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).

  • Patent number: 10884180
    Abstract: A light guide assembly comprises: a first light guide member; and a second light guide member stacked on the first light guide member. The light guide assembly has first and second light incident surfaces located on different sides, and a light emitting surface and a bottom surface which are oppositely disposed in a thickness direction, the first light incident surface and the bottom surface are located on the first light guide member, and the second light incident surface and the light emitting surface are located on the second light guide member, and the bottom surface is provided with first dots having a density increasing in a direction away from the first light incident surface, and the light emitting surface is provided with second dots having a density increasing in a direction away from the second light incident surface.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: January 5, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heling Zhu, Junjie Ma, Yuanda Lu, Bo Han, Liang Gao, Lu Yu, Pengfei Cheng
  • Patent number: 10793549
    Abstract: The present invention relates to a sulfuryl-substituted benzoheterocyclic derivative, a preparation method and medical use thereof. Particularly, disclosed is a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof, and a preparation method and application thereof. The definition of each group in the formula can be found in the specification and the claims.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 6, 2020
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Yunzhou Jin, Xiang Chen, Pengfei Cheng, Ping Bu, Leitao Zhang, Chong Wen, Yingtao Liu, Fusheng Zhou, Ming Weng, Jiong Lan
  • Publication number: 20200280662
    Abstract: 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: Application
    Filed: March 22, 2019
    Publication date: September 3, 2020
    Applicants: 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
  • Publication number: 20200262813
    Abstract: The present disclosure relates to 1,5,7-trisubstituted isoquinoline derivatives, their preparation and pharmaceutical use. In particular, the present disclosure discloses a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof, and a preparation method and use thereof. The definitions of the groups in the formula can be found in the specification and claims.
    Type: Application
    Filed: November 10, 2017
    Publication date: August 20, 2020
    Inventors: Fusheng ZHOU, Xiaoyong SHI, Lixiao WANG, Feng XU, Jing XIE, Ping BU, Pengfei CHENG, Zhiyuan ZHANG, Nanping CAI, Jiong LAN
  • Patent number: 10663796
    Abstract: A backlight module, a controlling method thereof, and a display device are disclosed. The backlight module includes a light guide plate and at least one digital micro-mirror device located on a side of the light guide plate away from a light exiting surface. The at least one digital micro-mirror device includes a plurality of micro-mirrors, and a reflective surface of each of the plurality of micro-mirrors faces the light guide plate. A local brightness of the backlight module is adjusted by controlling the micro-mirrors in the digital micro-mirror device.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: May 26, 2020
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengfei Cheng, Lei Chen, Xuqing Feng, Fei Gao, Xin Ma, Xuerong Wang, Lu Yu, Chuan Sun
  • Publication number: 20190346594
    Abstract: 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: Application
    Filed: January 7, 2019
    Publication date: November 14, 2019
    Inventors: Shubai ZHANG, Pengfei CHENG, Haiwei SUN, Junjie MA, Yutao HAO, Yuanda LU, Zhen WANG
  • Publication number: 20190300506
    Abstract: The present invention relates to a sulfonyl-substituted benzoheterocyclic derivative, a preparation method and medical use thereof. Particularly, disclosed is a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof, and a preparation method and application thereof. The definition of each group in the formula can be found in the specification and the claims.
    Type: Application
    Filed: November 10, 2017
    Publication date: October 3, 2019
    Inventors: Yunzhou JIN, Xiang CHEN, Pengfei CHENG, Ping BU, Leitao ZHANG, Chong WEN, Yingtao LIU, Fusheng ZHOU, Ming WENG, Jiong LAN
  • Publication number: 20190227222
    Abstract: A light guide assembly comprises: a first light guide member; and a second light guide member stacked on the first light guide member. The light guide assembly has first and second light incident surfaces located on different sides, and a light emitting surface and a bottom surface which are oppositely disposed in a thickness direction, the first light incident surface and the bottom surface are located on the first light guide member, and the second light incident surface and the light emitting surface are located on the second light guide member, and the bottom surface is provided with first dots having a density increasing in a direction away from the first light incident surface, and the light emitting surface is provided with second dots having a density increasing in a direction away from the second light incident surface.
    Type: Application
    Filed: August 16, 2018
    Publication date: July 25, 2019
    Inventors: Heling ZHU, Junjie MA, Yuanda LU, Bo HAN, Liang GAO, Lu YU, Pengfei CHENG
  • Publication number: 20190146276
    Abstract: A backlight module, a controlling method thereof, and a display device are disclosed. The backlight module includes a light guide plate and at least one digital micro-mirror device located on a side of the light guide plate away from a light exiting surface. The at least one digital micro-mirror device includes a plurality of micro-mirrors, and a reflective surface of each of the plurality of micro-mirrors faces the light guide plate. A local brightness of the backlight module is adjusted by controlling the micro-mirrors in the digital micro-mirror device.
    Type: Application
    Filed: February 12, 2018
    Publication date: May 16, 2019
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengfei CHENG, Lei CHEN, Xuqing FENG, Fei GAO, Xin MA, Xuerong WANG, Lu YU, Chuan SUN