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. 03, 2009
Filed:
Sep. 30, 2005
Chang Hwan Lee, Gyeongsangbuk-Do, KR;
Hoon Ju Chung, Gyeonggi-Do, KR;
Chang Hwan Lee, Gyeongsangbuk-Do, KR;
Hoon Ju Chung, Gyeonggi-Do, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic light emitting diode display device comprising a display panel, a plurality of light emitting diodes arranged on the display panel and having an optical amount varied according to a current amount, a sample/hold unit for supplying a current to the light emitting diodes, a D/A converter for controlling a current amount supplied to the light emitting diodes from the sample/hold unit by controlling a current amount supplied from the sample/hold unit according to image information, and a voltage controller for conducting or shielding a current between the D/A converter and the sample/hold unit by outputting a second bias voltage of which loss voltage has been compensated according to a characteristic of a transistor provided at the D/A converter to the D/A converter by receiving a first bias voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile