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公开(公告)号：US11631705B2
公开(公告)日：2023-04-18
申请号：US17028988
申请日：2020-09-22
发明人： Hongda Sun , Wenjun Hou
IPC分类号： H01L27/12
摘要： A method of manufacturing a display substrate, a display substrate and a display panel are provided. The method of manufacturing a display substrate includes: infiltrating an etching point of a film group with an etching solution, to form an infiltration groove at the etching point of a film group; and patterning a remaining part of the film group at the infiltration groove, to obtain a via hole penetrating the remaining part of the film group.
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2.发明授权公开(公告)号：US11251241B2
公开(公告)日：2022-02-15
申请号：US16202388
申请日：2018-11-28
发明人： Wenjun Hou
摘要： A pixel defining structure and a fabrication method thereof, a display substrate and a jet printing method are provided. The pixel defining structure includes a substrate, and a plurality of pixel defining units on the substrate, including at least one first pixel defining unit and at least one second pixel defining unit which are arranged along a first direction and a second direction which intersect with each other, wherein each pixel defining unit has a first surface and a second surface opposite to each other and an opening communicating the first surface with the second surface, wherein, the inward inclination angle of at least one side edge of the at least one second pixel defining unit is smaller than the inward inclination angle of at least one side edge of the at least one first pixel defining unit.
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公开(公告)号：US11244991B2
公开(公告)日：2022-02-08
申请号：US16073964
申请日：2018-01-05
发明人： Wenjun Hou
摘要： This disclosure relates to a production method of a display substrate, a display substrate, and a display apparatus. This production method comprises steps of: forming a thin film for a pixel defining layer used to define a light-emitting area of each sub-pixel on a base substrate; forming nanoparticles in a preset area of the thin film for the pixel defining layer, wherein the preset area is an area corresponding to a place between adjacent sub-pixels; and performing patterning treatment on the thin film for the pixel defining layer formed with the nanoparticles, with a material in the preset area being retained, to form a pattern of the pixel defining layer.
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公开(公告)号：US10818866B2
公开(公告)日：2020-10-27
申请号：US15991536
申请日：2018-05-29
发明人： Wenjun Hou
摘要： 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.
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公开(公告)号：US20190165059A1
公开(公告)日：2019-05-30
申请号：US15992042
申请日：2018-05-29
发明人： Wenjun Hou
摘要： 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.
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公开(公告)号：US10204968B2
公开(公告)日：2019-02-12
申请号：US15129091
申请日：2016-01-15
发明人： Wenjun Hou , Ze Liu
摘要： The present invention provides an organic light-emitting display substrate, a method of fabricating the same, an organic light-emitting display panel, and an organic light-emitting display device. The organic light-emitting display substrate comprises a pixel defining layer provided on a base substrate and configured to define a sub-pixel region, the pixel defining layer comprises an accommodation area corresponding to a sub-pixel, and a groove located on an outer peripheral side of the accommodation area. In a process of forming an organic light-emitting layer by means of inkjet printing, excessive ink flows into the groove on the outer peripheral side of the accommodation area, which facilitates matching between a volume of ink for forming the organic light-emitting layer and a thickness of an actual organic light-emitting layer.
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公开(公告)号：US09679951B2
公开(公告)日：2017-06-13
申请号：US14785428
申请日：2015-01-27
发明人： Wenjun Hou , Chinlung Liao , Ze Liu
CPC分类号： H01L27/3246 , H01L27/3283 , H01L51/52 , H01L51/56 , H01L2227/323
摘要： The present invention relates to the field of display technology, particularly to a pixel defining layer, an organic electroluminescent device and a display device. The pixel defining layer comprises a first defining layer on an array substrate and a second defining layer on the first defining layer, wherein the first defining layer is made of a lyophilic inorganic material, and the second defining layer is made of a lyophobic organic material. The present invention provides a pixel defining layer, an organic electroluminescent device and a display device, wherein ink-jet printing technology is used to patternize pixels of an organic material, which serves as not only a protective layer on the first inorganic material layer during dry etching, but also a lyophobic layer on the second layer; the making of the double-layered pixel defining layer omits the process of using two masks, which can effectively reduce costs and improve production efficiency.
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公开(公告)号：US20150188086A1
公开(公告)日：2015-07-02
申请号：US14415628
申请日：2014-05-27
发明人： Wenjun Hou , Ze Liu
CPC分类号： H01L51/5265 , G02B5/201 , G02B5/285 , H01L27/3211 , H01L51/5271 , H01L51/56
摘要： 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.
摘要翻译： 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彼此交替堆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。
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公开(公告)号：US11594585B2
公开(公告)日：2023-02-28
申请号：US17253196
申请日：2020-04-22
发明人： Wenjun Hou
摘要： The present disclosure provides an array substrate, a method for manufacturing the array substrate, a display panel and a display apparatus. The array substrate of the present disclosure includes a substrate and a pixel definition layer on the substrate, the pixel definition layer includes a base structure on the substrate, the base structure defines a plurality of openings on the substrate, each of the plurality of openings corresponds to one pixel region; and at least one protrusion structure provided on the base structure, wherein the at least one protrusion structure protrudes towards a direction away from the substrate, and the at least one protrusion structure has hydrophobic property.
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公开(公告)号：US11539020B2
公开(公告)日：2022-12-27
申请号：US16910092
申请日：2020-06-24
发明人： Wenjun Hou
摘要： Provided is a display substrate, a preparation method thereof and a display apparatus. The display substrate includes a base substrate, which has a display area and an encapsulation area, the encapsulation area surrounds the display area, and a hydrophobic structure is arranged on the encapsulation area.
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