公开(公告)号：US09940889B2

公开(公告)日：2018-04-10

申请号：US15172060

申请日：2016-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Sung Hwan Kim ,  Kyoung Ju Shin

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G09G2330/021

Abstract: A gate driving circuit including a plurality of stage circuits to output a plurality of gate signals, a N-th stage circuit of the plurality of stage circuits includes: an output pull-up part including a control electrode connected to a first node, the first node being configured to have a potential increase in response to a (N−1)-th control signal received from a previous stage circuit of the N-th stage circuit, the output pull-up part to receive a clock signal to output a gate signal of the N-th stage circuit; a control node pull-up part to control the potential of the first node by using the (N−1)-th control signal; and a control node pull-down part to discharge the first node to a second low voltage according to a (N+1)-th control signal, wherein the output pull-up part is to discharge the gate signal of the N-th stage circuit in a (N+2)-th stage circuit.

公开(公告)号：US09767753B2

公开(公告)日：2017-09-19

申请号：US15135425

申请日：2016-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Keum Nam Kim ,  Sung Hwan Kim ,  Kyoung Ju Shin

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2230/00 ,  G09G2310/0216 ,  G09G2310/0224 ,  G09G2310/0251 ,  G09G2310/0286 ,  G11C19/287

Abstract: A scan driver includes a plurality of stages configured to supply scan signals to scan lines. An ith (i is a natural number) stage of the stages at one side of a panel includes: a first transistor connected between a first input terminal and a first node, and including a gate electrode connected to a second input terminal; a second transistor connected between a third input terminal and a first output terminal for outputting an ith scan signal of the scan signals, and including a gate electrode connected to the first node; a third transistor connected between the first output terminal and a first power input terminal configured to receive a first off voltage, and including a gate electrode connected to the second input terminal; and a first capacitor connected between the first node and the first output terminal.

公开(公告)号：US12260818B2

公开(公告)日：2025-03-25

申请号：US18195684

申请日：2023-05-10

Applicant: Samsung Display Co., LTD.

Inventor： Hayong Jung ,  Wook Lee ,  Sung Hwan Kim ,  Jaehoon Shin

IPC: G09G3/32 ,  G09G3/3233

Abstract: A sensing circuit includes a first line selection switch which connects a first sensing line to a sensing channel in a first sub-sensing period, a first noise selection switch which connects the first sensing line to a reference channel in a second sub-sensing period, a second line selection switch which connects a second sensing line to the sensing channel in the second sub-sensing period, and a second noise selection switch which connects the second sensing line to the reference channel in the first sub-sensing period. The sensing channel samples a first sensing voltage and noise of the first sensing line and the reference channel samples noise of the second sensing line in a first sampling period, and the sensing channel samples a second sensing voltage and noise of the second sensing line and the reference channel samples noise of the first sensing line in a second sampling period.

公开(公告)号：US12211431B2

公开(公告)日：2025-01-28

申请号：US18518608

申请日：2023-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim

IPC: G09G3/32

Abstract: A display device may include: a first pixel coupled to a first scan line, a first data line, and a first sensing line; a second pixel coupled to the first scan line, a second data line, and a second sensing line; a first sensing channel corresponding to the first pixel and including a first sampling capacitor; and a second sensing channel corresponding to the second pixel and including a second sampling capacitor. During a first period, the first sensing channel may store a first sampling signal in the first sampling capacitor while the first sensing line is coupled to the first sensing channel, and the second sensing channel may store a second sampling signal in the second sampling capacitor while the second sensing line is disconnected from the second sensing channel.

公开(公告)号：US12079416B2

公开(公告)日：2024-09-03

申请号：US18132850

申请日：2023-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Jae Lee ,  Sung Hwan Kim

IPC: G06F3/041 ,  G06F3/044 ,  H04B7/06 ,  H04B7/08

CPC classification number: G06F3/0416 ,  H04B7/0602 ,  H04B7/0834 ,  G06F3/04184 ,  G06F3/0445

Abstract: A display device includes: a display panel; a sensor substrate disposed on the display panel, the sensor substrate including a touch sensing area; sensing electrodes and antenna sets, disposed on the touch sensing area of the sensor substrate; and an input sensing circuit for sensing an external input based on sensing signals from the sensing electrodes. The input sensing circuit determines whether the external input occurred on an area in which the antenna sets are disposed in the touch sensing area, based on the sensing signals.

公开(公告)号：US12069914B2

公开(公告)日：2024-08-20

申请号：US17532253

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Won Kyu Kwak ,  Sang Moo Choi ,  Ji-Hyun Ka ,  Chul Kyu Kang ,  Dong Wook Kim ,  Won Se Lee

IPC: H01L27/12 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00

CPC classification number: H10K59/131 ,  H01L27/1222 ,  H01L27/124 ,  H10K59/121 ,  H10K71/00

Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.

公开(公告)号：US11862068B2

公开(公告)日：2024-01-02

申请号：US17586463

申请日：2022-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278

Abstract: A display device may include: a first pixel coupled to a first scan line, a first data line, and a first sensing line; a second pixel coupled to the first scan line, a second data line, and a second sensing line; a first sensing channel corresponding to the first pixel and including a first sampling capacitor; and a second sensing channel corresponding to the second pixel and including a second sampling capacitor. During a first period, the first sensing channel may store a first sampling signal in the first sampling capacitor while the first sensing line is coupled to the first sensing channel, and the second sensing channel may store a second sampling signal in the second sampling capacitor while the second sensing line is disconnected from the second sensing channel.

公开(公告)号：US11468845B2

公开(公告)日：2022-10-11

申请号：US17172375

申请日：2021-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hwan Kim ,  Eun Ju Kim

IPC: G09G3/3266 ,  G09G3/36

Abstract: A scan driver including a stage that includes: an input circuit controlling a voltage of a first node in response to signals at first and second input terminals; a first signal processing circuit controlling a voltage of a second node in response to the signal at the first input terminal and supplies a voltage of a first power to the second node in response to the signal at the second input terminal; a second signal processing circuit supplying a voltage of a second power to the first node in response to a signal at a third input terminal and the voltage of the second node; a first output circuit outputting the signal at the third input terminal as a first scan signal; and a second output circuit outputting a signal at a fourth input terminal as a second scan signal at a different time from the first scan signal.

公开(公告)号：US11030943B2

公开(公告)日：2021-06-08

申请号：US16697690

申请日：2019-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Sung Hwan Kim ,  Soo Hee Oh ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G09G3/3266 ,  G09G3/32

Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.

公开(公告)号：US10937369B2

公开(公告)日：2021-03-02

申请号：US16681265

申请日：2019-11-12

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Dae Hyun Kim ,  Sung Hwan Kim ,  Soo Hee Oh ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G09G3/3258

Abstract: Provided herein may be a stage and an emission control driver having the same. The stage may include an output unit configured to supply a voltage of a first or second power supply to a first output terminal depending on voltages of first and second nodes, an input unit configured to control the voltages of the second node and a third node, a first signal processing unit configured to control the voltage of the first node, and supply a voltage corresponding to the first node to a second output terminal, a second signal processing unit including a second capacitor coupled between the third node and a fifth node, the second signal processing unit being configured to control the voltage of the first node, and control a potential difference between opposite terminals of the second capacitor, and a third signal processing unit configured to control the voltage of the second node.