2013年5月27日星期一

Disadvantages of Character LCD Modules TV inventory


1, the reaction rate is displayed on the monitor as the traditional technical advantages, the reaction rate is very good. TFT LCD display characteristics due, not how optimistic (low temperature does not work, and there is reaction time). LCD response time is relatively long, so the moving image's performance is not satisfactory.TFT LCD Module
2, the display quality: the traditional display of the display screen with the phosphor, by electron beam against the phosphor and the display, which shows the brightness of the light transmittance ratio of the liquid crystal display (in fluorescent lamp as the light source) is brighter. In theory only when the LCD display 18 colors (approximately 262,144 colors), but the CRT color depth is almost infinite.
3, LCD viewing angle relative to CRT monitor is relatively small.
4, LCD display relatively fragile and vulnerable to damage. This improves the use and maintenance of LCD TVs difficulty.
5, since the liquid crystal is a range of solid and liquid, with the regular arrangement of organic molecules. At different current electric field, the liquid crystal molecules are arranged rotated 90 degrees to make the rules, resulting in differences in light transmission, so the power ON / OFF difference arising under shade, so the principle control each pixel, can form the desired image . LCD TV is made use of this principle. But precisely because of this principle, all LCD TVs in the process is difficult to expand, and the price is expensive.
6, the current LCD manufacturing process determines the presence of point defects, its manufacturing yield is relatively low, which to some extent increase the LCD manufacturing costs. So the price is the biggest obstacle to the promotion of LCD troubled, sometimes a good 17 "LCD asking price will be more than 20,000 yuan, which is a CRT, but a superb 21" flat monitor prices. Most domestic and foreign TV makers believe that: the next few years, the more popular high-definition TVs and rear projection TV will gradually be replaced by LCD TVs. In the technical content, LCD TVs have adopted the basic progressive scan, 4H digital comb filter, DVD component terminals, more than 16.7 million kinds of color phenomena. Currently, both domestic and international not have a complete specification for Low Temperature Display products, which also resulted in LCD products currently on the market there is no uniform standard problems, allowing users to select LCD products prone to doubt, and even misled .

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