公开(公告)号：US11903296B2

公开(公告)日：2024-02-13

申请号：US17985913

申请日：2022-11-14

Applicant: Samsung Display Co., Ltd.

Inventor： In Nam Lee ,  Jang Hui Kim ,  Choon Hyop Lee

IPC: H10K59/40 ,  G06F3/041 ,  G06F3/044 ,  H10K50/844

CPC classification number: H10K59/40 ,  G06F3/0412 ,  G06F3/0443 ,  G06F3/04184 ,  H10K50/844 ,  G06F2203/04112

Abstract: A display device including a display panel including pixels that emit light on a frame basis. An input sensing unit includes driving electrodes and sensing electrodes. A driving signal generator is configured to provide driving signals to the driving electrodes. Analog front-ends are configured to receive sensing signals depending on the driving signals from the sensing electrodes. A signal processor is configured to detect touch input, based on differential output values of the analog front-ends. The driving signal generator provides the driving signals to the driving electrodes while avoiding a period in which a pulse of a vertical synchronization signal defining start of the frame is generated.

公开(公告)号：US11903294B2

公开(公告)日：2024-02-13

申请号：US17863705

申请日：2022-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Kang Won Lee ,  Do Ik Kim ,  Choon Hyop Lee ,  Jang Hui Kim ,  Sang Chul Lee

IPC: H10K59/40 ,  G06F3/044 ,  G06F3/041

CPC classification number: H10K59/40 ,  G06F3/0412 ,  G06F3/0445

Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another; second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.

公开(公告)号：US11899878B2

公开(公告)日：2024-02-13

申请号：US18148253

申请日：2022-12-29

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

CPC classification number: G06F3/04166 ,  G06F3/044 ,  G06F3/04164 ,  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：US11875001B2

公开(公告)日：2024-01-16

申请号：US16714775

申请日：2019-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Choon Hyop Lee ,  Kang Won Lee ,  Sang Chul Lee ,  Seung Hwan Chung

IPC: G06F3/044 ,  G06F3/0354 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/03547 ,  G06F3/0414 ,  G06F2203/04103

Abstract: A touch sensor includes: a base layer; a plurality of first touch electrodes arranged on the base layer in a first direction; and at least one strain gauge disposed between the plurality of first touch electrodes, the at least one strain gauge configured to sense a pressure, wherein the plurality of first touch electrodes and the strain gauge are arranged on the same layer.

公开(公告)号：US11437442B2

公开(公告)日：2022-09-06

申请号：US16895768

申请日：2020-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： Kang Won Lee ,  Do Ik Kim ,  Choon Hyop Lee ,  Jang Hui Kim ,  Sang Chul Lee

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

Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.

公开(公告)号：US11372508B2

公开(公告)日：2022-06-28

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 ,  G06F3/041 ,  H01L27/32

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：US10936106B2

公开(公告)日：2021-03-02

申请号：US16361153

申请日：2019-03-21

Applicant: Samsung Display Co., Ltd.

Inventor： Kang Won Lee ,  Sang Chul Lee ,  Seung Hwan Chung ,  Young Sik Kim ,  Choon Hyop Lee ,  Yeon Sung Jung

IPC: G06F3/041

Abstract: A display device includes: a display panel including a display area in which an image is displayed and a non-display area surrounding the display area; an input sensor disposed on the display panel; and a pressure sensor sensing a pressure, wherein the input sensor includes a sensing base substrate extending in a first extending direction, the sensing base substrate including a first bending area bent along an outer edge of the sensing base substrate, wherein the pressure sensor is disposed on the first bending area of the sensing base substrate, and overlaps with the display area.

公开(公告)号：US10795476B2

公开(公告)日：2020-10-06

申请号：US16250914

申请日：2019-01-17

Applicant: Samsung Display Co., Ltd.

Inventor： Choon Hyop Lee ,  Ga Yeon Yun ,  Jeong Heon Lee

IPC: G06F3/044 ,  G06F3/041 ,  H01L27/32 ,  H01L51/00 ,  G09F9/30

Abstract: A touch sensor includes: a substrate having a flat area and a bent area bent from the flat area; a plurality of first sensing electrodes on the substrate and extending in a first direction; and a plurality of second sensing electrodes on the substrate and extending in a second direction crossing the first direction. The first sensing electrodes include a plurality of first sensing patterns arranged in the first direction and a plurality of first connecting patterns respectively connecting adjacent ones of first sensing patterns to each other, and the second sensing electrodes include a plurality of second sensing patterns arranged in the second direction. A first angle between a first one of the first connecting patterns in the flat area and the first direction is different from a second angle between a second one of the first connecting patterns in the bent area and the first direction.

公开(公告)号：US20190278409A1

公开(公告)日：2019-09-12

申请号：US16250914

申请日：2019-01-17

Applicant: Samsung Display Co., Ltd.

Inventor： Choon Hyop Lee ,  Ga Yeon Yun ,  Jeong Heon Lee

IPC: G06F3/041 ,  G06F3/044 ,  G09F9/30 ,  H01L27/32 ,  H01L51/00

Abstract: A touch sensor includes: a substrate having a flat area and a bent area bent from the flat area; a plurality of first sensing electrodes on the substrate and extending in a first direction; and a plurality of second sensing electrodes on the substrate and extending in a second direction crossing the first direction. The first sensing electrodes include a plurality of first sensing patterns arranged in the first direction and a plurality of first connecting patterns respectively connecting adjacent ones of first sensing patterns to each other, and the second sensing electrodes include a plurality of second sensing patterns arranged in the second direction. A first angle between a first one of the first connecting patterns in the flat area and the first direction is different from a second angle between a second one of the first connecting patterns in the bent area and the first direction.

公开(公告)号：US10268241B2

公开(公告)日：2019-04-23

申请号：US15434534

申请日：2017-02-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang Won Lee ,  Hee Woong Park ,  Young Seok Yoo ,  Jeong Heon Lee ,  Choon Hyop Lee ,  In Nam Lee ,  Hyun Jae Lee

IPC: G06F3/041 ,  G06F1/16

Abstract: A touch screen panel including a display panel; a first flexible circuit board including a first end connected to the display panel, the first flexible circuit board having at least one first opening; a touch panel disposed on the display panel and the first flexible circuit board; and a second flexible circuit board including a first end connected to the touch panel, the second flexible circuit board having at least one second opening corresponding to the at least one first opening.