US 12,014,662 B2
Display apparatus and method of driving display panel using the same
Jinyoung Roh, Hwaseong-si (KR); Hongsoo Kim, Hwaseong-si (KR); Sangan Kwon, Cheonan-si (KR); Sehyuk Park, Seongnam-si (KR); and Hyo Jin Lee, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 9, 2021, as Appl. No. 17/397,000.
Application 17/397,000 is a continuation of application No. 16/923,355, filed on Jul. 8, 2020, granted, now 11,087,665.
Claims priority of application No. 10-2019-0091075 (KR), filed on Jul. 26, 2019.
Prior Publication US 2021/0366340 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/0202 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/10 (2013.01); G09G 2330/023 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a display panel which comprises a gate line and a data line, and displays an image based on input image data;
a gate driver which outputs a gate signal to the gate line; and
a driving controller which determines a first gate driving frequency of a first area of the display panel based on a flicker value according to a grayscale value of the first area and a second gate driving frequency of a second area of the display panel based on a flicker value according to a grayscale value of the second area, the driving controller comprising:
an area divider which divides the input image data into first area data corresponding to the first area and having the grayscale value of the first area representing one of a first still image and a first video image and second area data corresponding to the second area and having the grayscale value of the second area representing one of a second still image and a second video image;
a first variable frequency driver which determines the first gate driving frequency based on the flicker value according to the grayscale value of the first area and generates a first data signal of the first gate driving frequency when the first area data represents the first still image; and
a second variable frequency driver which determines the second gate driving frequency based on the flicker value according to the grayscale value of the second area and generates a second data signal of the second gate driving frequency when the second area data represents the second still image,
wherein the gate driver outputs a first gate signal group corresponding to the first area and a second gate signal group corresponding to the second area,
wherein the gate driver inactivates an output of at least one of the first gate signal group and the second gate signal group based on the first gate driving frequency and the second gate driving frequency,
wherein the first area and the second area are connected to the gate driver, and
wherein the second area is disposed adjacent to the first area in a direction perpendicular to an extending direction of the gate line.