What Is An LCD Screen

LCD projectors can be divided into single-chip and three-chip types according to the number of internal liquid crystal panels. Most modern LCD projectors use three-chip LCD panels (Figure 1). The three-chip LCD projector uses red, green, and blue liquid crystal panels as the control layers for red, green, and blue light, respectively. The white light emitted by the light source passes through the lens group and then converges to the dichroic mirror group. The red light is first separated and projected onto the red liquid crystal panel. The image information represented by transparency "recorded" by the liquid crystal panel is projected into the image. red light information.

The green light is projected on the green liquid crystal panel to form the green light information in the image. Similarly, the blue light passes through the blue liquid crystal panel to generate the blue light information in the image. The three colors of light are converged in the prism and projected by the projection lens to A full-color image is formed on the projection screen. Three-chip LCD projectors have higher image quality and higher brightness than single-chip LCD projectors. LCD projectors are small in size, light in weight, simple in manufacturing process, high in brightness and contrast ratio, and moderate in resolution. Now the market share of LCD projectors accounts for more than 70% of the total market share, which is the current market share. The highest and most widely used projector.