发明名称 |
Data driving circuits and driving methods of organic light emitting displays using the same |
摘要 |
<p>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.
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申请公布号 |
EP1758085(A3) |
申请公布日期 |
2007.09.12 |
申请号 |
EP20060254023 |
申请日期 |
2006.08.01 |
申请人 |
SAMSUNG SDI CO., LTD.;IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY) |
发明人 |
CHUNG, BO YONG;RYU, DO HYUNG;KIM, HONG KWON;KWON, OH KYONG |
分类号 |
G09G3/32 |
主分类号 |
G09G3/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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