US 11,657,749 B2
Display device having adjusted driving voltage based on change in image signal
Tae-Seok Ha, Hwaseong-si (KR); Kyoungsoo Kim, Suwon-si (KR); Kyu-Jin Park, Hwaseong-si (KR); Sung-Jae Park, Seongnam-si (KR); Seung-Woon Shin, Asan-si (KR); Ho Lee, Seoul (KR); and Woon-Rok Jang, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 10, 2022, as Appl. No. 17/647,470.
Claims priority of application No. 10-2021-0052116 (KR), filed on Apr. 22, 2021.
Prior Publication US 2022/0343825 A1, Oct. 27, 2022
Int. Cl. G09G 3/20 (2006.01); G09G 3/3275 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/2007 (2013.01) [G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel configured to display an image;
a controller configured to generate image data and to generate a first control signal and a second control signal in response to a first image signal and a second image signal;
a panel driver configured to receive the image data and the first control signal from the controller and to generate a driving signal in response to the image data and the first control signal to drive the display panel; and
a voltage generator configured to generate a driving voltage to drive the display panel and to change a voltage level of the driving voltage in response to the second control signal, wherein the first image signal corresponds to a second frame located before a third frame in which the driving voltage is changed, wherein the second image signal corresponds to a first frame located before the second frame, and wherein the controller is configured to generate the image data corresponding to the second frame in response to the first image signal and the second image signal.