Patents by Inventor Duanming Li

Duanming 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: 20230171991
    Abstract: The present disclosure relates to a display panel and a display device thereof. The display panel includes: a substrate; an organic light-emitting device located on the substrate; a cover layer located on the organic light-emitting device; a light extraction layer located on the cover layer; an optical functional layer located on the light extraction layer; and an encapsulation layer located on the optical functional layer. A refractive index of the light extraction layer is less than a refractive index of the cover layer and less than a refractive index of a portion of the encapsulation layer closest to the optical functional layer. A refractive index of the optical functional layer is less than the refractive index of the portion of the encapsulation layer closest to the optical functional layer and not equal to the refractive index of the light extraction layer.
    Type: Application
    Filed: October 25, 2021
    Publication date: June 1, 2023
    Inventors: Baoke HE, Duanming LI, Minghao GAO, Qin ZHANG, Quanqin SUN
  • Publication number: 20230022371
    Abstract: Provided are a light-emitting device and a manufacturing method thereof, and a display device, and relates to the field of display technology. The light-emitting device includes: a light-emitting unit located on one side of a backplane; and an encapsulation layer located on one side of the light-emitting unit away from the backplane. The encapsulation layer includes: a first inorganic layer; a second inorganic layer located on one side of the first inorganic layer away from the backplane; an organic layer located between the first inorganic layer and the second inorganic layer; and a third inorganic layer located between the first inorganic layer and the organic layer. The refractive index of the first inorganic layer, the refractive index of the third inorganic layer, and the refractive index of the organic layer decrease sequentially.
    Type: Application
    Filed: September 1, 2021
    Publication date: January 26, 2023
    Inventors: Baoke He, Duanming Li, Minghao Gao, Quanqin Sun, Guanjun Huang, Qin Zhang
  • Publication number: 20220316051
    Abstract: The mask includes: a mask body provided with a shielding part configured to shield an IC region between two adjacent panels sharing a base substrate; and the shielding part includes a reinforcing portion and a thinned portion, and the thinned portion has an accommodating recess with an opening facing the base substrate to be configured to accommodate a driving IC in the IC region.
    Type: Application
    Filed: October 22, 2021
    Publication date: October 6, 2022
    Inventors: Lirui YAN, Rong JIN, Chuan SHI, Jikun PENG, Duanming LI
  • Patent number: 11404665
    Abstract: An encapsulation method of a display panel, a display panel and a display device are disclosed. The encapsulation method of the display panel includes: forming at least one thin film encapsulation inorganic material layer on a thin film encapsulation region of a display substrate; forming a photoresist pattern on the at least one thin film encapsulation inorganic material layer; and etching the at least one thin film encapsulation inorganic material layer by using the photoresist pattern as a mask to form a thin film encapsulation inorganic layer including a first opening pattern.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: August 2, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Quanqin Sun, Song Zhang, Ang Xiao, Duanming Li
  • Patent number: 11380712
    Abstract: The disclosure relates to a display panel. The display panel may have a display area, a transition area, and a via hole area. The transition area may be between the via hole area and the display area. The display panel may include a substrate; an isolation structure on the substrate only in the transition area; and an encapsulation layer in both of the transition area and the display area. A first side surface of the isolation structure facing the via hole area may include a recess toward an interior of the isolation structure, and the encapsulation layer may include a cavity surrounding the isolation structure in the recess.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: July 5, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qin Zhang, Duanming Li, Guowei Li
  • Publication number: 20220006046
    Abstract: The present disclosure provides a display panel, a method for packaging the same, and a display device. The display panel comprises a display substrate and at least one package film layer covering the display substrate, wherein the package film layer comprises a first inorganic film, a second inorganic film, an organic film and a third inorganic film laminated on the display substrate in sequence, wherein an adhesion between a material of the first inorganic film and a material of the organic film is less than an adhesion between a material of the second inorganic film and a material of the organic film.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 6, 2022
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaodong YANG, Duanming LI, Quanqin SUN, Qin ZHANG, Shuai ZHANG
  • Publication number: 20210408064
    Abstract: The disclosure relates to a display panel. The display panel may have a display area, a transition area, and a via hole area. The transition area may be between the via hole area and the display area. The display panel may include a substrate; an isolation structure on the substrate only in the transition area; and an encapsulation layer in both of the transition area and the display area. A first side surface of the isolation structure facing the via hole area may include a recess toward an interior of the isolation structure, and the encapsulation layer may include a cavity surrounding the isolation structure in the recess.
    Type: Application
    Filed: December 4, 2019
    Publication date: December 30, 2021
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qin Zhang, Duanming Li, Guowei Li
  • Publication number: 20210359253
    Abstract: An encapsulation method of a display panel, a display panel and a display device are disclosed. The encapsulation method of the display panel includes: forming at least one thin film encapsulation inorganic material layer on a thin film encapsulation region of a display substrate; forming a photoresist pattern on the at least one thin film encapsulation inorganic material layer; and etching the at least one thin film encapsulation inorganic material layer by using the photoresist pattern as a mask to form a thin film encapsulation inorganic layer including a first opening pattern.
    Type: Application
    Filed: August 17, 2018
    Publication date: November 18, 2021
    Inventors: Quanqin SUN, Song ZHANG, Ang XIAO, Duanming LI
  • Patent number: 10329666
    Abstract: A vapor deposition apparatus, including: a reaction device having a reaction chamber; a first gas duct connected to the reaction chamber and configured to direct a process gas into the reaction chamber; a gas ionization device connected to the reaction device and configured to ionize a cleaning gas; and a second gas duct connected to the gas ionization device and configured to direct the cleaning gas into the gas ionization device; a common gas duct; and a three-way control mechanism. An end of the common gas duct is connected to the reaction chamber and the other end of the common gas duct is connected to a first gas port of the three-way control mechanism; the first gas duct and the gas ionization device are connected to a second gas port and a third gas port of the three-way control mechanism, respectively.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: June 25, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Rui Zhang, Duanming Li, Kuohua Liao, Beum Ku Park
  • Publication number: 20170204517
    Abstract: A vapor deposition apparatus, including: a reaction device having a reaction chamber; a first gas duct connected to the reaction chamber and configured to direct a process gas into the reaction chamber; a gas ionization device connected to the reaction device and configured to ionize a cleaning gas; and a second gas duct connected to the gas ionization device and configured to direct the cleaning gas into the gas ionization device; a common gas duct; and a three-way control mechanism. An end of the common gas duct is connected to the reaction chamber and the other end of the common gas duct is connected to a first gas port of the three-way control mechanism; the first gas duct and the gas ionization device are connected to a second gas port and a third gas port of the three-way control mechanism, respectively.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 20, 2017
    Inventors: Rui Zhang, Duanming Li, Kuohua Liao, Beum Ku Park