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:
Aug. 11, 2009
Filed:
Jun. 28, 2005
Du Hwan OH, Cheongju-si, KR;
Du Hwan Oh, Cheongju-si, KR;
LG. Display Co., Ltd., Seoul, KR;
Abstract
An electro-luminescence display device includes a plurality of column lines, a plurality of first row lines and a plurality of second row lines. The plurality of first row lines cross the column lines and a first scan signal is supplied thereto. The plurality of second row lines intersects the column lines and a second scan signal is supplied thereto. Organic light emitting devices are formed at pixel areas which are defined by the column lines and the first and second row lines. At least two drive switches operate to drive the organic light emitting devices. The second scan signal applies later than the first scan signal to activate the drive switches. A kickback voltage is generated upon a voltage change of the first row line. A kickback compensation circuit operates to cancel the kickback voltage.