US 12,266,296 B2
Display device and driving method therefor
Young Soo Hwang, Yongin-si (KR); and Hideo Yoshimura, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Nov. 9, 2023, as Appl. No. 18/388,496.
Application 18/388,496 is a continuation of application No. 17/602,525, granted, now 11,875,733, previously published as PCT/KR2020/007673, filed on Jun. 12, 2020.
Claims priority of application No. 10-2019-0167039 (KR), filed on Dec. 13, 2019.
Prior Publication US 2024/0071297 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/021 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display device comprising:
a pixel including a light-emitting element, a first transistor configured to control an amount of current flowing into the light-emitting element, and a second transistor connected between the first transistor and a sensing line;
a power supply which supplies power of different voltages to a drain electrode of the first transistor during a sensing period; and
a sensing circuit which senses sensing currents supplied through the sensing line during the sensing period,
wherein the sensing period includes a first sensing period during which the sensing circuit senses a first sensing current of the sensing currents based on a first sensing data signal corresponding to a first grayscale, and a second sensing period during which the sensing circuit senses a second sensing current of the sensing currents based on a second sensing data signal corresponding to a second grayscale,
wherein the voltage of the power supplied to the drain electrode of the first transistor during the first sensing period is a first sensing voltage, and
wherein the voltage of the power supplied to the drain electrode of the first transistor during the second sensing period is a second sensing voltage different from the first sensing voltage.