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:
Dec. 22, 2015
Filed:
Oct. 07, 2013
Lite-on Electronics (Guangzhou) Limited, Guangzhou, CN;
Lite-on Technology Corporation, Taipei, TW;
Chin-Fa Wu, New Taipei, TW;
LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Guangzhou, CN;
LITE-ON TECHNOLOGY CORPORATION, Taipei, TW;
Abstract
A brightness measuring method of device with backlight is performed by a controlling device, for measuring legends of backlight provided by a backlight module of a device under test (DUT). The method includes turning on a uniform light source external to the DUT for illuminating the DUT; capturing and receiving an image of the DUT illuminated with uniform light as a base image; identifying a complete pattern of a to-be-measured legend in the base image; turning off the uniform light source and turning on the backlight of the DUT so as to illuminate the legend of DUT; capturing and receiving an image of the DUT illuminated with backlight as a comparison image, wherein the scope of the comparison image overlaps the scope of the base image; and calculating brightness values of a plurality of pixels in the comparison image whose positions overlap the positions of the complete pattern.