The LCD tablet is similar to the traditional blackboard. Both are used for writing and drawing. They are generally used by children and students. Its working principle is to rely on external light to enter the LCD tablet and then diffusely reflect into our eyes. This is a process. It is normal for some people not to understand it. After all, this is also a high-tech product created with new technology. The purpose is to facilitate customers’ children to create, draw, write, etc., and save material waste.

Just as the birth of the computer saved us thousands of sheets of paper, it is convenient and does not cause pollution. This product is the same. It not only avoids children from wasting traditional writing and drawing materials, but also avoids the harm of these materials to children’s bodies.

The main feature of liquid crystal is that there are two stable states without the need for an external electric field. Both stable states can remain stable without the need for an external electric field, thus presenting a bright state and a dark state. When the writing film is subjected to a certain pressure, the arrangement of the liquid crystal molecules in the stressed part will change, just like I can write or draw on the sand. The stressed liquid crystal molecules will record the pressure trajectory according to the magnitude of the force and the direction of application.

When the clear key is pressed, the liquid crystal molecules switch between the bright state and the dark state, thereby achieving the purpose of clearing the handwriting, thus systematically completing a writing process.

In addition to the above advantages, bistable liquid crystals also have the following functions that other materials cannot match:

1. Extremely low power consumption

2. The display process does not consume power, only the refresh moment consumes power

3. Multiple uses, the number of cycles can reach millions

4. No backlight is required, no eye damage