US 12,354,547 B2
Pixel circuit and display device including the same
Jiyoung Lee, Yongin-si (KR); Hyunyoung Choi, Yongin-si (KR); Woogun Kang, Yongin-si (KR); and Wonhyouk Jang, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Feb. 7, 2024, as Appl. No. 18/434,863.
Claims priority of application No. 10-2023-0018751 (KR), filed on Feb. 13, 2023.
Prior Publication US 2024/0274079 A1, Aug. 15, 2024
Int. Cl. G09G 3/3233 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/3233 (2013.01) [G09G 3/2092 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/08 (2013.01); G09G 2330/028 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A pixel circuit comprising:
a driving transistor configured to transmit a driving current;
a first capacitor including a first electrode and a second electrode;
a write transistor configured to write a data voltage to a control electrode of the driving transistor in response to a write gate signal;
a first emission transistor configured to provide a first power supply voltage to the second electrode of the first capacitor in response to a first emission signal;
a first initialization transistor configured to provide a first initialization voltage to the control electrode of the driving transistor in response to an initialization gate signal;
a second initialization transistor configured to provide a second initialization voltage to a second electrode of the driving transistor in response to a bias gate signal;
a light emitting element that receives the driving current to emit light;
a second emission transistor configured to electrically connect the first electrode of the driving transistor to the second electrode of the first capacitor in response to a second emission signal; and
a third capacitor including a first electrode that receives the second emission signal and a second electrode electrically connected to the second electrode of the first capacitor, wherein
the first electrode of the first capacitor is electrically connected to the control electrode of the driving transistor.