US 11,790,857 B2
Data driver and display device including the same
Soo Yeon Kim, Yongin-si (KR); Tae Gon Im, Yongin-si (KR); Jong Jae Lee, Yongin-si (KR); and Dae Gwang Jang, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on May 11, 2022, as Appl. No. 17/741,766.
Claims priority of application No. 10-2021-0084314 (KR), filed on Jun. 28, 2021.
Prior Publication US 2022/0415261 A1, Dec. 29, 2022
Int. Cl. G09G 3/3275 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 2310/0291 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including:
data lines; and
pixels electrically connected to the data lines; and
a data driver that supplies data signals to the data lines,
wherein the data driver includes:
a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and
a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate;
wherein the first reference slew rate is based on a contact resistance between the data driver and one or more of the data lines.