US 12,198,624 B2
Display device and driving method thereof
Won Cho, Paju-si (KR); Hwa Young Kim, Paju-si (KR); and Joon Min Park, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Appl. No. 18/040,634
Filed by LG Display Co., Ltd., Seoul (KR)
PCT Filed Jul. 13, 2021, PCT No. PCT/KR2021/008958
§ 371(c)(1), (2) Date Feb. 3, 2023,
PCT Pub. No. WO2022/030788, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 10-2020-0097790 (KR), filed on Aug. 5, 2020.
Prior Publication US 2023/0298524 A1, Sep. 21, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/20 (2006.01); G09G 3/3225 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3225 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/0626 (2013.01); G09G 2340/0435 (2013.01); G09G 2340/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a pixel including a driving transistor and a light emitting device;
a graphics processor configured to render image data, which is to be applied to the pixel, change a length of a vertical blank period, and output a rendering completion signal prior to outputting the rendered image data;
a timing controller configured to set a sensing period on the basis of the rendering completion signal in the vertical blank period; and
a sensing circuit configured to sense an electrical characteristic of the driving transistor in the sensing period,
wherein the sensing period starts at a first timing which is a predetermined time earlier than an end time of the vertical blank period, and ends at a second timing between the first timing and the end time of the vertical blank period, and
wherein a length of the predetermined time is constant regardless of a length variation of the vertical blank period, and is longer than a length of the sensing period.