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:
May. 17, 2011
Filed:
Jul. 25, 2006
BO Yong Chung, Seoul, KR;
DO Hyung Ryu, Gyeonggi-do, KR;
Hong Kwon Kim, Euiwang-si, KR;
OH Kyong Kwon, Seoul, KR;
Bo Yong Chung, Seoul, KR;
Do Hyung Ryu, Gyeonggi-do, KR;
Hong Kwon Kim, Euiwang-si, KR;
Oh Kyong Kwon, Seoul, KR;
Samsung Mobile Display Co., Ltd., Suwon-si, Gyeonggi-do, KR;
IUCF-HYU—Hanyang University, Seoul, KR;
Abstract
A data driving circuit for a light emitting display may include a gamma voltage generator that generates gradation voltages, a current sink that receives a predetermined current from a pixel via a data line during a first partial period of one complete period for driving the pixel, a voltage generator that generates an incrementally increasing compare voltage during the first partial period, a comparator that compares a compensation voltage generated based on the predetermined current with the compare voltage and generates a logic signal based on a result of the compare, an adjusting unit that generates compensation data based on the logic signal, and a digital-analog converter that generates a composite data using the compensation data and externally supplied data and selects, as a data signal for the pixel, one of the plurality of gradation voltages based on a bit value of the composite data.