Patents by Inventor Qianqian Bu
Qianqian Bu 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: 11575111Abstract: A display assembly includes a display panel and at least one optical film group each disposed on a display surface. Each optical film group includes a quarter-wave plate, a reflective polarizer and an absorbing polarizer. The reflective polarizer includes a reflective portion capable of allowing light with a polarization direction parallel to a polarization axis of the reflective polarizer to pass through and reflecting light with a polarization direction perpendicular to the polarization axis. An orthographic projection of an effective light-emitting area of at least one sub-pixel is substantially within an orthographic projection of the reflective portion. The absorbing polarizer is capable of allowing light with a polarization direction parallel to a polarization axis of the absorbing polarizer to pass through and absorbing light with a polarization direction perpendicular to the polarization axis.Type: GrantFiled: May 29, 2020Date of Patent: February 7, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weipin Hu, Hong Yang, Chun Wang, Congcong Wei, Mingxiao Jiang, Qianqian Bu, Xiao Sun, Yun Qiu, Dan Wang
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Patent number: 11482583Abstract: A display apparatus having a plurality of subpixels is provided. The display apparatus includes an array substrate and a counter substrate facing the array substrate. The counter substrate includes a base substrate; an optical compensation device on the base substrate configured to adjust light emitting brightness values of the plurality of subpixels to target brightness values respectively; and a plurality of light shielding walls on the base substrate. The optical compensation device include a plurality of photosensors configured to respectively detect light emitting brightness values of the plurality of subpixels. A respective one of the plurality of light shielding walls is configured to at least partially shield a lateral side of a respective one of the plurality of photosensors from light emitted from adjacent subpixels.Type: GrantFiled: June 18, 2019Date of Patent: October 25, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.Inventors: Weipin Hu, Lianjie Qu, Qianqian Bu, Xiao Sun
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Patent number: 11469341Abstract: The present disclosure relates to an optical detection panel. The optical detection panel may include a first substrate and a second substrate opposite the first substrate, a photosensitive component and a driving thin film transistor at a side of the second substrate facing the first substrate, a first electrode and a second electrode at a side of the second substrate facing the first substrate, and a plurality of microlenses at a side of the photosensitive component opposite from the second substrate. The second electrode may be connected to the driving thin film transistor.Type: GrantFiled: October 8, 2019Date of Patent: October 11, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Qianqian Bu, Weipin Hu, Dan Wang, Yun Qiu, Xiao Sun, Congcong Wei
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Patent number: 11404500Abstract: A display apparatus and a display control method are provided. The display apparatus includes an organic light-emitting display device having electrostatic attraction and including a transparent cathode layer and a transparent anode layer, so that the organic light-emitting display device can achieve bidirectional light emission; frustrated total reflection devices positioned on both sides of the organic light-emitting display device respectively and each including an active film layer and a frustrated switch, wherein the frustrated switch is turned on or off according to a received control signal to control whether the active film layer has electrostatic attraction; and a sealant bonded between the organic light-emitting display device and the frustrated total reflection devices to form a gap therebetween. When the active film layer has electrostatic attraction, the light emitted by the organic light-emitting display device is emitted from the active film layer.Type: GrantFiled: July 14, 2020Date of Patent: August 2, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Qianqian Bu, Hong Yang, Weipin Hu, Pingqi Zhang
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Patent number: 11329113Abstract: The disclosure relates to an array substrate, a display panel, a display device, and a method for manufacturing the array substrate. The array substrate includes a first substrate, a light emitting device on the first substrate, the light emitting device including a first electrode, a light emitting layer, and a second electrode sequentially disposed in a direction away from the first substrate, wherein the first electrode is transparent, and wherein the second electrode is reflective, an opaque portion between the first substrate and the light emitting device, wherein a projection of the light emitting device on the first substrate partially overlap with a projection of the opaque portion on the first substrate, and a reflective member between the opaque portion and the light emitting layer.Type: GrantFiled: November 12, 2018Date of Patent: May 10, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mingxiao Jiang, Dan Wang, Yun Qiu, Xiao Sun, Weipin Hu, Qianqian Bu
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Patent number: 11296155Abstract: A display panel and an operation method thereof are disclosed. In the display panel, a second light-emitting device is configured to emit a second light ray to the non-display side, and a second photosensitive element is configured to allow the second light ray to be incident therein and detect the second light ray. A first light-emitting device and the second light-emitting device are configured to emit a first light ray to the display side, and a first photosensitive element is configured to allow the first light ray reflected by an external object to be incident therein and detect the reflected first light ray. The second light ray is of a type different from that of the first light ray.Type: GrantFiled: January 4, 2019Date of Patent: April 5, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weipin Hu, Qianqian Bu, Mingxiao Jiang, Zhaokun Yang, Yalong Su, Pingqi Zhang, Chenyang Zhang, Longfei Ma, Hui Zhang
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Patent number: 11244990Abstract: Provided are a display control circuit and a driving method thereof, and a display panel and manufacturing and controlling methods thereof, in the field of display technology. The display control circuit includes: a driving sub-circuit configured to provide a control signal from the control signal terminal to the control node; a first switching sub-circuit configured to provide a data signal from the data signal terminal to the OLED; and a second switching sub-circuit configured to provide the data signal to the liquid crystal display unit. The first switching sub-circuit and the second switching sub-circuit operate at different periods of time.Type: GrantFiled: July 26, 2019Date of Patent: February 8, 2022Inventors: Qianqian Bu, Weipin Hu
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Publication number: 20220028941Abstract: A display apparatus and a display control method are provided. The display apparatus includes an organic light-emitting display device having electrostatic attraction and including a transparent cathode layer and a transparent anode layer, so that the organic light-emitting display device can achieve bidirectional light emission; frustrated total reflection devices positioned on both sides of the organic light-emitting display device respectively and each including an active film layer and a frustrated switch, wherein the frustrated switch is turned on or off according to a received control signal to control whether the active film layer has electrostatic attraction; and a sealant bonded between the organic light-emitting display device and the frustrated total reflection devices to form a gap therebetween. When the active film layer has electrostatic attraction, the light emitted by the organic light-emitting display device is emitted from the active film layer.Type: ApplicationFiled: July 14, 2020Publication date: January 27, 2022Inventors: Qianqian BU, Hong YANG, Weipin HU, Pingqi ZHANG
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Patent number: 11217614Abstract: A photodetector and a manufacture method thereof, a touch substrate and a display panel are provided. The photodetector includes: a substrate; a polysilicon layer on the substrate including a first doped region and a second doped region; a transparent conductive film covering the first doped region of the polysilicon layer; and a metal electrode on the second doped region of the polysilicon layer. The conductive film, the metal electrode and the polysilicon layer constitute a photosensitive device.Type: GrantFiled: May 11, 2018Date of Patent: January 4, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qianqian Bu, Qingrong Ren, Jianming Sun
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Patent number: 11195868Abstract: This disclosure provides an image distance sensor and a manufacture method thereof, as well as a ranging device. The image distance sensor includes a semiconductor substrate, and an image sensing unit and a distance sensing unit formed on the semiconductor substrate. The image sensing unit and the distance sensing unit are formed in a same manufacture process.Type: GrantFiled: June 14, 2019Date of Patent: December 7, 2021Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qianqian Bu, Xin Li
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Publication number: 20210359062Abstract: A display apparatus having a plurality of subpixels is provided. The display apparatus includes an array substrate and a counter substrate facing the array substrate. The counter substrate includes a base substrate; an optical compensation device on the base substrate configured to adjust light emitting brightness values of the plurality of subpixels to target brightness values respectively; and a plurality of light shielding walls on the base substrate. The optical compensation device include a plurality of photosensors configured to respectively detect light emitting brightness values of the plurality of subpixels. A respective one of the plurality of light shielding walls is configured to at least partially shield a lateral side of a respective one of the plurality of photosensors from light emitted from adjacent subpixels.Type: ApplicationFiled: June 18, 2019Publication date: November 18, 2021Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Weipin Hu, Lianjie Qu, Qianqian Bu, Xiao Sun
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Publication number: 20210288085Abstract: A photodetector and a manufacture method thereof, a touch substrate and a display panel are provided. The photodetector includes: a substrate; a polysilicon layer on the substrate including a first doped region and a second doped region; a transparent conductive film covering the first doped region of the polysilicon layer; and a metal electrode on the second doped region of the polysilicon layer. The conductive film, the metal electrode and the polysilicon layer constitute a photosensitive device.Type: ApplicationFiled: May 11, 2018Publication date: September 16, 2021Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qianqian BU, Qingrong REN, Jianming SUN
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Patent number: 11106889Abstract: The present application provides a biometric sensor. The biometric sensor includes a first base substrate; a second base substrate facing the first base substrate; a plurality of photosensors on the first base substrate and configured to detect at least a portion of a light totally reflected by a surface of the second base substrate facing away the first base substrate, thereby detecting a biometric information; a low refractive index layer on a side of the plurality of photosensors distal to the first base substrate; and a high refractive index layer on a side of the low refractive index layer distal to the first base substrate and directly adjacent to the low refractive index layer. The high refractive index layer includes a material having a refractive index higher than a refractive index of a material of the low refractive index layer.Type: GrantFiled: May 17, 2018Date of Patent: August 31, 2021Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Qianqian Bu, Weibin Hu
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Publication number: 20210234059Abstract: The present disclosure relates to an optical detection panel. The optical detection panel may include a first substrate and a second substrate opposite the first substrate, a photosensitive component and a driving thin film transistor at a side of the second substrate facing the first substrate, a first electrode and a second electrode at a side of the second substrate facing the first substrate, and a plurality of microlenses at a side of the photosensitive component opposite from the second substrate. The second electrode may be connected to the driving thin film transistor.Type: ApplicationFiled: October 8, 2019Publication date: July 29, 2021Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qianqian Bu, Weipin Hu, Dan Wang, Yun Qiu, Xiao Sun, Congcong Wei
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Publication number: 20210151527Abstract: The disclosure relates to an array substrate, a display panel, a display device, and a method for manufacturing the array substrate. The array substrate includes a first substrate, a light emitting device on the first substrate, the light emitting device including a first electrode, a light emitting layer, and a second electrode sequentially disposed in a direction away from the first substrate, wherein the first electrode is transparent, and wherein the second electrode is reflective, an opaque portion between the first substrate and the light emitting device, wherein a projection of the light emitting device on the first substrate partially overlap with a projection of the opaque portion on the first substrate, and a reflective member between the opaque portion and the light emitting layer.Type: ApplicationFiled: November 12, 2018Publication date: May 20, 2021Inventors: Mingxiao JIANG, Dan WANG, Yun QIU, Xiao SUN, Weipin HU, Qianqian BU
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Publication number: 20210117638Abstract: The present application provides a biometric sensor. The biometric sensor includes a first base substrate; a second base substrate facing the first base substrate; a plurality of photosensors on the first base substrate and configured to detect at least a portion of a light totally reflected by a surface of the second base substrate facing away the first base substrate, thereby detecting a biometric information; a low refractive index layer on a side of the plurality of photosensors distal to the first base substrate; and a high refractive index layer on a side of the low refractive index layer distal to the first base substrate and directly adjacent to the low refractive index layer. The high refractive index layer includes a material having a refractive index higher than a refractive index of a material of the low refractive index layer.Type: ApplicationFiled: May 17, 2018Publication date: April 22, 2021Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.Inventors: Qianqian Bu, Weibin Hu
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Publication number: 20210083018Abstract: A display panel and an operation method thereof are disclosed. In the display panel, a first pixel region including a first light-emitting device and a first photosensitive element; a second pixel region including a second light-emitting device and a second photosensitive element. The second light-emitting device is configured to emit a second light ray to the non-display side, and the second photosensitive element is configured to allow the second light ray to be incident therein and detect the second light ray. The first light-emitting device and the second light-emitting device are configured to emit a first light ray to the display side, and the first photosensitive element is configured to allow the first light ray reflected by an external object to be incident therein and detect the reflected first light ray. The second light ray is of a type different from that of the first light ray.Type: ApplicationFiled: January 4, 2019Publication date: March 18, 2021Inventors: Weipin HU, Qianqian BU, Mingxiao JIANG, Zhaokun YANG, Yalong SU, Pingqi ZHANG, Chenyang ZHANG, Longfei MA, Hui ZHANG
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Patent number: 10923080Abstract: A detection substrate, a display panel and a display apparatus are provided in the disclosure. The detection substrate includes a first substrate and at least one device pair for fingerprint identification-brightness detection on the first substrate. Each of the at least one device pair for fingerprint identification-brightness detection includes a fingerprint identification device, an insulating layer and a brightness detection device which are sequentially stacked on the first base.Type: GrantFiled: November 29, 2019Date of Patent: February 16, 2021Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weipin Hu, Qianqian Bu, Zhonglan Zhao, Hui Zhang
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Publication number: 20210036264Abstract: A display assembly includes a display panel and at least one optical film group each disposed on a display surface. Each optical film group includes a quarter-wave plate, a reflective polarizer and an absorbing polarizer. The reflective polarizer includes a reflective portion capable of allowing light with a polarization direction parallel to a polarization axis of the reflective polarizer to pass through and reflecting light with a polarization direction perpendicular to the polarization axis. An orthographic projection of an effective light-emitting area of at least one sub-pixel is substantially within an orthographic projection of the reflective portion. The absorbing polarizer is capable of allowing light with a polarization direction parallel to a polarization axis of the absorbing polarizer to pass through and absorbing light with a polarization direction perpendicular to the polarization axis.Type: ApplicationFiled: May 29, 2020Publication date: February 4, 2021Inventors: Weipin HU, Hong YANG, Chun WANG, Congcong WEI, Mingxiao JIANG, Qianqian BU, Xiao SUN, Yun QIU, Dan WANG
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Patent number: 10811481Abstract: The present disclosure provides an OLED panel comprising: a first substrate; an OLED device on the first substrate; an optical detecting device configured to detect a luminance of the OLED device; and a processor configured to generate a control signal according to brightness information of the OLED device detected by the optical detecting device so as to adjust brightness of the OLED device.Type: GrantFiled: December 28, 2018Date of Patent: October 20, 2020Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weipin Hu, Qianqian Bu, Yun Qiu, Congcong Wei, Sha Liu, Xiao Sun, Chun Wang, Mingxiao Jiang, Hebin Zhao, Lianjie Qu, Ruizhi Yang