US 12,119,674 B2
Display device and electronic device including the same
Soongyu Lee, Seoul (KR); and Jinwoo Kim, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 30, 2021, as Appl. No. 17/363,902.
Claims priority of application No. 10-2020-0110422 (KR), filed on Aug. 31, 2020.
Prior Publication US 2022/0069634 A1, Mar. 3, 2022
Int. Cl. H02J 50/80 (2016.01); G06F 1/16 (2006.01); G06F 3/0354 (2013.01); H02J 50/10 (2016.01)
CPC H02J 50/80 (2016.02) [G06F 1/1635 (2013.01); G06F 3/03545 (2013.01); H02J 50/10 (2016.02); H02J 2310/22 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising a display area at which an image is displayed;
an input sensor on the display panel and configured to operate in a first mode to sense a first input or in a second mode to sense a second input provided by an input device;
a sensor controller configured to control an operation of the input sensor;
a wireless power supply configured to transmit a wireless power signal to the input device at a transmission frequency in response to the input sensor operating in the second mode; and
a power controller configured to receive a power control auxiliary signal from the sensor controller and to transmit a power control signal to the wireless power supply, and
wherein the sensor controller is configured to transmit an uplink signal to the input device through the input sensor in the second mode, and the uplink signal comprises a set signal corresponding to the transmission frequency of the wireless power signal, and
wherein the power control auxiliary signal comprises recognition information on a presence or absence of the input device, and
the power controller is configured to determine whether to supply the wireless power signal based on the recognition information.