公开(公告)号：US20220208104A1

公开(公告)日：2022-06-30

申请号：US17504999

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Minkyu Chang ,  Miyoung Son ,  Hongjae Shin

IPC: G09G3/3266 ,  G09G3/3258

Abstract: Disclosed are a gate driver circuit having a reduced size, and a display device including the same. The gate driver circuit includes a plurality of stage circuits. Each stage circuit supplies a gate signal to each of gate lines arranged in a display panel, and includes a M node, a Q node, a QH node, and a QB node. Each stage circuit includes a gate signal output module configured to operate based on a voltage level of the Q node or a voltage level of the QB node to output first to j-th gate signals based on first to j-th scan clock signals or a first low-potential voltage.

公开(公告)号：US11574598B2

公开(公告)日：2023-02-07

申请号：US17504999

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Minkyu Chang ,  Miyoung Son ,  Hongjae Shin

IPC: G09G3/3266 ,  G09G3/3258

Abstract: Disclosed are a gate driver circuit having a reduced size, and a display device including the same. The gate driver circuit includes a plurality of stage circuits. Each stage circuit supplies a gate signal to each of gate lines arranged in a display panel, and includes a M node, a Q node, a QH node, and a QB node. Each stage circuit includes a gate signal output module configured to operate based on a voltage level of the Q node or a voltage level of the QB node to output first to j-th gate signals based on first to j-th scan clock signals or a first low-potential voltage.

公开(公告)号：US11030958B2

公开(公告)日：2021-06-08

申请号：US16667810

申请日：2019-10-29

Applicant: LG Display Co., Ltd.

Inventor： Minkyu Chang

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

Abstract: A gate driver has a plurality of stages for outputting a gate signal for image at a time of display driving and outputting a gate signal for sensing at a time of sensing driving that follows the display driving. Each of the stages includes a pixel line selecting unit charging an M node with a first preceding stage carry signal according to a pixel line selection signal of a gate-on voltage during the display driving and charging a Q node with a first high-potential power supply voltage according to a sensing start signal of a gate-on voltage and a charged voltage of the M node during the sensing driving, and an output unit outputting a scan clock of a gate-on voltage as the gate signal for sensing while the Q node maintains a charged state on the sensing driving, wherein the first high-potential power supply voltage is higher at the time of the sensing driving than at the time of the display driving.

公开(公告)号：US11482179B2

公开(公告)日：2022-10-25

申请号：US17557122

申请日：2021-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Kwangsoo Kim ,  Yongho Kim ,  Minkyu Chang

IPC: G09G3/3266

Abstract: A gate driver circuit includes a plurality of stage circuits, each stage circuit supplies a gate signal to each of gate lines arranged in a display panel and includes a M node, a Q node, a QH node, and a QB node, and each stage circuit includes a line selector, a Q node controller, a Q node and QH node stabilizer, an inverter, a QB node stabilizer, a carry signal output module, and a gate signal output module, and a high voltage level period of a carry clock signal is set not to overlap with a high voltage level period of a first scan clock signal.

公开(公告)号：US09336713B2

公开(公告)日：2016-05-10

申请号：US13668038

申请日：2012-11-02

Applicant: LG Display Co., Ltd.

Inventor： Woojin Nam ,  Jongsik Shim ,  Hongjae Shin ,  Minkyu Chang

IPC: H05B37/02 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/067 ,  G09G2320/0223 ,  G09G2320/043 ,  G09G2320/045

Abstract: An organic light emitting display comprises: a driving TFT comprising a gate connected to a node B, a drain connected to an input terminal of high-potential cell driving voltage, and a source connected to the organic light emitting diode through a node C; a first switching TFT for switching the current path between a node A and the node B in response to a light emission control signal; a second switching TFT for initializing the node C in response to an initialization signal; a third switching TFT for initializing either the node A or the node B in response to the initialization signal; a fourth switching TFT for switching the current path between a data line and the node B in response to a scan signal; a compensation capacitor connected between the node B and the node C.

Abstract translation: 有机发光显示器包括：驱动TFT，包括连接到节点B的栅极，连接到高电位单元驱动电压的输入端的漏极和通过节点C连接到有机发光二极管的源极; 用于响应于发光控制信号切换节点A和节点B之间的电流路径的第一开关TFT; 用于响应于初始化信号初始化节点C的第二开关TFT; 用于响应于初始化信号初始化节点A或节点B的第三开关TFT; 第四开关TFT，用于响应于扫描信号切换数据线与节点B之间的电流路径; 连接在节点B和节点C之间的补偿电容器。

公开(公告)号：US09171503B2

公开(公告)日：2015-10-27

申请号：US14095773

申请日：2013-12-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Jihun Kim ,  Sangho Yu ,  Woojin Nam ,  Joongsun Yoon ,  Minkyu Chang

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0209 ,  G09G2320/045

Abstract: An organic light emitting display, a method for driving the same, and a method for manufacturing the same are discussed. The organic light emitting display according to an embodiment includes a panel including subpixels each having a compensation circuit including a reference voltage supply transistor, which receives a reference voltage and initializes a node of a gate electrode of a driving transistor using the reference voltage, a scan driver supplying a scan signal to scan lines of the panel, a data driver supplying a data signal to data lines of the panel, a timing controller controlling the scan driver and the data driver, and a reference voltage compensation unit which varies the reference voltage on each scan line and supplies the reference voltage to the subpixels.

Abstract translation: 讨论有机发光显示器，其驱动方法及其制造方法。 根据实施例的有机发光显示器包括具有子像素的面板，每个子像素具有补偿电路，该补偿电路包括参考电压供应晶体管，其接收参考电压并使用参考电压初始化驱动晶体管的栅电极的节点;扫描 提供扫描信号以对面板进行扫描的扫描信号的驱动器，向面板的数据线提供数据信号的数据驱动器，控制扫描驱动器和数据驱动器的定时控制器，以及参考电压补偿单元， 每个扫描线并将参考电压提供给子像素。

公开(公告)号：US10547316B2

公开(公告)日：2020-01-28

申请号：US15967035

申请日：2018-04-30

Applicant: LG Display Co., Ltd.

Inventor： Shinji Takasugi ,  Wooseok Choi ,  Minkyu Chang ,  Jaeyi Choi

IPC: G11C19/00 ,  H03K21/18 ,  G09G3/3241 ,  G09G3/36 ,  G11C19/28

Abstract: A gate shift register and an organic light emitting diode display including the same are disclosed. The gate shift register includes a first stage and a second stage that output image display gate pulses during an image data writing period and selectively output a sensing gate pulse in a vertical blanking interval in which image display data is not written. The first stage includes a node Q1, a node Qbo, a node M, a first sensing control block activating the node Q1, and a second sensing control block deactivating the node Qbo. The second stage includes a node Q2, a node Qbe, a third sensing control block activating the node Q2, and a fourth sensing control block deactivating the node Qbe. The first stage and the second stage share a partial circuit necessary for driving with each other.

公开(公告)号：US09779663B2

公开(公告)日：2017-10-03

申请号：US14864659

申请日：2015-09-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Jihun Kim ,  Sangho Yu ,  Woojin Nam ,  Joongsun Yoon ,  Minkyu Chang

IPC: G09G3/30 ,  G09G3/3258 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0209 ,  G09G2320/045

Abstract: An organic light emitting display, a method for driving the same, and a method for manufacturing the same are discussed. The organic light emitting display according to an embodiment includes a panel including subpixels each having a compensation circuit including a reference voltage supply transistor, which receives a reference voltage and initializes a node of a gate electrode or a drain electrode of a driving transistor using the reference voltage, a scan driver supplying a scan signal to scan lines of the panel, a data driver supplying a data signal to data lines of the panel, a timing controller that controls the scan driver and the data driver, and a reference voltage compensation unit supplying the reference voltage including a reverse voltage opposite a ripple generated in the reference voltage to the subpixels and cancel the ripple.