1. The Foundation of optical Block

2. The principle of a LCD panel of operation

3. The LCD panel at the time of non-voltage In polarizer LCD Panel Out polarizer Light passes along the crevice where a liquid crystal molecule is located in a line. As shown in the left figure, when the arrangement of a liquid crystal molecule is twisted 90 degrees, light is also twisted 90 degrees and is passed. From the above, it can shift 90 degrees at the time of non-voltage, and two arranged polarizer can be passed. liquid crystal molecule Light

4. In Polarizer LCD Panel Out Polarizer The LCD panel at the time of voltage impression If voltage is applied to the both ends of liquid crystal, how to locate a liquid crystal molecule in a line along with an electric field will be changed. When the arrangement of a liquid crystal molecule stands straight as shown in the right figure, and a twist is lost, light also passes toward the bottom as it is. From the above, it can shift 90 degrees at the time of voltage impression, and two arranged polarizing plates cannot be passed. Light Voltage

5. The principle of a LCD panel of operation Light Voltage In Polarizer Out Polarizer LCD Panel

6. (LCD Panel) VGA : 640 x 480 dot SVGA : 800 x 600 dot (PT-LC56) XGA : 1024 x 768 dot (PT-L76/80,PT-L735)

7. Structure of an optical block

8. The 2nd lens array （ Improvement in efficiency of light ） In and Out Polarizer Green LCD Panel LAMP To Lens The 1st lens array （ Cut of Ultraviolet ray ） Dichroic mirror (Color separation) ＜ The composition figure of a LCD projector optical system ＞ Red LCD Panel prism Blue LCD Panel

9. Lamp LCD Panel Dichroic mirror All reflective mirrors Prism Lens Relay lens