公开(公告)号：US11842690B2

公开(公告)日：2023-12-12

申请号：US17880734

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Bonghyun You ,  Changnoh Yoon ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.

公开(公告)号：US11410607B2

公开(公告)日：2022-08-09

申请号：US17306259

申请日：2021-05-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jinyoung Roh ,  Hongsoo Kim ,  Sehyuk Park ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: An organic light emitting diode display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. Each pixel includes a driving transistor, a compensating transistor including first and second compensating sub-transistors coupled in series between a gate node and a drain of the driving transistor, a storage capacitor, and an organic light emitting diode. The panel driver calculates an average representative gray level of input image data in a plurality of frame periods, determines a voltage level of a node controlling voltage based on the average representative gray level, and provides the node controlling voltage to each of the plurality of pixels to control a voltage of a node between the first and second compensating sub-transistors.

公开(公告)号：US11302259B2

公开(公告)日：2022-04-12

申请号：US17143191

申请日：2021-01-07

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Bonghyun You ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US10789906B2

公开(公告)日：2020-09-29

申请号：US15006000

申请日：2016-01-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Junhyun Park ,  Jonghee Kim ,  Sunghwan Kim ,  Jaekeun Lim ,  Chongchul Chai

IPC: G11C19/00 ,  G09G3/36 ,  G11C19/28

Abstract: A gate driving circuit includes a plurality of driving stages, wherein an ith (where i is a natural number of 2 or more) driving stage among the plurality of driving stages includes: a output unit outputting an ith output signal including a high voltage generated based on a clock signal in response to a low voltage at a Q-node; a stabilization unit providing the low voltage to the Q-node in response to a switching signal applied to an A-node after the ith output signal is outputted; and an inverter unit outputting the switching signal for controlling the stabilization unit to the A-node.

公开(公告)号：US09741306B2

公开(公告)日：2017-08-22

申请号：US14835573

申请日：2015-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： Ji-Sun Kim ,  Jonghee Kim ,  Youngwan Seo ,  Jaekeun Lim ,  Chongchul Chai

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0219

Abstract: According to an embodiment, a display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and a plurality of data lines, a gate driver driving the plurality of gate lines, a data driver configured to output a plurality of data output signals to the plurality of data lines in response to a data signal, a demultiplexer circuit configured to provide the plurality of data output signals to the plurality of data lines in response to a first selection signal and a second selection signal; and a timing controller configured to provide the data signal to the data driver, outputting the first selection signal and the second selection signal, and controlling the gate driver.

公开(公告)号：US20160203762A1

公开(公告)日：2016-07-14

申请号：US14834015

申请日：2015-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jonghee KIM ,  Youngwan Seo ,  Jaekeun Lim ,  Chongchul Chai

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3291 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2330/028

Abstract: A gate driving circuit includes a first driving stage driving a first gate line included in a display panel. The first driving stage includes a first output transistor outputting a first carry signal on the basis of a first clock signal in response to a voltage of a first node, a second output transistor outputting a first gate signal on the basis of the first clock signal in response to the voltage of the first node, a first control transistor applying a second clock signal to a second node, a second control transistor applying a start signal to the first node in response to a voltage of the second node, and a third control transistor applying a first discharge voltage to the first node in response to the first carry signal.

Abstract translation: 栅极驱动电路包括驱动包括在显示面板中的第一栅极线的第一驱动级。 第一驱动级包括响应于第一节点的电压而基于第一时钟信号输出第一进位信号的第一输出晶体管，基于第一时钟信号输出第一栅极信号的第二输出晶体管 响应于第一节点的电压，向第二节点施加第二时钟信号的第一控制晶体管，响应于第二节点的电压将起始信号施加到第一节点的第二控制晶体管，以及第三控制晶体管 响应于第一进位信号将第一放电电压施加到第一节点。

公开(公告)号：US12165599B2

公开(公告)日：2024-12-10

申请号：US18407362

申请日：2024-01-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Bonghyun You ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US11567593B2

公开(公告)日：2023-01-31

申请号：US16573539

申请日：2019-09-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeonkyoo Kim ,  Dong Won Lee ,  Jaekeun Lim

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  G06F1/3234

Abstract: A display device includes a display panel that includes a plurality of pixels, a touch panel that includes a plurality of driving lines and a plurality of sensing lines, a display driver that drives the display panel at a first display frame rate in a normal driving mode, and that drives the display panel at a second display frame rate lower than the first display frame rate in a low power driving mode, and a touch controller that drives the touch panel with a mutual capacitance sensing method in the normal driving mode, and that drive the touch panel with a self capacitance sensing method in the low power driving mode.

公开(公告)号：US11514855B2

公开(公告)日：2022-11-29

申请号：US17219729

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Jaekeun Lim ,  Hongsoo Kim ,  Jinyoung Roh ,  Sehyuk Park ,  Hyojin Lee

IPC: G09G3/3258

Abstract: A display device includes a pixel, wherein the pixel includes a light emitting element, a first transistor connected to a first power line and the light emitting element and controlled by a voltage of a first node, a second transistor connected to a data line and the first transistor and controlled by an i-th scan signal, a third-first transistor connected to the first transistor and a second node and controlled by a first control signal, a third transistor connected to the second node and the first node and controlled by a second control signal, and a dummy transistor including a first electrode receiving a reference voltage, a second electrode connected to the second node, and a control electrode connected to an emission line.

公开(公告)号：US11468847B2

公开(公告)日：2022-10-11

申请号：US17217293

申请日：2021-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jiwoong Kim ,  Jaekeun Lim

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixels, a plurality of data lines extending in a first direction and coupled to the plurality of pixels, a plurality of first scan lines extending in a second direction different from the first direction and coupled to the plurality of pixels, and a plurality of second scan lines extending in the first direction and coupled to the plurality of first scan lines, a data driver which provides data voltages to the plurality of pixels through the plurality of data lines, and a scan driver which sequentially provides a scan signal to the plurality of pixels on a row-by-row basis through the plurality of second scan lines and the plurality of first scan lines. The data driver and the scan driver are implemented with a data-scan integration chip which outputs the data voltages and the scan signal.