US 11,790,858 B2
Display device and driving method thereof
Sangan Kwon, Cheonan-si (KR); Soon-Dong Kim, Osan-si (KR); Taehoon Kim, Hwaseong-si (KR); Hui Nam, Suwon-si (KR); Junhee Moon, Suwon-si (KR); Eun Sil Yun, Hwaseong-si (KR); and Changnoh Yoon, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Nov. 28, 2022, as Appl. No. 17/994,419.
Application 17/994,419 is a continuation of application No. 17/358,083, filed on Jun. 25, 2021, granted, now 11,514,866.
Claims priority of application No. 10-2020-0147047 (KR), filed on Nov. 5, 2020.
Prior Publication US 2023/0086572 A1, Mar. 23, 2023
Int. Cl. G09G 3/3275 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 3/3266 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0278 (2013.01); G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising a first display region and a second display region, each of the first display region and the second display region including a plurality of pixels connected to a plurality of data lines and a plurality of scan lines;
a data driving circuit which drives the plurality of data lines;
a scan driving circuit which drives the plurality of scan lines; and
a driving controller which controls the data driving circuit and the scan driving circuit to drive the first display region at a first driving frequency and the second display region at a second driving frequency lower than the first driving frequency when an operation mode is a multi-frequency mode,
wherein the driving controller changes the operation mode from the multi-frequency mode to a normal-frequency mode, when a luminance difference between a current frame and a previous frame of the first display region is equal to or greater than a reference value, and
wherein the driving controller controls the data driving circuit and the scan driving circuit to drive all of the first display region and the second display region at a normal frequency when the operation mode is the normal-frequency mode.