US 11,881,170 B2
Light emitting display device and driving method thereof
Jong Sin Park, Paju-si (KR); Sung Wook Choi, Paju-si (KR); and Jin Woo Lee, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Nov. 1, 2022, as Appl. No. 17/978,728.
Claims priority of application No. 10-2021-0193350 (KR), filed on Dec. 30, 2021.
Prior Publication US 2023/0215358 A1, Jul. 6, 2023
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A light emitting display device comprising:
an organic light emitting diode having an anode electrode connected to a first power line and a cathode electrode;
a capacitor configured to store a data voltage, the capacitor including a first electrode and a second electrode; and
a driving transistor having a first electrode connected to the cathode electrode of the organic light emitting diode, a gate electrode connected to the first electrode of the capacitor, and a second electrode connected to the second electrode of the capacitor and a second power line,
wherein the driving transistor is configured to apply an initialization voltage to a node, wherein the node is connected to the cathode electrode of the organic light emitting diode and the first electrode of the driving transistor.