US 11,881,178 B2
Light emitting display device and method of driving same
Jin-Woo Lee, Seoul (KR); Hye-Min Park, Goyang-si (KR); and Tae-Gung Kim, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jun. 29, 2022, as Appl. No. 17/852,727.
Application 17/852,727 is a continuation of application No. 16/984,981, filed on Aug. 4, 2020, granted, now 11,386,849.
Claims priority of application No. 10-2019-0111011 (KR), filed on Sep. 6, 2019.
Prior Publication US 2022/0328011 A1, Oct. 13, 2022
Int. Cl. G09G 3/30 (2006.01); G09G 3/3275 (2016.01); G09G 3/3266 (2016.01); H10K 59/35 (2023.01)
CPC G09G 3/3275 (2013.01) [G09G 3/3266 (2013.01); H10K 59/353 (2023.02)] 21 Claims
OG exemplary drawing
 
1. A light emitting display device, comprising:
a display panel including M subpixels sharing a sensing line, wherein M is an integer equal to or greater than 2; and
a circuit configured to sense one or more elements included in at least one of the M subpixels through the sensing line,
wherein the M sub-pixels are initialized based on an initialization voltage during an initial period,
wherein the M sub-pixels are sensed based on a sensing voltage during a data writing period,
wherein each of the M subpixels includes a switching transistor and a sensing transistor commonly connected to one scan line,
wherein in one of the M pixels, the switching transistor and the sensing transistor are simultaneously turned on in response to a scan signal, and
wherein in the one of the M pixels, an amount of turn-on time of the switching transistor and the sensing transistor during the initial period is longer than an amount of turn-on time of the switching transistor and the sensing transistor during the data writing period.