公开(公告)号：US20230411409A1

公开(公告)日：2023-12-21

申请号：US17974430

申请日：2022-10-26

Applicant: LG Display Co., Ltd.

Inventor： SungJun YUN ,  PilSang YUN ,  Taegyun KIM ,  MinSu KIM ,  InTak CHO ,  ISak LEE

IPC: H01L27/12

CPC classification number: H01L27/1248 ,  H01L27/124 ,  H01L27/1259

Abstract: Disclosed are a display device and a manufacturing method thereof. More particularly, a display device including a substrate, a buffer layer disposed on the substrate, an active layer disposed on the buffer layer, a gate insulating film disposed on the active layer, and a gate electrode disposed on the gate insulating film, wherein the gate insulating film includes a first portion and a second portion, wherein the first portion is closer to the active layer than the second portion and the second portion is closer to the gate electrode than the first portion, and the gate insulating film includes two or more elements having different component concentrations in the first portion and the second portion, and a manufacturing method thereof are provided to provide a transistor structure having high reliability.

公开(公告)号：US20150162393A1

公开(公告)日：2015-06-11

申请号：US14565160

申请日：2014-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： ImKuk KANG ,  SungJun YUN ,  WooCheol JEONG

IPC: H01L27/32 ,  G01R31/26 ,  H01L51/56

CPC classification number: G01R31/2635 ,  H01L27/3262 ,  H01L51/0554 ,  H01L2227/323

Abstract: Discussed are an organic light emitting diode display which can minimize a malfunction due to an open failure caused in a fabricating process of the organic light emitting diode display using thin film transistors as control elements, and fabricating and inspecting method of the organic light emitting diode display. Accordingly, at least one contact part is further formed by forming an upper metal layer of a dual gate structure with respect to an area in which an open failure easily occurs due to a step difference on a substrate of the organic light emitting diode display, so that a signal can be normally applied even when the open failure occurs.

Abstract translation: 讨论了一种有机发光二极管显示器，其可以将使用薄膜晶体管作为控制元件的有机发光二极管显示器的制造过程中引起的开路故障最小化，以及有机发光二极管显示器的制造和检查方法 。 因此，通过相对于由于有机发光二极管显示器的基板上的台阶差容易发生开路故障的区域形成双栅极结构的上部金属层，进一步形成至少一个接触部分，因此 即使发生开路故障，也可以正常施加信号。