公开(公告)号：US10734466B2

公开(公告)日：2020-08-04

申请号：US16667598

申请日：2019-10-29

Applicant: LG Display Co., Ltd.

Inventor： Jeonphill Han ,  Ji-Heun Lee ,  TaeYong Kim

IPC: H01L27/32

Abstract: Provided is an organic light-emitting display (OLED) device. The organic light-emitting display (OLED) device includes a substrate; a shielding pattern; a buffer layer covering the shielding pattern and including a first contact hole and a second contact hole; a thin film transistor electrically connected to the shielding pattern through the first contact hole; a conductive material located on the thin film transistor; an insulating film covering the conductive material and including a third contact; a first electrode located on the insulating film and electrically connected to the shielding pattern; a bank covering the first electrode and including an opening against the conductive material; and an organic light emitting layer located on the first electrode while corresponding to the opening.

公开(公告)号：US20220208804A1

公开(公告)日：2022-06-30

申请号：US17523905

申请日：2021-11-10

Applicant: LG Display Co., Ltd.

Inventor： Hun Jang ,  Ji-Heun Lee ,  Soyoung Lee

IPC: H01L27/12

Abstract: A light emitting display panel includes a driving transistor, and a storage capacitor including at least three electrodes to reduce a size of the driving transistor or the storage capacitor. The light emitting display panel comprises a light emitting element, the driving transistor connected to the light emitting element, and the storage capacitor connected to a gate and a first electrode of the driving transistor. The driving transistor includes a light shielding electrode used as the gate of the driving transistor, a buffer covering the light shielding electrode, an active portion provided on an upper surface of the buffer, forming the first electrode, a second electrode and a semiconductor portion of the driving transistor, a gate insulating layer covering the active portion, and a gate electrode provided on an upper surface of the gate insulating layer and connected to the light shielding electrode.

公开(公告)号：US09305979B2

公开(公告)日：2016-04-05

申请号：US13973275

申请日：2013-08-22

Applicant: LG Display Co., Ltd.

Inventor： Heume-Il Baek ,  Ji-Heun Lee

IPC: H01L21/00 ,  H01L27/32 ,  H01L51/52

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。

公开(公告)号：US12144214B2

公开(公告)日：2024-11-12

申请号：US17470510

申请日：2021-09-09

Applicant: LG DISPLAY CO., LTD.

Inventor： YoungIn Jang ,  Ji-Heun Lee ,  EunJi Park

IPC: H10K59/131 ,  G09G3/3291 ,  H10K59/122

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：US11164933B2

公开(公告)日：2021-11-02

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 ,  H01L27/12

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：US20200144350A1

公开(公告)日：2020-05-07

申请号：US16667598

申请日：2019-10-29

Applicant: LG Display Co., Ltd.

Inventor： Jeonphill Han ,  Ji-Heun Lee ,  TaeYong Kim

IPC: H01L27/32

Abstract: Provided is an organic light-emitting display (OLED) device. The organic light-emitting display (OLED) device includes a substrate; a shielding pattern; a buffer layer covering the shielding pattern and including a first contact hole and a second contact hole; a thin film transistor electrically connected to the shielding pattern through the first contact hole; a conductive material located on the thin film transistor; an insulating film covering the conductive material and including a third contact; a first electrode located on the insulating film and electrically connected to the shielding pattern; a bank covering the first electrode and including an opening against the conductive material; and an organic light emitting layer located on the first electrode while corresponding to the opening.