公开(公告)号：US11636821B2

公开(公告)日：2023-04-25

申请号：US17170720

申请日：2021-02-08

Applicant: Samsung Display Co., Ltd.

Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Seung-Woon Shin ,  Woon-Rok Jang ,  In-Won Jin

IPC: G09G3/36

Abstract: A gate driving circuit includes: a plurality of driving stages, each driving stage configured to provide a gate signal to a corresponding gate line among a plurality of gate lines, wherein each of the plurality of driving stages includes: a first transistor electrically connected between a first clock terminal and a gate output terminal, the first transistor including a gate electrode electrically connected to a first node, the first clock terminal to receive a first clock signal; a second transistor configured to transmit a first carry signal to the first node; and a third transistor electrically connected between the first node and a first voltage terminal, the third transistor including a gate electrode electrically connected to the first voltage terminal, the first voltage terminal to receive a first voltage, wherein the gate output terminal is electrically connected to the corresponding gate line.

公开(公告)号：US11727835B2

公开(公告)日：2023-08-15

申请号：US17568289

申请日：2022-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Sung-Jae Park ,  Seung-Woon Shin ,  Ho Lee ,  Woon-Rok Jang

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2310/0275 ,  G09G2330/028

Abstract: A pixel circuit includes a light emitting element including a first electrode and a second electrode, a first switching element including a control electrode, a second switching element, a third switching element, a sensing resistor and a fourth switching element. The first switching element applies a first power voltage to the first electrode of the light emitting element. The second switching element applies a data voltage to the control electrode of the first switching element. The third switching element senses a signal of the first electrode of the light emitting element. The sensing resistor includes a first end connected to the second electrode of the light emitting element and a second end which receives a second power voltage. The fourth switching element senses a signal of the second electrode of the light emitting element.

公开(公告)号：US11657749B2

公开(公告)日：2023-05-23

申请号：US17647470

申请日：2022-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Sung-Jae Park ,  Seung-Woon Shin ,  Ho Lee ,  Woon-Rok Jang

IPC: G09G3/20 ,  G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/2007 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/0243 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes a controller, a panel driver, and a voltage generator. The controller generates a first control signal and generates image data and a second control signal in response to first and second image signals. The panel driver generates a driving signal in response to the image data and the first control signal to drive a display panel. The voltage generator generates a driving voltage to drive the display panel and changes a voltage level of the driving voltage in response to the second control signal. The first image signal corresponds to a second frame located before a third frame in which the driving voltage is changed. The second image signal corresponds to a first frame located before the second frame. The controller generates image data corresponding to the second frame in response to the first image signal and the second image signal.

公开(公告)号：US11640791B2

公开(公告)日：2023-05-02

申请号：US17665853

申请日：2022-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Sung-Jae Park ,  Seung-Woon Shin ,  Woon-Rok Jang

IPC: G09G3/3233

Abstract: A pixel includes a capacitor including a first electrode and a second electrode, a first transistor which generates a driving current, a second transistor which applies a data voltage to the first electrode of the capacitor, a third transistor which applies an initialization voltage to the second electrode of the capacitor, a fourth transistor which generates a leakage current in response to a dimming signal, and a light emitting element which emits light based on a residual driving current, where the residual driving current is obtained by subtracting the leakage current from the driving current.