PLC main control tie-in hominize interface, large contact type liquid crystal display, easy operation, easy decode.

主控采PLC人机界面，大型触控式液晶荧屏，使操作简单，判读容易。

Dichroitic azo dyes play an important role in the color liquid crystal displays because of their characteristic structure and the ability of being chemical modified.

二向色性偶氮染料分子结上的特性和可修饰性,使其在液晶彩色显示中得到重要的应。

Also some liquid crystal displays depend on, demonstrated body itself which the modulation outside light realizes nonluminous, does not stimulate the eye, is not easy to be weary and so on the merit.

还有液晶显示靠界光来实现的，显示体本身不发光，不刺激眼睛，不易疲劳等优点。