Hangzhou Xuhong Technology Co.,Ltd
EN
中文
In current market IPS, LTPS, OLED, AMOLED and other technologies are more and more common, however TN LCD screen products are still widely used. Maybe they don’t have good viewing angle, only 65° or less, but they have better industrial properties, such as wider operating temperature and longer cycle of supply. The specifications of many LCD display products with IPS, LTPS, OLED screens are mostly suitable for consumer product applications, not suitable for industrial products. Why are these screens not suitable for industrial applications? The most troublesome problem is that the life cycle is short, basically 1-2 years, which is fatal to industrial products. Industrial control products usually require a supply cycle of 5-10 years. The suspension of a LCD screen means that the product is out of supply and the project is end of life. Therefore, TN LCD screens for industrial display field have a place in the market.
Now in the market the common TFT LCD glass used in industrial display field is TN mode. However, there is a disadvantage of TN LCD screen: the phenomenon of gray scale inversion is very obvious. What is a gray scale inversion? From 0 gray scale (black) to 255 gray scale (white), theoretically the higher the gray scale, the brighter the display screen should be. but when the screen is at a large angle of view, the low gray scale is probably brighter than the high gray scale, this phenomenon is called gray scale inversion. Therefore, the viewing Angle of a TN screen is often 6 o 'clock or 12 o 'clock, the display viewing Angle has certain limitations.
So how to improve the defects of TN LCD screen in the viewing Angle? Our O-Film TFT module can increase the view width and improve the gray-scale inversion phenomenon. The following is a comparison plot between general TFT and O Film TFT. The left one is the normal TFT module. When we view from the 6 o'clock direction to the best viewing Angle, the normal TFT module begin to show the problem of gray scale inversion, but the gray scale inversion problem of O-film TFT module is improved.
Therefore, in the absence of a full viewing angle screen , O-Film TFT module is the best solution for wide view in the industrial display field.
