公开(公告)号：US12087200B2

公开(公告)日：2024-09-10

申请号：US18379883

申请日：2023-10-13

申请人： LG DISPLAY CO., LTD.

发明人： Min Ho Cho ,  Moo Kyoung Hong

IPC分类号： G09G3/20

CPC分类号： G09G3/20 ,  G09G2310/0264 ,  G09G2330/021 ,  G09G2340/0407

摘要： A display device can include a display panel including at least one gate line; and a gate driving circuit to supply a scan signal to the at least one gate line, in which the gate driving circuit includes a plurality of scan signal output circuits configured to be sequentially turned on by a first carry signal input from previous stages to output the scan signal to a corresponding gate line and turned off by a second carry signal input from following stages. Also, the display device includes an output control circuit to transfer the first carry signal input to a scan signal output circuit to be turned off to a scan signal output circuit to be turned on, and transfer the second carry signal input from a stage following the scan signal output circuit to be turned off to a scan signal output circuit that outputs the first carry signal.

公开(公告)号：US12094425B2

公开(公告)日：2024-09-17

申请号：US18371747

申请日：2023-09-22

申请人： LG Display Co., Ltd.

发明人： Moo Kyoung Hong ,  Sin Kyun Park

IPC分类号： G09G3/3291

CPC分类号： G09G3/3291 ,  G09G2300/0408 ,  G09G2310/0251

摘要： A driving device of an electroluminescent display apparatus includes a pixel line determiner selecting a representative pixel line, disposed at a position at which an accumulation stress caused by an input image is largest, from among all pixel lines, a first sensing & driving circuit pre-sensing pixels of the representative pixel line for each color, an over driving control (ODC) controller selecting a color-based sample pixel characteristic value from among pixel characteristic values of the representative pixel line obtained through the pre-sensing and controlling a sensing priority of each color, based on a relative magnitude of a variation amount of the color-based sample pixel characteristic value, a second sensing & driving circuit performing ODC sensing on color pixels of all pixel lines, based on the sensing priority, and a compensation value generator updating compensation values of the color pixels, based on pixel characteristic values of the color pixels obtained through the ODC sensing, wherein a sensing data voltage supplied to each of the color pixels has multi-voltage levels, in a sensing period for the ODC sensing.

公开(公告)号：US10339873B2

公开(公告)日：2019-07-02

申请号：US15685956

申请日：2017-08-24

申请人： LG DISPLAY CO., LTD.

发明人： Moo Kyoung Hong

IPC分类号： G09G3/3275 ,  G09G3/3233 ,  G09G3/20 ,  G09G5/18

摘要： The present exemplary embodiments relate to devices and methods of processing data obtained by sensing a characteristic parameter of a sub pixel. A controller which receives a first clock signal and sensing data output from a data driver generates a second clock signal having a same phase as the first clock signal and outputs image data that is compensated based on the sensing data in accordance with the generated second clock signal to the data driver. By doing this, the controller generates the second clock signal using a part of the first clock signal output from the data driver and transmits the image data so that a skew or signal distortion which may be generated at the time of transmitting/receiving data is suppressed to improve sensing and compensation precision and suppress an image abnormality due to the sensing and compensation failure.

公开(公告)号：US09070315B2

公开(公告)日：2015-06-30

申请号：US13713684

申请日：2012-12-13

申请人： LG DISPLAY CO., LTD.

发明人： Moo Kyoung Hong ,  Kyoung Don Woo ,  Eun Jeong Jin

IPC分类号： G09G5/00

CPC分类号： G09G5/00 ,  G09G3/20 ,  G09G3/3611 ,  G09G3/3696

摘要： A display device is disclosed which includes: a control substrate configured to include a timing controller; a data connector configured to transfer signal from the control substrate to a display panel; a data driver mounted to the data connector; at least one outer connector disposed by at least one of both sides of the data connector and loaded with a driver chip, wherein the driver chip and the data driver are loaded on the outer connector and the data connector using the same bonding system, respectively.

摘要翻译： 公开了一种显示装置，包括：控制基板，被配置为包括定时控制器; 数据连接器，被配置为将信号从控制基板传送到显示面板; 安装到数据连接器的数据驱动器; 至少一个外部连接器，由数据连接器的两侧中的至少一个设置，并且装载有驱动器芯片，其中驱动器芯片和数据驱动器分别使用相同的接合系统加载在外部连接器和数据连接器上。

公开(公告)号：US20130147775A1

公开(公告)日：2013-06-13

申请号：US13713684

申请日：2012-12-13

申请人： LG DISPLAY CO., LTD.

发明人： Moo Kyoung Hong ,  Kyoung Don Woo ,  Eun Jeong Jin

IPC分类号： G09G5/00

CPC分类号： G09G5/00 ,  G09G3/20 ,  G09G3/3611 ,  G09G3/3696

摘要： A display device is disclosed which includes: a control substrate configured to include a timing controller; a data connector configured to transfer signal from the control substrate to a display panel; a data driver mounted to the data connector; at least one outer connector disposed by at least one of both sides of the data connector and loaded with a driver chip, wherein the driver chip and the data driver are loaded on the outer connector and the data connector using the same bonding system, respectively.

摘要翻译： 公开了一种显示装置，其包括：控制基板，被配置为包括定时控制器; 数据连接器，被配置为将信号从控制基板传送到显示面板; 安装到数据连接器的数据驱动器; 至少一个外部连接器，由数据连接器的两侧中的至少一个设置，并且装载有驱动器芯片，其中驱动器芯片和数据驱动器分别使用相同的接合系统加载在外部连接器和数据连接器上。

公开(公告)号：US11580911B2

公开(公告)日：2023-02-14

申请号：US17508651

申请日：2021-10-22

申请人： LG Display Co., Ltd.

发明人： Moo Kyoung Hong ,  Jong Won Yang

IPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/3208

摘要： A display device and a driving method thereof are discussed. The display device can include a display panel for displaying images, a scan driver for supplying scan signals to the display panel, and a gate compensation circuit. The gate compensation circuit is configured to respectively sense a first node voltage and a second node voltage from a first node controller and a second node controller of the scan driver, and change a turn-on duty ratio of the first node controller to the second node controller based on the sensed first node voltage and second node voltage.

公开(公告)号：US10424253B2

公开(公告)日：2019-09-24

申请号：US15682367

申请日：2017-08-21

申请人： LG DISPLAY CO., LTD.

发明人： Sangyong Kim ,  Moo Kyoung Hong

IPC分类号： G09G3/3275 ,  G09G3/36 ,  G09G3/3225

摘要： A display device and a power monitoring circuit. The power monitoring circuit monitors whether or not first power is ordinarily output from a power management integrated circuit (PMIC). When the first power is not ordinarily output, the power monitoring circuit outputs an error detection signal indicative of an abnormality in the PMIC to a main controller. The display device includes the power monitoring circuit. The operating state of the PMIC supplying power required for the driving of a display panel can be monitored.

公开(公告)号：US20240185804A1

公开(公告)日：2024-06-06

申请号：US18498510

申请日：2023-10-31

申请人： LG Display Co., Ltd.

发明人： Moo Kyoung Hong

IPC分类号： G09G3/3291

CPC分类号： G09G3/3291 ,  G09G2300/0828 ,  G09G2310/0272 ,  G09G2310/08

摘要： A display device including a display panel includes a sub-pixel connected to a data line and a reference line, and a data driver including a panel driving circuit and a panel sensing circuit, wherein during a first sensing operation of a ADC of the panel sensing circuit, the panel sensing circuit supplies a first reference voltage to the display panel through the reference line and converts a voltage that is sensed through the reference line in into a digital signal using the analog-to-digital converter, and during a second sensing operation of an element included in the sub-pixel, the panel sensing control circuit supplies a second reference voltage to the display panel through the reference line and the panel driving circuit supplies the data voltage to the display panel through the data lineoffset correction.

公开(公告)号：US10593241B2

公开(公告)日：2020-03-17

申请号：US15680916

申请日：2017-08-18

申请人： LG DISPLAY CO., LTD.

发明人： Moo Kyoung Hong ,  Kyungsu Lee ,  Sang Goo Kwon

IPC分类号： G09G3/00 ,  G09G3/3233 ,  G01R31/26 ,  G09G3/3225 ,  G09G3/3275

摘要： The present disclosure relates to a method for detecting a defect of a sensing transistor disposed in each sub pixel of an organic light emitting display device and extracting a coordinate of a sub pixel in which a defective sensing transistor is disposed. A defect detecting data voltage is applied to a data line after initializing a reference voltage line and a voltage of the reference voltage line is sensed during an interval in which the scan transistor is turned on and the sensing transistor is turned off to determine whether the sensing transistor is defective.