US 11,687,191 B2
Display device
Jae Hyun Park, Seoul (KR); Tae Joon Kim, Seongnam-si (KR); Jung Mok Park, Hwaseong-si (KR); Jung Goo Lee, Seoul (KR); Ji Yeong Lee, Seoul (KR); and Hyun Wook Cho, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 19, 2021, as Appl. No. 17/406,330.
Claims priority of application No. 10-2020-0122471 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0093694 A1, Mar. 24, 2022
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0416 (2013.01); G06F 3/044 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel including pixels;
a touch sensor on the display panel and including touch electrodes;
a touch driver configured to drive the touch sensor at a first frequency, provide touch driving signals to the touch electrodes during a touch sensing period of a touch frame period, and stop providing the touch driving signals during a touch waiting period of the touch frame period; and
a display driver configured to drive the display panel at a second frequency lower than the first frequency in a first mode, provide scan signals to the pixels during a display period of a display frame period, and stop providing the scan signals during a display waiting period of the display frame period, wherein when the display driver is switched from the first mode to a second mode, the display driver is configured to drive the display panel at a third frequency lower than the second frequency, and the touch driver is configured to increase the touch waiting period of the touch frame period when the display panel is driven at the third frequency that is lower than the second frequency.