Patents by Inventor Zhuhui LI
Zhuhui LI 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: 11919824Abstract: Disclosed are a silicon nitride ceramic sintered body and preparation method thereof. The silicon nitride ceramic sintered body includes a sintered bulk and a hard surface layer having a thickness of 10-1000 ?m, formed on a surface of the sintered bulk, wherein the sintered bulk comprises a first silicon nitride crystalline phase and a first grain boundary phase; the hard surface layer comprises a second silicon nitride crystalline phase and a second grain boundary phase; the first grain boundary phase comprises a metal tungsten phase being tungsten elementary substance and/or a tungsten alloy; the second grain boundary phase comprises tungsten carbide particles; tungsten element in the metal tungsten phase accounts for 80-100 wt % of total tungsten element in the first grain boundary phase; and tungsten element in the tungsten carbide particles accounts for 60-100 wt % of total tungsten element in the second grain boundary phase.Type: GrantFiled: May 19, 2023Date of Patent: March 5, 2024Assignees: Lanzhou Institute of Chemical Physics, CAS, Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Shandong Laboratory of Yantai Advanced Materials and Green ManufacturingInventors: Zhuhui Qiao, Lujie Wang, Tongyang Li, Ziyue Wang, Yuan Yu, Huaguo Tang
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Patent number: 11921375Abstract: A mini light-emitting diode (mini-LED) backlight module, a manufacturing method thereof, and a display panel are provided. A plurality of backlight partitions are defined on a flexible substrate to improve brightness uniformity. A plurality of mini-LEDs arranged in an array in each of the backlight partitions are formed into parallel modules, so that a driving voltage and current of the backlight module can be within an appropriate range. The flexible substrate is further arranged with a first metal pattern, and signals can be independently input to each of the mini-LEDs through each of first sub-metal patterns, reducing metal trace resistance of the backlight module, and further improving brightness uniformity of the backlight module.Type: GrantFiled: August 4, 2020Date of Patent: March 5, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhuhui Li
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Publication number: 20240063197Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes a driving substrate, a first light-emitting device layer disposed on a side of the driving substrate, and a second light-emitting device layer disposed on a side the driving substrate away from the first light-emitting device layer. The first light-emitting device layer includes a plurality of first light-emitting devices. The second light-emitting device layer includes a plurality of second light-emitting devices. The driving substrate includes a plurality of driving thin-film transistors. A driving thin-film transistor is connected to a first light-emitting device and a second light-emitting device. The first light-emitting device layer and the second light-emitting device layer are respectively disposed on two sides of the driving substrate.Type: ApplicationFiled: December 14, 2022Publication date: February 22, 2024Inventors: Zhuhui Li, Yanfen Li
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Publication number: 20240021628Abstract: A display panel and a manufacturing method thereof, and an electronic terminal are provided and including a driving circuit layer, a planarization layer, an electrode layer, and a light-emitting layer which are stacked from bottom to top. The driving circuit layer includes driving circuits. The planarization layer includes first planarization portions and second planarization portions which are arranged in a same layer. The electrode layer includes electrode groups. The light-emitting layer includes light-emitting devices. The first planarization portion is disposed on a side of the driving circuit close to the electrode layer, and the second planarization portion is disposed on a side of one of the electrode group close to the driving circuit layer. A thickness of the second planarization portion is greater than a thickness of the first planarization portion.Type: ApplicationFiled: July 13, 2022Publication date: January 18, 2024Inventors: Zhuhui LI, Yanfen LI
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Publication number: 20240014362Abstract: The present disclosure provides a display panel and an electronic device, the display panel comprises a substrate and a plurality of light-emitting units, a plurality of power wires, and an auxiliary electrode disposed on the substrate; the power wires extend in a first direction, and are disposed between adjacent light-emitting units, and the power wires are connected to the light-emitting units; and the auxiliary electrode disposed on a surface of the power wires close to or away from the substrate; the power wires comprise a plurality of wire segments, each of the wire segments corresponds to one of the light-emitting units, and each of the wire segments is connected to the auxiliary electrode.Type: ApplicationFiled: October 12, 2021Publication date: January 11, 2024Applicants: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Zhuhui Li, Minggang Liu
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Patent number: 11670641Abstract: The transparent display includes a substrate and a plurality of frame traces. The substrate includes a transparent display region and a frame region defined on a left side, a right side, and an upper side of the transparent display region. The plurality of frame traces are disposed in the frame region, and each frame trace includes a hollow portion and a conductive portion surrounding the hollow portion. B disposing the hollow portion in each frame trace to improve a transmittance of each frame trace, thereby improving a transparency of the frame region, reducing a risk of disconnection, and improving a product yield.Type: GrantFiled: December 4, 2019Date of Patent: June 6, 2023Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Zhuhui Li, Yong Fan
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Publication number: 20230143518Abstract: A mini light-emitting diode (mini-LED) backlight module, a manufacturing method thereof, and a display panel are provided. A plurality of backlight partitions are defined on a flexible substrate to improve brightness uniformity. A plurality of mini-LEDs arranged in an array in each of the backlight partitions are formed into parallel modules, so that a driving voltage and current of the backlight module can be within an appropriate range. The flexible substrate is further arranged with a first metal pattern, and signals can be independently input to each of the mini-LEDs through each of first sub-metal patterns, reducing metal trace resistance of the backlight module, and further improving brightness uniformity of the backlight module.Type: ApplicationFiled: August 4, 2020Publication date: May 11, 2023Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhuhui LI
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Patent number: 11508759Abstract: A method of manufacturing a flexible array substrate, a flexible array substrate, and a flexible display device are disclosed. The method of manufacturing the flexible array substrate is implemented by using silver nanowire to form an electrically conductive pattern on a flexible substrate. In this manner, using the silver nanowire to replace metal or indium tin oxide as conventionally used to form the electrically conductive pattern can reduce trace resistance, increase panel transmittance, improve bending resistance of the flexible array substrate, avoid line breaks in products, improve production yield, and reduce manufacturing costs of products.Type: GrantFiled: July 22, 2019Date of Patent: November 22, 2022Inventor: Zhuhui Li
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Publication number: 20220336525Abstract: The present application provides a flexible micro-LED display panel and a manufacturing method thereof. The flexible micro-LED display panel includes a first base substrate, a thin film transistor array layer, a first connecting electrode layer, a second connecting electrode layer, a plurality of micro-LED chips, a flexible encapsulation layer, and a second base substrate, wherein the first base substrate and the second base substrate are flexible substrates, the second base substrate is provided on the flexible encapsulation layer covering the micro-LED chips to make a neutral layer of the panel to be located at the thin film transistor array layer, reducing a risk of wiring disconnection.Type: ApplicationFiled: December 30, 2020Publication date: October 20, 2022Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhuhui LI
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Patent number: 11411149Abstract: The present invention discloses an array substrate, a display panel, and a manufacturing method of the display panel. The display panel includes the array substrate and a light-emitting element. The array substrate includes a substrate layer, a driving circuit layer, and a cover layer stacked in order from bottom to top. The cover layer is a gray light-absorbing material for absorbing ambient light and reflected light of the driving circuit layer.Type: GrantFiled: April 29, 2020Date of Patent: August 9, 2022Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhuhui Li
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Publication number: 20220037375Abstract: A method of manufacturing a flexible array substrate, a flexible array substrate, and a flexible display device are disclosed. The method of manufacturing the flexible array substrate is implemented by using silver nanowire to form an electrically conductive pattern on a flexible substrate. In this manner, using the silver nanowire to replace metal or indium tin oxide as conventionally used to form the electrically conductive pattern can reduce trace resistance, increase panel transmittance, improve bending resistance of the flexible array substrate, avoid line breaks in products, improve production yield, and reduce manufacturing costs of products.Type: ApplicationFiled: July 22, 2019Publication date: February 3, 2022Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Zhuhui LI
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Publication number: 20210366935Abstract: The present invention provides a transparent display and a manufacturing method thereof. The transparent display includes a substrate and a plurality of frame traces. The substrate includes a transparent display region and a frame region surrounding the transparent display region. The plurality of frame traces are disposed in the frame region, and each frame trace includes a hollow portion and a conductive portion surrounding the hollow portion. By disposing the hollow portion in each the frame trace to improve a transmittance of each the frame trace, thereby improving a transparency of the frame region, reducing a risk of disconnection, and improving a product yield.Type: ApplicationFiled: December 4, 2019Publication date: November 25, 2021Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Zhuhui LI, Yong FAN
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Publication number: 20210288231Abstract: The present invention discloses an array substrate, a display panel, and a manufacturing method of the display panel. The display panel includes the array substrate and a light-emitting element. The array substrate includes a substrate layer, a driving circuit layer, and a cover layer stacked in order from bottom to top. The cover layer is a gray light-absorbing material for absorbing ambient light and reflected light of the driving circuit layer.Type: ApplicationFiled: April 29, 2020Publication date: September 16, 2021Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Zhuhui LI