PROJECTOR SYSTEM USING LED OR LD TO REDUCE POWER LOSS AND NOISE OF THE SYSTEM, ENHANCE LIGHT EFFICIENCY, EXPAND COLOR GAMUT

摘要

PURPOSE: A projector system using LED(Light Emitting Diode) or LD(Laser Diode) is provided to apply LED or LD, capable of light modulation, to the projector system without a color wheel for separating white light, thereby reducing power loss and noise of the system, enhancing light efficiency, and expanding color gamut. CONSTITUTION: A red, a green, and a blue LED/LE arrays(601,602,603) respectively generate a red, a green, and a blue lights to successively be modulated. Light condensers(604) respectively condense the lights generating from respective LED/LE arrays. A cube prism(606) makes the path directions of the condensed lights same. A rod lens(607) makes the lights exiting from the cube prism uniform. A total internal reflection prism(609) changes the paths of the lights exiting from the rod lens to project the lights onto a panel(610). The panel displays image information according to the red, the green, and the blue lights. A projection lens(611) magnifies the image information, and projects the magnified image information to focus the image information on a screen.