The type of phone screen, i.e. the material used for the phone screen. Divided by color performance capabilities,screen manufacture， mobile phone screens mainly include monochrome, grayscale and color screens;
Monochrome screens: Monochrome screens can only display one color, but can include multiple colors of backlight.
Grayscale screen: Grayscale screen is also a monochrome screen, but grayscale can be used to express the depth of image color. The more gray levels supported, the stronger the image representation. Mobile phone screens usually have 2 to 5 shades of gray.
Color screen: CSDN, TFT, TFD, OLED, etc.
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The basic principle of mobile phone touch screen
