US 9,812,066 B2
Organic light emitting display and driving method of the same
Cheol Min Kim, Seongnam-si (KR); Hyung ryul Kang, Seoul (KR); and Se Byung Chae, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin, Gyeonggi-do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin, Gyeonggi-Do (KR)
Filed on Apr. 7, 2015, as Appl. No. 14/680,518.
Claims priority of application No. 10-2014-0170287 (KR), filed on Dec. 2, 2014.
Prior Publication US 2016/0155387 A1, Jun. 2, 2016
Int. Cl. G09G 3/20 (2006.01); G09G 3/3291 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 3/2092 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An organic light emitting display, comprising:
a plurality of pixels, each pixel including:
an organic light emitting diode;
a first transistor having a gate electrode connected to a scan line, a first electrode connected to a data line, and a second electrode connected to a first node;
a second transistor to drive the organic light emitting diode based on a data signal provided through the first transistor;
a first capacitor connected between the first node and a second node connected to a gate electrode of the second transistor;
a second capacitor connected between the first node and a first power supply voltage;
a third transistor connecting the first power supply voltage with a third node connected to another electrode of the second transistor;
a fourth transistor connecting one electrode of the second transistor with a fourth node connected to an anode electrode of the organic light emitting diode;
a fifth transistor having one electrode connected to the first node and the other electrode connected to the third node;
a sixth transistor having one electrode connected to a fifth node to which an initialization voltage is applied and the other electrode connected to the fourth node; and
a seventh transistor connecting the second node with the fifth node.