公开(公告)号：US11594169B2

公开(公告)日：2023-02-28

申请号：US17561192

申请日：2021-12-23

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  Miso Kim

IPC: G09G3/30

Abstract: An electroluminescent display device includes a pixel circuit having transistors, and a gate driving circuit providing an emission signal, a first scan signal, and a second scan signal to the pixel circuit. The gate driving circuit includes an emission signal generating circuit for applying the emission signal to a gate electrode of at least one of the transistors, a first scan signal generating circuit for applying the first scan signal to a gate electrode of at least one of the transistors, and a second scan signal generating circuit for applying the second scan signal to a gate electrode of at least one of the transistors. The first scan signal generating circuit receives the emission signal and a voltage of a QB node of the second scan signal generating circuit, and the emission signal generating circuit and the first scan signal generating circuit include an n-type transistor and a p-type transistor.

公开(公告)号：US20220208075A1

公开(公告)日：2022-06-30

申请号：US17561192

申请日：2021-12-23

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  Miso Kim

IPC: G09G3/30

Abstract: An electroluminescent display device includes a pixel circuit having transistors, and a gate driving circuit providing an emission signal, a first scan signal, and a second scan signal to the pixel circuit. The gate driving circuit includes an emission signal generating circuit for applying the emission signal to a gate electrode of at least one of the transistors, a first scan signal generating circuit for applying the first scan signal to a gate electrode of at least one of the transistors, and a second scan signal generating circuit for applying the second scan signal to a gate electrode of at least one of the transistors. The first scan signal generating circuit receives the emission signal and a voltage of a QB node of the second scan signal generating circuit, and the emission signal generating circuit and the first scan signal generating circuit include an n-type transistor and a p-type transistor.

公开(公告)号：US09841833B2

公开(公告)日：2017-12-12

申请号：US14788631

申请日：2015-06-30

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  Myeonsik Lee ,  Hajin Yoo

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1362 ,  H01L29/786 ,  G02F1/1345 ,  G02F1/1343

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/13454 ,  G02F1/136227 ,  G02F1/136286 ,  G02F2001/133357 ,  G02F2001/134372 ,  G02F2001/13629 ,  G06F3/0416 ,  G06F3/044 ,  H01L29/78636

Abstract: A touch sensor integrated display device includes a plurality of common electrode blocks that defines a plurality of touch driving channels and a plurality of touch sensing channels. The touch driving channel is formed of a group of common electrode blocks electrically linked via a touch signal line placed under the layer of the common electrode blocks. The source/drain of the circuit TFTs provided in the non-display area is formed of the same metal layer of the touch signal line. The source/drain of the pixel TFTs provided in the display area is formed of a metal layer different from the metal layer of the touch signal line.

公开(公告)号：US11508312B2

公开(公告)日：2022-11-22

申请号：US17484556

申请日：2021-09-24

Applicant: LG Display Co., Ltd.

Inventor： Miso Kim ,  YongMin Ha ,  Hanwook Hwang ,  Minsu Kim

IPC: G09G3/30 ,  G09G3/3266 ,  H01L27/32

Abstract: An organic light emitting display device includes a first display area in which first sub-pixels are disposed, a second display area in which second sub-pixels are disposed in a density lower than the first display area, and a gate driver at least a part of which overlaps the second display area.

公开(公告)号：US20220199016A1

公开(公告)日：2022-06-23

申请号：US17536848

申请日：2021-11-29

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  WonKeun Park ,  Haejun Park ,  Jieun Kang ,  Youngtaek Hong

IPC: G09G3/3233

Abstract: The organic light emitting display device is driven to be divided into a refresh frame when the data voltage is programmed in the pixel and a reset frame when the anode electrode of the organic light emitting diode is reset, and the data voltage is maintained to a first level during the reset frame. Accordingly, a separate stage for applying an on bias stress is not provided so that the bezel may be reduced.

公开(公告)号：US11929024B2

公开(公告)日：2024-03-12

申请号：US17536848

申请日：2021-11-29

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  Wonkeun Park ,  Haejun Park ,  Jieun Kang ,  Youngtaek Hong

IPC: G09G3/3233

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

Abstract: The organic light emitting display device is driven to be divided into a refresh frame when the data voltage is programmed in the pixel and a reset frame when the anode electrode of the organic light emitting diode is reset, and the data voltage is maintained to a first level during the reset frame. Accordingly, a separate stage for applying an on bias stress is not provided so that the bezel may be reduced.

公开(公告)号：US11676528B2

公开(公告)日：2023-06-13

申请号：US17555799

申请日：2021-12-20

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  SeHwan Kim

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0233

Abstract: Provided is an electroluminescent display device. The electroluminescent display device includes a pixel circuit implemented with a plurality of transistors, and a gate driving circuit that provides a scan signal, an initialization signal, and an emission signal to the pixel circuit. The gate driving circuit includes a scan signal generating circuit that provides the scan signal to a gate electrode of at least one of the plurality of transistors, an initialization signal generating circuit that provides the initialization signal to a source electrode or a drain electrode of at least one of the plurality of transistors, and the emission signal generating circuit that provides an emission signal to the gate electrode of at least one of the plurality of transistors. The initialization signal generating circuit receives an output signal of the scan signal generating circuit and an output signal of the emission signal generating circuit.

公开(公告)号：US11663952B2

公开(公告)日：2023-05-30

申请号：US17551896

申请日：2021-12-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Minsu Kim ,  Jungchul Kim

IPC: G09G3/20

CPC classification number: G09G3/2074 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2320/064

Abstract: A display device include a substrate on which a plurality of first sub-pixels disposed in first columns and a plurality of second sub-pixels disposed in second columns are defined; a plurality of data lines disposed on one sides of the plurality of first sub-pixels and the other sides of the plurality of second sub-pixels; and a plurality of parking voltage lines disposed between the plurality of first sub-pixels and the plurality of second sub-pixels, wherein the plurality of parking voltage lines are configured to be electrically connected to some of the plurality of data lines. Accordingly, by applying the same parking voltage to the parking voltage lines and the data lines during a blank frame, flicker can be reduced.

公开(公告)号：US12205519B2

公开(公告)日：2025-01-21

申请号：US18309699

申请日：2023-04-28

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  SeHwan Kim

IPC: G09G3/30

Abstract: Provided is an electroluminescent display device. The electroluminescent display device includes a pixel circuit implemented with a plurality of transistors, and a gate driving circuit that provides a scan signal, an initialization signal, and an emission signal to the pixel circuit. The gate driving circuit includes a scan signal generating circuit that provides the scan signal to a gate electrode of at least one of the plurality of transistors, an initialization signal generating circuit that provides the initialization signal to a source electrode or a drain electrode of at least one of the plurality of transistors, and the emission signal generating circuit that provides an emission signal to the gate electrode of at least one of the plurality of transistors. The initialization signal generating circuit receives an output signal of the scan signal generating circuit and an output signal of the emission signal generating circuit.

公开(公告)号：US11651740B2

公开(公告)日：2023-05-16

申请号：US17544198

申请日：2021-12-07

Applicant: LG Display Co., Ltd.

Inventor： Minsu Kim ,  Ahram Nam ,  Donghoon Kim

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2340/0435

Abstract: A display device may include: a display panel with subpixels connected respectively to scan lines, sensing lines, and data lines; a gate driver configured to supply a scan signal to the scan lines during an active period and to supply a sensing signal to the sensing lines during a sensing period of a blank period; a data driver configured to supply a data voltage to the data lines; and a timing controller configured to control the gate and data drivers. The timing controller may determine the active period, blank period, and sensing period to be, respectively: a first active period, a first blank period, and a first sensing period for operating at the first frame rate; and a second active period, a second blank period, and a second sensing period for operating at the second frame rate. The first sensing period and the second sensing period have a same length.