1, CRT, cathode ray tube display. Cathode ray tube is mainly composed of five parts: electron gun, deflection coil, shadow mask, fluorescent layer and glass shell. CRT flat panel display has the advantages of large viewing angle, no bad spots, high color reproduction, uniform chromaticity, adjustable multi-resolution mode and short response time.
2, LCD, liquid crystal display. Its working principle is that there are many liquid crystal particles in the display, which are regularly arranged according to a certain shape, and their colors are different on each side. It can be restored to any other color. When the display receives the display data from the computer, it will control each liquid crystal particle to rotate to a different color surface and combine it into different colors and images.
3. LED and LED display screen. It is a display screen that displays various information such as words, graphics, images, animations, quotes, videos and video signals by controlling the display mode of semiconductor light-emitting diodes.
4, 3D, 3D display. Using the "parallax barrier", two eyes receive different images respectively, forming a stereoscopic effect. The flat panel display provides two sets of images with different phases to form a stereoscopic image.
5. Plasma display. The imaging principle is the imaging principle of plasma display technology. Thousands of sealed low-pressure gas cells are arranged on the display screen, which emit invisible ultraviolet light by current excitation, and then the ultraviolet light hits the red, green and blue phosphor on the back glass to emit visible light, thus imaging.
Extended data:
The first operational LCD was based on Dynamic Scattering Mode (DSM), which was developed by a team led by George Hailmann of RCA Company. Hailmann founded Optel Company, which developed a series of liquid crystal displays based on this technology. ?
1969, James Ferguson discovered the rotating nematic field effect of liquid crystal in Kent State University, Ohio, and registered the same patent in the United States in February of 197 1. 197 1 year, his company (ILIXCO) produced the first LCD based on this feature, replacing the DSM LCD with poor performance.
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