公开(公告)号：US10573702B2

公开(公告)日：2020-02-25

申请号：US16006235

申请日：2018-06-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Jongwoo Park ,  Donggi Ahn

IPC: H01L21/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  G02B5/23

Abstract: An organic light emitting display device may include a substrate including a display area and a non-display area; a thin film transistor on the substrate in the display area; a planarization layer covering the thin film transistor; a first electrode on the planarization layer in the display area and connected to the thin film transistor; a pixel defining layer covering the first electrode and including a first opening that exposes a portion of the first electrode to define an emission area; a first light blocking layer on the pixel defining layer and including a photochromic material, a color of the first light blocking layer being reversibly changed by ultraviolet light; an organic light emitting layer on the first electrode; and a second electrode on the organic light emitting layer.

公开(公告)号：US20250098401A1

公开(公告)日：2025-03-20

申请号：US18615736

申请日：2024-03-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Hakchoong Lee ,  Kayoung Lee ,  Changmin Lee ,  Jaehoon Hwang

IPC: H10K50/13 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K59/123 ,  H10K59/38

Abstract: Provided is a light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer arranged between the first electrode and the second electrode. The interlayer includes emission layers, charge generation layers arranged between emission layers, and a layer including an alkali metal and Yb.

公开(公告)号：US12250877B2

公开(公告)日：2025-03-11

申请号：US17239405

申请日：2021-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Namsu Kang ,  Jin Kim ,  Jongwon Lee ,  Hyunshik Lee ,  Jaehoon Hwang

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K85/10 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; m emission units; and m−1 charge generation layer(s), each including an n-type charge generation layer and a p-type charge generation layer and being located between two emission units. The m emission units each include a hole transport region, an electron transport region, and an emission layer between the hole transport region and the electron transport region. An mth electron region included in an mth emission layer that is closest among the m emission units to the second electrode includes an mth electron transport layer. The mth electron transport layer is a single layer consisting of a first compound, the mth emission layer included in the mth emission unit includes a second compound, and the mth electron transport layer and the mth emission layer may be different from each other.

公开(公告)号：US20230225204A1

公开(公告)日：2023-07-13

申请号：US18095367

申请日：2023-01-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Seungcheol Kim ,  Changmin Lee ,  Hyunshik Lee

IPC: H10K85/60

CPC classification number: H10K85/6572 ,  H10K50/181

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer arranged between the first electrode and the second electrode and including an emission layer; and a hole transport region arranged between the first electrode and the emission layer, wherein the hole transport region includes an electron blocking layer, and the electron blocking layer includes a heterocyclic compound represented by Formula 1.

公开(公告)号：US11450836B2

公开(公告)日：2022-09-20

申请号：US17081997

申请日：2020-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jungwook Lee ,  Minjae Baek ,  Jinbo Shim ,  Jongwon Lee ,  Wongu Cho ,  Sang Youn Han

IPC: H01L51/52 ,  G06F3/044 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3225

Abstract: A display device including a display panel having a light emitting area and a non-light emitting area around the light emitting area, a first conductive pattern disposed in the non-light emitting area, a second conductive pattern disposed on the first conductive pattern, and a reflection pattern overlapping the non-light emitting area and disposed between the light emitting area and the second conductive pattern.

公开(公告)号：US20220149288A1

公开(公告)日：2022-05-12

申请号：US17517523

申请日：2021-11-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jongwon Lee ,  Namsu Kang ,  Minho Park ,  Heungsu Park ,  Minkyung Kim ,  Hyunshik Lee

IPC: H01L51/00

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; m light-emitting units stacked between the first electrode and the second electrode and including an emission layer; and m−1 charge generation layers respectively between two neighboring light-emitting units among the m light-emitting units, wherein m is an integer of 2 or more, at least one of the m light-emitting units includes an n-doped electron transport layer between the emission layer and the second electrode, a charge generation layer on the n-doped electron transport layer includes a p-type charge generation layer in direct contact with the n-doped electron transport layer, the n-doped electron transport layer includes a first electron transport material, a second electron transport material, and a metal, the first electron transport material and the second electron transport material are different from each other.

公开(公告)号：US10964239B2

公开(公告)日：2021-03-30

申请号：US16391802

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Daeyoun Cho ,  Sangkil Kim ,  Hyunho Kim ,  Young-joo Noh ,  Jongwoo Park ,  Jongwon Lee ,  Juhee Lee ,  Youngtae Choi

IPC: G01R31/02 ,  G09G3/00 ,  G09G3/3225

Abstract: A lighting test device for a display panel includes: a connection part including a first connection test pad, a second connection test pad and a plurality of test pads, which are arranged at an end of the connection part, where the connection part is allowed to be connected to the display panel through the first connection test pad, the second connection test pad and the test pads; and a test circuit which outputs a connection test signal to the first connection test pad, receives a feedback signal through the second connection test pad, and adjusts voltage levels of test signals to be applied to the test pads based on the connection test signal and the feedback signal.