公开(公告)号：US20230333680A1

公开(公告)日：2023-10-19

申请号：US18211282

申请日：2023-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Ga Young KIM ,  Jang Hui KIM ,  A Ra JO

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F3/04164 ,  G06F2203/04106 ,  G06F3/0446 ,  G06F3/04144 ,  G06F2203/04105 ,  G06F3/0443 ,  G06F2203/04113 ,  G06F3/0414 ,  G06F3/0416 ,  G06F2203/04111

Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.

公开(公告)号：US20220326832A1

公开(公告)日：2022-10-13

申请号：US17711594

申请日：2022-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Choon Hyop LEE ,  Jang Hui KIM ,  Jae Won KIM ,  In Nam LEE

IPC: G06F3/041 ,  G06F3/044 ,  H03M1/18

Abstract: An input sensing device includes driving electrodes and sensing electrodes, and an analog front-end which processes sensing signals from the sensing electrodes to output a differential output value. The analog front-end includes a first charge amplifier which differentially amplifies first and second sensing signals from two sensing electrodes to first and second input terminals, thus outputting first and second differential signals through first and second output terminals, a second charge amplifier which differentially amplifies the first and second differential signals, thus outputting third and fourth differential signals, a first demodulation circuit which filters the first and second differential signals in a first mode and filters each of the third and fourth differential signals in a second mode, and a first analog-to-digital converter which outputs a first sensing value based on at least one output signal of the first demodulation circuit.

公开(公告)号：US20220137736A1

公开(公告)日：2022-05-05

申请号：US17546992

申请日：2021-12-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui KIM ,  Ga Young KIM ,  Do lk KIM ,  Sang Chul LEE ,  A Ra JO

IPC: G06F3/045

Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.

公开(公告)号：US20210318730A1

公开(公告)日：2021-10-14

申请号：US17154649

申请日：2021-01-21

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Jae LEE ,  Jang Hui KIM ,  Kang Won LEE ,  Sang Chul LEE

IPC: G06F1/16 ,  H01Q1/38

Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

公开(公告)号：US20210064187A1

公开(公告)日：2021-03-04

申请号：US16848694

申请日：2020-04-14

Applicant: Samsung Display Co., Ltd.

Inventor： Choon Hyop LEE ,  Kang Won LEE ,  Ga Young KIM ,  Jang Hui KIM ,  A Ra JO

IPC: G06F3/044 ,  H01L27/32 ,  G06F3/041

Abstract: A sensing circuit includes: a plurality of sensor electrodes; a first capacitance between the sensor electrodes; a plurality of proximity sensing electrodes electrically isolated from the sensor electrodes; and a second capacitance between at least one of the sensor electrodes and the proximity sensing electrodes. A density of at least one of the proximity sensing electrodes is less than a density of at least one of the sensor electrodes.

公开(公告)号：US20190220143A1

公开(公告)日：2019-07-18

申请号：US16214213

申请日：2018-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui KIM ,  Sang Chul LEE

IPC: G06F3/041 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06K9/0002 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809

Abstract: A display device including: a display panel for generating an image; and an input sensing layer disposed on the display panel, the input sensing layer sensing a user input. The display panel includes: pixels each including an organic light emitting diode that emits light, corresponding to a driving current flowing from a first power source to a second power source; and a noise detector for generating a noise voltage by detecting noise from the second power source. The input sensing layer includes: first sensing electrodes and second sensing electrodes intersecting each other; and a readout circuit for removing the noise included in a sensing voltage received from the second sensing electrodes based on the noise voltage.