公开(公告)号：US12288523B2

公开(公告)日：2025-04-29

申请号：US18368946

申请日：2023-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Taehoon Kim ,  Jin-Wook Yang ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3258

Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.

公开(公告)号：US12033566B2

公开(公告)日：2024-07-09

申请号：US18127341

申请日：2023-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Sehyuk Park ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08

Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.

公开(公告)号：US11972730B2

公开(公告)日：2024-04-30

申请号：US18126650

申请日：2023-03-27

Applicant: Samsung Display Co., Ltd.

Inventor： Donggyu Lee ,  Jin-Wook Yang ,  Jae-Hyeon Jeon

IPC: G09G5/00 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.

公开(公告)号：US11935453B2

公开(公告)日：2024-03-19

申请号：US17645081

申请日：2021-12-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Jinyoung Roh ,  Woomi Bae ,  Hae-Kwan Seo ,  Youngha Sohn ,  Jin-Wook Yang

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.

公开(公告)号：US11915639B2

公开(公告)日：2024-02-27

申请号：US18108626

申请日：2023-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Seon Young Choi ,  Sangan Kwon ,  Soon-Dong Kim ,  Jin-Wook Yang ,  Changnoh Yoon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021 ,  G09G2380/02

Abstract: A display panel of a display device is divided into a first display region and a second display region. The second display region includes a boundary region adjacent to the first display region and a non-boundary region opposite to the first display region with respect to the boundary region. The driving controller outputs the voltage control signal, such that the first voltage in a first high voltage level and the second voltage in a first low voltage level are generated when the first display region is driven. The driving controller outputs the voltage control signal, such that the first voltage in a second high voltage level lower than the first high voltage level and the second voltage in a second low voltage level higher than the first low voltage level are generated, when the non-boundary region of the second display region is driven.

公开(公告)号：US10679551B2

公开(公告)日：2020-06-09

申请号：US16028960

申请日：2018-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang ,  Soon-Dong Kim

IPC: G09G5/10 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/20 ,  G09G3/3208

Abstract: An organic light emitting display device includes a display panel including pixel groups, each including a plurality of sub-pixels for each of pixel rows. A gate driver is configured to sequentially provide an initialization signal to the pixel rows, to provide a first group gate signal to first pixel groups of the pixel groups, to provide a second group gate signal overlapping at least a part of the first group gate signal to second pixel groups of the pixel groups, to sequentially provide the first group gate signal to the pixel rows, and to sequentially provide the second group gate signal to the pixel rows. An emission control driver is configured to sequentially provide an emission control signal to the pixel rows. A data driver is configured to output a data voltage. A data divider is configured to selectively provide the data voltage to data lines connected to the sub-pixels.

公开(公告)号：US20170116913A1

公开(公告)日：2017-04-27

申请号：US15402089

申请日：2017-01-09

Applicant: Samsung Display Co., Ltd.

Inventor： Bon-Seog Gu ,  Jin-Wook Yang

IPC: G09G3/3208 ,  H01L51/52 ,  H01L27/32

CPC classification number: G09G3/3208 ,  G09G2300/0426 ,  H01L27/3241 ,  H01L51/524

Abstract: A display device includes: a display panel including: a display portion for displaying an image; and a first pad coupled with the display portion and for receiving an out signal from the display portion; a driver coupled with the display portion for supplying a driving signal to the display portion; a cover covering the display panel; and a connection unit coupling the first pad and the driver to each other to transmit the out signal to the driver, wherein at least a portion of the connection unit is in the cover.

公开(公告)号：US09514681B2

公开(公告)日：2016-12-06

申请号：US15160829

申请日：2016-05-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/045

Abstract: A pixel circuit for increasing accuracy of current sensing of an organic light-emitting diode (OLED) display is disclosed. In one aspect, the pixel circuit includes an OLED, a driving circuit, and first to third transistors. The driving circuit is configured to adjust a magnitude of a current flowing through the OLED based at least in part on a data signal received from a data line. The first transistor is configured to electrically connect the data line and a holding capacitor based at least in part on a scan signal. The second transistor is configured to electrically connect the holding capacitor and the driving circuit based at least in part on a write control signal. The third transistor is configured to electrically connect the data line and an anode electrode of the OLED based at least in part on a sensing control signal.

公开(公告)号：US20160019844A1

公开(公告)日：2016-01-21

申请号：US14708102

申请日：2015-05-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Wook Yang

IPC: G09G3/32 ,  G09G5/10 ,  G09G5/18

CPC classification number: G09G3/3233 ,  G09G2300/0443 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: An organic light emitting display includes: a first pixel; and a second pixel adjacent to the first pixel, the second pixel being configured to emit light at a different time from the first pixel, wherein the first pixel and the second pixel share a storage capacitor configured to store a voltage of a data signal.

Abstract translation: 有机发光显示器包括：第一像素; 以及与所述第一像素相邻的第二像素，所述第二像素被配置为在与所述第一像素不同的时间发光，其中所述第一像素和所述第二像素共享用于存储数据信号的电压的存储电容器。

公开(公告)号：US20150130859A1

公开(公告)日：2015-05-14

申请号：US14539948

申请日：2014-11-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/30 ,  G09G3/3208 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861

Abstract: An organic light emitting display includes pixels, a scan driver configured to supply a scan signal to a specific scan line during a third period of the sensing frame, and configured to sequentially supply scan signals to the scan lines during a sixth period of the sensing frame, a data driver configured to supply, to the data lines, a previous data signal corresponding to a gray scale according to the scan signal supplied to the specific scan line during the third period, and configured to supply a current data signal to the data lines to be synchronized with the scan signals supplied during the sixth period, and a compensation unit configured to extract the threshold voltage and mobility information of the driving transistor from pixels at a specific horizontal line and coupled to the specific scan line before the scan signal is supplied during the third period.

Abstract translation: 有机发光显示器包括像素，扫描驱动器，其被配置为在感测帧的第三周期期间将扫描信号提供给特定的扫描线，并且被配置为在感测帧的第六周期期间向扫描线顺序地提供扫描信号 ，数据驱动器，被配置为根据在第三时段期间提供给特定扫描线的扫描信号向数据线提供对应于灰度级的先前数据信号，并且被配置为将数据信号提供给数据线 与在第六周期期间提供的扫描信号同步，以及补偿单元，被配置为从提供扫描信号的特定水平线处的像素提取驱动晶体管的阈值电压和迁移率信息，并耦合到特定扫描线 在第三期间。