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. 29, 2009
Filed:
Sep. 04, 2008
Chun-wei Wu, Chiayi, TW;
Cheng-chung HU, Taoyuan County, TW;
Chiu-jung Huang, Changhua County, TW;
Chao-song Chang, Taipei, TW;
Huan-ting LI, Changhua County, TW;
Chun-Wei Wu, Chiayi, TW;
Cheng-Chung Hu, Taoyuan County, TW;
Chiu-Jung Huang, Changhua County, TW;
Chao-Song Chang, Taipei, TW;
Huan-Ting Li, Changhua County, TW;
Chunghwa Picture Tubes, Ltd., Taoyuan, TW;
Abstract
An examining device adapted to examining a transmittance of a display panel is provided. The examining device includes a light source, a first polarizer, a photodetector, a second polarizer, at least one first reflector and at least one second reflector. The light source and the photodetector are respectively disposed on both sides of the display panel. The second polarizer is disposed between the display panel and the photodetector. The first reflector is disposed between the display panel and the second polarizer. The second reflector is disposed between the display panel and the first polarizer. Light emitting from the light source successively passes via the first polarizer, the display panel, the first reflector, the display panel, the second reflector, the display panel, the second polarizer and then emits into the photodetector.