US 12,136,391 B2
Pixel circuit
Keunwoo Kim, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 8, 2022, as Appl. No. 17/982,931.
Claims priority of application No. 10-2022-0013233 (KR), filed on Jan. 28, 2022.
Prior Publication US 2023/0245616 A1, Aug. 3, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/30 (2006.01); G09G 3/32 (2016.01); G09G 3/3258 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/30 (2013.01); G09G 3/32 (2013.01); G09G 3/3258 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0251 (2013.01); G09G 2320/0247 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A pixel circuit comprising:
a light emitting element;
a driving transistor which applies a driving current to the light emitting element;
a write transistor including a control electrode which receives a write gate signal, a first electrode connected to a first electrode of the driving transistor, and a second electrode which receives a data voltage;
a first compensation transistor including a control electrode which receives a compensation gate signal, a first electrode connected to a second electrode of the driving transistor, and a second electrode connected to a first electrode of a second compensation transistor;
the second compensation transistor including a control electrode which receives the compensation gate signal, the first electrode connected to the second electrode of the first compensation transistor, and a second electrode connected to a control electrode of the driving transistor;
a storage capacitor including a first electrode which receives a first power voltage and a second electrode connected to the control electrode of the driving transistor; and
a node control transistor including a control electrode which receive the write gate signal, a first electrode directly connected to only the second electrode of the first compensation transistor and the first electrode of the second compensation transistor, and a second electrode.