Patents by Inventor Xiaoyuan Zhang

Xiaoyuan Zhang 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: 11958999
    Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 16, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenhai Mei, Zhenqi Zhang, Aidi Zhang, Xiaoyuan Zhang, Haowei Wang
  • Publication number: 20240083852
    Abstract: The present application relates to a synthesis method for N-methyl-3-substituted methyl-4-pyrazolamide derivative and N-methyl-3-substituted methyl-4-pyrazolic acid, including the following steps: step S1: synthesis of intermediate E; step S2: synthesis of intermediate D; step S3: synthesis of intermediate C; step S4: synthesis of N-methyl-3-substituted methyl-4-pyrazolamide derivative; and synthesis of N-methyl-3- substituted methyl-4-pyrazolic acid by decomposition of N-methyl-3-substituted methyl-4-pyrazolamide derivative.
    Type: Application
    Filed: August 16, 2023
    Publication date: March 14, 2024
    Inventors: Shengxue LIU, Yintao SHI, Qiang GONG, Sufang ZHONG, Jianjiang ZHANG, Xiaoyuan QIAN, Fang GUO, Rujun CHEN, Xiaoying JIAN
  • Publication number: 20230403923
    Abstract: A method for patterning a quantum dot layer comprises: forming, on a substrate (1), a front film layer and a sacrificial layer (5) which are stacked in sequence, wherein one of the sacrificial layer and the front film layer is hydrophilic, and the other of the sacrificial layer and the front film layer is hydrophobic; forming a photoresist (6) having a through hole on the sacrificial layer, wherein the through hole corresponds to a target region, and etching the sacrificial layer in the target region under the shielding of the photoresist; laying a quantum dot material, and curing the quantum dots material of the target region; and removing the remaining sacrificial layer and the photoresist, and forming a patterned quantum dot layer in the target region.
    Type: Application
    Filed: December 16, 2020
    Publication date: December 14, 2023
    Inventor: Xiaoyuan ZHANG
  • Patent number: 11834595
    Abstract: A method for manufacturing a quantum dot film is provided. A substrate plate is provided. A plurality of quantum dot material layers capable of emitting light having different colors are sequentially formed on the substrate plate, wherein at least one of the quantum dot material layers includes a plurality of quantum dots. A local crosslinking process is performed on at least one of the quantum dot material layers, so as to crosslink the crosslinkable ligands in a region emitting light having a corresponding color in the quantum dot material layer. A fluorescence quenching process is performed on the quantum dot material layer subjected to the local crosslinking process, so as to quench the fluorescence of quantum dots outside the region emitting light having the corresponding color in the quantum dot material layer. A display panel and a method for manufacturing the same are also provided.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: December 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiaoyuan Zhang
  • Publication number: 20230136368
    Abstract: Provided are a keyword extraction method applicable to a Word text, an electronic device, and a computer-readable storage medium. The method includes: acquiring a text and extracting a body of the text; extracting a set number of keywords in the body by a TFIDF algorithm and a set number of keywords in the body by a TextRank algorithm, respectively; acquiring a text name and a text title of the text and segmenting the text name and the text title into words of the text name and words of the text title; constructing text feature vectors of the text and inputting the text feature vectors into a trained keyword extraction model; and extracting a keyword set from the keywords extracted by the TextRank algorithm by using the keyword extraction model to achieve text keyword extraction.
    Type: Application
    Filed: August 18, 2020
    Publication date: May 4, 2023
    Inventors: Xiaoyuan Zhang, Xiao Chen, Xiangxiang MA
  • Publication number: 20230122661
    Abstract: Provided are a text duplicate checking method, an electronic device and a computer-readable storage medium. The method includes storing a fingerprint set and a corresponding text ID in a byte data manner to obtain a fingerprint library; acquiring a target text and creating a target fingerprint; obtaining a comparison fingerprint set from map memories according to the target fingerprint, and calculating a similarity between the target fingerprint and each comparison fingerprint in the comparison fingerprint set separately; and based on a determination result that a number of 1 s in binary values of one similarity is less than or equal to a preset value, querying a text ID corresponding to the one similarity, to implement duplicate checking of the target text.
    Type: Application
    Filed: August 12, 2020
    Publication date: April 20, 2023
    Inventors: Xiaoyuan Zhang, Xiao Chen
  • Publication number: 20230119074
    Abstract: Embodiments of the present disclosure provide a quantum dot ligand, a quantum dot material, and a quantum dot light emitting device. In a quantum dot ligand of general formula (I), n is 1, 2, 3, or 4; two of X, Y, and Z are G1 group and G2 group, respectively, and the remaining one is selected from the group consisting of G1 group, G2 group, and hydrogen, wherein the G1 group, for each occurrence, is independently selected from —(CH2)m-L-(CH2)n—R1, wherein R1 is a coordination group, m is 0 to 6, n is 0 to 6, and L is a divalent group or absent; the G2 group, for each occurrence, is independently selected from a C4-20 alkyl having a carbon chain with more than 4 carbon atoms.
    Type: Application
    Filed: September 17, 2019
    Publication date: April 20, 2023
    Inventors: Wenhai MEI, Zhenqi ZHANG, Xiaoyuan ZHANG
  • Patent number: 11611015
    Abstract: Disclosed are a quantum dot display panel, a manufacturing method thereof and a display device. The manufacturing method includes: forming a first functional layer on a substrate; processing the first functional layer so that the first functional layer includes a processed region and the processed region includes ions having a first polarity; forming a quantum dot layer having a second polarity in the processed region. The second polarity and the first polarity are opposite electrical polarities.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 21, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenhai Mei, Xiaoyuan Zhang
  • Publication number: 20230074925
    Abstract: A quantum dot light emitting diode and a method for manufacturing the same are provided, a display panel, and a display device, belonging to the display technical field. The quantum dot light emitting diode comprises: a base substrate; a first electrode, a first electron transport layer, a second electron transport layer, a quantum dot light emitting layer, a hole transport layer, a hole injection layer and a second electrode successively located on the base substrate, where a surface roughness of a side of the first electron transport layer away from the first electrode is less than a threshold, and the second electron transport layer is composed of nanoparticles.
    Type: Application
    Filed: June 8, 2021
    Publication date: March 9, 2023
    Inventor: Xiaoyuan ZHANG
  • Publication number: 20230021056
    Abstract: A method of patterning a light-emitting layer and a method of manufacturing a light-emitting diode device are provided, including: providing a substrate; forming a first electrode layer on the substrate; forming a sacrificial layer on the first electrode layer; patterning the sacrificial layer to remove the sacrificial layer in a first region of the substrate and retain the sacrificial layer in a second region of the substrate, the first electrode layer is at least partially located in the first region; forming a first carrier auxiliary layer in the first region and the second region; forming a light-emitting layer on the first carrier auxiliary layer, and removing the retained sacrificial layer in the second region and the first carrier auxiliary layer and the light-emitting layer covering the retained sacrificial layer, and retaining the first carrier auxiliary layer and the light-emitting layer in the first region, to pattern the light-emitting layer.
    Type: Application
    Filed: May 28, 2021
    Publication date: January 19, 2023
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoyuan ZHANG, Hu MENG
  • Publication number: 20220310983
    Abstract: Embodiments of the present disclosure provide a quantum dot light emitting device, a preparation method thereof and a quantum dot display panel, the method includes: forming a first function layer; forming a first sacrificial layer and a first photoresist layer; patterning the first photoresist; patterning the first sacrificial layer, the first function layer includes a first part and a second part, and the first sacrificial layer pattern and the first photoresist pattern are stacked on the first part, the second part is exposed by the first sacrificial layer pattern and the first photoresist pattern; forming a first quantum dot material layer; stripping the first sacrificial layer pattern to remove the first sacrificial layer pattern, the first photoresist pattern and the first quantum dot material layer on the first sacrificial layer pattern, retaining the first quantum dot material layer on the second part of the first function layer.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 29, 2022
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Wenhai Mei, Zhenqi Zhang, Aidi Zhang, Xiaoyuan Zhang, Haowei Wang
  • Patent number: 11456999
    Abstract: A network monitoring apparatus, and a remote encryption and remote activation method, device and system thereof are provided. The method includes the following steps: receiving an encrypted activation password sent by a client terminal; decrypting the encrypted activation password to obtain an original activation password; determining whether the original activation password meets a predetermined password strength requirement; when the original activation password meets the predetermined password strength requirement, activating the network monitoring apparatus and setting the original activation password as an administrator password; and returning information indicating that the network monitoring apparatus is successfully activated to the client terminal. A network monitoring apparatus, an encryption method of a network monitoring apparatus based on a client terminal, a client terminal, and a remote activation system based on a network monitoring apparatus are also provided.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: September 27, 2022
    Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
    Inventors: Zhenlei Zhu, Yadong Pan, Kui Li, Lujie Si, Xiaoyuan Zhang
  • Patent number: 11376274
    Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: July 5, 2022
    Assignees: SHANDONG ACADEMY OF PHARMACEUTICAL SCIENCES, SHANDONG FREDA PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Peixue Ling, Fei Liu, Huarong Shao, Lei Chen, Zhiyun Zhang, Xiaoyuan Zhang, Qixin Chen, Guanying Han, Yanling Cheng, Jianqiang Zhang, Daizhou Zhang
  • Publication number: 20220127527
    Abstract: The present disclosure provides a method for manufacturing a quantum dot film, comprising: providing a substrate plate; sequentially forming a plurality of quantum dot material layers capable of emitting light having different colors on the substrate plate, wherein at least one of the quantum dot material layers comprises a plurality of quantum dots; performing a local crosslinking process on at least one of the quantum dot material layers, so as to crosslink the crosslinkable ligands in a region emitting light having a corresponding color in the quantum dot material layer, and performing a fluorescence quenching process on the quantum dot material layer subjected to the local crosslinking process, so as to quench the fluorescence of quantum dots outside the region emitting light having the corresponding color in the quantum dot material layer. The present disclosure further provides a display panel and a method for manufacturing the same.
    Type: Application
    Filed: June 21, 2021
    Publication date: April 28, 2022
    Inventor: Xiaoyuan ZHANG
  • Publication number: 20210388259
    Abstract: The present disclosure relates to a ligand for a quantum dot, a ligand quantum dot, a quantum dot layer and a method for patterning the same. The surface of the ligand quantum dot of the present disclosure is connected with the cleavage-type ligand including a first ligand unit A, a cleavage unit B, and an adhesion adjusting unit C. The method includes: providing a substrate; coating a mixture containing the ligand quantum dot on the substrate to form a quantum dot film; exposing a preset region of the quantum dot film to ultraviolet light, so that the cleavage unit B in the cleavage-type ligand undergoes a photolysis reaction, and a molecular segment containing the adhesion adjusting unit C and obtained after decomposition is detached from a surface of the quantum dot; and washing off an unexposed region of the quantum dot film with an organic solvent, followed by drying.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 16, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenhai MEI, Zhenqi ZHANG, Aidi ZHANG, Xiaoyuan ZHANG, Haowei WANG
  • Publication number: 20210353662
    Abstract: A joint cavity injection preparation is provided. The active ingredient of the joint cavity injection preparation is deacetylated xanthan gum (XG). The deacetylated XG has a molecular weight of 500,000 to 20,000,000. The joint cavity injection preparation is prepared from deacetylated xanthan gum (XG), which has higher biocompatibility and safe wide-dosage range than existing joint cavity injection preparations prepared from XG.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 18, 2021
    Applicants: SHANDONG ACADEMY OF PHARMACEUTICAL SCIENCES, SHANDONG FREDA PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Peixue LING, Fei LIU, Huarong SHAO, Lei CHEN, Zhiyun ZHANG, Xiaoyuan ZHANG, Qixin CHEN, Guanying HAN, Yanling CHENG, Jianqiang ZHANG, Daizhou ZHANG
  • Publication number: 20210314304
    Abstract: A network monitoring apparatus, and a remote encryption and remote activation method, device and system thereof are provided. The method includes the following steps: receiving an encrypted activation password sent by a client terminal; decrypting the encrypted activation password to obtain an original activation password; determining whether the original activation password meets a predetermined password strength requirement; when the original activation password meets the predetermined password strength requirement, activating the network monitoring apparatus and setting the original activation password as an administrator password; and returning information indicating that the network monitoring apparatus is successfully activated to the client terminal. A network monitoring apparatus, an encryption method of a network monitoring apparatus based on a client terminal, a client terminal, and a remote activation system based on a network monitoring apparatus are also provided.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 7, 2021
    Inventors: Zhenlei Zhu, Yadong Pan, Kui Li, Lujie Si, Xiaoyuan Zhang
  • Publication number: 20210226084
    Abstract: Disclosed are a quantum dot display panel, a manufacturing method thereof and a display device. The manufacturing method includes: forming a first functional layer on a substrate; processing the first functional layer so that the first functional layer includes a processed region and the processed region includes ions having a first polarity; forming a quantum dot layer having a second polarity in the processed region. The second polarity and the first polarity are opposite electrical polarities.
    Type: Application
    Filed: December 18, 2019
    Publication date: July 22, 2021
    Inventors: Wenhai MEI, Xiaoyuan ZHANG
  • Patent number: 11019041
    Abstract: A network monitoring apparatus, and a remote encryption and remote activation method, device and system thereof are provided. The method includes the following steps: receiving an encrypted activation password sent by a client terminal; decrypting the encrypted activation password to obtain an original activation password; determining whether the original activation password meets a predetermined password strength requirement; when the original activation password meets the predetermined password strength requirement, activating the network monitoring apparatus and setting the original activation password as an administrator password; and returning information indicating that the network monitoring apparatus is successfully activated to the client terminal. A network monitoring apparatus, an encryption method of a network monitoring apparatus based on a client terminal, a client terminal, and a remote activation system based on a network monitoring apparatus are also provided.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 25, 2021
    Inventors: Zhenlei Zhu, Yadong Pan, Kui Li, Lujie Si, Xiaoyuan Zhang
  • Patent number: 10542064
    Abstract: A method, a server and a system for calculating bandwidth of UDP-based streaming media network transmission. The method includes: dividing video frame data to be sent into a plurality of sub-video frame packets, sending a sub-video frame packet with a preset serial number to a client, and receiving a response message sent by the client, wherein the response message includes a first serial number and a second serial number; sending a sub-video frame packet corresponding to the first serial number to the client, and determining whether the client has received all sub-video frame packets of the video frame data; if so, accurately calculating the actual bandwidth of the current network based on the sending start time of the first sub-video frame packet of the video frame data, the sending end time of the last sub-video frame packet of the video frame data and the size of the video frame data, which provides a basis for the self-adaption of the encoding rate.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: January 21, 2020
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventors: Yadong Pan, Kui Li, Xiaoyuan Zhang