US 12,033,546 B2
Display apparatus and method of driving the same
Keunwoo Kim, Seongnam-si (KR); and Taewook Kang, Seongnam-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Apr. 21, 2023, as Appl. No. 18/305,156.
Claims priority of application No. 10-2022-0069146 (KR), filed on Jun. 7, 2022.
Prior Publication US 2023/0395030 A1, Dec. 7, 2023
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a light emitting element;
a driving switching element configured to apply a driving current to the light emitting element; and
a first compensation switching element and a second compensation switching element connected in series to each other between a control electrode of the driving switching element and an output electrode of the driving switching element,
wherein a control electrode of the first compensation switching element and a control electrode of the second compensation switching element are configured to receive a compensation gate signal,
wherein a falling waveform of the compensation gate signal and a rising waveform of the compensation gate signal are asymmetrical to each other,
wherein the compensation gate signal falls from a high level to a low level,
wherein the compensation gate signal rises from the low level to an intermediate high level,
wherein the compensation gate signal rises from the intermediate high level to the high level,
wherein the compensation gate signal rises from the low level to the intermediate high level, and maintains the intermediate high level by a first half of an emission period, and
wherein the compensation gate signal rises from the intermediate high level to the high level, and maintains the high level by a second half of the emission period.