公开(公告)号：US20240248563A1

公开(公告)日：2024-07-25

申请号：US18595419

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LIM ,  Ga Young KIM ,  Young Min PARK ,  Hyun Jee JEON

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/0446 ,  G06F3/046

Abstract: A display device includes a display unit having pixels, a touch sensing unit including touch electrodes disposed on the display unit, and a touch driver configured to supply a touch driving signal to the plurality of touch electrodes and receive a touch sensing signal from the touch electrodes. The touch driver supplies a first touch driving signal having a first phase to one or more first touch electrodes, and supplies a second touch driving signal having a second phase opposite to the first phase to one or more second touch electrodes, at least a part of which is disposed across a specific point from the first touch electrodes. The touch driver receives a first touch sensing signal having the first phase from at least one of the first touch electrodes, and receives a second touch sensing signal having the second phase from at least one of the second touch electrodes.

公开(公告)号：US20230315239A1

公开(公告)日：2023-10-05

申请号：US18099268

申请日：2023-01-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Jee JEON ,  Sang Hyun LIM

IPC: G06F3/044 ,  G06F3/041 ,  H10K59/40 ,  H10K59/80

CPC classification number: G06F3/0446 ,  G06F3/0445 ,  G06F3/04164 ,  G06F3/0412 ,  H10K59/40 ,  H10K59/8791 ,  G06F2203/04111 ,  G09G3/3233

Abstract: A touch sensor includes first sensor patterns, second sensor patterns, a conductive line, and a temperature sensing electrode set. The first sensor patterns are electrically connected in a first direction. The second sensor patterns are electrically insulated from first sensor patterns and are electrically connected in a second direction different from the first direction. The conductive line is electrically connected to at least one of the first sensor patterns or at least one of the second sensor patterns. The temperature sensing electrode set is positioned between two of the first sensor patterns, is positioned between two of the second sensor patterns, or is positioned between the conductive line and at least one of the first sensor patterns and the second sensor patterns. The temperature sensing electrode set includes a first electrode and a second electrode spaced from each other.

公开(公告)号：US20220334700A1

公开(公告)日：2022-10-20

申请号：US17545452

申请日：2021-12-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LIM ,  Ga Young KIM ,  Young Min PARK ,  Hyun Jee JEON

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046

Abstract: A display device includes a display unit having pixels, a touch sensing unit including touch electrodes disposed on the display unit, and a touch driver configured to supply a touch driving signal to the plurality of touch electrodes and receive a touch sensing signal from the touch electrodes. The touch driver supplies a first touch driving signal having a first phase to one or more first touch electrodes, and supplies a second touch driving signal having a second phase opposite to the first phase to one or more second touch electrodes, at least a part of which is disposed across a specific point from the first touch electrodes. The touch driver receives a first touch sensing signal having the first phase from at least one of the first touch electrodes, and receives a second touch sensing signal having the second phase from at least one of the second touch electrodes.

公开(公告)号：US20240160314A1

公开(公告)日：2024-05-16

申请号：US18446679

申请日：2023-08-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Jee JEON ,  Sang Hyun LIM

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0446

Abstract: A display device includes a display layer, a touch layer including a plurality of driving electrodes and a plurality of sensing electrodes, and a touch driving circuit supplying touch driving signals to the plurality of driving electrodes, receiving touch signals from the plurality of sensing electrodes, and generating a touch sensing signal including first and second touch sensing signals. The touch driving circuit receives one of the touch signals, detects first sensed voltages of the one touch signal every first cycle of the first touch sensing signal to calculate a phase delay amount of the one touch signal, delays a phase of the second touch sensing signal based on the phase delay amount, calculates second sensed voltages of the one touch signal every second cycle of the second touch sensing signal different from the first cycle, and recognizes a touch input based on the second sensed voltages.

公开(公告)号：US20230036586A1

公开(公告)日：2023-02-02

申请号：US17681122

申请日：2022-02-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Jee JEON ,  Sang Hyun LIM

IPC: G06F3/044 ,  H01L27/32

Abstract: Provided is a touch sensing unit comprises a first sensor group extending in a first direction and including a plurality of sensor electrodes; a second sensor group extending in the first direction and including the plurality of sensor electrodes; a first peripheral electrode electrically connected to the first sensor group; and a second peripheral electrode electrically connected to the second sensor group, wherein an area of the first sensor group is smaller than an area of the second sensor group in a plan view, and an area of the first peripheral electrode is greater than an area of the second peripheral electrode in the plan view.