LCD TFT LCD screen of the display principle and characteristics of DID screen

The principle and structure of liquid crystal displayLiquid crystal ( Liquid Crystal ) liquid crystal, is a both a liquid ( flow ) and as a crystal (with the optical properties of crystal material ). The alignment of liquid crystal molecules have a certain order, in the external electric field the alignment of liquid crystal molecules will change, thus affecting its optical properties.LCD screen ( Liquid Crystal Display, referred to as LCD ) is composed of two parallel thin glass plates, the distance between the two glass plate is very small, padding is divided into small units of liquid crystal. Liquid crystal panel itself is not luminous, it through the LCD screen backlight LCD screen light up the. The LCD screen has the advantage of small volume, light weight, large display area, the tableau is stable, no radiation, low energy consumption and environmental protection features. Compared with CRT display, liquid crystal display power consumption of only 1 of CRT / 3, a thickness of only 1 / 8, weighing less than 1 / 3, space saving more than 60%.TFT liquid crystal screen ( Thin-Film Transistor ), thin film transistor of the English abbreviation, is currently the top material LCD screen, which belongs to the active matrix type LCD screen, the back is equipped with a special lamp, can be" active" on the screen every independent pixel control, this is what we often say that the active matrix TFT, its reaction rate comparison of fast, visual angle, high color saturation. Because TFT LCD screen pattern memory, so in the current disappears not immediately restored, to effectively improve the ability to play a dynamic picture.What is DID TFT LCDDID ( Digital Intelligence Display ) TFT LCD is a special LCD screen. It is based on the applied in security, radio and television, medical, industrial and public media field monitor technical requirements and design and production, it is afterwards NB, PC and TV after the fourth generation of LCD products. Its excellent display performance, has been recognized as the most high-end, the most ideal LCD monitor screen.DID TFT LCD featureIn 1, high brightnessWith TV and PC compared to DID LCD screen, LCD screen with high brightness. TV or PC LCD screen brightness is generally only 250? 300cd / m2 ( 20.1" ), and DID LCD screen brightness can reach 300 ~ 500 CD / m2 ( 20.1" ).In 2, high contrastDID LCD screen with 1000: 1 ( 20.1" ) contrast, than the traditional PC or TV liquid crystal screen to be twice as high, is a general projection three times.3, better color saturationThe common LCD and CRT color saturation is only 72%, while DID LCD can reach 92% of the high color saturation, this benefit for DID products specializing in the development of color calibration technology, through this technology, in addition to the still picture color calibration, but also on the dynamic picture color calibration, so as to ensure the picture output precision and stability.4, wider perspectivePVA ( Patterned Vertical Alignment ) technique known as" image vertical adjustment technology", the use of this technique, the visual angle of up to 170 degrees ( horizontal and vertical ).5, better reliabilityOrdinary LCD TV, PC display design, do not support the 24 hours of continuous use, and DID LCD screen as a monitor, advertising design, support and continuous use in public.In 6, the pure flat displayLCD is a flat panel display device representative, is the real flat screen monitors, no distortion.In 7, slim narrow designDID products in large display area at the same time, and the thickness of thin, light weight and other advantages, can be conveniently spliced, installation. 40" LCD screen splicing, its excellent narrow design, make its monolithic edge is less than 1.2 cm in diameter, so the edge effect will not affect the overall display wall.8, uniform brightness, steady image without blinkingBecause LCD each point in after receiving a signal to keep the color and brightness, but unlike CRT need to constantly refresh window. Therefore, LCD brightness uniformity, high picture quality, and does not flicker.In 9, 120HZ refresh frequency doublerDID product of 120Hz frequency doubling crystal display technology, can effectively solve the problem of image motion in the process of tailing and fuzzy, image sharpness and contrast, make the picture more clear, long time to watch the human eye is not easy to fatigue.10, longer service lifeCommon NB, PC and TV use LCD LCD back light source of the life of 10000 to 30000 hours, while the DID LCD LCD screen backlight source service life can reach 50000 hours, this ensures that the curtain wall using each piece of the LCD screen after use in a long time the brightness, contrast and color consistency and ensure that the walls of the useful life of not less than 50000 hours.