公开(公告)号：US20240224631A1

公开(公告)日：2024-07-04

申请号：US18529058

申请日：2023-12-05

Applicant: LG Display Co., Ltd.

Inventor： DeukHo Yeon ,  KiTae Kim ,  SunWook Ko

IPC: H10K59/126 ,  H10K59/121 ,  H10K59/122

CPC classification number: H10K59/126 ,  H10K59/1213 ,  H10K59/122

Abstract: A display device includes a substrate including an active area including a plurality of pixels and a non-active area located to surround the active area; a first thin film transistor disposed on the substrate and a second thin film transistor disposed to be spaced apart from the first thin film transistor; a planarization layer covering the first thin film transistor and the second thin film transistor; a first shielding layer disposed on the planarization layer; a light emitting element including an anode disposed on the planarization layer to be spaced apart from the first shielding layer; and a second shielding layer disposed on the anode. Accordingly, reliability of the display device can be improved by increasing a light shielding area in the display device.

公开(公告)号：US08877573B2

公开(公告)日：2014-11-04

申请号：US14047501

申请日：2013-10-07

Applicant: LG Display Co., Ltd.

Inventor： KiTae Kim

IPC: H01L21/268 ,  H01L29/66 ,  H01L21/02 ,  H01L27/12

CPC classification number: H01L21/02675 ,  H01L27/124 ,  H01L27/1281 ,  H01L27/1288 ,  H01L29/66765

Abstract: A thin film transistor substrate and a method for manufacturing the same are discussed, in which the thin film transistor comprises a gate line and a data line arranged on a substrate to cross each other; a gate electrode connected with the gate line below the gate line; an active layer formed on the gate electrode; an etch stopper formed on the active layer; an ohmic contact layer formed on the etch stopper; source and drain electrodes formed on the ohmic contact layer; and a pixel electrode connected with the drain electrode. It is possible to prevent a crack from occurring in the gate insulating film during irradiation of the laser and prevent resistance of the gate electrode from being increased.

Abstract translation: 讨论薄膜晶体管基板及其制造方法，其中薄膜晶体管包括布置在基板上以彼此交叉的栅极线和数据线; 栅极电极，与栅极线下方的栅极线连接; 形成在栅电极上的有源层; 形成在有源层上的蚀刻停止层; 形成在蚀刻停止器上的欧姆接触层; 源极和漏极形成在欧姆接触层上; 以及与漏电极连接的像素电极。 可以防止在激光照射期间在栅极绝缘膜中发生裂纹，并且防止栅电极的电阻增加。

公开(公告)号：US11056509B2

公开(公告)日：2021-07-06

申请号：US16529424

申请日：2019-08-01

Applicant: LG Display Co., Ltd.

Inventor： Soyeon Je ,  KiTae Kim

IPC: H01L29/08 ,  H01L29/786 ,  H01L31/0232 ,  H01L51/40 ,  H01L21/84 ,  H01L27/12 ,  H01L27/32 ,  H01L29/417 ,  H01L29/423

Abstract: A display device includes a substrate; a buffer layer disposed on the substrate; a first thin-film transistor comprising a first active layer made of a low-temperature poly-silicon (LTPS), a first gate electrode overlapping with the first active layer with the first gate insulating layer and the second gate insulating layer therebetween, and a first source electrode and a first drain electrode electrically connected to the first active layer; and a second thin-film transistor comprising a second active layer made of an oxide semiconductor, a second gate electrode overlapping with the second active layer with the second gate insulating layer therebetween, and a second source electrode and a second drain electrode electrically connected to the second active layer. The first gate electrode of the first thin-film transistor and the second gate electrode of the second thin-film transistor may be disposed on the second gate insulating layer.

公开(公告)号：US10388219B2

公开(公告)日：2019-08-20

申请号：US15634736

申请日：2017-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： JunHo Lee ,  SeungChan Choi ,  SungBin Ryu ,  KiTae Kim ,  Siu Yoon

IPC: G09G3/3225 ,  G09G3/3233

Abstract: Provided is an organic light emitting display (OLED) device that can include a timing controller configured to generate control signals to be applied to a plurality of pixels, each pixel including a pixel driving circuit. An adjusted initialization voltage is input to a circuit driving circuit of the OLED device during an initialization period. Thus, a delay of a current flowing in an organic light emitting diode can be improved such that a flicker phenomenon can be suppressed or minimized.

公开(公告)号：US20240222463A1

公开(公告)日：2024-07-04

申请号：US18514318

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

Inventor： DeukHo Yeon ,  SunWook Ko ,  KiTae Kim

IPC: H01L29/49 ,  H01L29/786 ,  H10K59/124

CPC classification number: H01L29/4908 ,  H01L29/78648 ,  H10K59/124 ,  H01L29/7869

Abstract: Disclosed is a thin film transistor and a display device including the same. The thin film transistor includes a first buffer layer; a lower gate electrode on the first buffer layer; a second buffer layer on the lower gate electrode; an active layer on the second buffer layer and including a source region, a drain region, and a channel region between the source region and the drain region; a gate insulating layer on the active layer; and an upper gate electrode on the gate insulating layer. At least one of the upper gate electrode and the lower gate electrode includes a plurality of layers, and a work function of a layer adjacent to the active layer is greater than a work function of a layer far from the active layer, among the plurality of layers.

公开(公告)号：US10916218B2

公开(公告)日：2021-02-09

申请号：US15634576

申请日：2017-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： KiTae Kim ,  SeungChan Choi ,  JunHo Lee ,  SungBin Ryu ,  Siu Yoon

IPC: G09G5/10 ,  G09G3/3266 ,  G09G3/3233

Abstract: Provided is an organic light emitting display. The organic light emitting display can include a gate driving circuit configured to supply a gate signal through each of a plurality of gate lines connected to a display panel, and a luminance control unit between the gate driving circuit and the display panel and electrically connected to the plurality of gate lines and a power supply line. A gate signal is supplied to the pixels in a distributed manner during a plurality of refresh periods. Therefore, it is possible to reduce a luminance decrease in the pixels during the entire refresh period.