US 11,727,835 B2
Pixel circuit, display apparatus including the same and method of driving the same
Tae-Seok Ha, Hwaseong-si (KR); Kyoungsoo Kim, Suwon-si (KR); Kyu-Jin Park, Hwaseong-si (KR); Sung-Jae Park, Seongnam-si (KR); Seung-Woon Shin, Asan-si (KR); Ho Lee, Seoul (KR); and Woon-Rok Jang, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jan. 4, 2022, as Appl. No. 17/568,289.
Claims priority of application No. 10-2021-0024384 (KR), filed on Feb. 23, 2021.
Prior Publication US 2022/0270528 A1, Aug. 25, 2022
Int. Cl. G09G 3/00 (2006.01)
CPC G09G 3/006 (2013.01) [G09G 2310/0275 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit comprising:
a light emitting element including a first electrode and a second electrode;
a first switching element which applies a first power voltage to the first electrode of the light emitting element and includes a control electrode;
a second switching element which applies a data voltage to the control electrode of the first switching element;
a third switching element which senses a signal of the first electrode of the light emitting element;
a sensing resistor including a first end connected to the second electrode of the light emitting element and a second end which receives a second power voltage; and
a fourth switching element which senses a signal of the second electrode of the light emitting element and connected to the first end of the sensing resistor.