What is the working principle of LCD?

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The display interface of the electronic watch we usually wear is a small piece of liquid crystal display. The low power consumption of the liquid crystal display is convenient to use, which makes the liquid crystal display widely used, especially the electronic equipment powered by battery. Let's talk about the working scene, working principle and driving method of the liquid crystal display.tft stone

What is the working principle of LCD?

Method / step

Liquid crystal is a kind of almost transparent material. The path of light passing through liquid crystal is determined by the arrangement of molecules, which is a feature of solid. Charging the liquid crystal will change its molecular arrangement, which will cause the light to be distorted or blocked.

What is the working principle of LCD?

The stopwatch used in the school's sports meeting is a liquid crystal display screen, which is characterized by power saving and battery powered equipment display screen optimization.

What is the working principle of LCD?

There are many kinds of LCD, TN is the distorted item type, and it is also the basic type. The price is low. IPS wide view screen belongs to the low and high-end, and the price is relatively high.

What is the working principle of LCD?

The common circuit is to drive the IC, such as 1621 to drive the liquid crystal. Because the driving methods of the liquid crystal and the LED screen are different, it can't be lit simply by the pin voltage, and it needs to use the positive and negative alternating waveforms to drive.

What is the working principle of LCD?

In order to save the cost of driving, a simple LCD screen, that is, a screen with only a few points or a dozen points, is usually driven by simulating the waveform directly with the IO port of the single-chip microcomputer, which has low cost and stable performance.

What is the working principle of LCD?

Attention should also be paid to the selection process. In some places, the cold and low temperature will lead to the abnormal use of LCD, or the need for HD display, backlight or LED screen should be added.

What is the working principle of LCD?