A Pocketable Liquid-Television Receiver

Various kinds of numeric or alphanumeric display devices have been studied, some of which are applied to display pictures. As far as picture display is concerned, a cathode ray tube is superior because of such excellent quality as brightness, contrast and response time. But a CRT has drawbacks of weight, size and power dissipation. A liquid-crystal picture display, on the other hand, has an advantage over a CRT in that it can make a TV receiver thin, small and light.