公开(公告)号：US10971064B2

公开(公告)日：2021-04-06

申请号：US16715999

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a display panel including a plurality of pixels configured to display an image, each of at least one of the plurality of pixels including a pixel circuit and a light emitting device connected to the pixel circuit, wherein the pixel circuit includes a driving transistor controlling a driving current flowing at the light emitting device, a data supply transistor selectively providing a data voltage to a first node which is a source electrode of the driving transistor, a first light emitting control transistor selectively connecting the first node to a second node which is an electrode of the light emitting device, a first capacitor connected between the second node and a fourth node which is a gate electrode of the driving transistor, and a second capacitor connected between the second node and a gate electrode of the data supply transistor.

公开(公告)号：US11749148B2

公开(公告)日：2023-09-05

申请号：US17537684

申请日：2021-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Seyong Lee ,  SungHyun Jang ,  JungWoo Han

IPC: G09G3/00 ,  G06F3/044 ,  H10K59/40 ,  H10K59/131 ,  G06F3/041 ,  H10K50/84 ,  H10K50/844

CPC classification number: G09G3/006 ,  G06F3/0412 ,  G06F3/0416 ,  H10K50/84 ,  G06F3/0446 ,  G09G2310/08 ,  H10K50/844 ,  H10K59/131 ,  H10K59/40

Abstract: A display apparatus according to an example embodiment may include: a substrate including a display area and a non-display area outside the display area; a plurality of pixels in the display area; a plurality of touch electrodes overlapping with the pixels in the display area; a gate driving circuit in the non-display area and connected to the touch electrodes via at least one gate driving line; and a touch inspection circuit in the non-display area and connected to the touch electrodes through at least one touch line, the touch inspection circuit including at least one touch inspection switch and a touch inspection control switch.

公开(公告)号：US11386842B2

公开(公告)日：2022-07-12

申请号：US17195125

申请日：2021-03-08

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a plurality of pixels configured to display an image, wherein the plurality of pixels is configured to be driven through a plurality of signals according to an initialization period, a programming period, a sampling period, and an emission period. The signals include a first scan signal having a high level in the initialization period and the sampling period, and having a low level in the programming period and the emission period; a second scan signal having a high level in the programming period and the sampling period, and having a low level in the initialization period and the emission period; and a voltage of a first electrode being dropped in synchronization with a falling time of the first scan signal of the initialization period.

公开(公告)号：US20200211452A1

公开(公告)日：2020-07-02

申请号：US16715999

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display apparatus includes a display panel including a plurality of pixels configured to display an image, each of at least one of the plurality of pixels including a pixel circuit and a light emitting device connected to the pixel circuit, wherein the pixel circuit includes a driving transistor controlling a driving current flowing at the light emitting device, a data supply transistor selectively providing a data voltage to a first node which is a source electrode of the driving transistor, a first light emitting control transistor selectively connecting the first node to a second node which is an electrode of the light emitting device, a first capacitor connected between the second node and a fourth node which is a gate electrode of the driving transistor, and a second capacitor connected between the second node and a gate electrode of the data supply transistor.

公开(公告)号：US11882720B2

公开(公告)日：2024-01-23

申请号：US17112696

申请日：2020-12-04

Applicant: LG Display Co., Ltd.

Inventor： Seung-Hee Kang ,  Seyong Lee ,  Hyun Kyung Lee ,  SeokYoung Lee

IPC: H10K50/842 ,  H10K50/844 ,  H10K59/122 ,  H10K59/124

CPC classification number: H10K50/8426 ,  H10K50/844 ,  H10K59/122 ,  H10K59/124

Abstract: Provided are an organic light-emitting panel and an organic light-emitting display device including the same. In the organic light-emitting panel, a planarization layer has at least one contact holes in an active area, and first inclination of a first side surface of the planarization layer, located in the non-active area and closest to a dam, with respect to the top surface of the substrate is smaller than a second inclination of a second side surface of the planarization layer, surrounding the contact hole, with respect to the top surface of the substrate. Due to the gentle inclination of the first side surface of the planarization layer, each of the connector electrode, the bank, and the first encapsulation layer disposed on the first side surface of the planarization layer may also have a gentle inclination, such that the second encapsulation layer material having high flowability may flow along the top surface of the first encapsulation layer to cover the surfaces of the planarization layer and the bank in the non-active area. Accordingly, the encapsulation ability of the encapsulation member in a non-active area is improved.

公开(公告)号：US11690276B2

公开(公告)日：2023-06-27

申请号：US17129071

申请日：2020-12-21

Applicant: LG Display Co., Ltd.

Inventor： Hyun Kyung Lee ,  Seyong Lee

IPC: H10K71/16 ,  C23C14/12 ,  C23C14/04 ,  H10K71/00

CPC classification number: H10K71/166 ,  C23C14/042 ,  C23C14/12 ,  H10K71/00

Abstract: Provided are a thin-film deposition mask assembly and a method of fabricating an organic light-emitting display panel using the same. A first mask includes a plurality of first openings disposed in odd columns and a plurality of second openings disposed in even columns. A single second opening disposed in an nth even column, among the plurality of second openings, is disposed between two first openings arranged in a first direction corresponding to row direction transverse to column direction and disposed in at least one column of (n−1)th and (n+1)th columns, among the plurality of first openings, where n is a natural number equal to or greater than 2. In some embodiments, the row direction and the column direction may be perpendicular to each other. The first mask is prevented from sagging.

公开(公告)号：US20210193030A1

公开(公告)日：2021-06-24

申请号：US17195125

申请日：2021-03-08

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a plurality of pixels configured to display an image, wherein the plurality of pixels is configured to be driven through a plurality of signals according to an initialization period, a programming period, a sampling period, and an emission period. The signals include a first scan signal having a high level in the initialization period and the sampling period, and having a low level in the programming period and the emission period; a second scan signal having a high level in the programming period and the sampling period, and having a low level in the initialization period and the emission period; and a voltage of a first electrode being dropped in synchronization with a falling time of the first scan signal of the initialization period.