P‐175: A Study of Image Distortion and Brightness‐Uniformity Compensation in a Laser Projection System Using a 2‐D MEMS Scanner
Junghoon Seo, Yong‐Ki Kim, Jung-Hwan Choi, Jae-Wook Kwon · SID Symposium Digest of Technical Papers · 2010
Abstract This experiment created a laser projection system that used a 2‐D MEMS scanner as the driving method for the display device. The 2‐D MEMS scanner that can scan images horizontally and vertically was applied to drive using the bi‐directional scanning method. However, the laser beam velocity varies due to the mechanics of the scanning mirror, so it causes an image distortion and brightness uniformity issue. So, we suggest an image distortion and brightness compensation method based on the simulation of the mechanical scanner movement and optical system. We can also adjust each RGB color pixel alignment separately and reduce power consumption through the brightness uniformity compensation.