With the economic development of Chinas reform and opening up, led display has been developing rapidly, and to facilitate the rapid development of LED control card. LED control card is a new industry, the development of institutions has not yet perfe...[Detailed]

The use of liquid crystals in the liquid crystal under the action of the voltage deflection theory. Since the liquid crystal composition a liquid crystal mosaic screen can be displayed on the same point of red, green, blue color, or a point of the...[Detailed]