Share Email Print
cover

Proceedings Paper

An establishment method of overdrive lookup table
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In the liquid crystal spatial light modulator, creating overdriving look-up table is a cumbersome process. A large number of experiments are needed to measure the driving time between different target phases and the final phase, and the overdrive look-up table occupies excessive memory space that slow down the response speed of the liquid crystal. Aiming at the problems above, an establishment method of overdriving look-up table is put forward. The method uses PWM driving and curve fitting, only two response time curves measured will complete the calculation of the entire drive table, which solves the problem of the complicated experiment of overdriving table construction. Finally, choosing the appropriate quantization wavelength to optimize the overdriving table, effectively improving the accuracy of the drive table and the maintainability and scalability of the system, and it is more suitable for engineering applications.

Paper Details

Date Published: 18 December 2019
PDF: 5 pages
Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 1133805 (18 December 2019); doi: 10.1117/12.2539304
Show Author Affiliations
Hongyang Guo, Key Lab. of Optical Engineering (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Xi Ren, Key Lab. of Optical Engineering (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Jie Hu, Key Lab. of Optical Engineering (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Yongmei Huang, Key Lab. of Optical Engineering (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Shengping Du, Key Lab. of Optical Engineering (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 11338:
AOPC 2019: Optical Sensing and Imaging Technology
John E. Greivenkamp; Jun Tanida; Yadong Jiang; HaiMei Gong; Jin Lu; Dong Liu, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray