US 12,087,229 B2
Display device and method of operating the same
Sungjin Kim, Gwangju (KR); Jongwon Park, Yongin-si (KR); Myeonghee Seo, Hwaseong-si (KR); Huigyeong Yun, Hwaseong-si (KR); Seung-Kyu Lee, Asan-si (KR); and Younguk Hwang, Asan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Apr. 19, 2023, as Appl. No. 18/136,458.
Application 18/136,458 is a continuation of application No. 17/400,589, filed on Aug. 12, 2021, granted, now 11,640,793.
Claims priority of application No. 10-2020-0151391 (KR), filed on Nov. 12, 2020.
Prior Publication US 2023/0267890 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3266 (2016.01); G09G 3/3233 (2016.01); G09G 3/3275 (2016.01)
CPC G09G 3/3266 (2013.01) [G09G 3/3233 (2013.01); G09G 3/3275 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0213 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels;
a data driver which applies data signals to the display panel;
a scan driver including a plurality of scan stages, which sequentially applies scan signals to the display panel;
an emission driver including an emission stage which sequentially applies emission signals to the display panel;
a controller which controls the scan driver, the emission driver, and the data driver; and
a power supply voltage generator which generates a first low voltage based on an input voltage, scales the first high voltage to a second high voltage lower than the first high voltage, scales the first low voltage lower than the first and second high voltages to a second low voltage higher than the first low voltage, selectively provides the first high voltage or the second high voltage to each of the scan stages, and selectively provides the first low voltage or the second low voltage to each of the scan stages.