公开(公告)号：US20240224578A1

公开(公告)日：2024-07-04

申请号：US18556850

申请日：2021-10-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Linlin WANG ,  Changyen WU ,  Juanjuan YOU ,  Yongqi SHEN ,  Bin BU ,  Wenfeng SONG ,  Guang YAN ,  Li SUN ,  Dacheng ZHANG

IPC: H10K50/818 ,  H10K50/16 ,  H10K50/17 ,  H10K50/82 ,  H10K50/852 ,  H10K102/00

CPC classification number: H10K50/818 ,  H10K50/16 ,  H10K50/171 ,  H10K50/82 ,  H10K50/852 ,  H10K2102/351

Abstract: An electroluminescent device and a display apparatus, for improving the efficiency and prolonging the service life of the electroluminescent device. The electroluminescent device comprises: an anode comprising a reflective material; a cathode arranged opposite to the anode and comprising a transflective material; n light-emitting functional layers laminated between the anode and the cathode, wherein n is an integer greater than 1; and each light-emitting functional layer comprises a light-emitting layer and an electron transport layer located at the side of the light-emitting layer close to the cathode, wherein the thickness of the electron transport layer in the light-emitting functional layer closest to the cathode is greater than that of the electron transport layers in the remaining light-emitting functional layers; and (n−1) charge generation layers located between two adjacent light-emitting functional layers.

公开(公告)号：US20220320205A1

公开(公告)日：2022-10-06

申请号：US17629026

申请日：2021-04-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Juanjuan YOU ,  Ying CUI ,  Yue ZHANG

IPC: H01L27/32 ,  H01L51/56

Abstract: A display base plate and a manufacturing method therefor, a display panel and a display apparatus, relates to the technical field of display. The display base plate includes: a substrate (101), a first electrode layer (102) formed on the substrate (101), and a first pixel definition layer (103) and a second pixel definition layer (104) formed on the first electrode layer (102); the first pixel definition layer (103) divides the substrate (101) into a plurality of pixel regions (105), each pixel region (105) includes a plurality of subpixel regions (1050) distributed along a first direction, and two adjacent subpixel regions (1050) are separated by the second pixel definition layer (104); in the first direction, surfaces of each pixel region (105) in contact with the first pixel definition layer (103) include a plurality of first curved surfaces (1061) and a plurality of second curved surfaces (1062), and the first curved surfaces (1061) and the second curved surfaces (1062) are protruded away from the pixel region (105) to which they belong.

公开(公告)号：US20220037614A1

公开(公告)日：2022-02-03

申请号：US17279664

申请日：2020-07-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Linlin WANG ,  Juanjuan YOU

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56

Abstract: The present disclosure provides a light-emitting diode, including a first electrode, a light-emitting functional layer and a second electrode which are stacked, the first electrode is a transparent electrode, the second electrode includes a metal electrode layer and a semiconductor auxiliary layer, the metal electrode layer is attached to the light-emitting functional layer, the semiconductor auxiliary layer is located on a surface of the metal electrode layer away from the light-emitting functional layer. The metal electrode layer is made of a magnesium-silver alloy, a thickness of the metal electrode layer is between 3 nm and 5 nm, and the semiconductor auxiliary layer is made of IZO, a thickness of the semiconductor auxiliary layer is between 100 nm and 130 nm. The present disclosure further provides a light emitting device and a method of manufacturing a light emitting diode. The light-emitting diode has high color rendering index and low power consumption.

公开(公告)号：US20190027702A1

公开(公告)日：2019-01-24

申请号：US15754526

申请日：2017-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Juanjuan YOU ,  Changyen WU

IPC: H01L51/52 ,  H01L51/56 ,  H01L51/00

Abstract: A composite transparent electrode, an organic light-emitting diode and a method for manufacturing thereof, an array substrate and a display device. In the composite transparent electrode, a cover layer (12) is provided between a metal layer (11) and a transparent conducting oxide layer (13), the transparent conducting oxide layer (13) is electrically connected to the metal layer (11). The composite transparent electrode can reduce damages to the metal layer (11) or decrease pressure fall during a sputtering process.

公开(公告)号：US20180375047A1

公开(公告)日：2018-12-27

申请号：US15737217

申请日：2017-06-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Juanjuan YOU ,  Chinlung LIAO

IPC: H01L51/50

Abstract: The present disclosure provides an organic electroluminescent device and a display device. The material of the blue light emitting layer in the organic electroluminescent device comprises an electron transport material and a hole transport material that can form a blue light exciplex. The proportions respectively occupied by the electron transport material and the hole transport material of the blue light emitting layer in all materials of the blue light emitting layer match with the abilities of the red light emitting layer and the green light emitting layer to transport electrons, so that electrons and holes would not recombine within and at an edge of the portion of the blue light emitting layer that covers the red light emitting layer and the green light emitting layer when the red light emitting layer and/or the green light emitting layer is required to emit light.

公开(公告)号：US20160284268A1

公开(公告)日：2016-09-29

申请号：US14442794

申请日：2014-09-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guang YAN ,  Hongfei CHENG ,  Li SUN ,  Chang Yen WU ,  Minghung HSU ,  Shibo JIAO ,  Juanjuan YOU ,  Zhiqiang JIAO ,  Yanli WANG ,  Deming LIU

IPC: G09G3/3233 ,  G09G3/20 ,  H01L51/56 ,  H01L51/50 ,  H01L51/52

CPC classification number: G09G3/3233 ,  G09G3/2003 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/0666 ,  H01L27/32 ,  H01L27/3209 ,  H01L51/50 ,  H01L51/5036 ,  H01L51/504 ,  H01L51/52 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/56 ,  H01L2251/5353 ,  H01L2251/5361 ,  H01L2251/564

Abstract: The present invention discloses organic light emitting device, manufacturing method thereof, organic light emitting display device and driving method thereof. The organic light emitting device comprises a substrate and a first electrode layer, an organic layer and a second electrode layer positioned on the substrate, the organic layer is arranged between the first and second electrode layers, the first electrode layer, the organic layer and the second electrode layer form a laminated region for emitting light in a first specific color in a positive half cycle of alternating current and an inverted region for emitting light in a second specific color in a negative half cycle of alternating current, and at least portions of projections of the laminated region and the inverted region on the substrate are not overlapped;. Technical solutions of the present invention render the organic light emitting device with adjustable light color and prolonged service life.

Abstract translation: 本发明公开了有机发光装置及其制造方法，有机发光显示装置及其驱动方法。 有机发光器件包括基板和位于基板上的第一电极层，有机层和第二电极层，有机层布置在第一和第二电极层之间，第一电极层，有机层和 第二电极层形成用于在交流电的正半周期中以第一特定颜色发光的层叠区域和用于以交变电流的负半周期发射第二特定颜色的反射区域，以及至少部分突起 的层叠区域和反转区域不重叠。 本发明的技术方案使有机发光装置具有可调光色和延长的使用寿命。