Removal of hot spot speckle on rear projection screen using the rotating screen system |
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| Authors: | Sung Chul Shin Sin Sung Yoo Sang Yeon Lee Chan-Young Park So-Yeon Park Jae Wook Kwon Seung-Gyu Lee |
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| Affiliation: | Digital Display Res. Lab., LG Electron., Seoul, South Korea; |
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| 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. |
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