| TFT、LCD Screen introduction |
| TFT (ThinFilmTransistor) refers to the thin film transistor, which means each LCD pixels is by the integration of the thin film transistor to drive behind the pixels, which can achieve high speed, high brightness, high contrast display screen information, is currently one of the Zui good LCD color display device, the effect is close to the CRT monitor, is now the mainstream on the laptop and desktop display device.Each pixel of TFT is controlled by the TFT integrated on itself and is an active pixel.As a result, not only the speed can be greatly improved, but the contrast and brightness can also be greatly improved, and the resolution can also be very high.
TFT (Thin film transistorized) screen, which is also widely used in medium and high-end color mobile phones at present. It has three kinds of colors: 65536, 260,000 and 16 million
Summary of the LCD
Liquid Crystal Display is short for Liquid Crystal Display. The structure of LCD is to place Liquid crystals in two parallel glasses. There are many thin vertical and horizontal wires between the two glasses.
According to the number of internal LCD panels, LCD projectors can be divided into single-chip and three-chip types. Most modern LCD projectors use 3-chip LCD panels (figure 1).Three - chip LCD projector is used red, green and blue three liquid crystal panels as the control layer of red, green and blue light respectively.The white light emitted by the light source passes through the lens group and converges to the color mirror group. The red light is first separated and projected onto the red liquid crystal board, which "records" the image information represented by the transparency and is projected to generate the red light information in the image.The green light is projected onto the green liquid crystal plate, forming the green light information in the image. Similarly, the blue light passes through the blue liquid crystal plate to generate the blue light information in the image. The light of three colors converges in the prism and is projected onto the projection screen to form a full-color image.The three-chip LCD projector has higher image quality and higher brightness than the single-chip LCD projector.LCD projector is smaller in size, lighter in weight, simpler in manufacturing process, higher in brightness and contrast, and moderate in resolution. At present, the market share of LCD projector occupies more than 70% of the total market share, making it the highest and most widely used projector in the market. |
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