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).

  • Publication number: 20210359062
    Abstract: 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: Application
    Filed: June 18, 2019
    Publication date: November 18, 2021
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Weipin Hu, Lianjie Qu, Qianqian Bu, Xiao Sun
  • Publication number: 20210288085
    Abstract: 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: Application
    Filed: May 11, 2018
    Publication date: September 16, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qianqian BU, Qingrong REN, Jianming SUN
  • Patent number: 11106889
    Abstract: 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: Grant
    Filed: May 17, 2018
    Date of Patent: August 31, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Qianqian Bu, Weibin Hu
  • Publication number: 20210234059
    Abstract: 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: Application
    Filed: October 8, 2019
    Publication date: July 29, 2021
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qianqian Bu, Weipin Hu, Dan Wang, Yun Qiu, Xiao Sun, Congcong Wei
  • Publication number: 20210151527
    Abstract: 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: Application
    Filed: November 12, 2018
    Publication date: May 20, 2021
    Inventors: Mingxiao JIANG, Dan WANG, Yun QIU, Xiao SUN, Weipin HU, Qianqian BU
  • Publication number: 20210117638
    Abstract: 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: Application
    Filed: May 17, 2018
    Publication date: April 22, 2021
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Qianqian Bu, Weibin Hu
  • Publication number: 20210083018
    Abstract: 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: Application
    Filed: January 4, 2019
    Publication date: March 18, 2021
    Inventors: Weipin HU, Qianqian BU, Mingxiao JIANG, Zhaokun YANG, Yalong SU, Pingqi ZHANG, Chenyang ZHANG, Longfei MA, Hui ZHANG
  • Patent number: 10923080
    Abstract: 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: Grant
    Filed: November 29, 2019
    Date of Patent: February 16, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weipin Hu, Qianqian Bu, Zhonglan Zhao, Hui Zhang
  • Publication number: 20210036264
    Abstract: 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: Application
    Filed: May 29, 2020
    Publication date: February 4, 2021
    Inventors: Weipin HU, Hong YANG, Chun WANG, Congcong WEI, Mingxiao JIANG, Qianqian BU, Xiao SUN, Yun QIU, Dan WANG
  • Patent number: 10811481
    Abstract: 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: Grant
    Filed: December 28, 2018
    Date of Patent: October 20, 2020
    Assignees: 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
  • Publication number: 20200312273
    Abstract: 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: Application
    Filed: November 29, 2019
    Publication date: October 1, 2020
    Inventors: Weipin HU, Qianqian BU, Zhonglan ZHAO, Hui ZHANG
  • Patent number: 10685206
    Abstract: A display apparatus includes a display panel including a first sub-pixel and a second sub-pixel adjacent to the first sub-pixel; a first fingerprint identification device including a first photosensitive element, an orthographic projection of the first photosensitive element on the display panel being located within the first sub-pixel; and a fingerprint identification anti-interference structure on a light exiting side of the display panel. The fingerprint identification anti-interference structure is configured to shield the first photosensitive element from light emitted from the second sub-pixel and reflected by a fingerprint.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 16, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weipin Hu, Qianqian Bu, Yun Qiu, Xiao Sun, Congcong Wei, Mingxiao Jiang, Chun Wang, Hui Zhang, Yang You, Sha Liu, Ruizhi Yang, Lianjie Qu
  • Publication number: 20200160023
    Abstract: A display apparatus includes a display panel including a first sub-pixel and a second sub-pixel adjacent to the first sub-pixel; a first fingerprint identification device including a first photosensitive element, an orthographic projection of the first photosensitive element on the display panel being located within the first sub-pixel; and a fingerprint identification anti-interference structure on a light exiting side of the display panel. The fingerprint identification anti-interference structure is configured to shield the first photosensitive element from light emitted from the second sub-pixel and reflected by a fingerprint.
    Type: Application
    Filed: August 30, 2018
    Publication date: May 21, 2020
    Inventors: Weipin HU, Qianqian BU, Yun QIU, Xiao SUN, Congcong WEI, Mingxiao JIANG, Chun WANG, Hui ZHANG, Yang YOU, Sha LIU, Ruizhi YANG, Lianjie QU
  • Patent number: 10586834
    Abstract: A display panel, a method for driving the same and a display device are provided. Each pixel element includes an infrared detector, a light-emitting element and a first control unit, the infrared detector includes a first electrode, an infrared-sensitive layer and a second electrode, and the light-emitting element includes a pixel circuit, a third electrode, a light-emitting function layer and a fourth electrode. The second electrode is electrically connected with the third electrode, the first electrode is connected with the fourth electrode through the first control unit, and the first control unit is configured to connect the first electrode with the fourth electrode in an infrared detection mode, and to disconnect the first electrode from the fourth electrode in a display mode.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: March 10, 2020
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qianqian Bu, Weipin Hu
  • Publication number: 20200043963
    Abstract: 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: Application
    Filed: July 26, 2019
    Publication date: February 6, 2020
    Inventors: Qianqian Bu, Weipin Hu
  • Publication number: 20200020732
    Abstract: 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: Application
    Filed: June 14, 2019
    Publication date: January 16, 2020
    Inventors: Qianqian BU, Xin LI
  • Publication number: 20190214441
    Abstract: A display panel, a method for driving the same and a display device are provided. Each pixel element includes an infrared detector, a light-emitting element and a first control unit, the infrared detector includes a first electrode, an infrared-sensitive layer and a second electrode, and the light-emitting element includes a pixel circuit, a third electrode, a light-emitting function layer and a fourth electrode. The second electrode is electrically connected with the third electrode, the first electrode is connected with the fourth electrode through the first control unit, and the first control unit is configured to connect the first electrode with the fourth electrode in an infrared detection mode, and to disconnect the first electrode from the fourth electrode in a display mode.
    Type: Application
    Filed: October 30, 2018
    Publication date: July 11, 2019
    Inventors: Qianqian BU, Weipin HU
  • Publication number: 20190214448
    Abstract: 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: Application
    Filed: December 28, 2018
    Publication date: July 11, 2019
    Inventors: Weipin HU, Qianqian BU, Yun QIU, Congcong WEI, Sha LIU, Xiao SUN, Chun WANG, Mingxiao JIANG, Hebin ZHAO, Lianjie QU, Ruizhi YANG
  • Patent number: 10283355
    Abstract: The present disclosure provides a method for manufacturing a poly-silicon layer. The method for manufacturing the poly-silicon layer comprises steps of: depositing a porous metal film on a microcrystalline silicon layer of a base substrate; immersing the base substrate deposited with the porous metal film into an etching liquid comprising hydrogen fluoride and oxidants for etching the microcrystalline silicon layer; after the microcrystalline silicon layer has been etched successfully, removing the metal film with an acid solution and washing the microcrystalline silicon layer with a deionized water subsequently so as to obtain a processed microcrystalline silicon layer; and depositing an amorphous silicon layer on the processed microcrystalline silicon layer and subjecting the amorphous silicon layer to laser annealing treatment so as to obtain the poly-silicon layer.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: May 7, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Qianqian Bu
  • Publication number: 20180122634
    Abstract: The present disclosure provides a method for manufacturing a poly-silicon layer. The method for manufacturing the poly-silicon layer comprises steps of: depositing a porous metal film on a microcrystalline silicon layer of a base substrate; immersing the base substrate deposited with the porous metal film into an etching liquid comprising hydrogen fluoride and oxidants for etching the microcrystalline silicon layer; after the microcrystalline silicon layer has been etched successfully, removing the metal film with an acid solution and washing the microcrystalline silicon layer with a deionized water subsequently so as to obtain a processed microcrystalline silicon layer; and depositing an amorphous silicon layer on the processed microcrystalline silicon layer and subjecting the amorphous silicon layer to laser annealing treatment so as to obtain the poly-silicon layer.
    Type: Application
    Filed: September 26, 2017
    Publication date: May 3, 2018
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Qianqian BU