True green LED TV

LED backlighting and edge light is an important factor in the rise of the implementation of the EU RoHS Directive . The Directive stipulates that from 1 July 2006 onwards, the EU member states to eliminate sales of electronic devices in the lead, cadmium, mercury , OLED Module hexavalent chromium , polybrominated biphenyls and polybrominated diphenyl ethers and other substances. And Mercury is CCFL lamps and other types of fluorescent lighting the main ingredients. LED lights then do not use mercury.
In power consumption , compared with the ordinary CRT TV , flat panel TV power consumption considerably , many consumers of the energy situation on TV are quite concerned . It is understood that in 2008 sales of 12 million flat-screen TV , such as by working four hours a day every TV , lcd module every year on the need to consume 2.4 billion kWh of electricity , the equivalent of several large sum of annual generation capacity of thermal power plants .
The LED brightness can be carried out with the initiative to adjust the screen brightness , energy efficient compared to LCD TVs can reach more than 30% . This performance in some dark scenes images , only need to adjust the backlighting of the necessary area ( on the screen showed black or dark part ) local lighting , which can to show you a chiaroscuro effect of natural high-quality images .

Large-screen LCD splicing Security Industry Solutions

With the large screen display applications more widely, but for different areas of the terminal display device requirements are different , resulting in industry- differentiated demand for more and more significant . So, faced with different industries to provide targeted solutions is becoming more important , professional sound solutions for the industry has naturally become a major competitive market between manufacturers one of the factors .
For LCD splicing products,TFT LCD Display by virtue of its high-definition display, flexible mosaic pattern , thin body , long life and energy-saving environmental protection and many other advantages , the relatively high requirements for patchwork of small fields monitoring collar favored. SME 's command and control the contents of the main display video signal based, for the integrity of the screen is not very high , more is to consider how to use the LCD splicing alternative to upgrade the old-fashioned CRT display device , as a relatively cost-effective LCD splicing high, so the LCD splicing in the field of security applications are more and more attention .
For the application of the security industry large-screen, displays the contents of the security industry due mainly to monitor the main screen , monitor screen is relatively independent , so the picture is not roaming and superimposed strong demand , of course, some of these more complex security monitoring block is indispensable . In general, small and medium sized project is no need to configure the splice . On the other hand ,COG LCD Display a relatively large screen of the security industry , and often have been encoded preceding signal into a digital signal, if the big screen on even before then decoded into an analog signal , which will reduce the display , will increase the cost of equipment . For the application of the security industry big -screen feature , manufacturers have to set its own brand of proven solutions , it can well meet the needs of customers the security field .
With LCD splicing technology continues to mature and the costs continue to decline , LCD splicing positioning become more " people" , and LCD splicing system incorporates more networks, smart technology, continuously expand the field of application , the future market prospects are very broad .

Large-screen LCD splicing debugging method correctly interpret

LCD splicing both individually as a monitor , they can assemble into large screen use . According to different needs and achieve big variable is also variable small Variety large screen features: a single split -screen display , single-screen alone, any combination of display , full-screen LCD stitching, double stitching LCD splicing screen , vertical screen display, image borders optional compensation or cover , support for digital signal roaming, zooming stretching, cross-screen display , a variety of plans to set up and run display , full HD signal real-time processing . LCD splicing is a complete finished product, ie, hang with , installation is as simple as building blocks , single or multiple LCD splicing are very simple to use and install . lcd module stitching around the edges only 9mm width , surface protective layer also with tempered glass , built-in smart temperature alarm circuit and the unique " fast casual" cooling system. Everything, not only adapt to the digital signal input , the analog signal support is also very unique . LCD splicing series of products using the world's most unique and cutting-edge digital processing technology, allowing users to truly experience the full HD screen effect .
So, so perfect large screen display system really that simple? Answer is no, how to properly debug LCD splicing screen is not as easy as people think .
Normally, LCD splicing system hardware installation does not have a lot of time is also relatively simple , and debugging more complex compared to the latter . Video wall system debugger, the image appears unclear. If the display is not satisfactory , especially in low light , blurred edges of the image (the source resolution is too high) stack aliasing interference fringe image sense ( or drop-frame ) , the result is: a liquid crystal mosaic image does not contain a clear phenomenon. Immediately to determine whether the product is not available. Image, control products, such as system , matrix switchers , splitters, signal transmission cable , transmission, processing and display display terminal , DVD, video cameras, computers , etc., etc. Displayed video source.
Exclude the need to pay attention to two points:
The first : to check the first question bear certain period of time , checks will be deleted once the issue is resolved , you can save time in other parts of the checks can be . First of all, one by one, the only way to form a terminal display resolution and signal source display resolution, not only for point to point , and if this problem is not solved, are excluded from all devices on it to verify the video signal , graphic lcd modules If you want to reach the end dependent on the adaptation or the display format can be greatly improved the brightness of the image , or replace the device's display terminal zoom you can increase conversion device such as the use of that change the nature of the signal , the video signal can be improved VGA video signal .
Second, please see the body to make the losses to a minimum standard distance range image and signal source impedance bandwidth between the matrix switcher. Finally, the focus and convergence of the display device is normal , the signal processing circuit is good. The most important are as follows. High ground , reliable, good line of construction , so that the signal ground , solid interface cables neatly separated , and the force and strict as power, signal lines, such as UPS, AC power connectors at both ends of the total number of tags and manage a simple test .
Analysis: according to the symptoms , if not synchronized , synchronous interface cable, and transmission equipment , control and display terminal synchronizing signal source frequency range of the inspection point. By analyzing the test time is too long, the picture is too small , ghost , transmission cables , to confirm whether it is a solution to increase the signal amplifier and other equipment, or lane changes . Concentrated bad, you can adjust the display terminal.

LCD large screen display wall of the viewing angle

LCD large screen and large-screen CRT display wall , there is still a shortcoming, which is tilted at an angle if the user will not see the image on the screen . For this early use of laptop users must have some experience, using a laptop computer , front screen image is the most clear , if angle is tilted to a certain angle will see the screen image . Up to what point can see the screen images , this angle is the viewing angle. Viewing angle can be divided into horizontal viewing angle and vertical viewing angle . For this shortcoming , LCD manufacturers have made ​​the development of a great effort , and now the LCD viewing angle can reach 140 degrees , in fact, no one actually so inclined angle to see the screen . For professional users, always facing the screen majority.
As for the resolution, brightness , contrast, in terms of these indicators , LCD monitors and CRT monitors basically the same. If the lcd module on the technical indicators perfectly acceptable , and that the only consideration is the price , just a year ago , big screen LCD 's price is unacceptable , the hundreds of million, and now with the LCD mass production , cost reduction , LCD has come to a reasonable price , and with 17 -inch LCD monitor , it is now the price is about 4500 yuan or so, here we should not ignore a problem, that is the same as LCD monitors unlike CRT monitors there is an effective display area , said 17-inch LCD monitor effective display area is 17 inches, which is 19-inch CRT monitor with an effective display area is basically the same . Now 19 inch CRT market price of about 3,000 yuan, the gap between 1,500 yuan, 1,500 yuan in exchange for which zero radiation , screen flicker , takes a long time glued to the screen for the graphics / video design, publishing and other professional field in terms of users is how to enjoy it !
LCD large screen display wall in recent years gradually into people's lives and work of the new display carrier. Due to its stylish, low radiation , energy-saving , space-saving , splicing gap is small, image stabilization, clearly , by the majority of users. With the market launch , the decline in prices , so that more users have the opportunity to use this product. Therefore, using OLED Module wall units , all walks of life began to be promoted and applied . Now has become a large-scale exhibitions , public places, video conferencing, multi-purpose hall , television , entertainment, television monitors and other places essential to the display device.

Soft edge fusion splicing system

Soft edge fusion splicing system is a complex system engineering , usually form a complete set of soft edge fusion splicing system requires the following equipment:
1 screen : the screen to the audience the most intuitive visual impact, screen selection is essential. First make sure the entire screen is seamless , we can ensure picture perfect display .
2 Projector: projector screen to the big screen directly affects the quality of the display, is also very important , so careless . low temperature 128x64 lcd Maximize the use of 3-DMD projector technology to ensure a good color reproduction . End 3-LCD projector can be used, but in the color consistency adjustment above comparison takes a lot of time .
3 Soft Edge fusion splicing processor : soft edge fusion splicing processor determines a large screen display main content and speed of the processor is good or bad , the signal processing speed of the source , the picture resolution , the quality of soft edge fusion , have a role can not be underestimated .
4 Signal processing apparatus :Character LCD Modules  a signal processing device includes a signal source type of conversion, the signal switching , signal amplification and transmission , for large -screen display is very important.
5 . Centralized control equipment : large-screen display system, a wide variety of equipment , number of projectors , matrix number larger than the number of signal sources , centralized control device can better help you quickly deal with the switching signal selection , convenience efficient operation of the control device , the rapid increase in work efficiency and accuracy.
6 Peripherals : Peripheral devices include signal source desktop access systems , cables , connectors , cabinets, power supply and so on.

TFT-LCDCELL process diagrams

TFT-LCDCell manufacturing process of the array after the process, which is based on the Array front glass substrate, a glass substrate and color filter combined and inserted between the two glass substrates a liquid crystal (LC). Main processes include: cleaning, orientation film coated PI layer, friction orientation, printed plastic frame and pad printing Silver Point spray powder, assembly, cutting & lobes, filling liquid crystal detection.

First, the substrate using the lotion, brush, Character LCD Module ultrasound, IR, UV and other devices, the above remove particulates and oil, in order to ensure the cleanliness of the substrate condition.

That has formed on the substrate layer washed 500Ao ~ 1200Ao (0.05μm ~ 0.12μm) PI films uniform. By rubbing the alignment grooves on the PI film manufacturing orientation of the liquid crystal sequentially ordered.

After using the screen printing method, will be required to transfer to the CF frame plastic substrate to provide CF / ITO substrate is then necessary to make the Edge with plastic box. The agent is spread evenly spaced on the substrate for maintaining uniform spacing between the upper and lower substrates.

In stage heating, prompting the box on the CF substrate plastic softening of position after completion of the bit to impose pressure, plastic box by the CF and the ITO substrate adhesion, and finally do the right position fix, complete assembly work. The substrate assembly complete stack neatly sealed with the fixture, to impose a uniform pressure, 320x240 lcd display and into sealed with high temperature baking furnace, the substrate temperature can be maintained 150 ℃, 90 minutes or more to ensure that the sealant is fully cured spaced molding.

The completion of the assembly sealed with glass panels, according to the size of the necessary requirements to breed diamond knife, cut out the cut marks on the glass cutting / lobes.

Panel into the empty vacuum tank, exhaust after impregnation liquid crystal injection port, nitrogen breaking vacuum, using a pressure difference and the capillarity effect, so that the liquid crystal injected into an empty panel.

Attached to the elliptical polarizer on the panel below. Create contrast with its polarizing and phase difference plate compensation chromogenic make the picture clear.

Three-dimensional image display applications

Currently three-dimensional image display is mainly used in the workstation (workstation), comics, cartoons and other animation, medical purposes, educational purposes as well as aviation, automotive simulation teaching, game console and other fields. Such as medical uses stereoscopic endoscopy, stereoscopic microscopes, the use of surgical guidance system, the use of CT, MRI medical diagnosis, visual function tests, Character LCD Modules medical education, medical training and so on.

Although the new generation of three dimensional stereoscopic display resolve many shortcomings, and dramatically increase the viewing stereoscopic range, but it also faces inadequate consumer awareness, expensive, single use only face challenges such as practical. For single use issues, the current plan has drawn more toward the direction of exploring, developing multi-user stereoscopic display,Serial Lcd Display Module in addition to production of precision, mass production and ripple control is one of the items to be overcome. Three-dimensional images expected future market will be with the software and hardware technology continues to expand, which means keep abreast of the pulse of the market, the timely provision of related technologies become more important.