Patents by Inventor Zhengyin Xu
Zhengyin Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12295197Abstract: The present disclosure provides a display substrate, a manufacturing method thereof and a display panel. The display substrate includes a base substrate and a plurality of sub-pixels of different colors on the base substrate, wherein the plurality of sub-pixels include green sub-pixels, each of which includes an anode, a luminescent layer, and a cathode sequentially stacked in a direction away from the base substrate. The luminescent layer includes a first sub-layer, a second sub-layer and a third sub-layer sequentially stacked in the direction away from the base substrate; a molar ratio of P-type molecules to N-type molecules in a host material of the first sub-layer is greater than that of the second sub-layer, which in turn is greater than that of the third sub-layer.Type: GrantFiled: May 7, 2021Date of Patent: May 6, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yang Liu, Zhengyin Xu
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Publication number: 20220416189Abstract: The present disclosure provides a display substrate, a manufacturing method thereof and a display panel. The display substrate includes a base substrate and a plurality of sub-pixels of different colors on the base substrate, wherein the plurality of sub-pixels include green sub-pixels, each of which includes an anode, a luminescent layer, and a cathode sequentially stacked in a direction away from the base substrate. The luminescent layer includes a first sub-layer, a second sub-layer and a third sub-layer sequentially stacked in the direction away from the base substrate; a molar ratio of P-type molecules to N-type molecules in a host material of the first sub-layer is greater than that of the second sub-layer, which in turn is greater than that of the third sub-layer.Type: ApplicationFiled: May 7, 2021Publication date: December 29, 2022Inventors: Yang LIU, Zhengyin XU
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Patent number: 11199742Abstract: A display device includes a sub-pixel unit, the sub-pixel unit includes: a reflective liquid crystal display unit with a reflective display region, including a liquid crystal layer and a reflective layer; and a electroluminescent display unit with a light-emitting display region, wherein the light-emitting display region is overlapped with the reflective display region; wherein the reflective layer and the electroluminescent display unit are located on both sides of the liquid crystal layer respectively.Type: GrantFiled: December 15, 2017Date of Patent: December 14, 2021Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.Inventors: Wei Lin Lai, Guanyin Wen, Zhengyin Xu, Chien Pang Huang
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Publication number: 20210165273Abstract: A display device includes a sub-pixel unit, the sub-pixel unit includes: a reflective liquid crystal display unit with a reflective display region, including a liquid crystal layer and a reflective layer; and a electroluminescent display unit with a light-emitting display region, wherein the light-emitting display region is overlapped with the reflective display region; wherein the reflective layer and the electroluminescent display unit are located on both sides of the liquid crystal layer respectively.Type: ApplicationFiled: December 15, 2017Publication date: June 3, 2021Inventors: Wei Lin LAI, Guanyin WEN, Zhengyin XU, Chien Pang HUANG
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Patent number: 10872940Abstract: A display substrate, a manufacturing method thereof and a display device are disclosed. The method includes: forming a pixel defining layer being doped with a heat-generating material capable of generating heat under specified conditions; sequentially forming a first carrier transport layer, a light-emitting material layer and a second carrier transport layer, wherein orthographic projections of the first and second carrier transport layers and the pixel defining layer on the base substrate have an overlapping region; controlling the heat-generating material to generate heat under specified conditions, and allowing a material of the first carrier transport layer to mix with a material of the second carrier transport layer in the overlapping region.Type: GrantFiled: June 5, 2019Date of Patent: December 22, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Zhengyin Xu
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Publication number: 20200127067Abstract: A display substrate, a manufacturing method thereof and a display device are disclosed. The method includes: forming a pixel defining layer being doped with a heat-generating material capable of generating heat under specified conditions; sequentially forming a first carrier transport layer, a light-emitting material layer and a second carrier transport layer, wherein orthographic projections of the first and second carrier transport layers and the pixel defining layer on the base substrate have an overlapping region; controlling the heat-generating material to generate heat under specified conditions, and allowing a material of the first carrier transport layer to mix with a material of the second carrier transport layer in the overlapping region.Type: ApplicationFiled: June 5, 2019Publication date: April 23, 2020Inventor: Zhengyin XU
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Patent number: 10355022Abstract: A thin film transistor, a method for fabricating the same, an array substrate, and a display device are provided. The method comprises forming an active layer on a substrate, wherein source-and-drain-to-be-formed regions of the active layer are thicker than a semiconductor region between the source-and-drain-to-be-formed regions, and by a patterning process, forming a gate on the active layer, and forming a pattern of source and drain in the source-and-drain-to-be-formed regions of the active layer.Type: GrantFiled: December 28, 2016Date of Patent: July 16, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Min, Xiaolong Li, Zhengyin Xu, Tao Gao, Dong Li, Shuai Zhang
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Patent number: 10355107Abstract: The present application discloses a method of fabricating a polycrystalline silicon thin film transistor, the method including forming an amorphous silicon layer on a base substrate having a pattern corresponding to a polycrystalline silicon active layer of the thin film transistor; the amorphous silicon layer having a first region corresponding to a source electrode and drain electrode contact region in the polycrystalline silicon active layer and a second region corresponding to a channel region in the polycrystalline silicon active layer; forming a first dopant layer on a side of the second region distal to the base substrate; forming a second dopant layer on a side of the first region distal to the base substrate; and crystallizing the amorphous silicon layer, the first dopant layer, and the second dopant layer to form the polycrystalline silicon active layer, the polycrystalline silicon active layer being doped with a dopant of the first dopant layer in the second region and doped with a dopant of the seType: GrantFiled: July 25, 2016Date of Patent: July 16, 2019Assignee: BOE Technology Group Co., Ltd.Inventors: Jian Min, Xiaolong Li, Tao Gao, Liangjian Li, Zhengyin Xu
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Publication number: 20190206946Abstract: A display substrate, display device and manufacturing method of display substrate are provided. The display substrate includes: base substrate, and pixel defining pattern, heating circuit pattern, light-emitting layer and auxiliary light-emitting layer on one side of the base substrate.Type: ApplicationFiled: July 26, 2018Publication date: July 4, 2019Inventors: Zhengyin XU, Qingyun Bai
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Patent number: 10249735Abstract: The present disclosure provides a TFT, its manufacturing method, an array substrate and a display device. The method includes steps of: forming a pattern of a gate electrode on a base substrate; forming a gate insulation layer with an even surface; forming a pattern of a polysilicon semiconductor layer; and forming patterns of a source electrode and a drain electrode. The step of forming the pattern of the polysilicon semiconductor layer includes: crystallizing the amorphous silicon layer, so as to form the polysilicon semiconductor layer.Type: GrantFiled: August 15, 2016Date of Patent: April 2, 2019Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian Min, Xiaolong Li, Zhengyin Xu, Ping Song, Youwei Wang
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Patent number: 10147901Abstract: A packaging method, a display panel, and a display apparatus. The packaging method comprises steps of: forming a frit layer in a packaging area of a first substrate; forming at least a metal thin film and/or at least a silicon thin film on the frit layer formed on the first substrate, and forming at least a metal thin film and/or at least a silicon thin film in a packaging area of a second substrate, wherein one of the outermost thin film formed on the frit layer and the outermost thin film formed is a metal thin film, and the other is a silicon thin film; and vacuum laminating the first substrate and the second substrate, without the use of a laser to irradiate the frit layer during the packaging.Type: GrantFiled: August 19, 2015Date of Patent: December 4, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Rui Hong, Dan Wang, Zhengyin Xu
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Publication number: 20180331206Abstract: The present application discloses a method of fabricating a polycrystalline silicon thin film transistor, the method including forming an amorphous silicon layer on a base substrate having a pattern corresponding to a polycrystalline silicon active layer of the thin film transistor; the amorphous silicon layer having a first region corresponding to a source electrode and drain electrode contact region in the polycrystalline silicon active layer and a second region corresponding to a channel region in the polycrystalline silicon active layer; forming a first dopant layer on a side of the second region distal to the base substrate; forming a second dopant layer on a side of the first region distal to the base substrate; and crystallizing the amorphous silicon layer, the first dopant layer, and the second dopant layer to form the polycrystalline silicon active layer, the polycrystalline silicon active layer being doped with a dopant of the first dopant layer in the second region and doped with a dopant of the seType: ApplicationFiled: July 25, 2016Publication date: November 15, 2018Applicant: BOE Technology Group Co., Ltd.Inventors: Jian MIN, Xiaolong LI, Tao GAO, Liangjian LI, Zhengyin XU
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Publication number: 20170271615Abstract: The present disclosure provides a screen-printing mask for manufacturing a substrate for packaging a display panel. The screen-printing mask includes a first pattern with a continuous loop shaped groove surrounding a first area; and a second pattern with grooves forming a discontinuous loop surrounding the first pattern, wherein the first pattern is configured to form a sealing loop for the display panel, and the second pattern is configured to form a supporting loop to provide support for the first pattern in a display panel packaging process.Type: ApplicationFiled: September 15, 2015Publication date: September 21, 2017Inventor: ZHENGYIN XU
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Publication number: 20170256631Abstract: The present disclosure provides a TFT, its manufacturing method, an array substrate and a display device. The method includes steps of: forming a pattern of a gate electrode on a base substrate; forming a gate insulation layer with an even surface; forming a pattern of a polysilicon semiconductor layer; and forming patterns of a source electrode and a drain electrode. The step of forming the pattern of the polysilicon semiconductor layer includes: crystallizing the amorphous silicon layer, so as to form the polysilicon semiconductor layer.Type: ApplicationFiled: August 15, 2016Publication date: September 7, 2017Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jian MIN, Xiaolong LI, Zhengyin XU, Ping SONG, Youwei WANG
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Publication number: 20170200745Abstract: A thin film transistor, a method for fabricating the same, an array substrate, and a display device are provided. The method comprises forming an active layer on a substrate, wherein source-and-drain-to-be-formed regions of the active layer are thicker than a semiconductor region between the source-and-drain-to-be-formed regions, and by a patterning process, forming a gate on the active layer, and forming a pattern of source and drain in the source-and-drain-to-be-formed regions of the active layer.Type: ApplicationFiled: December 28, 2016Publication date: July 13, 2017Inventors: Jian MIN, Xiaolong LI, Zhengyin XU, Tao GAO, Dong LI, Shuai ZHANG
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Publication number: 20170186994Abstract: The present disclosure provides a method for packaging an organic light-emitting diode (OLED) display panel. The method includes providing a first substrate and a second substrate; forming a first bonding layer in a packaging region of the first substrate; and forming a second bonding layer in a packaging region of the second substrate. The method also includes bonding the first substrate with the second substrate by molecular bonding between the first bonding layer and the second bonding layer.Type: ApplicationFiled: December 10, 2015Publication date: June 29, 2017Inventor: ZHENGYIN XU
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Publication number: 20160372696Abstract: A packaging method, a display panel and a display apparatus. The packaging method comprises steps of: forming a frit layer in a packaging area of a first substrate; forming at least a metal thin film and/or at least a silicon thin film on the frit layer formed on the first substrate, and forming at least a metal thin film and/or at least a silicon thin film in a packaging area of a second substrate, wherein one of the outermost thin film formed on the frit layer and the outermost thin film formed is a metal thin film, and the other is a silicon thin film; and vacuum laminating the first substrate and the second substrate, without the use of a laser to irradiate the frit layer during the packaging.Type: ApplicationFiled: August 19, 2015Publication date: December 22, 2016Inventors: Rui Hong, Dan Wang, Zhengyin Xu