公开(公告)号：US12159572B2

公开(公告)日：2024-12-03

申请号：US18416688

申请日：2024-01-18

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung Seo ,  Juhyun Nam ,  Yongmin Ha

IPC: G09G3/32 ,  H01L25/16 ,  H01L27/12

Abstract: Discussed is a display device in which a photo transistor that senses light from a light-emitting element is disposed in a separate wiring substrate from a panel unit in which the light-emitting element is disposed. Thus, the photo transistor is used as a component of a compensation unit that compensates for a difference between luminance of pixels based on a sensing result of the light from the light-emitting element.

公开(公告)号：US09837444B2

公开(公告)日：2017-12-05

申请号：US14953764

申请日：2015-11-30

Applicant: LG Display Co., Ltd.

Inventor： Youngmin Jeong ,  Seunghwan Shin ,  Daeyoung Seo ,  Soyoung Lee

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: H01L27/124 ,  G02F1/134363 ,  G02F1/136286 ,  G02F2001/13629 ,  G02F2001/136295 ,  G02F2201/40 ,  H01L27/1237 ,  H01L27/1259 ,  H01L27/1262 ,  H01L27/1288

Abstract: A display device is described that has reduced resistance in one or more of the gate, common, data electrical lines that control the operation of the pixels of the display device. Reduced resistance is achieved by forming additional metal and/or metal-alloy layers on the gate, common, and/or data lines in such a manner so that the cross-sectional area of those lines is increased. As a consequence, each such line is formed so as to be thicker than could otherwise be achieving without causing defects in the rubbing process of an alignment layer. Additionally, no widening of these lines is needed, thus preserving the aspect ratio of the device. The gate insulating and semiconducting layers that in part make up the thin film transistors that help control the operation of the pixels of the device may also be designed to take into account the increased thickness of the lines.

公开(公告)号：US12118949B2

公开(公告)日：2024-10-15

申请号：US17973288

申请日：2022-10-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Daeyoung Seo ,  Insu Hwang ,  Hyunsuk Lee

IPC: G09G3/3291 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G3/3225 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/0666 ,  G09G2330/021

Abstract: Embodiments of the disclosure relate to a display panel, a display device, and a display driving method. Specifically, there may be provided a display panel including a plurality of pixels arranged in a matrix form, each of the plurality of pixels including N subpixels arranged in a first direction and having different colors, wherein N is 3 or 4 and a plurality of sensing lines disposed in a second direction between the plurality of pixels and configured to sense characteristic values for a plurality of subpixels electrically connected thereto, wherein the N subpixels are disposed so that subpixels of a same color are symmetrical with respect to the sensing line.

公开(公告)号：US20220208878A1

公开(公告)日：2022-06-30

申请号：US17517676

申请日：2021-11-03

Applicant: LG Display Co., Ltd.

Inventor： Hun Jang ,  Daeyoung Seo ,  Soyoung Lee

IPC: H01L27/32

Abstract: A light emitting display device comprises a subpixel having a light emitting element disposed in a light emission area on a substrate and a circuit area in which a circuit for driving the light emitting element is disposed, a gate line disposed in the circuit area in a first direction, and at least one power line disposed in a second direction crossing the first direction, the at least one power line including a first power bridge line and a second power bridge line which are spaced apart from each other in the first direction.

公开(公告)号：US10204930B2

公开(公告)日：2019-02-12

申请号：US15801120

申请日：2017-11-01

Applicant: LG Display Co., Ltd.

Inventor： Youngmin Jeong ,  Seunghwan Shin ,  Daeyoung Seo ,  Soyoung Lee

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1343

Abstract: A display device is described that has reduced resistance in one or more of the gate, common, data electrical lines that control the operation of the pixels of the display device. Reduced resistance is achieved by forming additional metal and/or metal-alloy layers on the gate, common, and/or data lines in such a manner so that the cross-sectional area of those lines is increased. As a consequence, each such line is formed so as to be thicker than could otherwise be achieving without causing defects in the rubbing process of an alignment layer. Additionally, no widening of these lines is needed, thus preserving the aspect ratio of the device. The gate insulating and semiconducting layers that in part make up the thin film transistors that help control the operation of the pixels of the device may also be designed to take into account the increased thickness of the lines.

公开(公告)号：US12014687B2

公开(公告)日：2024-06-18

申请号：US17978005

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung Seo ,  YoungIn Jang

IPC: G09G3/3266 ,  G09G3/20 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G3/2092 ,  G11C19/28 ,  G09G2300/0852 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2310/08

Abstract: Disclosed is a gate driving circuit comprising a plurality of stage circuits dependently connected to each other and configured to output ‘j’ output signals ('j′ is an integer of 2 or more), wherein each of the plurality of stage circuits includes a logic controller for controlling a voltage of each of first and second nodes, and an output circuit unit for outputting each of ‘j’ clock signals as the ‘j’ output signal in response to the voltage of the first node, wherein the output circuit unit includes ‘j’ output buffers for outputting each of the ‘j’ clock signals as the ‘j’ output signal through an output node in response to the voltage of the first node, and a capacitor prepared between the first node and the output node of some of the ‘j’ output buffers.

公开(公告)号：US11825695B2

公开(公告)日：2023-11-21

申请号：US17390227

申请日：2021-07-30

Applicant: LG Display Co., Ltd.

Inventor： Soyoung Lee ,  Hun Jang ,  Daeyoung Seo

IPC: H01L29/08 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131

Abstract: A pixel is discussed, which is disposed in a pixel area defined by a gate line, a data line and a pixel power line, and includes a light emission portion and a pixel circuit, wherein the pixel circuit can include a protrusion electrode protruded from the gate line along a length direction of the data line, and first and second thin film transistors disposed in parallel between the light emission portion and the gate line, using the protrusion electrode as a gate electrode.

公开(公告)号：US20200074947A1

公开(公告)日：2020-03-05

申请号：US16522266

申请日：2019-07-25

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung Seo ,  Joon Heo ,  YoungMin Jeong ,  SeungHwan Shin

IPC: G09G3/36 ,  H01L27/144 ,  G02F1/133 ,  G02F1/1368 ,  G02F1/1362 ,  G09G3/3225

Abstract: A display device includes a sensing storage line disposed in a first direction; a sensing data line disposed in a second direction; pixel thin film transistors which includes a first gate electrode connected to a gate line, a first source electrode connected to a data line, and a first drain electrode spaced apart from the first source electrode; and sensor thin film transistors which include a second gate electrode connected to the sensing storage line, a second source electrode electrically connected to the sensing data line, and a second drain electrode spaced apart from the second source electrode, wherein the second drain electrode may be electrically connected to the first drain electrode to share a pixel storage capacitor.

公开(公告)号：US12085817B2

公开(公告)日：2024-09-10

申请号：US17390521

申请日：2021-07-30

Applicant: LG Display Co., Ltd.

Inventor： Daeyoung Seo ,  Hun Jang ,  Soyoung Lee

IPC: G02F1/1345 ,  G02F1/01 ,  G09G3/3225 ,  H10K59/131

CPC classification number: G02F1/13452 ,  G02F1/0123 ,  G02F1/13454 ,  G02F1/13456 ,  G09G3/3225 ,  H10K59/131

Abstract: A display device according to an example includes a first power sharing line disposed to be parallel with a first direction, first and second pixels disposed along a second direction crossing the first direction with the first power sharing line interposed therebetween, and a second power sharing line disposed to be parallel with the first power sharing line with any one of the first and second pixels interposed therebetween.

公开(公告)号：US11023060B2

公开(公告)日：2021-06-01

申请号：US16223025

申请日：2018-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungHwan Shin ,  YoungMin Jeong ,  Daeyoung Seo ,  Soyoung Lee

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  G02F1/1362

Abstract: A display device having an open area and a non-open area surrounding the open area includes a pixel electrode and a common electrode disposed in the open area; a gate line disposed to extend in a first direction in the non-open area surrounding the open area and transmitting a gate signal to the pixel electrode; a data line disposed to extend in a second direction in the non-open area and transmitting a data signal to the pixel electrode; a plurality of sensing lines disposed in the non-open area and transmitting a common voltage or a touch scan signal to the common electrode; and a photo touch sensor disposed in the non-open area and electrically connected to one of the plurality of sensing lines.