The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Dec. 23, 2008
Martin John Edwards, Crawley, GB;
John Richard Ayres, Reigate, GB;
Martin John Edwards, Crawley, GB;
John Richard Ayres, Reigate, GB;
Chimei Innolux Corporation, Chu-Nan, TW;
Abstract
A method is provided of controlling an illumination source for a display device which comprises a display modulator for modulating the light provided by the illumination source. The method comprises using a light sensor arrangement to generate a first signal based on an ambient light level with first illumination source drive condition, and using the light sensor arrangement to generate a second signal based on the same ambient light level but with second illumination source drive condition different to the first drive condition. The first and second signals are processed to compensate for differences in the light sensor arrangement response characteristics when operating with the first and second illumination source drive conditions thereby to derive a compensated light sensor arrangement characteristic covering both the first and second illumination source drive conditions. Ambient light levels detected using this model of the characteristic are used to control the display device.