公开(公告)号：US11941202B2

公开(公告)日：2024-03-26

申请号：US17746059

申请日：2022-05-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hun Park ,  Yun A Ma ,  Mi Hee Son

IPC: G06F3/044 ,  G06F1/16 ,  G06F3/041 ,  G09G3/3233

CPC classification number: G06F3/04166 ,  G06F1/1643 ,  G06F3/044 ,  G06F3/0443 ,  G09G3/3233 ,  G09G2354/00

Abstract: An input sensor includes sensing electrodes, and multiplexers for connecting sensing electrodes corresponding to one group of the sensing electrodes to one output terminal. Each of the multiplexers includes a multiplexer circuit including a plurality of switching transistors, and a shift register array for outputting selection signals for controlling the plurality of switching transistors. Each of the switching transistors includes sub-switching transistors connected in parallel between one of the sensing electrodes corresponding to the one group and the output terminal. The sub-switching transistors are sequentially turned on in response to one of the selection signals.

公开(公告)号：US11586319B2

公开(公告)日：2023-02-21

申请号：US17206603

申请日：2021-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： Yongsub So ,  Yun A Ma ,  Mi-Hee Son

IPC: G06F3/041

Abstract: A display device includes: a display panel configured to display an image; an input sensor on the display panel; an approach sensing electrode arranged around the input sensor; and a sensor controller connected to the input sensor and the approach sensing electrode, wherein the sensor controller is configured to drive the input sensor in a first driving mode during a first input sensing frame and to drive the input sensor in a second driving mode during a second input sensing frame, and the sensor controller is further configured to provide an uplink signal to the approach sensing electrode in response to the input sensor operating in the first or second driving mode.