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What Is An LCD Projector?
Aug 02, 2017

LCD (Liquid Crystal Display) LCD projector, can be divided into LCD panel projector and liquid crystal light valve projector, the former is the projector market, the main products. Liquid crystal is between the liquid and the solid material, itself does not light, the working nature of the temperature by a great impact, the working temperature of -55 ℃ ~ +77 ℃. The projector uses the photoelectric effect of the liquid crystal, that is, the arrangement of the liquid crystal molecules changes under the action of the electric field, which affects the light transmittance or reflectivity of the liquid crystal cell projectors, thus affecting its optical properties, resulting in different gradation and color image. As the LCD projector color reproduction is better, the resolution up to SXGA standard, small size, light weight, portable is also very convenient, is the projector market mainstream products. According to the number of LCD panels, LCD projector is divided into three-chip and single-chip, and veneer projector models have been very few, we see the most or three machine.

In the projector there are three LCD panels, which are distributed with liquid crystal. Liquid crystals are between the liquid and the material between the solid itself does not light, they are like the pixels on the screen as neatly arranged. The projector uses the photoelectric effect of the liquid crystal, that is, the arrangement of the liquid crystal molecules and the state of the liquid crystal molecules themselves under the action of the electric field, which affects the light transmittance or reflectivity of the liquid crystal cell. The projector can use this principle to achieve the purpose of using electric signals to accurately control the light through the liquid crystal unit. The light source in the liquid crystal projector is a metal halogen lamp or a UHP (cold light source), emitting bright white light, through the optical path system in the beam splitter, the white light is divided into RGB (red, green, blue) three elements of color light. RGB three elements of color light in the precise position through the liquid crystal, this time the role of each liquid crystal similar to the light valve to control the passage of light in each liquid crystal and through the number of light.