Patents by Inventor Hongming ZHAN
Hongming ZHAN 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: 11971627Abstract: Provided are a display panel and a method for preparing same, and a display apparatus. The display panel includes an array substrate and an opposite substrate, which are oppositely arranged, and a liquid crystal layer, which is arranged between the array substrate and the opposite substrate, wherein a compensation layer is arranged on the array substrate or the opposite substrate, and an included angle between an optical axis direction of the compensation layer and an initial optical axis direction of liquid crystal molecules in the liquid crystal layer is less than or equal to 10 degrees; dispersion characteristics of the liquid crystal layer and the compensation layer are the opposite of each other.Type: GrantFiled: April 26, 2021Date of Patent: April 30, 2024Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Feifei Wang, Hongming Zhan, Xibin Shao, Lintao Ji
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Patent number: 11921376Abstract: A liquid crystal display panel includes: a first base, a second base disposed opposite to the first base, a liquid crystal layer and a first optical compensation layer that are disposed between the first base and the second base, and a second optical compensation layer disposed on a side of the first base away from the liquid crystal layer or on a side of the second base away from the liquid crystal layer. An orthogonal projection of an optic axis of the first optical compensation layer on the first base is parallel to orthogonal projections of optic axes of liquid crystal molecules in the liquid crystal layer on the first base. An orthogonal projection of an optic axis of the second optical compensation layer on the first base is perpendicular to the orthogonal projection of the optic axis of the first optical compensation layer on the first base.Type: GrantFiled: January 29, 2021Date of Patent: March 5, 2024Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTDInventors: Lintao Ji, Feifei Wang, Kaixuan Wang, Hongming Zhan, Bowen Li, Jiao Li, Xibin Shao
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Patent number: 11899304Abstract: A liquid crystal display panel (100) comprises a first polarizer (110) and a second polarizer (170), a first liquid crystal layer (130) disposed between the first polarizer (110) and the second polarizer (170), and an optical compensation layer (140) disposed between the first liquid crystal layer (130) and one of the first polarizer (110) and the second polarizer (170). A transmission axis of the first polarizer (110) is perpendicular to a transmission axis of the second polarizer (170). The first liquid crystal layer (130) includes first liquid crystal molecules (130?). An included angle (?) between an orthographic projection of an optical axis of a first liquid crystal molecule (130?) on the first polarizer (110), which is perpendicular to an orthographic projection of an optical axis of the optical compensation layer (140) on the first polarizer (110), and the transmission axis of the first polarizer (110) is an acute angle.Type: GrantFiled: June 15, 2021Date of Patent: February 13, 2024Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feifei Wang, Lintao Ji, Bowen Li, Hongming Zhan, Kaixuan Wang, Xibin Shao
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Patent number: 11868009Abstract: A liquid crystal display panel includes a first polarizer, a second polarizer, a liquid crystal layer including first liquid crystal molecules, a first optical compensation layer between the liquid crystal layer and any of the first polarizer and the second polarizer, a second optical compensation layer on a same side of the liquid crystal layer as the first optical compensation layer. In a non-powered state of the liquid crystal display panel orthographic projections of optical axes of the first liquid crystal molecules on the first polarizer, which are perpendicular to an orthographic projection of an optical axis of the first optical compensation layer on the first polarizer, are parallel to any of transmission axes of the first polarizer and the second polarizer that are perpendicular to each other. An optical axis of the second optical compensation layer is perpendicular to a plane where the second optical compensation layer is located.Type: GrantFiled: December 28, 2020Date of Patent: January 9, 2024Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bowen Li, Feifei Wang, Hongming Zhan, Kaixuan Wang, Lintao Ji, Xinli Ma, Xiaofeng Yin
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Patent number: 11829035Abstract: A display apparatus includes an array substrate; a counter substrate facing the array substrate; a liquid crystal layer between the array substrate and the counter substrate; at least one optical compensation film between the array substrate and the counter substrate, extending throughout a display area of the display apparatus; a control electrode between the array substrate and the counter substrate, extending throughout the display area of the display apparatus; and a back light configured to provide light for image display. The liquid crystal layer in a dark state has a first phase retardation. Under control of the control electrode, the at least one optical compensation film gives a second phase retardation when the liquid crystal layer is in the dark state. A sum of the first phase retardation and the second phase retardation is substantially same as an integral multiple of a wavelength of light emitted from the back light.Type: GrantFiled: November 15, 2019Date of Patent: November 28, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Feifei Wang, Xibin Shao, Hongming Zhan, Lintao Ji, Xiaochun Xu
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Publication number: 20230305340Abstract: A liquid crystal display panel includes a first and second base substrates, a liquid crystal layer and an optical compensation layer. In the liquid crystal layer, a first alignment film is configured to anchor a part, proximate to the first alignment film, of second liquid crystal molecules, and a second alignment film is configured to anchor a part, proximate to the second alignment film, of the second liquid crystal molecules. In the optical compensation layer, a third alignment film is configured to anchor first liquid crystal molecules proximate to the third alignment film. A direction of orthogonal projections of long axes of the first liquid crystal molecules is parallel to a direction of orthogonal projections of long axes of second liquid crystal molecules anchored by the first and second alignment films. Rubbing directions of the first alignment film, the second alignment film and the third alignment film are the same.Type: ApplicationFiled: May 31, 2023Publication date: September 28, 2023Inventors: Feifei WANG, Hongming ZHAN, Xibin SHAO, Lintao JI, Bowen LI
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Patent number: 11703719Abstract: A liquid crystal display panel includes a first and second base substrates, a liquid crystal layer and an optical compensation layer. In the liquid crystal layer, a first alignment film is configured to make a part of second liquid crystal molecules proximate to the first alignment film have a first pretilt angle, a second alignment film is configured to make a part of second liquid crystal molecules proximate to the second alignment film have a second pretilt angle. In the optical compensation layer, a third alignment film is configured to make first liquid crystal molecules proximate to the third alignment film have a third pretilt angle. A direction of orthogonal projections of long axes of the first liquid crystal molecules is parallel to or perpendicular to a direction of orthogonal projections of long axes of second liquid crystal molecules anchored by the first alignment film and the second alignment film.Type: GrantFiled: January 5, 2021Date of Patent: July 18, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feifei Wang, Hongming Zhan, Xibin Shao, Lintao Ji, Bowen Li
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Publication number: 20230221599Abstract: A liquid crystal display panel includes: a first polarizer, a second polarizer, a liquid crystal layer including first liquid crystal molecules, a first optical compensation layer between the liquid crystal layer and any of the first polarizer and the second polarizer, a second optical compensation layer on a same side of the liquid crystal layer as the first optical compensation layer. In a non-powered state of the liquid crystal display panel, orthographic projections of optical axes of the first liquid crystal molecules on the first polarizer, which are perpendicular to an orthographic projection of an optical axis of the first optical compensation layer on the first polarizer, are parallel to any of transmission axes of the first polarizer and the second polarizer that are perpendicular to each other. An optical axis of the second optical compensation layer is perpendicular to a plane where the second optical compensation layer is located.Type: ApplicationFiled: December 28, 2020Publication date: July 13, 2023Inventors: Bowen LI, Feifei WANG, Hongming ZHAN, Kaixuan WANG, Lintao JI, Xinli MA, Xiaofeng YIN
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Publication number: 20230147432Abstract: A display apparatus includes an array substrate; a counter substrate facing the array substrate; a liquid crystal layer between the array substrate and the counter substrate; at least one optical compensation film between the array substrate and the counter substrate, extending throughout a display area of the display apparatus; a control electrode between the array substrate and the counter substrate, extending throughout the display area of the display apparatus; and a back light configured to provide light for image display. The liquid crystal layer in a dark state has a first phase retardation. Under control of the control electrode, the at least one optical compensation film gives a second phase retardation when the liquid crystal layer is in the dark state. A sum of the first phase retardation and the second phase retardation is substantially same as an integral multiple of a wavelength of light emitted from the back light.Type: ApplicationFiled: November 15, 2019Publication date: May 11, 2023Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Feifei Wang, Xibin Shao, Hongming Zhan, Lintao Ji, Xiaochun Xu
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Publication number: 20230078699Abstract: A liquid crystal display panel includes: a first base, a second base disposed opposite to the first base, a liquid crystal layer and a first optical compensation layer that are disposed between the first base and the second base, and a second optical compensation layer disposed on a side of the first base away from the liquid crystal layer or on a side of the second base away from the liquid crystal layer. An orthogonal projection of an optic axis of the first optical compensation layer on the first base is parallel to orthogonal projections of optic axes of liquid crystal molecules in the liquid crystal layer on the first base. An orthogonal projection of an optic axis of the second optical compensation layer on the first base is perpendicular to the orthogonal projection of the optic axis of the first optical compensation layer on the first base.Type: ApplicationFiled: January 29, 2021Publication date: March 16, 2023Inventors: Lintao JI, Feifei WANG, Kaixuan WANG, Hongming ZHAN, Bowen LI, Jiao LI, Xibin SHAO
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Publication number: 20220413337Abstract: A liquid crystal display panel (100) comprises a first polarizer (110) and a second polarizer (170), a first liquid crystal layer (130) disposed between the first polarizer (110) and the second polarizer (170), and an optical compensation layer (140) disposed between the first liquid crystal layer (130) and one of the first polarizer (110) and the second polarizer (170). A transmission axis of the first polarizer (110) is perpendicular to a transmission axis of the second polarizer (170). The first liquid crystal layer (130) includes first liquid crystal molecules (130?).Type: ApplicationFiled: June 15, 2021Publication date: December 29, 2022Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feifei WANG, Lintao JI, Bowen LI, Hongming ZHAN, Kaixuan WANG, Xibin SHAO
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Patent number: 11499056Abstract: The present application discloses a display substrate. The display substrate includes a base substrate; a color filter on the base substrate and including a plurality of color filter blocks; and an actuator configured to actuate each of the plurality of color filter blocks thereby controlling a wavelength of light transmitted through each of the plurality of color filter blocks.Type: GrantFiled: January 9, 2018Date of Patent: November 15, 2022Assignees: Beijing BOE Technology Development Co., Ltd., Beijing BOE Display Technology Co., Ltd.Inventors: Feifei Wang, Ping Song, Deqiang Liu, Hebin Zhao, Hongming Zhan, Xibin Shao
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Patent number: 11467445Abstract: A display panel and a display device are disclosed. The display panel includes liquid crystal display panel, and a light control panel that are stacked; the liquid crystal display panel includes first mesh lines extending along a first direction and second mesh lines extending along a second direction intersecting with the first direction that define color subpixel units; the light control panel allows back light to be enter the liquid crystal display panel after passing through the light control panel, and includes first signal lines extending along the first direction and second signal lines extending along the second direction that define light control units; N color subpixel units continuously arranged and respectively displaying different colors constitute one pixel unit; N is a positive integer; along the first direction, a maximum length of one light control unit is m times a maximum length of one pixel unit; m is a non-integer.Type: GrantFiled: September 8, 2020Date of Patent: October 11, 2022Assignees: Beijing Boe Display Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.Inventors: Hao Liu, Ruichen Zhang, Kaixuan Wang, Hongming Zhan, Xi Chen
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Publication number: 20220260878Abstract: Provided are a display panel and a method for preparing same, and a display apparatus. The display panel includes an array substrate and an opposite substrate, which are oppositely arranged, and a liquid crystal layer, which is arranged between the array substrate and the opposite substrate, wherein a compensation layer is arranged on the array substrate or the opposite substrate, and an included angle between an optical axis direction of the compensation layer and an initial optical axis direction of liquid crystal molecules in the liquid crystal layer is less than or equal to 10 degrees; dispersion characteristics of the liquid crystal layer and the compensation layer are the opposite of each other.Type: ApplicationFiled: April 26, 2021Publication date: August 18, 2022Inventors: Feifei WANG, Hongming ZHAN, Xibin SHAO, Lintao JI
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Publication number: 20220252942Abstract: A display panel, including an array substrate and an opposite substrate that are arranged opposite to each other, and a liquid crystal layer. A color filter layer and a compensation layer are provided on the array substrate or the opposite substrate; the color filter layer includes n color filter units that are periodically arranged; the compensation layer includes n compensation units; and the ith compensation unit is configured to enable the sum of the phase retardation of the light of an ith color passing through the ith compensation unit and the phase retardation of the light of the ith color passing through the liquid crystal layer is an integer multiple of the wavelength of the light of the ith color. Further disclosed are a display apparatus including the display panel, and a manufacturing method for the display panel.Type: ApplicationFiled: March 8, 2021Publication date: August 11, 2022Inventors: Feifei WANG, Hongming ZHAN, Xibin SHAO
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Patent number: 11326101Abstract: A liquid crystal panel and a manufacture method thereof, a liquid crystal display device are disclosed. The manufacture method of a liquid crystal panel includes: providing a first substrate, a second substrate and a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer includes a liquid crystal material and photopolymerizable monomers; and exposing the liquid crystal layer to allow the photopolymerizable monomers to be polymerized at a position of exposing to form a columnar spacer.Type: GrantFiled: November 17, 2017Date of Patent: May 10, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Xibin Shao, Feifei Wang, Hongming Zhan, Ping Song, Deqiang Liu
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Publication number: 20220050338Abstract: A liquid crystal display panel includes a first and second base substrates, a liquid crystal layer and an optical compensation layer. In the liquid crystal layer, a first alignment film is configured to make a part of second liquid crystal molecules proximate to the first alignment film have a first pretilt angle, a second alignment film is configured to make a part of second liquid crystal molecules proximate to the second alignment film have a second pretilt angle. In the optical compensation layer, a third alignment film is configured to make first liquid crystal molecules proximate to the third alignment film have a third pretilt angle. A direction of orthogonal projections of long axes of the first liquid crystal molecules is parallel to or perpendicular to a direction of orthogonal projections of long axes of second liquid crystal molecules anchored by the first alignment film and the second alignment film.Type: ApplicationFiled: January 5, 2021Publication date: February 17, 2022Inventors: Feifei WANG, Hongming ZHAN, Xibin SHAO, Lintao JI, Bowen LI
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Patent number: 11244642Abstract: Disclosed are a display panel, a display device, and a method for driving the same. The display panel includes a plurality of data lines extending in a first direction, and at least one signal compensation line extending in a second direction, insulated from and intersecting with the plurality of data lines, a compensation capacitor is arranged at a position where the plurality of data lines intersect with the signal compensation line, and one terminal of the compensation capacitor is connected with one of the plurality of data lines, and the other terminal of the compensation capacitor is connected with the signal compensation line.Type: GrantFiled: October 21, 2019Date of Patent: February 8, 2022Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Bo Feng, Shijun Wang, Hongming Zhan, Xi Chen
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Publication number: 20220026760Abstract: The present disclosure relates to a display device. The display device includes a first liquid crystal cell and a second liquid crystal cell disposed opposite to each other, a first polarizer located on a side of the first liquid crystal cell away from the second liquid crystal cell, a second polarizer located on a side of the second liquid crystal cell away from the first liquid crystal cell, and a third polarizer located between the first liquid crystal cell and the second liquid crystal cell, wherein the display device further includes a polarization maintaining diffusion sheet located between the first liquid crystal cell and the second liquid crystal cell.Type: ApplicationFiled: August 9, 2019Publication date: January 27, 2022Inventors: Hongming ZHAN, Xibin SHAO, Ruichen ZHANG, Dongchuan CHEN, Kaixuan WANG
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Patent number: 11217188Abstract: The embodiments of the present disclosure provide a method for displaying an image on a dual-screen display panel. According to an embodiment, the dual-screen display panel comprises a dimming screen and a display screen. The method comprises: generating first image data for the dimming screen according to image data; determining dimming driving voltages for a plurality of dimming areas based on the first image data according to a grayscale-dimming driving voltage relationship; determining display driving voltages for a plurality of display areas based on the image data according to a grayscale-display driving voltage relationship; and driving the dimming screen and the display screen with the determined dimming driving voltages and display driving voltages, respectively, to display the image.Type: GrantFiled: November 16, 2018Date of Patent: January 4, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jun Guo, Cuilan Huang, Luqiang Guo, Jieqiong Wang, Hongming Zhan, Ruichen Zhang