Is the touch screen of the touch screen mobile phone and the LCD screen of the mobile phone glued together, or is it a screen itself?
The touch screen of the mobile phone and the LCD screen of the mobile phone are the components of the screen of the mobile phone. The touch screen is used for touch operation, and the LCD screen of the mobile phone is used to display images. to operate.
If the mobile phone display is normal, but the touch does not respond, the touch screen is broken. If the display is abnormal, such as the screen is damaged, there are obvious liquid crystals flowing out, etc., it means that the inner screen, that is, the display screen is broken.
The display screens are all glued together with the touch screen. Some can be replaced by the display screen or touch screen alone, and some can only be replaced as a whole, which is what people call the screen assembly. The display screen and touch screen of the mobile phone need to be assembled through the packaging process, and also need to be tested.
Mobile phone screen materials can be divided into: TFT screen, IPS screen, AMOLED screen, etc.
1) The TFT mobile phone LCD screen adopts a combination of "back transparent" and "reflective", and a special light pipe is set on the back of the liquid crystal. The liquid crystal has a semiconductor switch for each pixel, and its processing technology is similar to that of large-scale integrated circuits. .
2) The IPS screen is an extension of the LCD. The biggest feature of the IPS panel is that its two poles are on the same surface. When an external force is encountered, the firmness and stability of the liquid crystal molecular structure of the hard screen is far superior to that of the soft screen, so It will not cause picture distortion and affect the color of the picture, and can protect the picture effect from being damaged to the greatest extent.
3) AMOLED is an active matrix organic light emitting diode panel. Compared with traditional LCD panels, AMOLED has the advantages of fast response speed, self-illumination, excellent display effect and lower power consumption, as well as faster response speed, higher contrast ratio, and wider viewing angle.