Patents by Inventor Yudi Gao

Yudi Gao 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: 11915962
    Abstract: The present invention provides a display panel and manufacturing method thereof, the method including following steps: providing a driving backplane and a light-emitting substrate, and bonding the driving backplane and the light-emitting substrate; patterning the light-emitting substrate to form a pixel array; forming a thin film packaging layer on an outside of the pixel array, the thin film packaging layer completely covering the pixel array; forming quantum dots on top of the thin film packaging layer to form a multi-color display; forming a reflective array between two adjacent quantum dots to avoid optical crosstalk between the pixel arrays. The display panel and the method of the present invention break through the physical limit of the high PPI, high-precision metal mask, which can realize the display of 2000 and higher PPI, and can prevent the optical crosstalk between the pixel arrays.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 27, 2024
    Assignee: KUNSHAN FANTAVIEW ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Xiaosong Du, Xiaolong Yang, Wenbin Zhou, Feng Zhang, Jian Sun, Yudi Gao
  • Publication number: 20230120428
    Abstract: The present invention provides a silicon-based micro display screen and method for manufacturing the same. The method includes following steps: providing a silicon substrate, defining a number of sub-pixel regions on the silicon substrate, and sequentially and respectively preparing an anode layer, an OLED layer, a cathode layer and a first protective layer in each sub-pixel region on the silicon substrate; plasma bombarding and removing the exposed OLED layer; forming a second protective layer on sides of the etched cathode layer, the protective layer and the OLED layer; sequentially performing other sub-pixels; and processing and forming a silicon-based micro-display screen based on the results of the above steps. In present invention, the etching and coating processes are carried out in a vacuum environment to prevent the OLED layer from being invaded by water vapor and oxygen, and prolong the service life of the silicon-based micro display screen.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 20, 2023
    Inventors: XIAOSONG DU, XIAOLONG YANG, WENBIN ZHOU, FENG ZHANG, JIAN SUN, YUDI GAO
  • Publication number: 20230109132
    Abstract: The present invention provides a display panel and manufacturing method thereof, the method including following steps: providing a driving backplane and a light-emitting substrate, and bonding the driving backplane and the light-emitting substrate; patterning the light-emitting substrate to form a pixel array; forming a thin film packaging layer on an outside of the pixel array, the thin film packaging layer completely covering the pixel array; forming quantum dots on top of the thin film packaging layer to form a multi-color display; forming a reflective array between two adjacent quantum dots to avoid optical crosstalk between the pixel arrays. The display panel and the method of the present invention break through the physical limit of the high PPI, high-precision metal mask, which can realize the display of 2000 and higher PPI, and can prevent the optical crosstalk between the pixel arrays.
    Type: Application
    Filed: April 30, 2020
    Publication date: April 6, 2023
    Inventors: XIAOSONG DU, XIAOLONG YANG, WENBIN ZHOU, FENG ZHANG, JIAN SUN, YUDI GAO
  • Patent number: 11005083
    Abstract: The present invention provides a high-resolution Micro-OLED display module and a manufacturing method thereof. The method for manufacturing the high-resolution Micro-OLED comprises: S1, providing a substrate, and manufacturing light-emitting pixel units on the substrate; S2, encapsulating the light-emitting pixel units by a film encapsulation technique, and forming a film encapsulation layer; S3, manufacturing sub-pixel units on the surface of the film encapsulation layer, and depositing a metal reflective layer between two sub-pixel units which are adjacent to each other; S4, manufacturing a metal oxide layer on the surfaces of the metal reflective layer and the sub-pixel units by a deposition technique, to obtain a high-resolution Micro-OLED matrix; and S5, using a cover plate to encapsulate the high-resolution Micro-OLED matrix produced in step S4, to finish the manufacturing of a high-resolution Micro-OLED.
    Type: Grant
    Filed: December 29, 2019
    Date of Patent: May 11, 2021
    Assignee: SUZHOU QINGYUE OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Xiaosong Du, Xiaolong Yang, Wenbin Zhou, Jian Sun, Yudi Gao
  • Publication number: 20200144557
    Abstract: The present invention provides a high-resolution Micro-OLED display module and a manufacturing method thereof. The method for manufacturing the high-resolution Micro-OLED comprises: S1, providing a substrate, and manufacturing light-emitting pixel units on the substrate; S2, encapsulating the light-emitting pixel units by a film encapsulation technique, and forming a film encapsulation layer; S3, manufacturing sub-pixel units on the surface of the film encapsulation layer, and depositing a metal reflective layer between two sub-pixel units which are adjacent to each other; S4, manufacturing a metal oxide layer on the surfaces of the metal reflective layer and the sub-pixel units by a deposition technique, to obtain a high-resolution Micro-OLED matrix; and S5, using a cover plate to encapsulate the high-resolution Micro-OLED matrix produced in step S4, to finish the manufacturing of a high-resolution Micro-OLED.
    Type: Application
    Filed: December 29, 2019
    Publication date: May 7, 2020
    Inventors: Xiaosong DU, Xiaolong Yang, Wenbin Zhou, Jian Sun, Yudi Gao
  • Patent number: 8390191
    Abstract: The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is Li3N. Said Li film is fabricated by decomposing Li3N at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450° C., and said Li film has a thickness of 0.3-5.0 nm. The present invention also relates to an organic light emitting device comprising said Li film as an electron injection layer and a method for the preparation thereof, and an organic light emitting device including an electron injection layer comprising an electron transport material doped with Li obtained by decomposing Li3N under a vacuum evaporation condition, and a method for the preparation thereof.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: March 5, 2013
    Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd., Kunshan Visionox Display Co., Ltd.
    Inventors: Yong Qiu, Deqiang Zhang, Yang Li, Guohui Zhang, Kongwu Wu, Lian Duan, Yudi Gao
  • Patent number: 8257128
    Abstract: The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is Li3N. Said Li film is fabricated by decomposing Li3N at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450° C., and said Li film has a thickness of 0.3-5.0 nm. The present invention also relates to an organic light emitting device comprising said Li film as an electron injection layer and a method for the preparation thereof, and an organic light emitting device including an electron injection layer comprising an electron transport material doped with Li obtained by decomposing Li3N under a vacuum evaporation condition, and a method for the preparation thereof.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: September 4, 2012
    Assignees: Tsinghua University, Beijing Visionox Technology, Kunshan Visionox Display Co., Ltd.
    Inventors: Yong Qiu, Deqiang Zhang, Yang Li, Guohui Zhang, Kongwu Wu, Lian Duan, Yudi Gao
  • Publication number: 20120138908
    Abstract: The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is Li3N. Said Li film is fabricated by decomposing Li3N at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450° C., and said Li film has a thickness of 0.3-5.0 nm. The present invention also relates to an organic light emitting device comprising said Li film as an electron injection layer and a method for the preparation thereof, and an organic light emitting device including an electron injection layer comprising an electron transport material doped with Li obtained by decomposing Li3N under a vacuum evaporation condition, and a method for the preparation thereof.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 7, 2012
    Inventors: Yong QIU, Deqiang Zhang, Yang Li, Guohui Zhang, Kongwu Wu, Lian Duan, Yudi Gao
  • Patent number: 7923924
    Abstract: The present invention relates to an organic electroluminescent display, including a substrate, a set of anodes, an organic functional layer, a set of cathodes and a packaging sheet, wherein a set of electrode leads are disposed on the packaging sheet for electrical connection with a control circuit of the display, and the electrode leads includes a set of anode leads and a set of cathode leads which are electrically connected with the corresponding anodes and cathodes on the substrate, respectively. The present invention further relates to a double-sided organic electroluminescent display having the above features.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: April 12, 2011
    Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd., Kunshan Visionox Technology Co., Ltd.
    Inventors: Yong Qiu, Shenfu Zhang, Guohui Zhang, Kongwu Wu, Yudi Gao
  • Patent number: 7786471
    Abstract: The present invention relates to an organic electroluminescence device comprising a substrate, an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode, wherein the electron injection layer contains alkali metal nitride and has a thickness of 0.2-10 nm. The organic electroluminescence device of the present invention has improved electron injection from the cathode to the organic layer, high device luminance and efficiency, long device lifetime, low material poisonousness, wide choice of film-forming thickness and low film-forming temperature.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 31, 2010
    Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.
    Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Liduo Wang
  • Patent number: 7501755
    Abstract: The present invention relates to an organic electroluminescence device and provides a new material composition scheme for an electron injection layer. The organic electroluminescence device of the present invention includes an electron injection layer which contains a material represented by formula AxByOz, wherein A is one of an alkali metal and an alkali earth metal, B is one of group VIII metals and 0<x?2, 0<y?3, 0<z?6. A is selected from one of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr and Ba. B is selected from one of Fe, Co, Ni, Ru, Rh, Pd, Os, Ir and Pt. The electron injection layer can be formed of Al and AxByOz. The electron injection layer has high electron injection ability, and the device has low threshold voltage, high luminance, high efficiency and long life.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: March 10, 2009
    Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.
    Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Wang Liduo
  • Publication number: 20090045737
    Abstract: The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is Li3N. Said Li film is fabricated by decomposing Li3N at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450° C., and said Li film has a thickness of 0.3-5.0 nm.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 19, 2009
    Inventors: Yong QIU, Deqiang ZHANG, Yang LI, Guohui ZHANG, Kongwu WU, Lian DUAN, Yudi GAO
  • Publication number: 20090001878
    Abstract: An organic electroluminescent device includes an anode, a cathode and an organic functional layer between the anode and the cathode, in which at least one of hole injection layer, hole transport layer and electron transport layer includes a host material and an inorganic inactive material doped in the host material, and the inorganic inactive material is a halide, oxide or carbonate of metal.
    Type: Application
    Filed: April 3, 2008
    Publication date: January 1, 2009
    Applicants: Tsinghua University, Beijing Visionox Technology Co., Ltd., Kunshan Visionox Technology Co., Ltd.
    Inventors: Yong Qiu, Jing Xie, Yudi Gao, Lian Duan
  • Publication number: 20080246393
    Abstract: The present invention relates to an organic electroluminescent display, including a substrate, a set of anodes, an organic functional layer, a set of cathodes and a packaging sheet, wherein a set of electrode leads are disposed on the packaging sheet for electrical connection with a control circuit of the display, and the electrode leads includes a set of anode leads and a set of cathode leads which are electrically connected with the corresponding anodes and cathodes on the substrate, respectively. The present invention further relates to a double-sided organic electroluminescent display having the above features.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 9, 2008
    Applicants: TSINGHUA UNIVERSITY, BEIJING VISIONOX TECHNOLOGY CO., LTD., KUNSHAN VISIONOX TECHNOLOGY CO., LTD.
    Inventors: Yong Qiu, Shenfu Zhang, Guohui Zhang, Kongwu Wu, Yudi Gao
  • Publication number: 20060232192
    Abstract: The present invention relates to an organic electroluminescence device comprising a substrate, an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode, wherein the electron injection layer contains alkali metal nitride and has a thickness of 0.2-10 nm. The organic electroluminescence device of the present invention has improved electron injection from the cathode to the organic layer, high device luminance and efficiency, long device lifetime, low material poisonousness, wide choice of film-forming thickness and low film-forming temperature.
    Type: Application
    Filed: November 30, 2005
    Publication date: October 19, 2006
    Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Liduo Wang
  • Publication number: 20060152145
    Abstract: The present invention relates to an organic electroluminescence device and provides a new material composition scheme for an electron injection layer. The organic electroluminescence device of the present invention includes an electron injection layer which contains a material represented by formula AxByOz, wherein A is one of an alkali metal and an alkali earth metal, B is one of group VIII metals and 0<x?2, 0<y?3, 0<z?6. A is selected from one of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr and Ba. B is selected from one of Fe, Co, Ni, Ru, Rh, Pd, Os, Ir and Pt. The electron injection layer can be formed of Al and AxByOz. The electron injection layer has high electron injection ability, and the device has low threshold voltage, high luminance, high efficiency and long life.
    Type: Application
    Filed: July 28, 2005
    Publication date: July 13, 2006
    Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Wang Liduo
  • Patent number: 6806491
    Abstract: An organic light-emitting device including a transparent substrate, a first electrode layer, a second electrode layer, a hole-transporting layer, and a electron-transporting layer sandwiched between the first and second electrode layers, wherein the hole-transporting layer consists of organic multiple-quantum-well structure. The multiple-quantum-well structure has a period number of alternating layers formed of a layer of organic material A with wide energy gap and a layer of organic material B with narrow energy gap. Organic material A and organic material B are selected such that the highest occupied molecular orbital (HOMO) levels of organic material A are lower than those of organic material B and the lowest unoccupied molecular orbital (LUMO) levels of organic material A are higher than those of organic material B.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: October 19, 2004
    Assignee: Tsinghua University
    Inventors: Yong Qiu, Yudi Gao, Peng Wei, Deqiang Zhang, Liduo Wang
  • Publication number: 20030197465
    Abstract: An organic light-emitting device including a transparent substrate, a first electrode layer, a second electrode layer, a hole-transporting layer, and a electron-transporting layer sandwiched between the first and second electrode layers, wherein the hole-transporting layer consists of organic multiple-quantum-well structure. The multiple-quantum-well structure has a period number of alternating layers formed of a layer of organic material A with wide energy gap and a layer of organic material B with narrow energy gap. Organic material A and organic material B are selected such that the highest occupied molecular orbital (HOMO) levels of organic material A are lower than those of organic material B and the lowest unoccupied molecular orbital (LUMO) levels of organic material A are higher than those of organic material B.
    Type: Application
    Filed: January 24, 2003
    Publication date: October 23, 2003
    Inventors: Yong Qiu, Yudi Gao, Peng Wei, Deqiang Zhang, Liduo Wang