Patents by Inventor Pengfei CHENG
Pengfei CHENG 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: 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: 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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Patent number: 11570343Abstract: The present disclosure provides a floating touch camera module, a display device and a touch method. The floating touch camera module includes: a lens with a light collection surface and a light emitting surface; an image sensor at one side of the light emitting surface of the lens, the image sensor configured to receive light rays from the lens and form sensing information; and an infrared cut filter film at one side of a light incident surface of the image sensor and configured to filter out infrared light rays. The infrared cut filter film is movable relative to the lens between a first position at which the infrared cut filter film directly faces the lens and a second position at which the infrared cut filter film is offset from the lens, thereby enabling the floating touch camera module to switch between a photographing mode and a touch mode.Type: GrantFiled: March 22, 2019Date of Patent: January 31, 2023Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fei Gao, Xuerong Wang, Lingyun Shi, Lu Yu, Lei Chen, Junjie Ma, Xuqing Feng, Pengfei Cheng, Xin Ma, Yuanda Lu, Haixu Li
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Patent number: 11531227Abstract: The present disclosure provides an anti-peep film and a manufacturing method thereof, and a display module. The anti-peep film includes a plurality of transmission areas and a plurality of anti-peep areas, and the plurality of transmission areas and the plurality of anti-peep areas are alternately arranged in a direction perpendicular to a thickness direction of the anti-peep film. At least one anti-peep area of the plurality of anti-peep areas has a set structure, and the set structure enables that light incident on the at least one anti-peep area from a first side in the thickness direction of the anti-peep film is reflected back to the first side through the at least one anti-peep area.Type: GrantFiled: December 20, 2019Date of Patent: December 20, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.Inventors: Heling Zhu, Jian Sang, Lu Yu, Pengfei Cheng, Gongtao Zhang, Haiwei Sun, Dongjia Hao
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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: 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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Patent number: 11281039Abstract: A liquid crystal display apparatus is disclosed. The liquid crystal display apparatus includes: a liquid crystal display panel; an infrared transmitting reflector plate configured to transmit an infrared light and reflect a visible light; an infrared source configured to emit an infrared light which is to be transmitted through the infrared transmitting reflector plate and the liquid crystal display panel to a fingerprint to be identified on a light exit side of the liquid crystal display panel; and a fingerprint identification module disposed on the side of the infrared transmitting reflector plate facing away from the liquid crystal display panel, and configured to receive a part of the infrared light emitted by the infrared source. The part of the infrared light being reflected by the fingerprint to reach the fingerprint identification module through the liquid crystal display panel and the infrared transmitting reflector plate for performing a fingerprint identification.Type: GrantFiled: June 9, 2020Date of Patent: March 22, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jinzhao Zhou, Litao Fan, Meiling Jin, Qin Xin, Zhiqiang Zhang, Jingfu Tao, Pengfei Cheng, Jian Zhang, Yujie Liu, Shubai Zhang, Haiwei Sun, Ming Zhai, Yutao Hao, Site Cai, Tingting Zhao
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Publication number: 20210404629Abstract: An optical film, a backlight module having an optical film and a display device are provided according to the present disclosure. The optical film includes: a polarizing film configured to convert incident light into polarized light and transmit the polarized light; and a diffusion film arranged on the polarizing film and including scattering particles capable of forming Rayleigh scattering. The backlight module includes the optical film and a light source, where the light source is arranged at a side of the polarizing film far away from the diffusion film.Type: ApplicationFiled: November 26, 2018Publication date: December 30, 2021Inventors: Pengfei Cheng, Haiwei Sun, Jian Sang, Zhiyong Chen, Junjie Ma, Lu Yu
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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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Patent number: 11112554Abstract: The present disclosure relates to the field of display technology, and provides a back light unit, a fabricating method thereof, and a display device in embodiments. The back light unit includes a composite layer. The composite layer includes a light guide layer and a first substrate opposite to each other, and a plurality of first microprisms and a plurality of second microprisms between the light guide layer and the first substrate. Specifically, the light guide layer includes a light exit surface facing the first substrate, and the plurality of first microprisms are on the light exit surface of the light guide layer. The plurality of second microprisms are on a surface of the first substrate facing the light guide layer. Moreover, the first microprisms are fixedly connected to the second microprisms.Type: GrantFiled: August 13, 2019Date of Patent: September 7, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shubai Zhang, Haiwei Sun, Ming Zhai, Yutao Hao, Pengfei Cheng
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Publication number: 20210223609Abstract: The present disclosure provides an anti-peep film and a manufacturing method thereof, and a display module. The anti-peep film includes a plurality of transmission areas and a plurality of anti-peep areas, and the plurality of transmission areas and the plurality of anti-peep areas are alternately arranged in a direction perpendicular to a thickness direction of the anti-peep film. At least one anti-peep area of the plurality of anti-peep areas has a set structure, and the set structure enables that light incident on the at least one anti-peep area from a first side in the thickness direction of the anti-peep film is reflected back to the first side through the at least one anti-peep area.Type: ApplicationFiled: December 20, 2019Publication date: July 22, 2021Inventors: Heling ZHU, Jian SANG, Lu YU, Pengfei CHENG, Gongtao ZHANG, Haiwei SUN, Dongjia HAO
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Publication number: 20210191176Abstract: A liquid crystal display apparatus is disclosed. The liquid crystal display apparatus includes: a liquid crystal display panel; an infrared transmitting reflector plate configured to transmit an infrared light and reflect a visible light; an infrared source configured to emit an infrared light which is to be transmitted through the infrared transmitting reflector plate and the liquid crystal display panel to a fingerprint to be identified on a light exit side of the liquid crystal display panel; and a fingerprint identification module disposed on the side of the infrared transmitting reflector plate facing away from the liquid crystal display panel, and configured to receive a part of the infrared light emitted by the infrared source. The part of the infrared light being reflected by the fingerprint to reach the fingerprint identification module through the liquid crystal display panel and the infrared transmitting reflector plate for performing a fingerprint identification.Type: ApplicationFiled: June 9, 2020Publication date: June 24, 2021Inventors: Jinzhao Zhou, Litao Fan, Meiling Jin, Qin Xin, Zhiqiang Zhang, Jingfu Tao, Pengfei Cheng, Jian Zhang, Yujie Liu, Shubai Zhang, Haiwei Sun, Ming Zhai, Yutao Hao, Site Cai, Tingting Zhao
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Publication number: 20210149105Abstract: The present disclosure relates to the field of display technology, and provides a back light unit, a fabricating method thereof, and a display device in embodiments. The back light unit includes a composite layer. The composite layer includes a light guide layer and a first substrate opposite to each other, and a plurality of first microprisms and a plurality of second microprisms between the light guide layer and the first substrate. Specifically, the light guide layer includes a light exit surface facing the first substrate, and the plurality of first microprisms are on the light exit surface of the light guide layer. The plurality of second microprisms are on a surface of the first substrate facing the light guide layer. Moreover, the first microprisms are fixedly connected to the second microprisms.Type: ApplicationFiled: August 13, 2019Publication date: May 20, 2021Inventors: Shubai ZHANG, Haiwei SUN, Ming ZHAI, Yutao HAO, Pengfei CHENG
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Patent number: 10928562Abstract: An optical film element, a backlight and a display device are disclosed. The optical film element includes a transparent base and a first diffusion film located at a first surface of the transparent base; the optical film element further includes an optical functional layer located at a second surface of the transparent base opposite to the first surface; the optical functional layer includes transmission regions and reflection regions; reflection members are provided in the reflection regions.Type: GrantFiled: January 7, 2019Date of Patent: February 23, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Shubai Zhang, Pengfei Cheng, Haiwei Sun, Junjie Ma, Yutao Hao, Yuanda Lu, Zhen Wang
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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