What is DID? The application of high-definition video capture in DID splicing technology What is DID?

DID is an abbreviation of Digital Information Display. Is a new generation of liquid crystal display technology introduced, widely used in all walks of life (hydropower production scheduling, military command, urban management, mining safety, environmental monitoring, fire and weather meteorological and other command systems.) security monitoring, (government enterprise video conference, Information disclosure of financial securities, airport subway shopping mall hotel news, etc., display systems in the display system of the theater sports fair and concert media, etc., and commercial rental of display equipment. As its unique display technology is different from the ordinary liquid crystal display is to improve the arrangement of liquid crystal molecules can be placed horizontally vertical ceiling. High brightness, high definition (1080P), long life, stable operation, low maintenance cost. The DID LCD screen provides customers with an ultra-high resolution, large display area LCD screen in single-screen high resolution (1366X768, 1920 X1080), full screen (1366xMx768xN, 1920xMx1080xN). Samsung DID LCD screens are now available in 32”, 40”, 46”, 52”, 57”, 70”, 82” sizes.

Second, DID LCD screen features:

1, high brightness compared with TV and PC LCD screen, DID LCD screen has a higher brightness. The brightness of a TV or PC LCD screen is generally only 250 to 300 cd/m2, and the brightness of a DID LCD screen can reach 700 cd/m2 or more.

2. The high-contrast DID LCD screen has 1200:1, and even 10,000:1 contrast, which is more than double the conventional PC or TV LCD screen, and is three times that of the general rear projection.

3, better color saturation At present, the color saturation of ordinary CRT is only about 50%, and DID LCD can reach 80% -92% of high color saturation, thanks to the color calibration technology developed for DID products, Through this technology, in addition to color calibration of still images, it is also possible to calibrate the color of dynamic images so as to ensure the accuracy and stability of the output of the images.

4, wider viewing angle PVA (Patterned Vertical Alignment) technology that "image vertical adjustment technology", using this technology, the viewing angle of up to double 180 ° (horizontal and vertical).

5, better reliability Ordinary LCD screen for the TV, PC monitor design, does not support continuous use day and night, DID LCD screen for the monitoring center, display center design, support for continuous use in 7x24 hours.

6. The pure flat display LCD is a representative of the flat panel display device. It is a true flat screen display with no large curvature and no distortion.

7, ultra-thin narrow side design DID products have a large display area at the same time, there are thin, light weight and other advantages, you can easily splicing, installation. Splicing dedicated LCD screen, its excellent narrow-edge design, so that the monolithic edge is even less than 1 cm, such a small edge effect will not affect the overall display of the entire display.

8, the brightness is even, the image does not flicker steady Because every point of LCD receives the signal after it has received that kind of color and brightness, but unlike the CRT needs to constantly refresh the pixel. Therefore, the LCD has uniform brightness, high image quality, and absolutely no flicker.

9, 120HZ double frequency refresh frequency DID product's 120Hz double frequency liquid crystal display technology, can effectively solve the image in the process of rapid movement of the smear and blur, enhance the image clarity and contrast, so that the picture is more clear, long-term viewing of the human eye Not fatigued.

10. Longer service life The LCD backlighting screens used by ordinary NB, PC and TVs have 10,000 to 30,000 hours of backlight life, and the lifetime of backlights for DID LCD screens can reach 5-10 million hours. Above, this ensures the consistency of brightness, contrast, and chromaticity of each LCD panel used in the splicing display screen after prolonged use, and ensures that the life span of the display screen is not less than 50,000 hours.

Third, DID liquid crystal display system composition structure DID liquid crystal display system is composed of three major parts, namely the splicing display wall, multi-screen splicing processor and signal source. Among them, the multi-screen splicing processor is the core of the key technology, and supports the display of images of different pixels on a large-screen display wall and any window opening on the large-screen display wall, zooming in and out of the window, and cross-screen roaming display.

The key part of the multi-screen processor is multi-screen splicing capability and high-definition video capture capabilities, high-definition video capture part, mainly by high-definition video capture card, high-definition DVI capture card, high-definition VGA capture card, HDMI HD capture card high-definition video capture The HDCAP1.0 high-definition video capture card provided by Weiss Technology addresses the large-screen acquisition requirements.

Fourth, the application of DID LCD splicing display system Large-screen splicing picture is grand, visual impact is strong, with good display, presentation, advertising, publicity effect. And it is easy to install, free from space limitations, and is widely used in applications such as: power production dispatch control center, military command and control center, urban management emergency command center, traffic management command center, industrial process control display system, broadcast television display and monitoring system, Shopping malls, hotels, communication information display systems, financial and securities information display systems, government enterprise multimedia video conference display systems, mining safety production monitoring systems, urban environment monitoring command systems, fire prevention, weather, maritime flood prevention command systems, airport, subway flight display, Baggage, security monitoring system, theater, media advertising, exhibition display system, brand store image display system, concert, display equipment rental...

WesTech provides a variety of streaming media HD video capture cards that can capture high-definition standards such as VGA, HDMI, and components. Provide users with a variety of experiences. The application of high-definition video capture cards has become more and more widespread. It has been widely used in industries such as industry, agriculture, national defense, transportation, medical care, finance, and even sports and entertainment. It can be said that it has penetrated into every aspect of our life, production, and work.