US 11,657,765 B2
Display device and method of driving the same
Jaehoon Lee, Seoul (KR); and Kyoungho Lim, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 15, 2021, as Appl. No. 17/377,239.
Claims priority of application No. 10-2020-0120255 (KR), filed on Sep. 18, 2020.
Prior Publication US 2022/0093048 A1, Mar. 24, 2022
Int. Cl. G09G 3/3275 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 2310/0272 (2013.01); G09G 2320/046 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel to display an image;
a panel driver to drive the display panel; and
a controller to control driving of the panel driver,
wherein the controller comprises a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver, and a second circuit to determine an activation time point of the shift start signal in association with a duration of the variable blank period, and
wherein a number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.