公开(公告)号：US10678356B2

公开(公告)日：2020-06-09

申请号：US14981486

申请日：2015-12-28

申请人： LG Display Co., Ltd.

发明人： Taegung Kim ,  Sangho Yu ,  Hyuckjun Kim

IPC分类号： G06F3/041 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3275

摘要： A disclosed touch sensor integrated display device includes a display panel; and a data drive circuit configured to set a gate-source voltage to turn on a driving TFT in the display panel by applying a data voltage for touch sensing to a gate node of the driving TFT through a data line and a reference voltage to a source node of the driving TFT through a sensing line, during a reset period based on a scan control signal and a sensing control signal, and to output a sensing value by sensing a change in a source-drain current of the driving TFT caused by touch input, during a sensing period subsequent to the reset period.

公开(公告)号：US20190206961A1

公开(公告)日：2019-07-04

申请号：US16223051

申请日：2018-12-17

申请人： LG Display Co., Ltd.

发明人： Kyung-Rok Kim ,  Taegung Kim ,  SeungTae Kim

IPC分类号： H01L27/32

CPC分类号： H01L27/3255 ,  G09G3/32 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2310/08 ,  H01L27/3246 ,  H01L27/3276

摘要： Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a substrate including a display area including a plurality of pixel areas and a non-display area surrounding the display area, first to nth gate lines passing through the display area of the substrate, first to mth data lines passing through the display area of the substrate, first to mth pixel driving power lines passing through the display area of the substrate, a plurality of pixels provided in at least one pixel area of the substrate and connected to an adjacent gate line, an adjacent data line, and an adjacent pixel driving power line, and at least one data buffer chip provided in the display area of the substrate and connected to a corresponding data line of the first to mth data lines. Accordingly, a constant data voltage charging rate of each of the pixels is maintained regardless of a distance between a data driving circuit and each of the pixels.

公开(公告)号：US20190206324A1

公开(公告)日：2019-07-04

申请号：US16223039

申请日：2018-12-17

申请人： LG Display Co., Ltd.

发明人： Taegung Kim ,  Kyung-Rok Kim ,  Juyoung Noh

IPC分类号： G09G3/3241 ,  G09G3/32

CPC分类号： G09G3/3241 ,  G09G3/32 ,  G09G2310/027 ,  G09G2310/061 ,  G09G2310/08

摘要： Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a plurality of pixels provided in a display area of a substrate and connected to a data line, a clock line, and a pixel driving power line. The plurality of pixels each include a pixel driving chip connected to the data line, the clock line, and the pixel driving power line to sequentially output a driving current through a plurality of output terminals thereof and a plurality of light emitting devices respectively connected to the plurality of output terminals. Accordingly, a gate driving circuit and a gate line connected to the gate driving circuit are removed from one end of a display panel and omitted, thereby minimizing the number of pad parts disposed in the display panel.

公开(公告)号：US11545095B2

公开(公告)日：2023-01-03

申请号：US17112888

申请日：2020-12-04

申请人： LG Display Co., Ltd.

发明人： Junwoo Yun ,  Taegung Kim

IPC分类号： G09G3/3291 ,  G09G3/20 ,  G09G3/3233

摘要： One or more embodiments of the present disclosure provides a display device. The display device includes a display panel which includes a plurality of pixels; a threshold voltage sensing circuit which senses a threshold voltage of a light emitting diode included in the plurality of pixels, a data compensating circuit which corrects a data signal in accordance with a variation of the threshold voltage and accumulated data to generate a corrected data signal, and a data driver which generates a data voltage in accordance with the corrected data signal to output the data voltage to the display panel, in which the data compensating circuit periodically corrects the data signal in accordance with a look-up table in which a relationship of the variation of the threshold voltage and the accumulated data is described during an aging period to generate the corrected data signal. The display device according to the present disclosure improves an image quality of the display.

公开(公告)号：US10908747B2

公开(公告)日：2021-02-02

申请号：US16226278

申请日：2018-12-19

申请人： LG DISPLAY CO., LTD.

发明人： Taegung Kim ,  Kyung-Rok Kim

IPC分类号： G06F3/044 ,  G06F3/041 ,  G09G3/20 ,  G09G3/3275 ,  G09G3/32 ,  H01L27/32 ,  G09G3/3241 ,  H01L51/52 ,  G09G3/3225

摘要： A display apparatus including a substrate including a display area includes a plurality of pixel areas and a non-display area surrounding the display area, a plurality of pixels including a pixel driving chip provided in each of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, and a plurality of touch electrodes disposed in the display area to overlap two or more pixels. A first pixel driving chip of two or more pixel driving chips overlapping a corresponding touch electrode of the plurality of touch electrodes is connected to the corresponding touch electrode.

公开(公告)号：US10818241B2

公开(公告)日：2020-10-27

申请号：US16226432

申请日：2018-12-19

申请人： LG DISPLAY CO., LTD.

发明人： Kyung-Rok Kim ,  Taegung Kim ,  Haejin Park ,  EunJi Park ,  Kimin Son

IPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/3275 ,  G06F3/044 ,  H01L27/32 ,  G06F3/041

摘要： The display apparatus may include gate lines passing through a display area of a substrate, data lines passing through the display area of the substrate, pixel driving power lines passing through the display area of the substrate, a plurality of pixels having a pixel driving chip mounted on at least one pixel area defined on the substrate and connected and connected to an adjacent gate line and data line and a light emission part connected to the pixel driving chip, a gate driving chip array part mounted in a non-display area of the substrate and connected to the gate lines, and a data driving chip array part mounted in the non-display area of the substrate and connected to the data lines.

公开(公告)号：US10522081B2

公开(公告)日：2019-12-31

申请号：US15827669

申请日：2017-11-30

申请人： LG DISPLAY CO., LTD.

发明人： Kyungrok Kim ,  Taegung Kim ,  Hyunwook Kim

IPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G3/32 ,  G09G3/36 ,  H01L27/32 ,  G09G3/20

摘要： An electroluminescent display and a driving device of the electroluminescent display are discussed. The electroluminescent display includes first and second active areas divided from a screen, a first timing controller configured to transmit the pixel data of the first active area to be displayed on the first active area to a first driving circuit writing pixel data to pixels of the first active area, a second timing controller configured to transmit the pixel data of the second active area to be displayed on the second active area to a second driving circuit writing pixel data to pixels of the second active area, and a bridge circuit configured to distribute an input image to the first and second timing controllers, detect a logo data block from the input image, and transmit the logo data block to the first and second timing controllers.

公开(公告)号：US10055057B2

公开(公告)日：2018-08-21

申请号：US15235096

申请日：2016-08-11

申请人： LG Display Co., Ltd.

发明人： Taegung Kim ,  Seungtae Kim ,  Junghyeon Kim

IPC分类号： G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3225 ,  G09G3/3266 ,  H01L27/32

CPC分类号： G06F3/0418 ,  G02F1/13338 ,  G02F1/13624 ,  G02F2001/13685 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2320/029 ,  H01L27/3223 ,  H01L27/323

摘要： A touch sensor integrated display device and a method for driving the same are disclosed. The touch sensor integrated display device includes a display panel, in which a pixel array is divided into a plurality of touch blocks, each touch block includes pixels displaying an input image and a sensing target dummy pixel sensing a touch input, and the sensing target dummy pixel includes a dummy driving TFT configured to control a source-drain current based on a gate-source voltage, and a panel drive circuit, which in a touch sensing period, supplies a scan control signal and a sensing control signal to the sensing target dummy pixel and sets the gate-source voltage to turn on the dummy driving TFT by applying a touch driving data voltage to a gate node of the dummy driving TFT and applying a reference voltage to a source node of the dummy driving TFT.

公开(公告)号：US11036339B2

公开(公告)日：2021-06-15

申请号：US16038890

申请日：2018-07-18

申请人： LG DISPLAY CO., LTD.

发明人： Taegung Kim ,  Kyungrok Kim ,  Juyoung Noh

IPC分类号： G06F3/044 ,  G06F3/041 ,  G09G3/3275 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3291

摘要： A touch sensor-integrated display device includes a display panel with a pixel array divided into a plurality of touch blocks, each touch block having a plurality of pixels for displaying an input image and at least one touch pixel for sensing touch input; a data drive circuit that applies a charging voltage to the touch pixel in each touch block through a touch sensing line and then senses an electrical charge discharged from the touch pixel and outputs the sensing result as a touch sensing value, wherein a signal line commonly connected to the pixels and the touch pixel in each touch block is used as the touch sensing line; and a timing controller that detects touch input based on the touch sensing value.

公开(公告)号：US10593261B2

公开(公告)日：2020-03-17

申请号：US15782469

申请日：2017-10-12

申请人： LG Display Co., Ltd.

发明人： Taegung Kim ,  Kyungrok Kim ,  Jinhan Yoon

IPC分类号： G09G3/3225 ,  H01L27/32 ,  G09G3/20

摘要： A display device and a driving method of the display device are disclosed. The display device includes a display panel including a plurality of pixels, wherein each of the pixels is composed of three sub-pixels among a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel, an image processing unit configured to change a color combination on a time axis in at least one of the pixels, and render sub-pixel data of an input image in the color combination, and a display panel driving circuit configured to write data received from the image processing unit to the pixels.