ORGANIC LIGHT EMITTING DIODE DISPLAY AND DRIVING METHOD THEREOF
摘要
PURPOSE: An organic light emitting diode display and a driving method thereof are provided to reduce a compensation time by increasing the accuracy of compensating the deterioration deviation. CONSTITUTION: In an organic light emitting diode display and a driving method thereof, an organic light-emitting diode(OLED) comprises an anode electrode and a cathode electrode. The anode electrode is connected to a third node(N3). A cathode electrode is connected to a ground voltage source(GND). A driving TFT is connected between a high potential voltage source and the third node. A source follower TFT(SFT) comprises a gate electrode, a source electrode, and a drain electrode. A reference current is flowed from the source electrode to a drain electrode. The electric potential of the source electrode follows the electric potential of the gate electrode. The data line(14) and a third node are insulated from the source follower TFT. The anode voltage of the organic light-emitting diode is accurately sensed by using the source follower TFT.
申请公布号
KR20110057531(A)
申请公布日期
2011.06.01
申请号
KR20090113974
申请日期
2009.11.24
申请人
LG DISPLAY CO., LTD.;IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
发明人
BAE, HAN JIN;KIM, BUM SIK;JEONG, YUN SIK;KWON, OH KYONG;YI, JUNG YOON;KIM, SEUNG TAE;LIM, HO MIN;KIM, NA RI