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:
Mar. 12, 2013
Filed:
Feb. 14, 2011
Kang-yi Liu, Hsin-Chu, TW;
Chao-chieh Chen, Hsin-Chu, TW;
Chia-ming Wu, Hsin-Chu, TW;
Chao-kai Huang, Hsin-Chu, TW;
Kang-Yi Liu, Hsin-Chu, TW;
Chao-Chieh Chen, Hsin-Chu, TW;
Chia-Ming Wu, Hsin-Chu, TW;
Chao-Kai Huang, Hsin-Chu, TW;
AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
A display driving circuit includes a timing controller, agate driving circuit, a control unit, a boost converter and a level shifter. The timing controller functions to provide a first start pulse. The level shifter generates a second start pulse by level shifting the first start pulse. The gate driving circuit includes a plurality of shift registers coupled in series and is driven by the second start pulse and the level shifter so as to generate gate signals. The control unit uses the second start pulse and a gate signal generated by a kth shift register to switch a high working voltage provided to the level shifter by the boost converter to a suitable range for driving the gate driving circuit.