公开(公告)号：US20220102471A1

公开(公告)日：2022-03-31

申请号：US17470510

申请日：2021-09-09

Applicant: LG DISPLAY CO., LTD.

Inventor： YoungIn JANG ,  Ji-Heun LEE ,  EunJi PARK

IPC: H01L27/32 ,  G09G3/3291

Abstract: A light emitting display panel and a light emitting display apparatus including the same, in which a cathode is connected to an auxiliary cathode electrode through an undercut region provided under a planarization layer, are provided. The light emitting display panel includes a substrate, an auxiliary cathode electrode provided in the substrate, a passivation layer covering the auxiliary cathode electrode, an anode provided on the passivation layer, a bank surrounding an outer portion of the anode, a light emitting layer provided on the anode, and a cathode provided on the light emitting layer, the cathode is connected to the auxiliary cathode electrode through a connection electrode exposed at an undercut region passing through the bank and the passivation layer.

公开(公告)号：US20190206979A1

公开(公告)日：2019-07-04

申请号：US16223854

申请日：2018-12-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Jeonphill HAN ,  Ji-Heun LEE ,  TaeYong KIM

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3279 ,  H01L51/5228 ,  H01L51/5271

Abstract: Disclosed is an electroluminescent display device capable of overcoming a problem related with a resistance of a low level voltage line without any loss of an aperture ratio, wherein the electroluminescent display device may include a substrate, a first electrode provided on the substrate, a bank configured to cover an end of the first electrode and to define an emission area, an emission layer provided on the first electrode in the emission area defined by the bank, a second electrode provided on the emission layer and the bank, a conductive layer provided on the second electrode, and the low level voltage line provided on the substrate and electrically connected with the second electrode or the conductive layer.

公开(公告)号：US20220208925A1

公开(公告)日：2022-06-30

申请号：US17555274

申请日：2021-12-17

Applicant: LG Display Co., Ltd.

Inventor： EunJi PARK ,  KyungMin KIM ,  Ji-Heun LEE

IPC: H01L27/32 ,  G09G3/3291

Abstract: A light emitting display panel includes a substrate including a non-display area and a display area with pixels, a driving light-shielding electrode on the substrate, a buffer covering the driving light-shielding electrode, a pixel driving circuit layer in the buffer, including a driving transistor connected with the driving light-shielding electrode, a planarization layer covering the pixel driving circuit layer, an anode in the planarization layer and connected with the driving light-shielding electrode and the driving transistor, a repair line in the planarization layer, a bank covering an outer portion of the anode to form an opening area from which the anode is exposed, a light emitting layer on the anode and the bank, and a cathode on the light emitting layer, wherein the repair line is connected with an island-shaped contact electrode below the repair line, and at least one insulating layer is below the contact electrode.

公开(公告)号：US20220199655A1

公开(公告)日：2022-06-23

申请号：US17528695

申请日：2021-11-17

Applicant: LG DISPLAY CO., LTD.

Inventor： EunJi PARK ,  Ji-Heun LEE ,  KyungMin KIM

IPC: H01L27/12

Abstract: A light emitting display apparatus is provided, which may repair an opened gate line using power supply lines. The light emitting display apparatus comprises a gate line provided along a first direction of a light emitting display panel, a voltage supply line provided in the light emitting display panel along a second direction different from the first direction, at least three pixels provided between two adjacent voltage supply lines and connected to the gate line, a first branch voltage supply line extended from a first voltage supply line of the two voltage supply lines along the first direction and connected to at least one pixel adjacent to the first voltage supply line among the at least three pixels, and a second branch voltage supply line extended from a second voltage supply line of the two voltage supply lines along the first direction and connected with at least one pixel adjacent to the second voltage supply line among the at least three pixels, wherein an end of the first branch voltage supply line and an end of the second branch voltage supply line are adjacent to each other.

公开(公告)号：US20140183464A1

公开(公告)日：2014-07-03

申请号：US13973275

申请日：2013-08-22

Applicant: LG Display Co., Ltd.

Inventor： Heume-Il BAEK ,  Ji-Heun LEE

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3213 ,  H01L27/3244 ,  H01L51/5218 ,  H01L51/5231 ,  H01L2227/323

Abstract: An OLED display device includes a substrate; pixel regions defined by gate and data lines, each pixel region including red, green, first blue and second blue sub-pixels; a TFT in each pixel region; a first electrode connected to the thin film transistor; an insulating layer exposing the first electrode; hole injecting and hole transporting layers stacked on the first electrode; red, green and blue emitting layer on the hole transporting layer, the red and green emitting layers respectively being in the red and green sub-pixels, and the blue emitting layer being in the first and second blue sub-pixels; electron transporting and electron injecting layers stacked on the red, green and blue emitting layers; and a second electrode on the insulating layer and the electron injecting layer, wherein the first electrode in the second blue sub-pixel has a multi-layered structure of the first electrode layer and at least one metal layer.

Abstract translation: OLED显示装置包括：基板; 由栅极和数据线限定的像素区域，每个像素区域包括红色，绿色，第一蓝色和第二蓝色子像素; 每个像素区域中的TFT; 连接到所述薄膜晶体管的第一电极; 暴露第一电极的绝缘层; 空穴注入和空穴传输层堆叠在第一电极上; 红色，绿色和蓝色发光层，红色和绿色发光层分别在红色和绿色子像素中，并且蓝色发光层位于第一和第二蓝色子像素中; 堆叠在红色，绿色和蓝色发光层上的电子传输和电子注入层; 以及在所述绝缘层和所述电子注入层上的第二电极，其中所述第二蓝色子像素中的所述第一电极具有所述第一电极层和至少一个金属层的多层结构。