Title :
Study of the Methods to Realize Gray Scale for LCoS Based on Sub-Frame Modulation
Author :
Chen Cui-ying ; Wu Di ; Fan Wei ; Dai Yong-ping
Author_Institution :
Shenzhen LIWEI Digital Technol. Co., Ltd., Shenzhen, China
Abstract :
In this paper, different kinds of methods for realizing gray scale for LCoS were studied. Among these methods, time ratio gray scale (TRG) is superior to other methods in the aspect of gray scale. We have achieved high gray scales and image uniformity for the LCoS using the sub-frame modulation of TRG. In this method, each frame was divided into 8 sub-frames with the proportion as 1:2:4:8:16:32:64:128. Thus totally 256 gray scales was achieved.
Keywords :
liquid crystal displays; liquid crystal on silicon; microdisplays; pulse width modulation; LCoS; Si; gray scale; image uniformity; liquid crystal-on-silicon; subframe modulation; time ratio gray scale; Drives; Field programmable gate arrays; Gray-scale; Organic light emitting diodes; Pixel; Pulse width modulation;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780497
