公开(公告)号：US20200028106A1

公开(公告)日：2020-01-23

申请号：US16585599

申请日：2019-09-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanzhao LI ,  Chungchun LEE ,  Zhuo CHEN ,  Yuanming ZHANG

IPC: H01L51/50 ,  H01L51/56 ,  B05D1/00 ,  H01L21/82

Abstract: A quantum dot light-emitting diode substrate having a bonding layer and a method of preparing the same are provided. The quantum dot light-emitting diode substrate including a plurality of sub-pixel light-emitting regions, wherein each of the sub-pixel light-emitting regions includes a light-emitting layer including a bonding layer and a quantum dot bonded to the bonding layer. The quantum dot light-emitting diode substrate can be prepared with high resolution by a convenient process, and is suitable for mass production.

公开(公告)号：US20240224560A1

公开(公告)日：2024-07-04

申请号：US17921091

申请日：2021-12-28

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Haowei WANG ,  Xiaoyuan ZHANG ,  Yuanming ZHANG

IPC: H10K50/115 ,  C09K11/06 ,  H10K59/35 ,  H10K59/38 ,  H10K85/40 ,  H10K85/60

CPC classification number: H10K50/115 ,  C09K11/06 ,  H10K59/35 ,  H10K59/38 ,  H10K85/40 ,  H10K85/60

Abstract: Disclosed are a light-emitting device and a preparation method thereof, a display panel and a display device. The light-emitting device includes: a substrate; an auxiliary layer and a quantum dot layer that are arranged in sequence on one side of the substrate; the auxiliary layer has a first group and a second group, the first group and a surface group of the substrate are bound with each other through a chemical reaction, the second group and ligands of quantum dots in the quantum dot layer are bound with each other through a chemical reaction, and a binding force between the auxiliary layer and the substrate is smaller than a binding force between the quantum dots and the auxiliary layer.

公开(公告)号：US20240251643A1

公开(公告)日：2024-07-25

申请号：US18017225

申请日：2022-02-28

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yuanming ZHANG ,  Haowei WANG ,  Yang GAO

IPC: H10K59/80 ,  G02F1/1523 ,  G02F1/155 ,  H10K59/50

CPC classification number: H10K59/878 ,  G02F1/1523 ,  G02F1/155 ,  H10K59/50

Abstract: A display panel, a display device, and a fabricating method of a display panel. The display panel includes: a base substrate (1); a plurality of light-emitting devices (2) on a side of the base substrate (1); and additional members on a side of the light-emitting devices (2) away from the base substrate (1). The additional members includes light extraction structures (3) and electrochromic structures (4), where orthographic projections of the light extraction structures (3) on the base substrate (1) overlap orthographic projections of the light-emitting devices (2) on the base substrate (1), and the light extraction structures are configured to draw in light from the light-emitting devices (2); and orthographic projections of the electrochromic structures (4) on the base substrate (1) are located between orthographic projections of adjacent light-emitting devices (2) on the base substrate (1), and the electrochromic structures are configured such that the electrochromic structures (4) are in a transparent state when the light-emitting devices (2) emit light, and electrochromic structures (4) are in a shading state when the light-emitting devices (2) do not emit light.

公开(公告)号：US20190296241A1

公开(公告)日：2019-09-26

申请号：US16129622

申请日：2018-09-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhuo CHEN ,  Yuanming ZHANG ,  Wenhai MEI

IPC: H01L51/00 ,  H01L51/56

Abstract: A method for patterning a quantum dot layer, a method for manufacturing a display device and a transfer template are provided in embodiments of the disclosure; the method for patterning a quantum dot layer, comprising: preparing a quantum dot layer on a substrate, the quantum dot layer comprising a reserved portion and a portion to be removed; bonding the portion to be removed with a plurality of convex portions provided on a transfer template, by pressing the transfer template against the quantum dot layer; and removing the portion to be removed with a removal of the transfer template, while retaining the reserved portion on the substrate.

公开(公告)号：US20190288226A1

公开(公告)日：2019-09-19

申请号：US16215886

申请日：2018-12-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dong LI ,  Boris KRISTAL ,  Yuanming ZHANG

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

Abstract: An OLED array substrate includes a plurality of pixel structure, including a plurality of pixel units, each of the plurality of pixel units including: a base substrate; a first electrode disposed above the base substrate; a light emitting layer disposed on a side of the first electrode facing away from the base substrate; a second functional layer disposed on a side of the light emitting layer facing away from the base substrate, wherein the second functional layer wraps the light emitting layer.

公开(公告)号：US20180294414A1

公开(公告)日：2018-10-11

申请号：US15865502

申请日：2018-01-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenhai MEI ,  Zhuo CHEN ,  Yuanming ZHANG

IPC: H01L51/00 ,  H01L51/50 ,  H01L21/02

CPC classification number: H01L51/0007 ,  H01L21/02109 ,  H01L51/0003 ,  H01L51/0092 ,  H01L51/502

Abstract: A QLED device and manufacturing method thereof, a QLED display panel and a QLED display device are disclosed which improve the surface and internal structure of the quantum dot layer in the QLED devices. The method for manufacturing a QLED device includes forming a first electrode layer; forming a quantum dot layer on the first electrode layer; infiltrating a mixed solvent containing a bifunctional molecule into the quantum dot layer so as to improve the structure of the quantum dot layer; and forming a second electrode layer on the quantum dot layer.