1. Looking at the current projectors, the working principle of the chip is nothing more than CRT, LCD, DLP, 3LCD and LCOS. At present, in the commercial and home markets, it is basically divided by LCD and DLP projectors.
2. The liquid crystal projector uses metal halogen lamp or UHP (cold light source) to provide external light source, and the liquid crystal panel is used as the light control layer, and the liquid crystal of the corresponding pixel is controlled by the electric signal generated by the control system. The change of liquid crystal transparency controls the intensity of light passing through the liquid crystal, produces signals with different grayscales and colors, and displays the output image, which belongs to the passive projection mode.
3. The patent of 3.DLP technology belongs to TI. The advantages of DLP technology are as follows: DLP technology is based on reflective DMD and is a pure digital display mode. DLP projector products generally have high contrast, clear and sharp black and white images, rich dark layers and rich details; When representing the black and white characters of computer signals, the picture is accurate, the color is pure and the edge outline is clear.
4. Differences
I hope the answer from the projector can help you. If you have any questions, please continue to ask questions and hope to adopt them. Thank you.