US 12,437,718 B2
Pixel and organic light emitting display device comprising the same
Jaesung Kim, Uijeongbu-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 16, 2024, as Appl. No. 18/666,328.
Application 18/666,328 is a division of application No. 17/460,529, filed on Aug. 30, 2021, granted, now 12,020,640.
Claims priority of application No. 10-2020-0137040 (KR), filed on Oct. 21, 2020.
Prior Publication US 2024/0304147 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0233 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A pixel for an organic light emitting display device comprising:
an organic light emitting diode that emits light by a driving current;
a driving transistor configured to control the driving current, the driving transistor including a source electrode as a first node, a gate electrode as a second node, and a drain electrode as a third node;
a first transistor configured to connect the second node and the third node;
a second transistor configured to apply a data voltage (Vdata) to the first node;
a third transistor configured to apply a driving voltage (VDD) to the second node;
a fourth transistor that forms a current path between the driving transistor and the organic light emitting diode;
a fifth transistor configured to apply an initial voltage to the driving transistor;
a sixth transistor configured to apply a reset voltage to a fourth node which is an anode electrode of the organic light emitting diode;
a storage capacitor that includes one electrode connected to the second node and another electrode connected to a fifth node;
a seventh transistor configured to apply the driving voltage to the fifth node; and
an eighth transistor configured to apply a reference voltage (Vref) to the fifth node,
wherein the third transistor is turned on during at least a partial period of a period during which the fourth transistor is turned off.