同学们可能都戴过电子表,电子表上一闪一闪的数字,如同眼睛般一眨一眨,数字的形状也很特别,屏幕上的数字是怎样显示出来的呢?要想知道这个问题,还是让我们首先来了解一种特殊的晶体——液晶吧? 科学研究发现,液晶是一个庞大的家族,其家庭成员都有怪脾气。比如给有的液晶加热,它会变得混浊不清,继续加热,它又会变得透明;而给有的液晶加上一定的电压,它就变 Students may have worn the electronic watch, flashing figures on the electronic watch, like a blink of an eye, the shape of the figure is also very special, the figures on the screen is how to show it? To know this problem Or let us first understand a special kind of crystal - liquid crystal? Scientific research found that liquid crystal is a huge family, its family members have a strange temper. For example, to some liquid crystal heating, it will become cloudy, continue to heat, it will become transparent; and to some liquid crystal plus a certain voltage, it will change