公开(公告)号：US12089453B2

公开(公告)日：2024-09-10

申请号：US17560642

申请日：2021-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： WonSang Ryu ,  SungSoo Shin ,  Youngjin Yi ,  Yubeen Lim ,  SangGul Lee

IPC: H10K59/126 ,  G09G3/3258 ,  H10K59/122

CPC classification number: H10K59/126 ,  H10K59/122 ,  G09G3/3258 ,  G09G2330/04

Abstract: A display apparatus includes a first pixel driving circuit, an electric field blocking layer on the first pixel driving circuit, a second pixel driving circuit on the electric field blocking layer, and a first display element and a second display element on the second pixel driving circuit, wherein each of the first pixel driving circuit and the second pixel driving circuit includes at least one thin film transistor, the first pixel driving circuit overlaps with the second pixel driving circuit, the first display element is connected with the first pixel driving circuit, and the second display element is connected with the second pixel driving circuit.

公开(公告)号：US11830415B2

公开(公告)日：2023-11-28

申请号：US17095470

申请日：2020-11-11

Applicant: LG Display Co., Ltd.

Inventor： WonSang Ryu ,  Jin Hee Heo ,  MoonHo Park ,  JinSung Kim

IPC: G09G5/00 ,  G09G3/32 ,  H10K59/131

CPC classification number: G09G3/32 ,  H10K59/1315 ,  G09G2300/0809 ,  G09G2320/0233

Abstract: Embodiments of the disclosure concern display devices. The voltage line for supplying driving voltage to the cathode electrode of the light emitting element in the subpixel and the voltage line for supplying voltage for initializing the subpixel are integrated together. This allows for use of fewer voltage lines in the active area, along with easier arrangement of the voltage lines. The wire resistance may be reduced by adjusting the width of the voltage lines. The reduction in wire resistance may decrease brightness deviation or increase the aperture ratio or transmittance of the subpixel, thus allowing the display device higher light emission efficiency or transmittance.

公开(公告)号：US20240054961A1

公开(公告)日：2024-02-15

申请号：US18362493

申请日：2023-07-31

Applicant: LG Display Co., Ltd.

Inventor： SungSoo Shin ,  Jungyul Yang ,  Hanseok Lee ,  HyeJI Jeon ,  YounGyoung Chang ,  WonSang Ryu

IPC: G09G3/3266 ,  H01L27/12 ,  H01L29/786 ,  G09G3/36

CPC classification number: G09G3/3266 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/78633 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2300/0426

Abstract: Disclosed is a thin film transistor substrate comprising a substrate; a first thin film transistor on the substrate, the first thin film transistor including a first active layer and a first gate electrode; a second thin film transistor on the substrate, the second thin film transistor including a second active layer and a second gate electrode above the first active layer and the first gate electrode; a first insulating layer between the first gate electrode and the second active layer; and; and a first connection electrode connecting together the first active layer and the second active layer, the first connection electrode extending through a first contact hole in the first insulating layer and is in contact with each of the first active layer and the second active layer and a display apparatus including the same.