EL cold light tablets combined with membrane switch is very good, has a wide perspective, ultra-thin uniform smooth, long service life, light, the light is downy, etc, but also has low power consumption, high brightness, high and low temperature resistance, color is rich, processing freedom, arbitrary shape features, can be made according to the different light color (with white, blue, green, green is the most popular), different shape, size of backlight. Widely used in all kinds of mobile phones, computers, telephones, fax machines, photocopiers, audio equipment (VCD, DVD), notebook computers, electronic scales, home appliances products, remote controls, electronic dictionaries, PDA, MP3, MP4, POS machines, electronic sports watches, as well as all kinds of instruments display screen products.