Patents by Inventor Dandan Li

Dandan Li 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: 20210043867
    Abstract: The present disclosure provides a cover plate for encapsulating a display substrate, a display panel including the cover plate, a display device including the display panel and a method for encapsulating the display panel. The cover plate includes: a base substrate including a display area and an encapsulation area arranged at a periphery of the display area; and an encapsulation layer, a first barrier layer, a water absorption layer and a second barrier layer successively arranged in the encapsulation area of the base substrate in a direction from the display area to the encapsulation area.
    Type: Application
    Filed: July 24, 2020
    Publication date: February 11, 2021
    Inventors: Xinwei GAO, Dandan ZANG, Peng LI, Qihe CHEN
  • Publication number: 20210017154
    Abstract: A N-heterocyclic five-membered ring-containing capsid protein assembly inhibitor, and a pharmaceutical composition and use thereof, specifically relating to a compound as represented by formula I, a stereoisomer, a tautomer, a geometrical isomer, a solvate, an active metabolite, a hydrate, a prodrug or a pharmaceutically acceptable salt thereof, a pharmaceutical composition thereof, and a medical use thereof. The medical use comprises the use in treating diseases benefiting from the capsid protein assembly inhibitor, and in particular, diseases caused by hepatitis B virus infection.
    Type: Application
    Filed: March 29, 2019
    Publication date: January 21, 2021
    Applicant: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Yinsheng ZHANG, Wangwei AO, Yuan LI, Hui WANG, Hangzhou SHEN, Jie NI, Huan ZHANG, Jie WU, Li ZHANG, Kai CAO, Peng LU, Xushi LIU, Jie WANG, Tianxiao ZHAO, Xingfeng GE, Dandan LU, Shuo CHEN, Xueqin MA, Wei SHI, Xiaojin WANG, Hongjiang XU
  • Publication number: 20210015824
    Abstract: Disclosed is use of a thieno[3,2-d]pyrimidin-4-one compound represented by general formula (I). Definition of each substituent is as stated in the description and claims, and the compound is used for preparing medicines for treating and/or preventing liver fibrosis and related diseases or preparing a DPP-4 inhibitor, or is used as a DPP-4 inhibitor.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 21, 2021
    Inventors: Hong LIU, Jia LI, Jiang WANG, Yi ZANG, Jian LI, Jingya LI, Dandan SUN, Hualiang JIANG, Kaixian CHEN
  • Patent number: 10884531
    Abstract: A digitizer, a signal transmission device, a digitizer device and control methods thereof are provided. The digitizer includes an operating panel and a first processor. The operating panel is provided with multiple photoelectric sensors. The multiple photoelectric sensors receive an external optical signal, convert the optical signal into an electric signal, and transmit the electric signal to the first processor. The first processor is configured to determine, in accordance with the electric signal, a location where the optical signal is received.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 5, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huaiwei Yang, Dandan Li, Chaozhi Yu
  • Patent number: 10886360
    Abstract: A display panel and a manufacturing method thereof. The display panel includes a base substrate, and a pixel area and a non-pixel area on the substrate. The pixel area includes a light emitting element, the light emitting element including a first electrode, a light emitting layer, and a second electrode which are sequentially on the base substrate; the non-pixel area includes a first structural area, the first structural area including a conductive supporting block on one side of the light emitting layer close to the base substrate; the display panel further includes an electric connection layer which is on one side, which is away from the base substrate, of the light emitting element and the first structural area; the second electrode of the light emitting element is electrically connected with the electric connection layer, and is electrically connected with the conductive supporting block through the electric connection layer.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 5, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiewei Li, Dandan Zang, Yachao Tong, Chuan Yin, Xianjiang Xiong, Yong Cui
  • Publication number: 20200403757
    Abstract: A station (STA)-side data acknowledgment apparatus includes a transceiver configured to send a data frame and send an acknowledgment request, and a processor configured to control the transceiver to send the acknowledgment request after a duration from an end of sending the data frame. The duration is greater than or equal to a transmission delay on a backhaul link between access points (APs). The acknowledgment request is an acknowledgment request for the data frame.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Guogang HUANG, Yunbo LI, Yuchen GUO, Dandan LIANG, Jian YU
  • Publication number: 20200388791
    Abstract: The disclosure relates to an organic electroluminescent device containing a capping layer. The organic electroluminescent device has: a substrate layer; a first electrode, the first electrode being located on the substrate; an organic light-emitting functional layer, the organic light-emitting functional layer being located on the first electrode; a second electrode, the second electrode being located on the organic light-emitting functional layer; and the capping layer, the capping layer being located on the side of the organic electroluminescent device where light is emitted, wherein the capping layer comprises an organic compound. The organic compound of the capping layer has the following properties: having a molecular weight falling within the range from 500 to 1200 and containing lone pair electrons, the number of the lone pair electrons being greater than or equal to 2.
    Type: Application
    Filed: June 21, 2020
    Publication date: December 10, 2020
    Inventors: ZHAOCHAO ZHANG, CHONG LI, DANDAN TANG, LICHUN WANG
  • Publication number: 20200354347
    Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
    Type: Application
    Filed: September 25, 2018
    Publication date: November 12, 2020
    Applicant: VALIANT CO., LTD.
    Inventors: Haifeng CHEN, Chong LI, Zhaochao ZHANG, Xiaoqing ZHANG, Dandan TANG
  • Publication number: 20200339962
    Abstract: The present invention discloses a Proteus mirabilis phage RDP-SA-16033. The host of the Proteus mirabilis phage is Proteus mirabilis S5. The phage may form a plaque having a diameter of 4-6 mm on a double-layer plate. When observed through an electron microscope, the phage has a head in polyhedral cubic symmetry, is coated by nucleic acid, has a diameter of about 70 nm, has a tail of about 150 nm long, has a tail sheath, has a neck connected to the head and the tail, and belongs to tailed virales myovirus division. The present invention further provides a production process of the phage. After centrifugation of value-added liquid, a titer of the phage is increased by membrane concentration, and then residual host and other infectious microbes in value-added are effectively removed by a ceramic membrane and a 0.22 ?m polyethersulfone filter membrane. Meanwhile, the phage is reserved to the utmost extent.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventors: Xiansheng Li, Xinyong Du, Yuqing Liu, Qing Zhang, Chengsheng Luo, Ruxia Ma, Dandan Zhao
  • Publication number: 20200313113
    Abstract: A display panel includes a base substrate including a first surface; another base substrate including a second surface disposed face the first surface; a first insulating layer disposed above the first surface of the base substrate, a plurality of grooves being disposed in a surface of the first insulating layer away from the base substrate; a first conductive layer disposed at a side of the first insulating layer away from the base substrate, the first conductive layer at least covering bottom faces and side walls of the plurality of grooves; a plurality of support portions disposed above the second surface of the another base substrate; and a second conductive layer disposed at a side of the plurality of support portions away from the another base substrate, the second conductive layer at least covering surfaces of the plurality of support portions facing away from the another base substrate and side faces of the plurality of support portions.
    Type: Application
    Filed: June 6, 2019
    Publication date: October 1, 2020
    Inventors: Dandan ZANG, Xinwei GAO, Peng LI, Wentong HUANG
  • Patent number: 10783369
    Abstract: Disclosed in the application are document verification and identity verification methods and devices. A computer-implemented document verification method comprises: obtaining an image of a to-be-verified document; and verifying whether an anti-counterfeiting identifier exists in the image; verifying a source of the image; and obtaining a verification result for the to-be-verified document based on the verification of the anti-counterfeiting identifier and the verification of the source of the image. A computer-implemented identity verification method comprises: obtaining an image of an identity document of a to-be-verified user; obtaining a first verification result for the identity document based on the image of the identity document; verifying authenticity of identity information in the image of the identify document to obtain a second verification result; and determining an identity verification result for the to-be-verified user based on the first verification result and the second verification result.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: September 22, 2020
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Dandan Zheng, Wei Xu, Liang Li
  • Publication number: 20200203469
    Abstract: A display panel and a manufacturing method thereof. The display panel includes a base substrate, and a pixel area and a non-pixel area on the substrate. The pixel area includes a light emitting element, the light emitting element including a first electrode, a light emitting layer, and a second electrode which are sequentially on the base substrate; the non-pixel area includes a first structural area, the first structural area including a conductive supporting block on one side of the light emitting layer close to the base substrate; the display panel further includes an electric connection layer which is on one side, which is away from the base substrate, of the light emitting element and the first structural area; the second electrode of the light emitting element is electrically connected with the electric connection layer, and is electrically connected with the conductive supporting block through the electric connection layer.
    Type: Application
    Filed: September 10, 2019
    Publication date: June 25, 2020
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiewei Li, Dandan Zang, Yachao Tong, Chuan Yin, Xianjiang Xiong, Yong Cui
  • Patent number: 10691929
    Abstract: This specification describes techniques for verifying authenticity of an image. One example method includes identifying a baseline image depicting a baseline background; identifying a comparison image depicting a card; identifying a comparison background in the comparison image, wherein the comparison background is an area of the comparison image other than an area occupied by the card; determining a probability that the baseline background matches the comparison background; determining that the probability satisfies a verification threshold; and in response to determining that the probability satisfies a verification threshold, determining that the comparison image was acquired by capturing an image of a physical card corresponding to the card depicted in the comparison image.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 23, 2020
    Assignee: Alibaba Group Holding Limited
    Inventors: Dandan Zheng, Wei Xu, Liang Li
  • Publication number: 20200167598
    Abstract: A user identity determining method includes: acquiring target multidimensional feature information of a target user, wherein the target multidimensional feature information includes at least two types of feature information in at least one of biometric feature information or non-biometric feature information; comparing the target multidimensional feature information with multidimensional feature information of a plurality of designated users, respectively, to obtain a comparison result; and determining an identity of the target user based on the comparison result.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Dandan Zheng, Liang Li, Wei Xu
  • Publication number: 20200143162
    Abstract: Disclosed in the application are document verification and identity verification methods and devices. A computer-implemented document verification method comprises: obtaining an image of a to-be-verified document; and verifying whether an anti-counterfeiting identifier exists in the image; verifying a source of the image; and obtaining a verification result for the to-be-verified document based on the verification of the anti-counterfeiting identifier and the verification of the source of the image. A computer-implemented identity verification method comprises: obtaining an image of an identity document of a to-be-verified user; obtaining a first verification result for the identity document based on the image of the identity document; verifying authenticity of identity information in the image of the identify document to obtain a second verification result; and determining an identity verification result for the to-be-verified user based on the first verification result and the second verification result.
    Type: Application
    Filed: January 8, 2020
    Publication date: May 7, 2020
    Inventors: Dandan ZHENG, Wei XU, Liang LI
  • Patent number: 10638434
    Abstract: Embodiments of the present invention provide a method and user equipment for transmitting data. The method includes: determining indication information used for indicating to the user equipment (UE) to use a dual stream mode to transmit data; and determining, according to the indication information and a transmission mode determining condition, a transmission mode used for transmitting data, where the transmit mode is a single stream mode or the dual stream mode. By using the method and user equipment for transmitting data in the embodiments of the present invention, a transmission mode is flexibly selected based on a transmission mode determining condition, and data transmission can be implemented at higher efficiency by combining advantages of the dual stream mode and the single stream mode.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: April 28, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Bingzhao Li, Dandan Zhang, Kun Yan, Yongqiang Gao
  • Publication number: 20200075696
    Abstract: A display panel and a manufacturing method thereof are provided. The display panel includes a first substrate and a second substrate opposite to each other, the first substrate includes a first base, a pixel definition layer on the first base, and at least one OLED; each OLED includes a first electrode, a light emitting layer, and a second electrode sequentially provided on the first base; and the pixel definition layer defines pixel regions spaced apart, the at least one OLED is provided in the pixel regions, and the pixel definition layer between at least two adjacent pixel regions includes one opening; the second substrate includes a second base, and a connection electrode on a side of the second base proximal to the pixel definition layer, which is arranged inside the opening, and is electrically coupled to the second electrode of the OLEDs adjacent to the opening.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 5, 2020
    Inventors: Xinwei GAO, Peng LI, Dandan ZANG
  • Publication number: 20200074219
    Abstract: A user identity determining method includes: acquiring target multidimensional feature information of a target user, wherein the target multidimensional feature information includes at least two types of feature information in at least one of biometric feature information or non-biometric feature information; comparing the target multidimensional feature information with multidimensional feature information of a plurality of designated users, respectively, to obtain a comparison result; and determining an identity of the target user based on the comparison result.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 5, 2020
    Inventors: Dandan ZHENG, Liang Li, Wei Xu
  • Publication number: 20190278977
    Abstract: This specification describes techniques for verifying authenticity of an image. One example method includes identifying a baseline image depicting a baseline background; identifying a comparison image depicting a card; identifying a comparison background in the comparison image, wherein the comparison background is an area of the comparison image other than an area occupied by the card; determining a probability that the baseline background matches the comparison background; determining that the probability satisfies a verification threshold; and in response to determining that the probability satisfies a verification threshold, determining that the comparison image was acquired by capturing an image of a physical card corresponding to the card depicted in the comparison image.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Applicant: Alibaba Group Holding Limited
    Inventors: Dandan Zheng, Wei Xu, Liang LI
  • Patent number: 10411885
    Abstract: A method and system for group-oriented encryption and decryption that supports the implementation of the designation and revocation functions of decryption users in a large-scale group.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: September 10, 2019
    Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
    Inventors: Yan Zhu, Feng Pu, Ruyun Yu, Dandan Li