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:
Apr. 24, 2012
Filed:
Dec. 12, 2007
Chien-pang Lee, Taoyuan County, TW;
Chien-hui Yang, Taichung, TW;
Ming-wei Huang, Taoyuan County, TW;
Mei-chi Fu, Taoyuan County, TW;
Pai-chung Chien, Taoyuan County, TW;
Chien-Pang Lee, Taoyuan County, TW;
Chien-Hui Yang, Taichung, TW;
Ming-Wei Huang, Taoyuan County, TW;
Mei-Chi Fu, Taoyuan County, TW;
Pai-Chung Chien, Taoyuan County, TW;
Chunghwa Picture Tubes, Ltd., Taoyuan, TW;
Abstract
A method of measuring image-sticking of a display is described. A display having N gray levels is provided. Next, an image-stick test frame having at least a first pattern having a low gray level and at least a second pattern having a high gray level is displayed on the display. After the image-stick test frame is displayed for a while, an image-stick region and a non-image-stick region are formed on the display. A measuring frame is then displayed on the display, wherein the non-image-stick region in the measuring frame has a standard gray level M. A plurality of middle gray levels is sequentially displayed on the image-stick region in the measuring frame. When the boundary between the non-image-stick region and the image-stick region in measuring frame is the lightest, the middle gray level is converted into an image-sticking level.