The Liquid Crystal Displays, or LCDs, that we use today are quite a different technology.

我们今天使用的液晶显示器或 LCD 是一种截然不同的技术。

The essential feature of LCDs is that the pixels in them switch between amorphous and crystal-like phases, which changes their optical properties.

LCD的基本特征是其像素在非晶相和类晶相间转化，因此改变其光学性质。

In the 1980s, the displays changed from LEDs to LCDs, and the calculators got thinner, solar-powered, and some no larger than a credit card.

到20世纪80年代，显示屏从 LED 变为 LCD，计算器变得更薄了，可以太阳能供电，有些甚至和信用卡差不多大。