【 Weak current College 】 projector three projection technology structure analysis---Power By 【 China power house network 】

Look largely the same projector display due to the use of components, the internal optical system is different, has different species. Now the market launch of projectors can roughly be divided into the following 3 ways. (Limited to fixed pixel mode, except for the CRT mode)

(1) how the 3LCD is the worldwide most widely used method. Using LCD (HTPS) as light valve. Shoot out from the light source of light through a special color separations mirror into red, green and blue primary colors, and then use various dedicated LCD draws the image, the synthesis after the projection. (2) display elements using DLPTMx1 DMDTMx2 (Digital Micromirror Device). DMD is a hundred thousand to hundreds of thousands of pieces of Micron's semiconductor micro mirrors, each consisting of a reflector corresponds to one pixel, the light reflected from the light source to the projected image. There are single, 3 v-chip. (3) LCOS display components using LCOS (Liquid Crystal On Silicon). LCOS is a reflective LCD Panel, which is characterized by a high rate of openings. Wiring and switch components located in reflective layer, so you don't need the black matrix, can realize the seamless connection of the image display. There are single-chip, 3 piece. I. technical analysis using 3LEC projection LCD (HTPS) as light valve. Shoot out from the light source of light through a can only allow a specific light through the mirror (dichroic mirror), separation into red, green and blue primary colors, and then through the Prism will go through various special LCD Panel control of light to synthesize, projection. Second, DLP projection technology analysis DMDTM are structurally in a semiconductor substrate is covered with mirrors, ON/OFF through to make the mirror. DLPTM refers to the use of the optical system of DMDTM collectively, the wheel rotation display and an instant color consistent portrait, through to thousands of times per second the rotation to display full color. III. analysis of LCoS projection technology show symbol used LCOS reflective LCD components (liquid crystal on silicon). Take full advantage of high resolution component properties, how LCOS 3-chip high-performance projectors, rear projection television. 1-chip LCOS manner, using the light into RGB to projection of rotating prisms of light order-driven organizations.