US 12,229,359 B2
Display device and driving method with variable frequency of display according to fingerprint sensing
Soon Gyu Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Mar. 1, 2023, as Appl. No. 18/176,932.
Claims priority of application No. 10-2022-0042516 (KR), filed on Apr. 5, 2022.
Prior Publication US 2023/0315225 A1, Oct. 5, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G06V 40/13 (2022.01)
CPC G06F 3/0412 (2013.01) [G06F 3/044 (2013.01); G06V 40/1306 (2022.01)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a sensing area having display pixels and sensing pixels, each display pixel comprising a plurality of sub-pixels, and at least one sensing pixel is located outside a periphery of a corresponding one of the display pixels;
a sensing panel overlapping with the display panel, the sensing panel including sensing electrodes;
a fingerprint sensor overlapping with the sensing panel, the fingerprint sensor having light emitting elements of the display pixels and light receiving elements of the sensing pixels;
a panel driver configured to drive the display panel; and
a sensor driver configured to drive the sensing panel and the fingerprint sensor,
wherein the panel driver and the sensor driver are configured to vary a driving mode according to an operation of the fingerprint sensor such that in response to the fingerprint sensor not being operated, the driving mode of sensor driver is configured to drive the sensing panel in a self-capacitance manner and a mutual capacitance manner, and in response to the fingerprint sensor being operated, the driving mode of the sensor driver is configured to drive the sensing panel in the mutual capacitance manner.