US 11,798,463 B2
Display device and driving method thereof
Soon-Dong Kim, Osan-si (KR); Sangan Kwon, Cheonan-si (KR); Taehoon Kim, Hwaseong-si (KR); and Jin-Wook Yang, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 18, 2022, as Appl. No. 17/890,761.
Claims priority of application No. 10-2021-0172417 (KR), filed on Dec. 3, 2021.
Prior Publication US 2023/0178003 A1, Jun. 8, 2023
Int. Cl. G09G 3/3266 (2016.01); G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0267 (2013.01); G09G 2330/021 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels connected to a plurality of scan lines;
a scan driving circuit, which drives the plurality of scan lines in synchronization with clock signals; and
a driving controller, which outputs the clock signals that include a first clock signal and a second clock signal,
wherein, while an operating mode is a multi-frequency mode, the driving controller comparts the display panel into a first display area and a second display area,
wherein, in the multi-frequency mode, the scan driving circuit provides scan signals of a first operating frequency to first scan lines positioned in the first display area among the plurality of scan lines, and provides scan signals of a second operating frequency lower than the first operating frequency to second scan lines positioned in the second display area among the plurality of scan lines,
wherein a hold frame of the multi-frequency mode includes a first section during which the first display area is driven, and a second section during which the second display area is driven, and
wherein the driving controller has a control signal generator that outputs the first clock signal and the second clock signal in a normal power mode during the first section and outputs the first clock signal and the second clock signal in a low-power mode during the second section.