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:
Feb. 26, 2013
Filed:
Aug. 23, 2010
Cho-yu LI, Taoyuan County, TW;
Ming-han Tsai, Taipei, TW;
Cho-Yu Li, Taoyuan County, TW;
Ming-Han Tsai, Taipei, TW;
Chunghwa Picture Tubes, Ltd., Taoyuan, TW;
Abstract
A display panel includes a substrate, a pixel array, and a plurality of shift registers. The pixel array is disposed on the substrate. The shift registers are disposed on the substrate for sequentially outputting a plurality of scanning signals to drive the pixel array. Each of the shift registers includes a pull-up transistor and a first reserve transistor. The pull-up transistor raises the voltage level of the corresponding scanning signal. A control terminal of the first reserve transistor is coupled to a control terminal of the pull-up transistor, and a second terminal of the first reserve transistor is coupled to a second terminal of the pull-up transistor. When the pull-up transistor in each of the shift registers has insufficient output ability, a first terminal of the first reserve transistor is coupled to a first terminal of the pull-up transistor.