公开(公告)号：US20150279259A1

公开(公告)日：2015-10-01

申请号：US14541022

申请日：2014-11-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae-Gwang Jang ,  Seokha Hong ,  Byungsun Kim ,  Sangik Lee

IPC: G09G3/18

CPC classification number: G09G3/3648 ,  G09G3/2022 ,  G09G3/2081 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/028 ,  G09G2340/0435

Abstract: According to some embodiments of the present invention, there is provided a liquid crystal display device including a display panel configured to receive a plurality of gate signals and a plurality of data voltages and to display an image based on a plurality of frames, a timing controller configured to generate a data control signal and a plurality of vertical start signals corresponding to the frames, a gate driving unit configured to output a plurality of gate signals in response to a vertical start signal according to each frame, and a data driving unit configured to generate the data voltages in response to the data control signal, wherein the timing controller is configured to set activation times of the vertical start signals corresponding to the frames differently to allow the frames to have different frequencies.

Abstract translation: 根据本发明的一些实施例，提供一种液晶显示装置，包括：显示面板，被配置为接收多个栅极信号和多个数据电压，并且基于多个帧显示图像;定时控制器 被配置为产生对应于所述帧的数据控制信号和多个垂直起始信号;门驱动单元，被配置为响应于根据每个帧的垂直起始信号输出多个门信号;以及数据驱动单元，被配置为 响应于数据控制信号生成数据电压，其中定时控制器被配置为不同地设置与帧对应的垂直起始信号的激活时间，以允许帧具有不同的频率。

公开(公告)号：US12167640B2

公开(公告)日：2024-12-10

申请号：US17719556

申请日：2022-04-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seokha Hong ,  Joon-Chul Goh

IPC: H10K59/121 ,  H10K59/131

Abstract: Provided is a display device comprising a display panel including a plurality of pixels, one of the pixels includes a light emitting device, which is connected with a reference node to emit light, and a driving transistor connected between a power line, which is to receive a power supply voltage, and the reference node. a scan transistor, which is connected between a data line to receive a data signal and the driving transistor and receives a scan signal, a light receiving device, which is connected between a bias line to receive a bias voltage and the reference node, and receives the light, and a masking transistor which is connected between the reference node and the light receiving device and receives a masking signal.

公开(公告)号：US11798464B2

公开(公告)日：2023-10-24

申请号：US17900137

申请日：2022-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Young-Soo Hwang ,  Joon-Chul Goh ,  Dongjoon Kwag ,  Hyungjin Kim ,  Ji-Eun Park ,  Jaesung Bae ,  Seokha Hong

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/048

Abstract: A display device includes a degradation compensator, a controller, a data driver, and a display panel. The degradation compensator generates a first fitting function and a second fitting function based on image data, generates a compensation function through a harmonic mean of the first and second fitting functions, and generates a compensation value based on the compensation function. The controller receives the compensation value, and generates input image data to which the compensation value is applied. The data driver receives the input image data to which the compensation value is applied, and converts the input image data into a data voltage. The display panel includes pixels, in which each of the pixels includes a pixel circuit which receives the data voltage and a light-emitting element electrically connected to the pixel circuit.

公开(公告)号：US20220208054A1

公开(公告)日：2022-06-30

申请号：US17494792

申请日：2021-10-05

Applicant: Samsung Display Co., LTD.

Inventor： Seokha Hong

IPC: G09G3/20 ,  G06F3/14

Abstract: A display apparatus includes a plurality of display panels, a current sensor, a driving controller and a data driver. The current sensor is configured to sense a current of each of the display panels. The driving controller is configured to generate a compensation value of each of the display panels based on the current of each of the display panels and to generate a data signal of each of the display panels based on the compensation value. The data driver is configured to convert the data signal into a data voltage and to output the data voltage to each of the display panels.

公开(公告)号：US10803812B2

公开(公告)日：2020-10-13

申请号：US16120607

申请日：2018-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Seokha Hong ,  Nam-gon Choi ,  Moonshik Kang ,  Jaehoon Lee ,  Kyoungho Lim

IPC: G09G3/34 ,  G02F1/13357 ,  G02F1/1335 ,  G09G3/36

Abstract: A display device includes a display panel, a plurality of sensors, a signal control unit, and a backlight unit. A plurality of dimming regions is defined in the display panel. The signal control unit determines a plurality of representative luminance values corresponding to the plurality of dimming regions based on image data signals received from an external device and illuminance values of an external light measured by the plurality of sensors. The backlight unit provides lights having the representative luminance values to the display panel.

公开(公告)号：US10803807B2

公开(公告)日：2020-10-13

申请号：US16402125

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon Lee ,  Seokha Hong

IPC: G09G3/30 ,  G09G3/3258 ,  G09G3/3233 ,  H01L27/32 ,  H01L51/52

Abstract: A display device includes a display panel having a plurality of first and second scan lines, a plurality of data lines, a plurality of sensing lines, and a plurality of pixels, a data driver to apply a reference data voltage to the data lines and change the voltage level of the reference data voltage based on a compensating data, a scan driver to apply a first scan voltage to the first scan lines and a second scan voltage to the second scan lines, a timing controller to generate control signals that control the data driver and the scan driver, and a charging ratio compensator to sense a target voltage charged in a first pixel of the plurality of pixels to which the reference data voltage is provided during a predetermined target time, sense a charging voltage charged in the first pixel to which the reference data voltage is provided during a charging time, and output the compensating data that changes a voltage level of the reference data voltage applied to the pixel during the charging time until the difference between the target voltage and the charging voltage is substantially equal to or less than a predetermined reference value.

公开(公告)号：US20200184899A1

公开(公告)日：2020-06-11

申请号：US16790655

申请日：2020-02-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaehoon Lee ,  Bonghyun You ,  Soo-yeon Lee ,  Seokha Hong

IPC: G09G3/3266 ,  G11C19/28 ,  G09G3/36

Abstract: A gate driving circuit includes: a plurality of stages, a k-th stage from among the plurality of stages, the k-th stage including: an input circuit to receive a previous carry signal and to pre-charge a first node; a first output circuit to output a k-th gate signal; a second output circuit to output a k-th carry signal; a discharge hold circuit to transmit a clock signal to a second node, and to discharge the second node with a second low voltage; a first pull down circuit to discharge the k-th gate signal with a first low voltage, and to discharge the first node and the k-th carry signal with the second low voltage; and a discharge circuit for discharging the k-th carry signal with the second low voltage in response to the previous carry signal.

公开(公告)号：US09928791B2

公开(公告)日：2018-03-27

申请号：US14688702

申请日：2015-04-16

Applicant: Samsung Display Co., Ltd.

Inventor： Kuk-Hwan Ahn ,  Seokyun Son ,  Jai-Hyun Koh ,  Geunjeong Park ,  Dong-Won Park ,  Donghwa Shin ,  Won Sik Oh ,  Ik Soo Lee ,  Sang-Uk Lim ,  Seokha Hong

IPC: G09G3/36

CPC classification number: G09G3/3655 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/0218 ,  G09G2310/0235 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0247

Abstract: According to an embodiment, a display apparatus includes gate lines extending in a first direction, data lines extending in a second direction crossing the first direction, and pixels connected to the gate lines and the data lines. The pixels include pixels arranged in a k-th row and pixels arranged in a (k+1)th row disposed adjacent to the pixels arranged in the k-th row in the second direction. An (i+1)th gate line is disposed between the pixels in the k-th row and the pixels in the (k+1)th row. A first pixel arranged in a g-th column among the pixels arranged in the k-th row and a second pixel arranged in the g-th column among the pixels arranged in the (k+1)th row are connected to a j-th data line. The pixels arranged in the k-th row are alternately connected to an i-th gate line and the (i+1)th gate line.

公开(公告)号：US20170301279A1

公开(公告)日：2017-10-19

申请号：US15335210

申请日：2016-10-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Bonghyun You ,  Soo-yeon Lee ,  Seokha Hong

IPC: G09G3/20

CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G09G2310/0286 ,  G11C19/28

Abstract: A gate driving circuit includes: a plurality of stages, a k-th stage from among the plurality of stages, the k-th stage including: an input circuit to receive a previous carry signal and to pre-charge a first node; a first output circuit to output a k-th gate signal; a second output circuit to output a k-th carry signal; a discharge hold circuit to transmit a clock signal to a second node, and to discharge the second node with a second low voltage; a first pull down circuit to discharge the k-th gate signal with a first low voltage, and to discharge the first node and the k-th carry signal with the second low voltage; and a discharge circuit for discharging the k-th carry signal with the second low voltage in response to the previous carry signal.

公开(公告)号：US12057041B2

公开(公告)日：2024-08-06

申请号：US18164933

申请日：2023-02-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seokha Hong ,  Joon-Chul Goh

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2310/0275 ,  G09G2320/041 ,  G09G2330/028 ,  G09G2330/12

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller is configured to predict a panel temperature according to a position in the display panel based on input image data, to calculate a block current of a display block of the display panel and a panel resistance according to the position in the display panel based on the panel temperature, to calculate a voltage drop according to the position in the display panel based on the block current and the panel resistance and to compensate the input image data based on the voltage drop to generate a data signal. The data driver is configured to convert the data signal to a data voltage and to output the data voltage to the display panel.