TN(TwistedNematic) panel is mainly developed from liquid crystal display and belongs to low-end panel. Do not have the ability to display 16.7M color, that is, the 6bit pseudo-color panel in the usual sense, rather than the 8bit true color panel, and the viewing angle of TN panel is usually within160.
VA(VerticalAlignment) panel is widely used at present, which can be divided into two types, one is MVA (multi-domain vertical arrangement) led by Fujitsu, and the other is PVA(PatternedVerticalAlignment) introduced by Samsung. The biggest feature of this panel is the true color and wide viewing angle of 16.7M, which is more suitable for LCD TV for home entertainment.
IPS(In-PlaneSwitching) panel was introduced by Hitachi on 200 1. Technically, the viewing angle is improved by liquid crystal molecular plane switching. Because there is no compensation film on the upper panel, the screen is more transparent and the color is more delicate. However, slow response time and difficulty in improving contrast are big problems that restrict the popularization of this type of panel, while the second generation IPS panel,
In other words, the S-IPS panel introduces new technology to improve the gray inversion phenomenon at some specific angles. At present, in addition to the use of this type of panel by ipsAlpha, a joint venture between Hitachi, Mitsubishi and Panasonic, LG- Philips actually features IPS technology. In addition, the ASV(AdvancedSuper-V) panel independently developed and manufactured by Sharp and the ExtraView panel unique to NEC,
These two panels are unique technical products of the two companies. In fact, ASV is strictly an image enhancement technology, not a panel type. It's just that the LCD screen made by Sharp is a patented product using this technology. At present, this technology has been gradually licensed to Chimei Company of Taiwan Province Province for public use.