graphics ; video display using micro-computer control, graphics , images, and Mao, in real-time , synchronous , clear information dissemination play a variety of information , but also shows two dimensional , three-dimensional animation, video, TV, lcd module VCD programs, and live . LED screen display colorful , three-dimensional sense of strong, static, such as painting, moving, such as film, widely used in railway stations, docks, airports , shopping malls, hospitals, hotels , banks, securities markets , construction market, auction houses, industrial business management and other public places.
Its advantages : high brightness, low voltage, low power consumption , miniaturization, easy to match with the integrated circuit , driving a simple , long life , impact resistance , stable performance.

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 .

2013年9月14日星期六

On the LCD screen splicing brief aging and maintenance

With the rapid development of information technology , information technology to further accelerate the process of building , large screen display device applications in all walks of life rapidly growing popularity , while LCD Video Wall technology after years of development , will present the most remarkable high- resolution, high brightness and high color gamut of LCD technology, embedded hardware splicing technology , multi-screen image processing technology, signal switching technology into one , forming a high-brightness , high-resolution, low-power, high life expectancy, advanced liquid crystal mosaic wall display systems, safety monitoring , transportation hubs command, public information display , multimedia video conferencing , etc. advantages prominent, high-profile , applications are increasingly widespread .
With the market works using the LCD splicing screen growing in different environments occasions wide range of applications , the LCD splicing screen maintenance has become a new problem. Some users of the improper use of the LCD splicing screen , but also directly affect the life and performance . According to statistics, in 2011 the full year due to improper maintenance screen LCD splicing screen damage caused by splicing the number is rising . As many contractors lack expertise , and today the big screen lcm module splicing screen display network will maintain the experience to others , only for your reference.
LCD screen in a row under prolonged use , will accelerate the aging , or even burned, they are able to let it rest for a while intermittent , or frequently change the screen contents appear , or in screen saver mode operation for a while, so LCD screen will help retard aging.
In the steam temperature is too low ( less than 30 degrees below zero ) , you should stop using it. The LCD screen is a valuable electronic products, and internal high risk , prohibiting non-professionals to manipulate . Very sensitive to water , the South rainy wet weather , easy to damage the internal components screen , so regular run , or you can put a package inside screen moisture agent .
LCD screen surface is a glass, to avoid the occurrence of a hardware crash , you can not put pressure on the surface of the 5.7 TFT display module screen , if you find the LCD splicing screen surface dirt , accurate method should be used to remove dirt . Clean the economy can not be injected directly into the glass surface of the display screen , the LCD screen so that it is possible to flow inside the guide short-circuit faults.
LCD splicing has been favored by most people , splicing convenient , space-saving and other advantages have been recognized by the majority of users , therefore , we must not only understand the LCD splicing , but also to have added to its care and maintenance should be in place for it to bloom brilliance.

New Concept liquid crystal display technology

Existing backlit LCD technology can not completely blocked , leading to not display all black , hindering the improvement of contrast . In the use of light , the liquid crystal polarizer behind 50 percent of the light will be blocked , and then the color filter will block 30% , leading to the final utilization of less than 10% .
According to Microsoft and Washington State University scientists recently published in the journal Nature papers, new technology allows lcd graphic display true black and greatly increase the contrast ; while the backlight utilization increased four -fold , to make the display brighter. In addition, the technique can use the existing LCD production line manufacturing , the cost is not too high.
Specifically, the technology called "telescopic pixel" stretching of pixels, each pixel by the sides of the main structure composed of a small mirror . Was similar to the shape of the primary mirror of annular discs , diameter of 50 microns , the intermediate pore size of 20 microns . And a second small mirrors are located just behind the orifice diameter of 25 microns. The mirrors in opposite directions , light reflected by the primary mirror , the secondary mirror illumination , imaging revealed through the hole . When in the closed state, the primary mirror is flat , the light irradiation on the secondary mirror can not , will not have any light revealed that to achieve full black. To display a color which , in the main mirror electric charge applied , bent bowl , focus on the secondary imaging lens through hole .
Allegedly, this technology not only completely solve the problem of a full black display , and light utilization rate reached 36 percent , much higher than today's LCD 9% efficiency. Power on the primary mirror deformation time is very short response times can be achieved 1.5ms.
Although in the current era of high definition , in a panel installed on millions of small mirrors looks very weird. But research people still said that this principle display panel can not only achieve high resolution, and the use of raw materials are very inexpensive , and can be in the current lcd module production process through the transformation of mass production.

2013年9月12日星期四

LCD large screen display wall technology features

LCD large screen display wall advantages: ultra-thin thickness , no radiation , no flicker , and quickly became a hot display market , the big screen market occupied a considerable market share. By introducing large-screen LCD display wall itself, technical characteristics and analysis of large-screen LCD splicing technology and cost in recent breakthroughs in the hope that the majority of users on the LCD large screen display wall have a certain understanding , in the purchase of large-screen LCD when the wall close to the demand for cost reduction .
LCD large screen display wall imaging modality determines that it includes: a complete right angle , there is no so-called CRT monitors geometric distortion , no CRT monitor electron gun structure of the complex , you can do a small volume , power consumption is very low, zero radiation and not blinking . These advantages make the LCD in the fastest time gained popularity, and these advantages are all areas of expertise on the user wants to use , but in some technical indicators , LCD monitors worse than CRT monitors , such as response time, richness of color , these shortcomings but also makes professional users between the LCD and CRT display is difficult to make a choice. Here we wish to place the LCD monitor in several key performance indicators on the display compared with CRT monitors to see what makes the difference in the end professional users the choice of the LCD display produces hesitation.

LCD large screen display wall : Response time
For this indicator , can be understood as the reaction speed of the input image signal . Is the same point in the panel above , from black to white and white to black from the sum of the time . If the index is too long , then quickly switch the image or video playback will produce "smear " phenomenon, affecting. For CRT monitors , the response time is generally about 1ms , while for LCD monitors in terms of early LCD is about 80ms response time is too long is the LCD using the most headaches . However, this problem has been basically solved , and now the latest LCD response time of 25ms or so, although there is a certain gap compared with the CRT , when watching a DVD , you need to display 33 pictures per second , that the response time of less than 30ms to (30ms = 1000/33). As for the play action game is concerned, such as demanding QUAKEIII, if you want to do completely without "smear " , the screen should display speed 60 frames per second or more, that the response time of less than 16.6ms to (16.6ms = 1000 / 60 ) . Currently on the market line display manufacturers LG, BenQ and Samsung have launched a response time of 16ms LCD display products , but for most of the major applications for the Internet, office , data processing and image data for users who appreciate , 25ms response time of the LCD products have been fully able to meet their needs. Therefore, the major display manufacturers are also providing support to users 16ms response time LCD products and support 25ms response time LCD products .
LCD large screen display wall : number of colors
Number of colors , refers to the monitor can display the number of colors , the higher the index , the picture is more abundant . In addition to the response time outside , another effect professional users to buy the LCD monitor is probably an important reason for the number of colors ,lcd module and now basically CRT monitor can display 32-bit color , that 232 kinds of colors, 4294967296 . Early , LCD can only achieve 16-bit color , approximately sixty-five thousand kinds , while recent period , with advances in technology have LCD can display up to about 24 -bit color , about sixteen million kinds . If just from the indicators , LCD is still some distance away from the CRT , but actually speaking, sixteen million kinds of color can also meet the needs of most applications .
In the enhanced color performance technology research and development , LG's Kofi technology (ColoriFic) unique, Kofi technology (ColoriFic) by adjusting the applied voltage interval for the color change is more consistent and separation of the signal transmission , the signal enters the liquid crystal after the display , continuing with the process, the horizontal signal and the vertical signal are clearly separated to form a double signal channel .
After being separated processed signal is transmitted to the liquid crystal panel is more accurate color purity and clarity so effectively improved. In addition, Kofi technology (ColoriFic) built a variety of colors ,color lcd display module brightness, contrast and sharpness of the display modes , such as combinations of Office, Internet , movies , etc., for the user to easily select , and also supports a variety of printing devices WYSIWYG true color 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 .

2013年9月10日星期二

LCD is also different

The moment of the LCD screen body mainly uses TFT (ThinFilmTransistor) technology as the underlying drive technology to achieve high-speed, high brightness, high contrast, color reproduction, wide viewing angle display, while in display technology , there are now often used in TN screen , IPS screen , CPA screen , PVA and MVA panel screen, which is used widely TN screen is also the cheapest , the disadvantage is small and pseudo-color viewing angle , which have a modified version of the TN + film panel . The main difference between these screen contrast , viewing angle , color performance and speed of response show detail , it should be said that their own merits. Which IPS ( hard screen ) , with better overall display, with high viewing angle , fast response , accurate color reproduction , etc., more serious drawback is leaked , black pure enough .
A variety of display technologies against each other at the same time , "LED LCD screen" is intentionally or unintentionally vague concept , and as a selling point to the market . In fact, LED is the acronym for Light Emitting Diode LightEmittingDiode , which itself can be luminous and colored , can be applied directly as a display unit , has a good price , and now the vast majority of all outdoor advertising screen with LED screen, but because of the direct use of LED as the display unit pixel is too large and can not be done at close range high-definition display , it can not be applied in the security industry . Back to recent hot LED LCD screen , which displays as a principle or through the liquid crystal light valve control pass , but different from the traditional CCFL (cold cathode fluorescent lamp ) , which uses LED as backlight LCD screen . Because the LED backlight can be done uniformly distributed and therefore able to achieve a good local dimming , and its wider color gamut backlight , the relative CCFL light source, which has a longer life, low light decay , energy saving and environmental protection, and effectively eliminate the black edges and other visible advantages , but also to some extent reduces the distance patchwork .
It should be noted that, although the mosaic screen of the display depend on the quality of the liquid crystal panel, a single screen , but the choice of video solutions mosaic screen (DSP) will directly affect the merits of the input video image decode the picture quality.

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.

2013年9月9日星期一

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.