[Display Knowledge Popularization] What is LCD?

Take a look at the mobile phone in our hand, the computer monitor in front of the desk, the TV screen in the living room,

Nowadays, we are in contact with these electronic devices every day and receive information from the Internet through them,

And they all have a common component-Liquid Crystal Display (Liquid Crystal Display), abbreviated as LCD.

The display is easy to understand, but what is a liquid crystal?

Liquid crystal, actually short for liquid crystal, is a kind of polymer material.

It is an intermediate state of certain organic substances within a certain temperature range.

If the temperature is higher than the upper limit of the liquid crystal temperature, the liquid crystal becomes an ordinary transparent liquid and loses its optical properties.

If the temperature is lower than the lower limit of the liquid crystal temperature, the liquid crystal becomes an ordinary crystal and loses fluidity.

Therefore, the liquid crystal not only has the fluidity and continuity of the liquid, but also has some optical properties of the crystal.

It can be said to be the fourth state of matter in addition to solid, liquid, and gaseous states.

There are many types of liquid crystals, and more than 10,000 liquid crystal materials have been synthesized, among which there are thousands of commonly used liquid crystal display materials.

Exclude the newly launched OLED (Organic Light-Emitting Diode) screen,

Our common mobile phone displays to notebook displays, as well as some TV screens, are all made of LCD screens.