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).
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Patent number: 11915962Abstract: 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: GrantFiled: April 30, 2020Date of Patent: February 27, 2024Assignee: KUNSHAN FANTAVIEW ELECTRONIC TECHNOLOGY CO., LTD.Inventors: Xiaosong Du, Xiaolong Yang, Wenbin Zhou, Feng Zhang, Jian Sun, Yudi Gao
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Publication number: 20230120428Abstract: 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: ApplicationFiled: April 30, 2020Publication date: April 20, 2023Inventors: XIAOSONG DU, XIAOLONG YANG, WENBIN ZHOU, FENG ZHANG, JIAN SUN, YUDI GAO
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Publication number: 20230109132Abstract: 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: ApplicationFiled: April 30, 2020Publication date: April 6, 2023Inventors: XIAOSONG DU, XIAOLONG YANG, WENBIN ZHOU, FENG ZHANG, JIAN SUN, YUDI GAO
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Patent number: 11005083Abstract: 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: GrantFiled: December 29, 2019Date of Patent: May 11, 2021Assignee: SUZHOU QINGYUE OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Xiaosong Du, Xiaolong Yang, Wenbin Zhou, Jian Sun, Yudi Gao
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Publication number: 20200144557Abstract: 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: ApplicationFiled: December 29, 2019Publication date: May 7, 2020Inventors: Xiaosong DU, Xiaolong Yang, Wenbin Zhou, Jian Sun, Yudi Gao
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Patent number: 8390191Abstract: 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: GrantFiled: November 29, 2011Date of Patent: March 5, 2013Assignees: 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
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Patent number: 8257128Abstract: 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: GrantFiled: August 15, 2008Date of Patent: September 4, 2012Assignees: 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
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Publication number: 20120138908Abstract: 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: ApplicationFiled: November 29, 2011Publication date: June 7, 2012Inventors: Yong QIU, Deqiang Zhang, Yang Li, Guohui Zhang, Kongwu Wu, Lian Duan, Yudi Gao
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Patent number: 7923924Abstract: 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: GrantFiled: April 2, 2008Date of Patent: April 12, 2011Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd., Kunshan Visionox Technology Co., Ltd.Inventors: Yong Qiu, Shenfu Zhang, Guohui Zhang, Kongwu Wu, Yudi Gao
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Patent number: 7786471Abstract: 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: GrantFiled: November 30, 2005Date of Patent: August 31, 2010Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Liduo Wang
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Patent number: 7501755Abstract: 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: GrantFiled: July 28, 2005Date of Patent: March 10, 2009Assignees: Tsinghua University, Beijing Visionox Technology Co., Ltd.Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Wang Liduo
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Publication number: 20090045737Abstract: 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: ApplicationFiled: August 15, 2008Publication date: February 19, 2009Inventors: Yong QIU, Deqiang ZHANG, Yang LI, Guohui ZHANG, Kongwu WU, Lian DUAN, Yudi GAO
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Publication number: 20090001878Abstract: 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: ApplicationFiled: April 3, 2008Publication date: January 1, 2009Applicants: Tsinghua University, Beijing Visionox Technology Co., Ltd., Kunshan Visionox Technology Co., Ltd.Inventors: Yong Qiu, Jing Xie, Yudi Gao, Lian Duan
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Publication number: 20080246393Abstract: 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: ApplicationFiled: April 2, 2008Publication date: October 9, 2008Applicants: TSINGHUA UNIVERSITY, BEIJING VISIONOX TECHNOLOGY CO., LTD., KUNSHAN VISIONOX TECHNOLOGY CO., LTD.Inventors: Yong Qiu, Shenfu Zhang, Guohui Zhang, Kongwu Wu, Yudi Gao
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Publication number: 20060232192Abstract: 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: ApplicationFiled: November 30, 2005Publication date: October 19, 2006Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Liduo Wang
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Publication number: 20060152145Abstract: 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: ApplicationFiled: July 28, 2005Publication date: July 13, 2006Inventors: Yong Qiu, Yudi Gao, Deqiang Zhang, Wang Liduo
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Patent number: 6806491Abstract: 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: GrantFiled: January 24, 2003Date of Patent: October 19, 2004Assignee: Tsinghua UniversityInventors: Yong Qiu, Yudi Gao, Peng Wei, Deqiang Zhang, Liduo Wang
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Publication number: 20030197465Abstract: 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: ApplicationFiled: January 24, 2003Publication date: October 23, 2003Inventors: Yong Qiu, Yudi Gao, Peng Wei, Deqiang Zhang, Liduo Wang