公开(公告)号：US12216860B2

公开(公告)日：2025-02-04

申请号：US18093926

申请日：2023-01-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun Lim

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device including: a display panel in which a plurality of pixels are arranged in an image display area; a touch sensing unit disposed on a surface of the display panel, wherein the touch sensing unit is configured to sense a touch of an electronic pen; a display driving circuit configured to drive the pixels; and a touch sensing circuit configured to generate touch coordinate data by detecting a touch position of the electronic pen, wherein the touch sensing circuit is configured to drive pen touch electrodes so that the electronic pen is electromagnetically charged, and to recognize a touch and a touch position of the electronic pen by detecting a variation of a pen touch sensing signal of the pen touch electrodes.

公开(公告)号：US12147628B2

公开(公告)日：2024-11-19

申请号：US18153069

申请日：2023-01-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun Lim

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/046

Abstract: A display device includes a display panel including a plurality of pixels arranged in an image display area, a touch sensing unit disposed on a front surface of the display panel that senses a touch of a user's body part and a touch of an electronic pen, a display driving circuit that drives the pixels of the image display area, and a touch sensing circuit that generates touch coordinate data by detecting touch positions of the user's body part and the electronic pen. The touch sensing circuit senses the touch of the user's body part and allows the electronic pen to be charged during a touch electrode driving period by supplying touch driving signals generated by mixing driving signals of different frequency bands to touch electrodes during the touch electrode driving period.

公开(公告)号：US11797129B2

公开(公告)日：2023-10-24

申请号：US17443547

申请日：2021-07-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun Lim

IPC: G09G3/20 ,  G06F3/041 ,  G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/04184 ,  G06F3/03545 ,  G06F3/0441 ,  G06F3/0442 ,  G06F3/04162 ,  G09G3/20 ,  G06F2203/04108 ,  G09G2300/0842 ,  G09G2310/08

Abstract: A display device includes: a display unit that displays an image during a plurality of frames; and a sensor unit that overlaps the display unit, where the sensor unit includes a plurality of sensors. During a first period of an Nth frame of the plurality of frames, the plurality of sensors transmit a first signal. During a second period of the Nth frame, the plurality of sensors transmit a second signal. During a third period of an (N+1)th frame of the plurality of frames, the plurality of sensors transmit a third signal. During a fourth period of the (N+1)th frame, the plurality of sensors transmit a fourth signal. The first signal and the third signal have phases opposite to each other.

公开(公告)号：US11703961B2

公开(公告)日：2023-07-18

申请号：US17503826

申请日：2021-10-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Jee Jeon ,  Ga Young Kim ,  Young Min Park ,  Sang Hyun Lim

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/041 ,  H02J50/10 ,  H02J7/00 ,  G06F3/044

CPC classification number: G06F3/03545 ,  G06F3/0412 ,  G06F3/0445 ,  H02J7/0042 ,  H02J50/10

Abstract: A display device including: a display panel including an active area for displaying an image and a non-active area adjacent to the active area; and a metal sheet layer on the display panel, wherein the metal sheet layer includes: a heat dissipator overlapping the active area; and a coil surrounding the heat dissipator and overlapping the non-active area.

公开(公告)号：US11696474B2

公开(公告)日：2023-07-04

申请号：US16916821

申请日：2020-06-30

Applicant: Samsung Display Co., LTD.

Inventor： Sang Hyun Lim ,  Dong Gyun Ra

IPC: H10K59/131 ,  H10K50/844

CPC classification number: H10K59/131 ,  H10K50/844

Abstract: A display device includes, among other things, a pad area having a pattern that may reduce the distance gap between the signal lines cause by the contour changes of the signal lines. A corresponding print circuit board may also include a similar pattern to assimilate the distance gap between the lead wires. The pad and print circuit board may contact through anisotropic conductive film.

公开(公告)号：US11650695B2

公开(公告)日：2023-05-16

申请号：US17682350

申请日：2022-02-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Hyun Lim

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046 ,  H01L27/32 ,  G06F3/0354

CPC classification number: G06F3/04166 ,  G06F3/046 ,  G06F3/0412 ,  G06F3/0446 ,  H01L27/323 ,  G06F3/03545 ,  G06F2203/04106 ,  G06F2203/04111

Abstract: A display device including: a display unit having a plurality of pixels; a plurality of touch electrodes disposed on the display unit; a touch line connected to a first end of each of the plurality of touch electrodes; a common voltage line spaced apart from the plurality of touch electrodes; and a plurality of switching elements connected between the common voltage line and a second end of each of the plurality of touch electrodes.

公开(公告)号：US11550425B2

公开(公告)日：2023-01-10

申请号：US17827227

申请日：2022-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun Lim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3225 ,  G09G5/12 ,  H01L27/32

Abstract: A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.

公开(公告)号：US11442573B2

公开(公告)日：2022-09-13

申请号：US17367417

申请日：2021-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun Lim

IPC: G06F3/041

Abstract: A display device includes a display part and a sensor part overlapping the display part. During a first period, sensors in a first area of the sensor part are configured to transmit a first uplink signal. During the first period, sensors in a second area of the sensor part are configured to transmit a first inversion signal with respect to the first uplink signal. During a second period after the first period, sensors in a third area of the sensor part are configured to transmit a second uplink signal. During the second period, sensors in a fourth area of the sensor part are configured to transmit a second inversion signal with respect to the second uplink signal. The first area at least partially overlaps the fourth area. The second area at least partially overlaps the third area.

公开(公告)号：US20220155895A1

公开(公告)日：2022-05-19

申请号：US17532918

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik KIM ,  Ga Young Kim ,  Sang Hyun Lim ,  Young Sik Kim ,  Sang Chul Lee ,  Hwan Hee Jeong

IPC: G06F3/041 ,  G09G3/3208 ,  G06F3/047 ,  H01L27/32 ,  G06F3/044

Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

公开(公告)号：US11320944B2

公开(公告)日：2022-05-03

申请号：US17030376

申请日：2020-09-24

Applicant: Samsung Display Co., Ltd.

Inventor： Gwang Bum Ko ,  Ga Young Kim ,  Sang Hyun Lim

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor includes: a sensing area including a first sensing area positioned in a center portion and a second sensing area positioned outwardly therefrom in an edge portion; first sensor electrodes disposed in the first sensing area; and second sensor electrodes disposed in the second sensing area, the second sensor electrodes being configured to be separately activated from the first sensor electrodes. The first sensor electrodes are drivable to detect a touch input generated in the first sensing area in a first mode and the second sensor electrodes are drivable to detect a touch input generated in the second sensing area in a second mode.