Patents by Inventor Dan Bai

Dan Bai 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: 20250089460
    Abstract: Display panels are provided according to embodiments of the present disclosure. The display panel includes: a substrate, anodes disposed on the substrate, an inorganic barrier layer, and a pixel definition layer. The inorganic barrier layer includes barrier parts, and the anodes are arranged at intervals between the barrier parts. The pixel definition layer includes pixel definition parts each covering the barrier part and a part of the anode. An orthographic projection of a side of the barrier part adjacent to the substrate on the substrate is located within an orthographic projection of a side of the barrier part away from the substrate on the substrate.
    Type: Application
    Filed: May 12, 2023
    Publication date: March 13, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Dan BAI, Yu ZHAO
  • Publication number: 20250072112
    Abstract: A display panel and a display device are provided. The display panel includes a substrate, a ladder structure, and an electrode layer disposed in a stack. The ladder structure is located in an encapsulation region. The ladder structure includes a first film layer and a second film layer disposed in a stack. An undercut opening is defined on a lateral side of the first film layer. The second film layer includes a first sub-layer and a second sub-layer disposed in a stack. A thickness of the second sub-layer is greater than a thickness of the first sub-layer. The first sub-layer is a metal film layer. The second sub-layer is an organic film layer.
    Type: Application
    Filed: April 19, 2022
    Publication date: February 27, 2025
    Inventor: Dan BAI
  • Publication number: 20250008775
    Abstract: Display panels are provided according to embodiments of the present disclosure. The display panel includes a substrate, anodes disposed on the substrate, and a pixel definition layer. The anodes include at least one first sub-anode and at least one second sub-anode adjacent to first sub-anode. A difference between a first distance between a side of the first sub-anode away from the substrate and the substrate and a second distance between a side of the second sub-anode away from the substrate and the substrate is greater than or equal to a thickness of the second sub-anode.
    Type: Application
    Filed: May 12, 2023
    Publication date: January 2, 2025
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Dan BAI, Yu ZHAO
  • Patent number: 11997869
    Abstract: A display panel and a display device are provided. A first organic layer of the display panel forms a first barrier portion in a transition area. A first metal layer forms a second barrier portion in the transition area. The second barrier portion covers an upper surface and a first side surface of the first barrier portion, and extends away from the first side surface and beyond a boundary of the upper surface of the first barrier portion, so as to form an undercut structure. Therefore, the problem that in conventional OLED products, water and oxygen gas are easily transmitted from outside of the display panel to inside using the emission layer is alleviated.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: May 28, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Dan Bai, Yu Zhao
  • Patent number: 11973084
    Abstract: The present invention discloses an array substrate, a manufacturing method thereof, and a display device thereof. The array substrate includes a substrate; a plurality of first thin film transistors, the first thin film transistors including a first gate electrode layer and a second gate electrode layer; a plurality of second thin film transistors, the second thin film transistors including a third gate electrode layer; and a gate electrode insulation layer disposed between the first gate electrode layer and the second gate electrode layer, and the third gate electrode layer located near a surface of a side of the substrate. The gate electrode insulation layer is silicon nitride material.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 30, 2024
    Assignees: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dan Bai
  • Publication number: 20230049125
    Abstract: A display panel and a display device are provided. A first organic layer of the display panel forms a first barrier portion in a transition area. A first metal layer forms a second barrier portion in the transition area. The second barrier portion covers an upper surface and a first side surface of the first barrier portion, and extends away from the first side surface and beyond a boundary of the upper surface of the first barrier portion, so as to form an undercut structure. Therefore, the problem that in conventional OLED products, water and oxygen gas are easily transmitted from outside of the display panel to inside using the emission layer is alleviated.
    Type: Application
    Filed: September 2, 2021
    Publication date: February 16, 2023
    Inventors: Dan BAI, Yu ZHAO
  • Publication number: 20220328534
    Abstract: The present invention discloses an array substrate, a manufacturing method thereof, and a display device thereof. The array substrate includes a substrate; a plurality of first thin film transistors, the first thin film transistors including a first gate electrode layer and a second gate electrode layer; a plurality of second thin film transistors, the second thin film transistors including a third gate electrode layer; and a gate electrode insulation layer disposed between the first gate electrode layer and the second gate electrode layer, and the third gate electrode layer located near a surface of a side of the substrate. The gate electrode insulation layer is silicon nitride material.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 13, 2022
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dan BAI
  • Patent number: 11289673
    Abstract: The present application provides a display panel and a manufacturing of the display panel, the display panel includes a substrate, a thin film transistor layer, and a light emitting layer successively laminated and formed. The light emitting layer includes an anode layer, a light emitting portion, and a cathode layer successively laminated and formed. The anode layer includes a laminated structure, the laminated structure includes at least one first sub layer and at least one second sub layer alternant formed on the thin film transistor layer, the laminated structure is used to form a Bragg reflection, thereby improving display quality of the display panel.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 29, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dan Bai
  • Publication number: 20210043865
    Abstract: The present application provides a display panel and a manufacturing of the display panel, the display panel includes a substrate, a thin film transistor layer, and a light emitting layer successively laminated and formed. The light emitting layer includes an anode layer, a light emitting portion, and a cathode layer successively laminated and formed. The anode layer includes a laminated structure, the laminated structure includes at least one first sub layer and at least one second sub layer alternant formed on the thin film transistor layer, the laminated structure is used to form a Bragg reflection, thereby improving display quality of the display panel.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 11, 2021
    Inventor: Dan BAI
  • Patent number: 10818739
    Abstract: The present invention provides an OLED back plate and a manufacture method thereof. In the manufacture method of the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, and the planarization layer can serve as the mask of the etching process of the interlayer dielectric layer, and also can make the surface of the second source made on the surface thereof be flattened, which is advantageous to increase the area of the OLED light emitting area and to increase the aperture ratio. In the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, the surface of the second source made on the surface of the planarization layer is flattened, of which the OLED light emitting area is larger and the aperture ratio is higher.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 27, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dan Bai, Yuanjun Hsu
  • Publication number: 20190393449
    Abstract: An organic light emitting display device is provided, including a substrate, an organic light emitting structure, and a display screen. The organic light emitting structure is disposed between the substrate and the display screen, for emitting light to the display screen. The display screen includes an organic photoresist layer, which is doped with nanoparticles, which have a function of refracting light emitted by the organic light emitting structure toward an outside.
    Type: Application
    Filed: March 10, 2017
    Publication date: December 26, 2019
    Inventors: DAN BAI, XIANJIE LI
  • Patent number: 10514500
    Abstract: An integrated device and a fabrication method thereof are provided. In the device, by using various anisotropic silicon etching techniques, the silicon substrate layer and the expitaxial buffer layer under the device structure are removed, an ultra-thin device monolithically integrated with a suspended LED, an optical waveguide and a photodetector is obtained by further using the nitride back thinning etching technique. In the device, the light source, the optical waveguide and the photodetector are integrated on the same chip. The light emitted by the LED is laterally coupled to the optical waveguide, transmitted over the optical waveguide, and detected by the photodetector at the other end of the optical waveguide, thereby achieving a planar photon monolithically integrated device which is applied in the fields of optical transmission and optical sensing.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: December 24, 2019
    Assignee: Nanjing University of Posts and Telecommunications
    Inventors: Yongjin Wang, Guixia Zhu, Dan Bai, Jialei Yuan, Yin Xu
  • Patent number: 10476035
    Abstract: A flexible display apparatus is provided in the present disclosure and includes a flexible substrate, an organic electroluminescent device, and a plurality of thin film transistors disposed between the flexible substrate and the organic electroluminescent device. The organic electroluminescent device is controlled by the thin film transistors to emit light. The flexible substrate is doped with a plurality of nano-particles that are configured to refract the light emitted from the organic light-emitting layer to an external environment.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: November 12, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Dan Bai
  • Publication number: 20190288045
    Abstract: The present invention provides an OLED back plate and a manufacture method thereof. In the manufacture method of the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, and the planarization layer can serve as the mask of the etching process of the interlayer dielectric layer, and also can make the surface of the second source made on the surface thereof be flattened, which is advantageous to increase the area of the OLED light emitting area and to increase the aperture ratio. In the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, the surface of the second source made on the surface of the planarization layer is flattened, of which the OLED light emitting area is larger and the aperture ratio is higher.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 19, 2019
    Inventors: Dan Bai, Yuanjun Hsu
  • Patent number: 10386574
    Abstract: By using various anisotropic silicon etching techniques, a silicon substrate layer (1) and an epitaxial buffer layer (2) under the device structure are removed to obtain a monolithic photonic integration of silicon substrate suspended light-emitting diode (LED) with optical waveguide, and an ultra-thin device monolithically integrated with a suspended LED and an optical waveguide is obtained by further using the nitride back thinning etching technique. Therefore, internal loss of the LED is reduced and light emitting efficiency is improved. In the device according to the present disclosure, the light source and the optical waveguide are integrated on the same wafer, which solves the problem of monolithic integration of planar photons, enables the light emitted by the LED to be transmitted along the optical waveguide, addresses the problem of transmission of light in the optical waveguide, and implements the function of transmitting light within a plane.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: August 20, 2019
    Assignee: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Yongjin Wang, Guixia Zhu, Dan Bai, Jialei Yuan, Yin Xu, Hongbo Zhu
  • Patent number: 10361256
    Abstract: The present invention provides an OLED back plate and a manufacture method thereof. In the manufacture method of the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, and the planarization layer can serve as the mask of the etching process of the interlayer dielectric layer, and also can make the surface of the second source made on the surface thereof be flattened, which is advantageous to increase the area of the OLED light emitting area and to increase the aperture ratio. In the OLED back plate of the present invention, by forming the planarization layer on the interlayer dielectric layer, the surface of the second source made on the surface of the planarization layer is flattened, of which the OLED light emitting area is larger and the aperture ratio is higher.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: July 23, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Dan Bai, Yuanjun Hsu
  • Publication number: 20190173056
    Abstract: A flexible display apparatus is provided in the present disclosure and includes a flexible substrate, an organic electroluminescent device, and a plurality of thin film transistors disposed between the flexible substrate and the organic electroluminescent device. The organic electroluminescent device is controlled by the thin film transistors to emit light. The flexible substrate is doped with a plurality of nano-particles that are configured to refract the light emitted from the organic light-emitting layer to an external environment.
    Type: Application
    Filed: January 4, 2018
    Publication date: June 6, 2019
    Inventor: Dan BAI
  • Publication number: 20180275340
    Abstract: An integrated device and a fabrication method thereof are provided. In the device, by using various anisotropic silicon etching techniques, the silicon substrate layer and the expitaxial buffer layer under the device structure are removed, an ultra-thin device monolithically integrated with a suspended LED, an optical waveguide and a photodetector is obtained by further using the nitride back thinning etching technique. In the device, the light source, the optical waveguide and the photodetector are integrated on the same chip. The light emitted by the LED is laterally coupled to the optical waveguide, transmitted over the optical waveguide, and detected by the photodetector at the other end of the optical waveguide, thereby achieving a planar photon monolithically integrated device which is applied in the fields of optical transmission and optical sensing.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 27, 2018
    Applicant: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Yongjin WANG, Guixia ZHU, Dan BAI, Jialei YUAN, Yin XU
  • Publication number: 20180267238
    Abstract: By using various anisotropic silicon etching techniques, a silicon substrate layer (1) and an expitaxial buffer layer (2) under the device structure are removed to obtain a monolithic photonic integration of silicon substrate suspended light-emitting diode (LED) with optical waveguide, and an ultra-thin device monolithically integrated with a suspended LED and an optical waveguide is obtained by further using the nitride back thinning etching technique. Therefore, internal loss of the LED is reduced and light emitting efficiency is improved. In the device according to the present disclosure, the light source and the optical waveguide are integrated on the same wafer, which solves the problem of monolithic integration of planar photons, enables the light emitted by the LED to be transmitted along the optical waveguide, addresses the problem of transmission of light in the optical waveguide, and implements the function of transmitting light within a plane.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 20, 2018
    Applicant: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Yongjin WANG, Guixia ZHU, Dan BAI, Jialei YUAN, Yin XU, Hongbo ZHU
  • Patent number: D1043414
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: September 24, 2024
    Inventor: Dan Bai