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：US20220404931A1

公开(公告)日：2022-12-22

申请号：US17590009

申请日：2022-02-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ga Young KIM ,  Sang Hyun LIM

IPC: G06F3/044

Abstract: A touch member including: first and second electrodes in a touch sensor area; touch pad areas in a touch peripheral area; and routing lines in the touch peripheral area to connect the first and second electrodes with the touch pad areas, wherein the routing lines include a (1-1), (1-2), (2-1), and (2-2) routing line, the first electrode includes a (1-1) electrode having a first end not routing line, connected and a second end connected to the (1-1) routing line, and a (1-2) electrode having a first end connected to the (1-2) routing line and a second end not routing line connected, the second electrode includes a (2-1) electrode having a first end connected to the (2-1) routing line and a second end not routing line connected, and a (2-2) electrode having a first end not routing line connected and a second end connected to the (2-2) routing line.

公开(公告)号：US20220326813A1

公开(公告)日：2022-10-13

申请号：US17850892

申请日：2022-06-27

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：US20220229517A1

公开(公告)日：2022-07-21

申请号：US17713085

申请日：2022-04-04

Applicant: Samsung Display Co, Ltd.

Inventor： Do Ik KIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.

公开(公告)号：US20210263630A1

公开(公告)日：2021-08-26

申请号：US17248878

申请日：2021-02-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jang Hui KIM ,  Ga Young KIM ,  Jung Mok PARK ,  A Ra JO

IPC: G06F3/041

Abstract: A display device, includes: a display panel having short sides and long sides; and a touch sensor on the display panel and including a sensing area and a non-sensing area around the sensing area, wherein the touch sensor includes: a first touch electrode unit including a plurality of first touch electrodes in the sensing area, arranged in a direction in which the short sides of the display panel extend, and each including a first opening; a second touch electrode unit including a plurality of second touch electrodes in the sensing area, arranged in a direction in which the long sides of the display panel extend, and each including a second opening; and a pressure sensor including a strain gauge, at least a part of the strain gauge being located in the sensing area.

公开(公告)号：US20210004120A1

公开(公告)日：2021-01-07

申请号：US17026333

申请日：2020-09-21

Applicant: Samsung Display Co., Ltd.

Inventor： Do Ik KIM ,  Sang Hyun LIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

IPC: G06F3/041 ,  G06F3/044

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

公开(公告)号：US20200333910A1

公开(公告)日：2020-10-22

申请号：US16921764

申请日：2020-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hak KIM ,  Do Ik KIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.

公开(公告)号：US20200142563A1

公开(公告)日：2020-05-07

申请号：US16583840

申请日：2019-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Ga Young KIM ,  In Young HAN

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

Abstract: A touch sensor including a base layer, a first touch electrode member including first touch electrodes disposed on the base layer, arranged along a first direction, electrically connected to each other, and each including a first opening, a second touch electrode member including second touch electrodes disposed on the base layer, arranged along a second direction, and electrically connected to each other, a conductive member including conductive patterns electrically connected to each other along the first direction and respectively disposed in the first openings, a contact electrode connected to one end of the first touch electrode member and including lower and upper contact electrodes, and a connection pattern connected to an outermost first conductive pattern, the connection pattern including the same conductive layer as the upper contact electrode, in which the upper contact electrode includes an electrode opening, and a portion of the connection pattern is disposed therein.

公开(公告)号：US20180329555A1

公开(公告)日：2018-11-15

申请号：US15978355

申请日：2018-05-14

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 ,  H01L27/32 ,  G06F3/044 ,  G06F3/047 ,  G09G3/3208

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.