Title :
The Compact Systems Design Based on DMD and the Straight Line 2-Channel LED for a Mobile Embedded Pico Projector
Author :
Shin, Sung Chul ; Jung, Yunsuk ; Ahn, Tae-Jeong ; Jeong, Sang Sik ; Lee, Seung-Gyu ; Choi, Kwang-Yeol
Author_Institution :
Future Device R&D Lab., LG Electron., Seoul, South Korea
fDate :
4/1/2012 12:00:00 AM
Abstract :
We have successfully designed the most compact mobile embedded pico projector system, with an optical module size of up to 2.1 cc (20.6 × 16.4 × 6.2 mm), compared with the liquid crystal on silicon (LCoS) based projector system, which has an engine size of <;10 cc. The most compact pico projector system, with a reduction in size of about 25%, can be obtained. It consists of a projected optical system based on field lens type with 0.2 nHD (640 × 360) digital micromirror device (DMD) panel and an illumination part of the 2 channel type with 2 in1 LED source. It can be obtained the available display image size about 5-60 inches with uniformity over 70%, brightness 8 1m at LED power consumption 1 W and contrast ratio 1700:1 in the dark room.
Keywords :
LED lamps; display instrumentation; lenses; light sources; micromirrors; optical design techniques; optical projectors; DMD; LED source; compact systems design; digital micromirror device; field lens; mobile embedded pico projector; optical module; power 1 W; size 16.4 mm; size 20.6 mm; size 6.2 mm; straight line two channel LED; Color; Lenses; Light emitting diodes; Lighting; Mirrors; Mobile handsets; Optical imaging; DLP; field lens; led; mobile; phone; pico; projector;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2011.2165934
