US 11,915,640 B1
Pixel circuit and display device including the same
Donghwan Shim, Hwaseong-si (KR); Kwangwoo Park, Hwaseong-si (KR); Eonjoo Lee, Hwaseong-si (KR); Jin-Yong Lee, Asan-si (KR); Cheol Jang, Uiwang-si (KR); and Yongseon Jo, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 9, 2023, as Appl. No. 18/119,498.
Claims priority of application No. 10-2022-0096071 (KR), filed on Aug. 2, 2022.
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0275 (2013.01); G09G 2310/0278 (2013.01); G09G 2310/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit comprising:
a light-emitting element;
a write transistor which writes a data voltage;
a driving transistor which generates a driving current based on the data voltage and applies the driving current to the light-emitting element;
a first initialization transistor which applies a first initialization voltage to a control electrode of the driving transistor;
a blocking transistor disposed between the light-emitting element and the driving transistor;
a first blocking control transistor including:
a control electrode connected to the control electrode of the driving transistor;
a first electrode which receives a first signal; and
a second electrode connected to a control electrode of the blocking transistor; and
a second blocking control transistor including a control electrode connected to the control electrode of the driving transistor, a first electrode which receives a second signal, and a second electrode connected to the control electrode of the blocking transistor.