公开(公告)号：US11721290B2

公开(公告)日：2023-08-08

申请号：US17953290

申请日：2022-09-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae Sung Yu ,  Jae Hoon Park

IPC: G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0291 ,  G09G2330/021

Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes signal transmitters receiving a start pulse, a shift clock, a charge/discharge clock, a back-bias clock, a high-potential driving voltage, and a low-potential reference voltage, and connected in a cascade structure. An Nth (N is a positive integer) signal transmitter of the signal transmitters includes a first control node; a second control node; a first controller controlling charging and discharging of the first control node by using at least one transistor to which the back-bias clock is inputted; a second controller controlling charging and discharging of the second control node; a first output buffer outputting a carry pulse in response to voltages of the first and second control nodes; and a second output buffer outputting a gate pulse.

公开(公告)号：US11594180B1

公开(公告)日：2023-02-28

申请号：US17878603

申请日：2022-08-01

Applicant: LG Display Co., Ltd.

Inventor： Jae Sung Yu ,  Jae Hoon Park

IPC: G09G3/3233

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.

公开(公告)号：US11862086B2

公开(公告)日：2024-01-02

申请号：US17858904

申请日：2022-07-06

Applicant: LG Display Co., Ltd.

Inventor： Jae Hoon Park ,  Jae Sung Yu

IPC: G09G3/3233 ,  H10K59/124 ,  G09G3/20

CPC classification number: G09G3/3233 ,  H10K59/124 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/0294 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/0626

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.

公开(公告)号：US09720295B2

公开(公告)日：2017-08-01

申请号：US13627589

申请日：2012-09-26

Applicant: LG Display Co., Ltd.

Inventor： Young Ki Jung ,  Jae Sung Yu ,  In Hyuk Song ,  Jae Hoon Park ,  Han Seok Lee

IPC: G02F1/1345 ,  G02F1/1362 ,  G06F3/041 ,  H01L27/12 ,  G02F1/1333 ,  G06F3/044 ,  H01L21/768

CPC classification number: G02F1/13452 ,  G02F1/1345 ,  G02F1/13458 ,  G02F1/136227 ,  G02F2001/133357 ,  G02F2001/136231 ,  G02F2001/136236 ,  G02F2001/13629 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  H01L21/76802 ,  H01L27/1244 ,  H01L27/1288

Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.

公开(公告)号：US10437118B2

公开(公告)日：2019-10-08

申请号：US15647215

申请日：2017-07-11

Applicant: LG Display Co., Ltd.

Inventor： Young Ki Jung ,  Jae Sung Yu ,  In Hyuk Song ,  Jae Hoon Park ,  Han Seok Lee

IPC: G02F1/1345 ,  G02F1/1362 ,  G06F3/041 ,  H01L27/12 ,  G02F1/1333 ,  G06F3/044 ,  H01L21/768

Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.

公开(公告)号：US11620949B2

公开(公告)日：2023-04-04

申请号：US17878603

申请日：2022-08-01

Applicant: LG Display Co., Ltd.

Inventor： Jae Sung Yu ,  Jae Hoon Park

IPC: G09G3/3233

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.

公开(公告)号：US20170363903A1

公开(公告)日：2017-12-21

申请号：US15647215

申请日：2017-07-11

Applicant: LG Display Co., Ltd.

Inventor： Young Ki Jung ,  Jae Sung Yu ,  In Hyuk Song ,  Jae Hoon Park ,  Han Seok Lee

IPC: G02F1/1345 ,  G02F1/1362 ,  G06F3/044 ,  H01L27/12 ,  G02F1/1333 ,  H01L21/768 ,  G06F3/041

CPC classification number: G02F1/13452 ,  G02F1/1345 ,  G02F1/13458 ,  G02F1/136227 ,  G02F2001/133357 ,  G02F2001/136231 ,  G02F2001/136236 ,  G02F2001/13629 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  H01L21/76802 ,  H01L27/1244 ,  H01L27/1288

Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.

公开(公告)号：US11854480B2

公开(公告)日：2023-12-26

申请号：US17847988

申请日：2022-06-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae Sung Yu ,  Jae Hoon Park

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/043 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0238

Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.

公开(公告)号：US20130077034A1

公开(公告)日：2013-03-28

申请号：US13627589

申请日：2012-09-26

Applicant: LG Display Co., Ltd.

Inventor： Young Ki Jung ,  Jae Sung Yu ,  In Hyuk Song ,  Jae Hoon Park ,  Han Seok Lee

IPC: G02F1/1333 ,  H01J9/24

CPC classification number: G02F1/13452 ,  G02F1/1345 ,  G02F1/13458 ,  G02F1/136227 ,  G02F2001/133357 ,  G02F2001/136231 ,  G02F2001/136236 ,  G02F2001/13629 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  H01L21/76802 ,  H01L27/1244 ,  H01L27/1288

Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.

Abstract translation: 公开了一种LCD装置及其制造方法，其中通过使用半色调掩模的单个掩模处理同时形成钝化层和像素电极，因此制造效率增加，并且由于损耗而导致的不良接触 可以在焊盘区域中防止像素电极。 LCD装置包括：焊盘部分，其包括焊盘区域和接触区域。 LCD装置包括形成在焊盘区域中的像素焊盘，形成在接触区域中的像素条，以及将像素焊盘与像素条接触的桥接层。 桥接层形成为单层或多层，并由透明导电材料和不透明导电材料中的一种或多种形成。