知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.032 seconds)

    LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
    2.
    发明申请
    LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME 有权

    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.

    Display device with corrected gate-off voltage and method of operating the same
    3.
    发明授权
    Display device with corrected gate-off voltage and method of operating the same 有权

    公开(公告)号：US10515605B2

    公开(公告)日：2019-12-24

    申请号：US15887018

    申请日：2018-02-02

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Hongbeom Lee ,  Jihoon Shin ,  Yeunmo Yeon ,  Eunkyung Kim ,  Minho Park ,  Chowon Park ,  Yina Yun

    IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1337

    Abstract: A display device includes: a substrate; a gate line, a dummy gate line, a data line, a dummy data line, a pixel electrode, and a dummy pixel electrode, each disposed on the substrate; a switching element connected to the gate line, the data line, and the pixel electrode; a dummy switching element connected to the dummy gate line, the dummy data line, and the dummy pixel electrode; a compensation circuit detecting a change amount of a drain current based on drain currents generated from the dummy pixel at different time points, and detecting a change amount of a gate voltage of the dummy switching element based on the change amount of the drain current; a power supply circuit outputting a corrected gate-off voltage based on the change amount of the gate voltage; and a gate driver applying the corrected gate-off voltage to the gate line.

    Organic light emitting diode
    6.
    发明授权
    Organic light emitting diode 有权

    公开(公告)号：US09991459B2

    公开(公告)日：2018-06-05

    申请号：US15191947

    申请日：2016-06-24

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Myunghwan Kim ,  Minho Park ,  Wonjun Song ,  Taewoo Lee

    IPC: H01L51/50 ,  H01L51/52

    CPC classification number: H01L51/504 ,  H01L27/3209 ,  H01L51/5206 ,  H01L51/5218 ,  H01L51/5221 ,  H01L51/5234 ,  H01L2251/301 ,  H01L2251/303

    Abstract: An organic light emitting diode, including a first electrode; a first light emitting unit on the first electrode; a charge generating layer on the first light emitting unit, the charge generating layer including a plurality of organic layers; a second light emitting unit on the charge generating layer; and a second electrode on the second light emitting unit, the plurality of organic layers of the charge generating layer including a first organic layer and a second organic layer that are respectively adjacent to the first light emitting unit and the second light emitting unit; and a third organic layer between the first organic layer and the second organic layer, the first organic layer and the second organic layer being one of a p-type layer or a hole transport layer, and the third organic layer being the other of the p-type layer or the hole transport layer.

Patent Agency Ranking