Patents by Inventor Kangle CHANG
Kangle CHANG 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: 11960167Abstract: A backplane includes: a substrate including a circuit structure layer, a first reflective layer disposed on a bearing surface of the substrate, a plurality of light-emitting diode chips, and a plurality of optical structures. The first reflective layer includes a plurality of through holes spaced apart. A light-emitting diode chip in the plurality of light-emitting diode chips is located in one of the plurality of through holes. The plurality of light-emitting diode chips are electrically connected to the circuit structure layer. The circuit structure layer is configured to drive the plurality of light-emitting diode chips to emit light. An optical structure in the plurality of optical structures covers the light-emitting diode chip, a light incident surface of the optical structure is in contact with a light exit surface of the light-emitting diode chip, and a light exit surface of the optical structure is a curved surface.Type: GrantFiled: February 5, 2021Date of Patent: April 16, 2024Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pei Li, Haiwei Sun, Ming Zhai, Lu Yu, Kangle Chang, Jinpeng Li, Pengjun Cao, Yutao Hao, Shubai Zhang, Shuo Wang, Pei Qin, Zewen Gao, Yali Zhang
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Patent number: 11880058Abstract: A side-type backlight module includes a light guide plate and a reverse prism sheet that are stacked. The reverse prism sheet includes a first prism. A surface of the first prism proximate to the light guide plate includes a plurality of prism structures substantially parallel to each other. Each prism structure protrudes toward a direction approaching the light guide plate. A surface of the light guide plate proximate to the reverse prism sheet includes a plurality of strip-shaped microstructures substantially parallel to each other. Each strip-shaped microstructure protrudes toward a direction approaching the reverse prism sheet. An extending direction of the prism structure crosses an extending direction of the strip-shaped microstructure.Type: GrantFiled: April 23, 2021Date of Patent: January 23, 2024Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pengfei Cheng, Jingfu Tao, Lu Yu, Kangle Chang, Jinzhao Zhou, Jian Sang, Heling Zhu, Yinwei Chen
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Publication number: 20230343895Abstract: A light emitting substrate, comprising a base substrate, a retaining wall disposed on the base substrate, and a plurality of light emitting diodes. The retaining wall defines a plurality of partitions on the base substrate, and at least one light emitting diode is provided in at least one partition.Type: ApplicationFiled: February 10, 2022Publication date: October 26, 2023Inventors: Pengjun CAO, Pei LI, Jinpeng LI, Jian LI, Teng ZHANG, Kangle CHANG, Zhaohui LI, Zhifu YANG
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Publication number: 20230237755Abstract: A texture recognition device and a display device are provided. The texture recognition device includes a backlight element, configured to provide first backlight; a light constraint element, configured to perform a light divergence angle constraint process on the first backlight to obtain second backlight with a divergence angle within a preset angle range, the second backlight being transmitted to a detection object; and a photosensitive element, configured to detect the second backlight reflected by a texture of the detection object to recognize a texture image of the texture of the detection object.Type: ApplicationFiled: March 28, 2023Publication date: July 27, 2023Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu TAO, Pengfei CHENG, Lu YU, Kangle CHANG, Heling ZHU, Jian SANG, Chuandong LIAO, Yinwei CHEN, Jingang LIU
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Patent number: 11663800Abstract: A texture recognition device and a display device are provided. The texture recognition device includes a backlight element, configured to provide first backlight; a light constraint element, configured to perform a light divergence angle constraint process on the first backlight to obtain second backlight with a divergence angle within a preset angle range, the second backlight being transmitted to a detection object; and a photosensitive element, configured to detect the second backlight reflected by a texture of the detection object to recognize a texture image of the texture of the detection object.Type: GrantFiled: May 19, 2022Date of Patent: May 30, 2023Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu Tao, Pengfei Cheng, Lu Yu, Kangle Chang, Heling Zhu, Jian Sang, Chuandong Liao, Yinwei Chen, Jingang Liu
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Publication number: 20220373730Abstract: A side-type backlight module includes a light guide plate and a reverse prism sheet that are stacked. The reverse prism sheet includes a first prism. A surface of the first prism proximate to the light guide plate includes a plurality of prism structures substantially parallel to each other. Each prism structure protrudes toward a direction approaching the light guide plate. A surface of the light guide plate proximate to the reverse prism sheet includes a plurality of strip-shaped microstructures substantially parallel to each other. Each strip-shaped microstructure protrudes toward a direction approaching the reverse prism sheet. An extending direction of the prism structure crosses an extending direction of the strip-shaped microstructure.Type: ApplicationFiled: April 23, 2021Publication date: November 24, 2022Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pengfei CHENG, Jingfu TAO, Lu YU, Kangle CHANG, Jinzhao ZHOU, Jian SANG, Heling ZHU, Yinwei CHEN
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Publication number: 20220375911Abstract: A backboard, comprising a substrate, a first reflecting layer, multiple light-emitting diode chips, and multiple optical structures. The substrate comprises a circuit structure layer. The first reflecting layer is provided on a bearing surface of the substrate, and comprises multiple through holes provided at intervals. One of the multiple light-emitting diode chips is located in one of the multiple through holes, and the multiple light-emitting diode chips is electrically connected to the circuit structure layer. The circuit structure layer is configured to drive the multiple light-emitting diode chips to emit light. One of the multiple optical structures covers a light exit surface of one of the multiple light-emitting diode chips. Light entrance surfaces of the optical structures are in contact with light exit surfaces of the light-emitting diode chips. A light exit surface of the optical structure comprises a curved surface.Type: ApplicationFiled: February 5, 2021Publication date: November 24, 2022Inventors: Pei LI, Haiwei SUN, Ming ZHAI, Lu YU, Kangle CHANG, Jinpeng LI, Pengjun CAO, Yutao HAO, Shubai ZHANG, Shuo WANG, Pei QIN, Zewen GAO, Yali ZHANG
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Publication number: 20220277584Abstract: A texture recognition device and a display device are provided. The texture recognition device includes a backlight element, configured to provide first backlight; a light constraint element, configured to perform a light divergence angle constraint process on the first backlight to obtain second backlight with a divergence angle within a preset angle range, the second backlight being transmitted to a detection object; and a photosensitive element, configured to detect the second backlight reflected by a texture of the detection object to recognize a texture image of the texture of the detection object.Type: ApplicationFiled: May 19, 2022Publication date: September 1, 2022Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu TAO, Pengfei CHENG, Lu YU, Kangle CHANG, Heling ZHU, Jian SANG, Chuandong LIAO, Yinwei CHEN, Jingang LIU
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Patent number: 11409152Abstract: An anti-peeping module provided by an embodiment of the application includes a plurality of light transmitting films, each including at least two light transmitting sub-films having different refractive indexes which are disposed in a laminated manner, and a first optical path modulating layer on one side of the plurality of light transmitting films, the first optical path modulating layer comprising a plurality of zigzag structures, the and being configured to allow light entering into the plurality of light transmitting films at a Brewster incident angle to exit from the anti-peeping module in a travelling direction perpendicular to a plane where the anti-peeping module is located.Type: GrantFiled: June 24, 2020Date of Patent: August 9, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Kangle Chang, Pengfei Cheng, Heling Zhu, Lu Yu, Jian Sang
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Patent number: 11380129Abstract: A texture recognition device and a display device are provided. The texture recognition device includes a backlight element, configured to provide first backlight; a light constraint element, configured to perform a light divergence angle constraint process on the first backlight to obtain second backlight with a divergence angle within a preset angle range, the second backlight being transmitted to a detection object; and a photosensitive element, configured to detect the second backlight reflected by a texture of the detection object to recognize a texture image of the texture of the detection object.Type: GrantFiled: September 4, 2019Date of Patent: July 5, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu Tao, Pengfei Cheng, Lu Yu, Kangle Chang, Heling Zhu, Jian Sang, Chuandong Liao, Yinwei Chen, Jingang Liu
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Patent number: 11334742Abstract: The present disclosure discloses a fingerprint identification method and apparatus, an electronic device, and a computer-readable storage medium. The fingerprint identification method includes: acquiring a touch position of an object on a display panel comprising a backlight module having a plurality of light emitting elements arranged into an array, in response to the object on the display panel; lighting at least one of the plurality of light emitting elements according to the touch position; collecting fingerprint information from the display panel, wherein the fingerprint information is obtained based on light which is emitted by the at least one lit light emitting element and is reflected by the object; and performing fingerprint identification according to the fingerprint information.Type: GrantFiled: June 29, 2020Date of Patent: May 17, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu Tao, Pengfei Cheng, Lu Yu, Jian Sang, Kangle Chang
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Publication number: 20220052225Abstract: A display substrate includes a base, a plurality of light-emitting devices disposed on a side of the base, and a light adjustment layer. The plurality of light-emitting devices are spaced apart from each other. At least part of the light adjustment layer is located in gaps among the plurality of light-emitting devices, so that side walls of at least one of the plurality of light-emitting devices are surrounded by the light adjustment layer. A material of the light adjustment layer includes a light-absorbing material. The light adjustment layer is configured to absorb light incident on the light adjustment layer.Type: ApplicationFiled: January 23, 2020Publication date: February 17, 2022Inventors: Kangle CHANG, Pei LI, Jinpeng LI, Lu YU, Jian SANG, Haiwei SUN, Ming CHEN
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Publication number: 20210406496Abstract: A texture recognition device and a display device are provided. The texture recognition device includes a backlight element, configured to provide first backlight; a light constraint element, configured to perform a light divergence angle constraint process on the first backlight to obtain second backlight with a divergence angle within a preset angle range, the second backlight being transmitted to a detection object; and a photosensitive element, configured to detect the second backlight reflected by a texture of the detection object to recognize a texture image of the texture of the detection object.Type: ApplicationFiled: September 4, 2019Publication date: December 30, 2021Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jingfu TAO, Pengfei CHENG, Lu YU, Kangle CHANG, Heling ZHU, Jian SANG, Chuandong LIAO, Yinwei CHEN, Jingang LIU
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Publication number: 20210286965Abstract: The present disclosure discloses a fingerprint identification method and apparatus, an electronic device, and a computer-readable storage medium. The fingerprint identification method includes: acquiring a touch position of an object on a display panel comprising a backlight module having a plurality of light emitting elements arranged into an array, in response to the object on the display panel; lighting at least one of the plurality of light emitting elements according to the touch position; collecting fingerprint information from the display panel, wherein the fingerprint information is obtained based on light which is emitted by the at least one lit light emitting element and is reflected by the object; and performing fingerprint identification according to the fingerprint information.Type: ApplicationFiled: June 29, 2020Publication date: September 16, 2021Inventors: Jingfu Tao, Pengfei Cheng, Lu Yu, Jian Sang, Kangle Chang
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Publication number: 20210191192Abstract: The present disclosure provides an optical adjusting film, a backlight module and a display device. The optical adjusting film according to the present disclosure includes a first substrate and a second substrate opposite to each other; a first electrode layer on a side of the first substrate facing the second substrate; a second electrode layer on a side of the second substrate facing the first substrate; a polymer dispersed liquid crystal layer between the first electrode layer and the second electrode layer; and an anti-adsorption surface layer on a side of the first substrate away from the second substrate, and/or a side of the second substrate away from the first substrate, and configured to suppress adsorption between the optical adjusting film and a solid surface.Type: ApplicationFiled: July 22, 2020Publication date: June 24, 2021Inventors: Heling ZHU, Xin LI, Jian SANG, Shubai ZHANG, Kangle CHANG, Lu YU
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Publication number: 20210033899Abstract: An anti-peeping module provided by an embodiment of the application includes a plurality of light transmitting films, each including at least two light transmitting sub-films having different refractive indexes which are disposed in a laminated manner, and a first optical path modulating layer on one side of the plurality of light transmitting films, the first optical path modulating layer comprising a plurality of zigzag structures, the and being configured to allow light entering into the plurality of light transmitting films at a Brewster incident angle to exit from the anti-peeping module in a travelling direction perpendicular to a plane where the anti-peeping module is located.Type: ApplicationFiled: June 24, 2020Publication date: February 4, 2021Inventors: Kangle CHANG, Pengfei CHENG, Heling ZHU, Lu YU, Jian SANG