US 11,670,228 B2
Display device and method of driving the same
Jae Hoon Lee, Yongin-si (KR); and Jung Taek Kim, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 26, 2022, as Appl. No. 17/952,314.
Claims priority of application No. 10-2021-0150083 (KR), filed on Nov. 3, 2021.
Prior Publication US 2023/0133826 A1, May 4, 2023
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/0278 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0271 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display unit including a scan line, a data line, and a pixel connected to the scan line and the data line;
a scan driver to supply a scan signal to the scan line;
a data driver to supply a data signal to the data line in a display mode, supply a first voltage and a second voltage to the data line respectively during a first period and a second period in a sensing mode, and output a first sensing signal and a second sensing signal by sensing a driving current of the pixel during the first period and the second period; and
a timing controller to convert first image data into second image data, based on the first sensing signal and the second sensing signal,
wherein the data driver includes an integrator outputting a first analog sensing signal and a second analog sensing signal by sensing a driving current of the pixel during the first period and the second period, the integrator including a variable capacitor, and
wherein, during the first period and the second period, a capacitance of the variable capacitor is adjusted to different values according to the first voltage and the second voltage.