MARK AARON CROWLEY
Pilots at Birdie Dr, Windsor, CA
License number
California A2876453
Issued Date
Jul 2015
Expiration Date
Jul 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1366 Birdie Dr, Windsor, CA 95492
Professional information
Thermal Control System For Liquid Crystal Cell
US Patent:
6943768, Sep 13, 2005
Filed:
Feb 21, 2003
Appl. No.:
10/371983
Inventors:
Shanti A. Cavanaugh - Santa Rosa CA, US
Mark A. Crowley - Windsor CA, US
Neil J. Spatz - Santa Rosa CA, US
Mark A. Crowley - Windsor CA, US
Neil J. Spatz - Santa Rosa CA, US
Assignee:
Xtellus Inc. - Morris Plains NJ
International Classification:
G09G003/36
US Classification:
345101, 345204, 349 72
Abstract:
A thermal control system for a liquid crystal cell is presented that may utilize a time division scheme to multiplex temperature sensing and heating functions across active thermal elements such that the cell may generally be kept at a constant temperature. A calibration process characterizes the profile of the cell and generates a polynomial regression formula that provides the voltage drive output for a temperature and cell state input. The control system stores the state of the liquid crystal cell, the regression formula, and reads the temperature of the liquid crystal cell to compute end assert the temperature compensated voltage drive.