LED projection displays

被引：5

作者：

Lee, WY ^{[1
]}

Lee, YC ^{[1
]}

Sokolov, K ^{[1
]}

Lee, HJ ^{[1
]}

Moon, I ^{[1
]}

机构：

[1] Samsung Elect Ltd, Digital Media R&D Ctr, Suwon, South Korea

来源：

NONIMAGING OPTICS AND EFFICIENT ILLUMINATION SYSTEMS | 2004年 / 5529卷

关键词：

LED; LCD; projection display; parabola reflector; integration rod;

D O I：

10.1117/12.559231

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper a new illumination system with high power light emitting diode (LED) sources for projection displays is proposed. The prototype of a rear projection system has been developed by using red, green and blue (RGB) LEDs and three LCD panels. Four LEDs were used for each primary color. Parabola reflectors were used for collimating the LED lights and a new array style of LEDs and collimators were used. Integration rods were directly used between collimators and LCD panels without relay lens for uniform light distribution. A 40" projection display system was made with a light output about 25 lm on the screen and the projection engine was very small comparing to the original engine which uses an arc source.

引用

页码：1 / 7

页数：7