公开(公告)号：US11094264B2

公开(公告)日：2021-08-17

申请号：US16683193

申请日：2019-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In

IPC: G09G3/3266

Abstract: A display device includes: a display panel having a plurality of pixels coupled to respective ones of first to nth (where n is a natural number of 1 or more) scan lines; a scan driver having a plurality of stages to supply a scan signal to the first to nth scan lines; and a timing controller to provide a clock signal to the scan driver, the timing controller controlling the scan driver by controlling an overdriving pulse of the clock signal. A first overdriving pulse of the clock signal corresponding to a first scan signal is different from an nth overdriving pulse of the clock signal corresponding to the nth scan signal.

公开(公告)号：US20200286434A1

公开(公告)日：2020-09-10

申请号：US16882384

申请日：2020-05-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Dong Gyu Kim ,  Bo Yong Chung

IPC: G09G3/3275 ,  G09G3/3233

Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.

公开(公告)号：US10665173B2

公开(公告)日：2020-05-26

申请号：US16557465

申请日：2019-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Dong Gyu Kim ,  Bo Yong Chung

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.

公开(公告)号：US20190385535A1

公开(公告)日：2019-12-19

申请号：US16557465

申请日：2019-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Dong Gyu Kim ,  Bo Yong Chung

IPC: G09G3/3275 ,  G09G3/3233

Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.

公开(公告)号：US12087212B2

公开(公告)日：2024-09-10

申请号：US18197848

申请日：2023-05-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai Jung In ,  Sung Min Son ,  Jae Jin Song ,  Jung Woo Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267

Abstract: A scan driver for driving a plurality of pixels, the scan driver including: stages connected to each other through carry lines, a first stage among the stages includes: a first scan circuit configured to generate a first scan signal in response to a stage select signal, and apply the first scan signal to pixels of the same row among the plurality of pixels; and a second scan circuit electrically connected to the first scan circuit to generate a carry signal overlapping the first scan signal, and configured to provide a second scan signal to the pixels of the same row in response to the carry signal, and the carry signal is output as the stage select signal to a second stage among the stages through one of the carry lines.

公开(公告)号：US12073795B2

公开(公告)日：2024-08-27

申请号：US18211548

申请日：2023-06-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Soon Gi Kwon

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/36

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A scan driver and a driving method thereof, in which the scan driver includes a plurality of stages outputting an output signal in response to clock signals supplied at a first frequency during a driving time of one frame, wherein the plurality of stages are supplied with the clock signals at a second frequency lower than the first frequency during a hold time of the one frame that is separate from the driving time of the one frame.

公开(公告)号：US11984083B2

公开(公告)日：2024-05-14

申请号：US17246328

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chae Han Hyun

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809 ,  G09G2320/0209 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.

公开(公告)号：US11955087B2

公开(公告)日：2024-04-09

申请号：US18081687

申请日：2022-12-15

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In

IPC: G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes scan lines, pixels electrically connected to the scan lines, and a scan driver including stages for supplying scan signals through the scan lines to the pixels. The stages include a stage that includes the following elements: a first node setting unit for setting a voltage of a first node; a second node setting unit for setting a voltage of a second node based on the voltage of the first node; a third node setting unit for setting a voltage of a third node based on the voltage of the second node; and an output unit for outputting a scan signal based on the voltage of the third node. Each of the first and third node setting units includes an N-type transistor. The scan driver further includes a first charge pump for supplying a first bias voltage to a back-gate electrode of the N-type transistor.

公开(公告)号：US11847956B2

公开(公告)日：2023-12-19

申请号：US18084224

申请日：2022-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2330/021

Abstract: A scan driver is disclosed that includes a plurality of stages for supplying scan signals to scan lines. A first stage among the stages includes: a first sub-stage circuit for generating a first scan signal, based on an input signal, a first clock signal, a second clock signal, a first power source, and a second power source; and a first charge pump circuit for supplying a bias voltage to the first sub-stage circuit, based on a third power source. The first sub-stage circuit includes: a first driver for controlling voltages of a first node and a second node, based on the input signal, the first clock signal, the second clock signal, the first power source, and the second power source; a second driver for controlling a voltage of an output node, based on the voltage of the first node, the voltage of the second node, the first power source, and the second power source; and an output unit for outputting the first scan signal through a first output terminal, based on the voltage of the output node, the first power source, and the second power source.

公开(公告)号：US11830412B2

公开(公告)日：2023-11-28

申请号：US17953288

申请日：2022-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.