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    Pixel defining layer having pixel defining sub-layers
    31.
    发明授权
    Pixel defining layer having pixel defining sub-layers 有权

    公开(公告)号：US10546904B2

    公开(公告)日：2020-01-28

    申请号：US15992042

    申请日：2018-05-29

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou

    IPC: H01L27/32 ,  H01L27/12 ,  H01L51/00

    Abstract: Provided is a pixel defining layer for pixels formed by ink jet printing, an array substrate and a display apparatus. The pixel defining layer comprises a first pixel defining sub-layer, which defines a plurality of uniformly distributed pixels; and a second pixel defining sub-layer on the first pixel defining sub-layer, wherein the second pixel defining sub-layer and the first pixel defining sub-layer together define a plurality of ink-holding spaces for the plurality of uniformly distributed pixels respectively, and wherein a width of the first pixel defining sub-layer is not less than a width of the second pixel defining sub-layer thereon, wherein the pixel defining layer is divided into an active area zone and an dummy zone outside the active area zone, and wherein an ink-holding space of a pixel in the dummy zone is larger than an ink-holding space of a pixel in the active area zone.

    ELECTROLUMINESCENT DIODE ARRAY SUBSTRATE, MANUFACTURING METHOD THEREOF AND DISPLAY PANEL
    32.
    发明申请
    ELECTROLUMINESCENT DIODE ARRAY SUBSTRATE, MANUFACTURING METHOD THEREOF AND DISPLAY PANEL 审中-公开

    公开(公告)号：US20190288044A1

    公开(公告)日：2019-09-19

    申请号：US16308883

    申请日：2018-06-20

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou

    IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00

    Abstract: An electroluminescent diode array substrate, a method of manufacturing the electroluminescent diode array substrate and a display panel are provided, and the electroluminescent diode array substrate includes: a base substrate; and an auxiliary electrode, a pixel definition layer, a first electrode, a functional layer and a second electrode disposed on the base substrate, the pixel definition layer is provided with a via hole structure, the auxiliary electrode is disposed on at least one side of the via hole structure, and the second electrode is electrically connected with the auxiliary electrode.

    ORGANIC ELECTROLUMINESCENT DEVICE, PRODUCTION METHOD THEREOF, AND DISPLAY APPARATUS
    33.
    发明申请
    ORGANIC ELECTROLUMINESCENT DEVICE, PRODUCTION METHOD THEREOF, AND DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20190157601A1

    公开(公告)日：2019-05-23

    申请号：US15991536

    申请日：2018-05-29

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou

    IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00 ,  H01L27/32

    Abstract: An organic electroluminescent device, a production method thereof, and a display apparatus are disclosed. Specifically, the organic electroluminescent device includes: a substrate; a pixel defining layer on the substrate; and a hole injection layer on the substrate, wherein the hole injection layer is located in a pixel defining opening of the pixel defining layer, wherein the hole injection layer includes a first hole injection sub-layer and a second hole injection sub-layer covering the first hole injection sub-layer, an orthographic projection area of the second hole injection sub-layer on the substrate is greater than the orthographic projection area of the first hole injection sub-layer on the substrate, and a hole mobility of the second hole injection sub-layer is greater than the hole mobility of the first hole injection sub-layer.

    OLED display panel, manufacturing method thereof and display device
    34.
    发明授权
    OLED display panel, manufacturing method thereof and display device 有权

    公开(公告)号：US10141510B2

    公开(公告)日：2018-11-27

    申请号：US15321554

    申请日：2016-03-04

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou ,  Ying Cui

    IPC: H01L51/56 ,  H01L51/00 ,  H01L27/32 ,  H01L51/50

    Abstract: An organic light emitting diode display panel, a manufacturing method thereof and a display device are disclosed, for reducing the number of inkjet heads used in inkjet printing or alleviating the swath mura at printing interfaces. The method comprises manufacturing an anode layer, a light emitting layer and a cathode layer on a base substrate, and the method can further comprise manufacturing by an entire-surface coating process a function layer having a first preset thickness between the anode layer and the light emitting layer; and in a first preset region of the function layer that has been manufactured, manufacturing by an inkjet printing process a function layer having a second preset thickness.

    Display substrate with bragg reflection unit for each of the display units of at least three primary colors
    35.
    发明授权
    Display substrate with bragg reflection unit for each of the display units of at least three primary colors 有权
    具有至少三原色的每个显示单元的具有布拉格反射单元的显示基板

    公开(公告)号：US09543545B2

    公开(公告)日：2017-01-10

    申请号：US14415628

    申请日：2014-05-27

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou ,  Ze Liu

    IPC: H01L51/52 ,  G02B5/28 ,  H01L27/32 ,  H01L51/56

    CPC classification number: H01L51/5265 ,  G02B5/201 ,  G02B5/285 ,  H01L27/3211 ,  H01L51/5271 ,  H01L51/56

    Abstract: The present invention relates to the technical field of display, and provides a display substrate and a preparing method thereof which can solve the problem of lower light-emitting efficiency of the display substrate in the prior art. The display substrate of the present invention comprises a plurality of display units of at least two different colors. The display substrate further comprises a plurality of bragg reflection units in different regions corresponding to respective display units, each bragg reflection unit comprises first structural layer and second structural layer which are alternately stacked with each other and have different refractive indexes; thickness of each of the first and second structural layers is ¼n wavelength of incident light from corresponding display unit, wherein n is refractive index of the first or the second structural layer. The display substrate of the present invention has higher light-emitting efficiency and is applicable to full-color display.

    Abstract translation: 本发明涉及显示技术领域，并且提供了可以解决现有技术中显示基板的发光效率低的问题的显示基板及其制备方法。 本发明的显示基板包括至少两种不同颜色的多个显示单元。 显示基板还包括对应于各个显示单元的不同区域中的多个布拉格反射单元，每个布拉格反射单元包括交替层叠并具有不同折射率的第一结构层和第二结构层; 第一和第二结构层中的每一个的厚度是来自相应显示单元的入射光的1/4波长，其中n是第一或第二结构层的折射率。 本发明的显示基板具有更高的发光效率，并且适用于全色显示。

    Pixel defining layer, preparation method thereof, organic light-emitting diode substrate and display
    37.
    发明授权
    Pixel defining layer, preparation method thereof, organic light-emitting diode substrate and display 有权
    像素定义层，其制备方法，有机发光二极管基板和显示器

    公开(公告)号：US09054345B2

    公开(公告)日：2015-06-09

    申请号：US14342159

    申请日：2013-05-31

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Wenjun Hou ,  Ze Liu

    IPC: B32B3/00 ,  H01L51/56 ,  H01L27/32 ,  H01L51/00

    CPC classification number: H01L51/56 ,  H01L27/3246 ,  H01L51/0003 ,  H01L51/0007 ,  Y10T428/24802

    Abstract: A method for preparing a pixel defining layer (PDL), an organic light-emitting diode (OLED) substrate prepared by the PDL, and a display device are provided, which can overcome the problem that the conventional PDL comprising hydrophilic and hydrophobic materials involves a complicated process. The method for preparing the PDL comprises: step 1: forming a mixed solution on a substrate to form a mixed solution film, in which the mixed solution includes a hydrophilic material, a hydrophobic material and a solvent; step 2: performing heat treatment on the mixed solution film to form a pixel defining material layer in which the content of the hydrophilic material on the upper portion is less than that of the hydrophilic material on the lower portion and the content of the hydrophobic material on the upper portion is more than that of the hydrophobic material on the lower portion; and step 3: forming a pattern of the PDL on the pixel defining material layer by a patterning process. This method for preparing a PDL is simple and easy to realize.

    Abstract translation: 提供了一种制备像素限定层（PDL）的方法，由PDL制备的有机发光二极管（OLED）基板和显示装置，其可以克服包含亲水和疏水材料的常规PDL涉及 复杂的过程。 制备PDL的方法包括：步骤1：在基材上形成混合溶液以形成混合溶液膜，其中混合溶液包括亲水材料，疏水性材料和溶剂; 步骤2：在混合溶液膜上进行热处理以形成像素限定材料层，其中上部的亲水性材料的含量小于下部的亲水性材料的含量，并且疏水性材料的含量在 上部比在下部的疏水性材料的上部多; 步骤3：通过图案化工艺在像素限定材料层上形成PDL的图案。 这种制备PDL的方法简单易懂。

    Substrate and preparation method thereof, display panel and preparation method thereof, and display device
    40.
    发明授权
    Substrate and preparation method thereof, display panel and preparation method thereof, and display device 有权

    公开(公告)号：US11335879B2

    公开(公告)日：2022-05-17

    申请号：US16765984

    申请日：2019-12-05

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Li Sun ,  Wenjun Hou ,  Chengyuan Luo

    IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

    Abstract: A substrate and a preparation method thereof, a display panel and a preparation method thereof, and a display device are provided. The substrate includes a display region and a peripheral region positioned in a periphery of the display region and used for sealing, the substrate includes: a base substrate; an insulating layer, arranged on a side of the base substrate and positioned in the display region and the peripheral region for sealing; and a plurality of pixel units, positioned on the insulating layer corresponding to the display region, and in the peripheral region, at least one groove is disposed on a side of the insulating layer which faces away from the base substrate, a side of the groove which is away from the base substrate is open, and a depth direction of the groove is perpendicular to the base substrate.

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