Title :
Removal of hot spot speckle on rear projection screen using the rotating screen system
Author :
Shin, Sung Chul ; Yoo, Sin Sung ; Lee, Sang Yeon ; Park, Chang-Young ; Park, So-Yeon ; Kwon, Jae Wook ; Lee, Seung-Gyu
Author_Institution :
Digital Display Res. Lab., LG Electron., Seoul, South Korea
fDate :
3/1/2006 12:00:00 AM
Abstract :
This paper investigates a method to remove hot spot speckle, which is produced by laser-long coherence, on a projection screen. The objective of the work has been to first create an image from a digital light processing (DLP) display system using an RGB laser source. We then successfully obtained a high-quality image with speckle contrast, which is less than 2% when the screen was rotated by piezoelectric motor.
Keywords :
display devices; light coherence; speckle; RGB laser source; digital light processing display; high-quality image; hot spot speckle; laser-long coherence; piezoelectric motor; rear projection screen; rotating screen system; speckle contrast; Displays; Fiber lasers; Laboratories; Laser beams; Laser noise; Noise reduction; Optical modulation; Optical noise; Spatial coherence; Speckle; Digital light processing (DLP); FC screen; laser; piezoelectric; projection; speckle;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2005.863779
