公开(公告)号：US11425366B2

公开(公告)日：2022-08-23

申请号：US16815986

申请日：2020-03-11

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Seuk Yoo ,  Dong Joon Kwag ,  Hyung Jin Kim ,  Seong Heon Cho

IPC: H04N17/04 ,  G09G3/00 ,  G09G3/3225

Abstract: A display device relates to a test image measuring device, and includes a housing including one side in which an opening is defined, and a reflector provided to be inclined by a predetermined angle from another side of the housing facing the opening, where a display device including a display unit and an imaging unit is provided above the opening, and a test image displayed from the display unit is photographed by the imaging unit through the reflector.

公开(公告)号：US11222603B2

公开(公告)日：2022-01-11

申请号：US16817403

申请日：2020-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon Cho ,  Hae Kwan Seo ,  Seung Jae Lee

IPC: G09G3/3291 ,  G09G3/3258

Abstract: A display device and a driving method thereof are provided. The display device includes a display including a pixel including a double gate transistor and a light emitting diode, a power supply for supplying power to the display, a current sensor for sensing a current flowing in the display or in the light emitting diode, and a gate voltage controller for providing a bias voltage signal to one gate electrode of the double gate transistor.

公开(公告)号：US10650715B2

公开(公告)日：2020-05-12

申请号：US16238518

申请日：2019-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon Cho

IPC: G09G3/00 ,  H01L27/12 ,  G09G3/20 ,  G01R31/50 ,  G09G3/3266 ,  G09G3/36 ,  G09G3/3275

Abstract: A short circuit detector includes a first transistor connected between a first portion of a data line and a second portion of the data line and including a gate electrode connected to a first node; a second transistor connected between a first voltage source and the first node and including a gate electrode configured to receive a short-circuit test signal; a third transistor connected between a second node included in the second portion and a third node and including a gate electrode configured to receive the short-circuit test signal; a fourth transistor connected between a second voltage source and the first node and including a gate electrode connected to the third node; and a fifth transistor connected to the first node and a third voltage source and including a gate electrode connected to the third node in common with the gate electrode of the third transistor.

公开(公告)号：US11636810B2

公开(公告)日：2023-04-25

申请号：US17666425

申请日：2022-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon Cho ,  Hae-Kwan Seo

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A scan driver includes: a plurality of stages, each stage including: a logic circuit configured to transfer an input signal to a first node in response to a first clock signal, and to bootstrap the first node in response to a second clock signal; a carry output circuit configured to output the second clock signal as a carry signal that is provided as the input signal for a next stage in response to a voltage of the bootstrapped first node; and a masking controller configured to receive a masking signal and the carry signal, and to output the masking signal as a scan signal provided to a pixel row corresponding to the each stage in response to the carry signal.

公开(公告)号：US11244629B2

公开(公告)日：2022-02-08

申请号：US16888465

申请日：2020-05-29

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon Cho ,  Hae-Kwan Seo

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A scan driver includes: a plurality of stages, each stage including: a logic circuit configured to transfer an input signal to a first node in response to a first clock signal, and to bootstrap the first node in response to a second clock signal; a carry output circuit configured to output the second clock signal as a carry signal that is provided as the input signal for a next stage in response to a voltage of the bootstrapped first node; and a masking controller configured to receive a masking signal and the carry signal, and to output the masking signal as a scan signal provided to a pixel row corresponding to the each stage in response to the carry signal.

公开(公告)号：US12211882B2

公开(公告)日：2025-01-28

申请号：US17501945

申请日：2021-10-14

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Heon Cho

IPC: H01L27/15 ,  G09G3/32

Abstract: A display device includes a first display panel; and a second display panel, wherein the first display panel includes a first substrate including a first region and a second region that is thinner than the first region, a first scan driver positioned on one edge of the first region, a second scan driver positioned in the second region, and a plurality of pixels connected to the first scan driver and the second scan driver by a scan line, the second display panel includes a second substrate including a first region and a second region that is thinner than the first region, a first scan driver positioned on one edge of the first region, and a plurality of pixels connected to the first scan driver by a scan line.

公开(公告)号：US12051373B2

公开(公告)日：2024-07-30

申请号：US18306211

申请日：2023-04-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seong Heon Cho ,  Hae-Kwan Seo

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2310/0278 ,  G09G2310/0294

Abstract: A scan driver includes: a plurality of stages, each stage including: a logic circuit configured to transfer an input signal to a first node in response to a first clock signal, and to bootstrap the first node in response to a second clock signal; a carry output circuit configured to output the second clock signal as a carry signal that is provided as the input signal for a next stage in response to a voltage of the bootstrapped first node; and a masking controller configured to receive a masking signal and the carry signal, and to output the masking signal as a scan signal provided to a pixel row corresponding to the each stage in response to the carry signal.

公开(公告)号：US11545060B2

公开(公告)日：2023-01-03

申请号：US17118188

申请日：2020-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Soon Dong Kim ,  Joon Chul Goh ,  Bong Hyun You ,  Byung Ki Chun ,  Seong Heon Cho

IPC: G09G5/06 ,  G09G3/00

Abstract: A display device includes: a plurality of pixels; a first pixel unit comprising a first portion of the plurality of pixels; a second pixel unit comprising a second portion of the plurality of pixels; and a data driver configured to supply a data voltage to the first pixel unit and the second pixel unit, wherein the data driver is configured to generate a data voltage to be supplied to the first pixel unit based on different gamma voltages even when the same grayscale is expressed according to a driving method, and the second pixel unit is configured to be driven or not driven according to the driving method.