US 12,412,518 B2
Driving controller, display device including the same, and operation method of display device
Jungeon An, Yongin-si (KR); and Kihyun Pyun, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jun. 17, 2024, as Appl. No. 18/745,681.
Claims priority of application No. 10-2023-0144109 (KR), filed on Oct. 25, 2023.
Prior Publication US 2025/0140166 A1, May 1, 2025
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0275 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel;
a driving controller configured to receive an input image signal and to generate an output of an image data signal based on the input image signal;
a voltage generator configured to generate a plurality of gamma voltages in response to a voltage control signal; and
a data driving circuit configured to receive the plurality of gamma voltages and to provide a data signal corresponding to the image data signal to the display panel,
wherein the driving controller operates between in a normal mode and in a power-saving mode,
wherein, in the power-saving mode, the driving controller generates the voltage control signal for changing voltage levels of the plurality of gamma voltages in response to the input image signal and a peak signal, wherein, in the normal mode, at least one of the plurality of gamma voltages has a first voltage level, and
wherein, in the power-saving mode, at least one of the plurality of gamma voltages has a second voltage level which is lower than the first voltage level.