The ITO film commonly used in LCD handwriting is a high -electrical material material, which is mixed with oxide and tin oxide. The appearance is black and white stripe -like structure. This black and white ITO membrane plays a key role in the LCD handwriting board.

First, the black and white ITO membrane is used to make the sensor layer of the liquid crystal handwriting board. When the user is written or operated on the handwriting board using a pen tip or touch finger, the sensor layer will detect and recognize the current to achieve the function of touch input. The high -conductive performance of the black and white ITO membrane ensures the accurate transmission and accurate recognition of the current signal, so that the handwriting board can efficiently capture the user's input action.

Secondly, the black and white ITO film plays an important role in the LCD layer of the LCD handwriting board. The LCD layer is the core component of the liquid crystal handwriting board. The degree of light is adjusted through the arrangement of the liquid crystal molecule to present the required image or text. As the electrode layer of the black and white ITO membrane, the guidance current passes through the LCD layer, forming different electric field distribution, so that the liquid crystal molecules are arranged in an orderly or disorderly arrangement in different areas, thereby achieving control of image or text display. Its high conductivity and stability ensure the high -quality display effect of LCD handwriting boards.

In short, the LCD handwriting plate uses the black and white ITO film mainly based on its high -conductivity, stability and lower resistance characteristics, and the key role of the opponent's sensor layer and LCD layer.