公开(公告)号：US20250165108A1

公开(公告)日：2025-05-22

申请号：US18947141

申请日：2024-11-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： YONGJIN JEE ,  HYOJIN LEE ,  KYOUNGHUN BEEN ,  HOEUNG LEE

IPC: G06F3/044

Abstract: An input sensor of a display device includes a plurality of first electrodes, a plurality of second electrodes crossing the plurality of first electrodes, and a sensor driver selectively operating in a first proximity sensing mode and a second proximity sensing mode. The sensor driver outputs a plurality of transmission signals to the plurality of first electrodes and receives sensing signals from the plurality of second electrodes. The plurality of transmission signals includes a signal swinging between a first high level and a first low level during the first proximity sensing mode. The plurality of transmission signals is a signal swinging between a second high level and a second low level during a second proximity sensing mode. The second high level is a voltage level greater than the first high level.

公开(公告)号：US20230042134A1

公开(公告)日：2023-02-09

申请号：US17739145

申请日：2022-05-08

Applicant: Samsung Display Co., Ltd.

Inventor： KYOUNGHUN BEEN ,  Jinwoo KIM ,  Byeongkyu JEON

IPC: A61B5/00 ,  G01N27/22

Abstract: A method of measuring skin moisture includes: measuring, in response to a touch on a touch panel, a first capacitance for a touch area in association with driving first and second electrodes of the touch panel in a mutual sensing mode; measuring, in response to the touch, a second capacitance for the touch area in association with driving one electrode of the first and second electrodes in a self-sensing mode; comparing the first capacitance with a first reference capacitance; determining, in response to the first capacitance being greater than the first reference capacitance, a skin moisture level using the first capacitance and the second capacitance; comparing, in response to the first capacitance being less than the first reference capacitance, the second capacitance with a second reference capacitance; and compensating, in response to the second capacitance being greater than the second reference capacitance, the first capacitance using the second capacitance.

公开(公告)号：US20240338095A1

公开(公告)日：2024-10-10

申请号：US18423672

申请日：2024-01-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KYOUNGHUN BEEN ,  HYOJIN LEE ,  YOUNGSIK KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041662 ,  G06F3/04184 ,  G06F3/0446 ,  G06F2203/04101

Abstract: Disclosed is an electronic device which include a display layer that includes a plurality of pixels, a sensor layer disposed on the display layer and includes a plurality of first electrodes and a plurality of second electrodes, a display driver that drives the display layer, and a sensor driver that drives the sensor layer and selectively operates, in a proximity sensing mode, in a first mode or a second mode different from the first mode. When the electronic device enters the proximity sensing mode, the display layer operates in an active period during which data are received from the display driver and a blank period during which the data are not received. The sensor driver operates in the second mode in a period overlapping the blank period.