Patents by Inventor Chunming Cui
Chunming Cui 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: 10956700Abstract: The disclosure relates to a display device including: an organic light-emitting diode display panel, a fingerprint recognition layer located below the organic light-emitting diode display panel, and a light filtering layer located between the organic light-emitting diode display panel and the fingerprint recognition layer, where the light filtering layer is configured to filter out light rays with an incidence angle greater than a filter angle among light rays carrying fingerprint line information, and to transmit light rays with an incidence angle smaller than or equal to the filter angle, where the incidence angle is the angle between the light rays carrying fingerprint line information, and the direction perpendicular to the fingerprint recognition layer.Type: GrantFiled: July 23, 2019Date of Patent: March 23, 2021Assignees: Beijing BOE Display Tchnology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ying Zhao, Shipei Li, Qingping Yin, Tao Li, Huili Wu, Chunming Cui, Zihao Zhao, Jie Jin, Weimeng Zhang
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Publication number: 20200210672Abstract: The disclosure relates to a display device including: an organic light-emitting diode display panel, a fingerprint recognition layer located below the organic light-emitting diode display panel, and a light filtering layer located between the organic light-emitting diode display panel and the fingerprint recognition layer, where the light filtering layer is configured to filter out light rays with an incidence angle greater than a filter angle among light rays carrying fingerprint line information, and to transmit light rays with an incidence angle smaller than or equal to the filter angle, where the incidence angle is the angle between the light rays carrying fingerprint line information, and the direction perpendicular to the fingerprint recognition layer.Type: ApplicationFiled: July 23, 2019Publication date: July 2, 2020Inventors: Ying ZHAO, Shipei LI, Qingping YIN, Tao LI, Huili WU, Chunming CUI, Zihao ZHAO, Jie JIN, Weimeng ZHANG
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Patent number: 8716417Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.Type: GrantFiled: June 3, 2011Date of Patent: May 6, 2014Assignee: PetroChina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
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Patent number: 8470941Abstract: A catalyst for homopolymerizing and copolymerizing propylene and its preparation and use. The catalyst component includes titanium compound containing at least one Ti-halogen bond and at least two kinds of electron donor compounds A and B supported on MgCl2.nROH adduct, wherein the electron donor compound A is a compound of formula (I), the electron donor compound B is ester or ether compound; the molar ratio between compound A and compound B is 0.1-5; the molar ratio between the total amounts of the two kinds of electron donors and MgCl2.nROH is 0.01-1, based on the amount of MgCl2.nROH; and the molar ration between the titanium compound containing Ti-halogen bond and MgCl2.nROH is 1-200. The catalyst has high activity, high stereospecificity and good copolymerization performance. In addition, the morphology of the polymer obtained therefrom is good.Type: GrantFiled: December 2, 2008Date of Patent: June 25, 2013Assignee: PetroChina Company LimitedInventors: Jianjun Yi, Baozuo Yin, Chunming Cui, Zhifei Li, Liang Cui, Huashu Li, Weihuan Huang, Jianying Zhang, Li Wang
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Patent number: 8404789Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The catalyst component comprises (1) an active magnesium halide, (2) a titanium compound containing at least one Ti-halide bond supported thereon, and (3) an electron donor selected from the group consisting of one or more sulfonyl-containing compounds having the following formula. There are two methods for preparing such solid catalyst component: I) treating the active magnesium halide (1) particles with alkylaluminum, subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times; II) adding spherical magnesium chloride alcoholate particles to the solution of titanium compound (2), subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times. The catalyst system comprises such solid catalyst component, a co-catalyst (alkylaluminum compound) and an external electron donor.Type: GrantFiled: May 15, 2008Date of Patent: March 26, 2013Assignee: Petrochina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Baozuo Yin, Jianying Zhang, Xiaomei Lang, Linmei Wu
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Publication number: 20130072647Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.Type: ApplicationFiled: June 3, 2011Publication date: March 21, 2013Applicant: PetroChina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
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Publication number: 20110207900Abstract: A catalyst for homopolymerizing and copolymerizing propylene and its preparation and use. The catalyst component includes titanium compound containing at least one Ti-halogen bond and at least two kinds of electron donor compounds A and B supported on MgCl2.nROH adduct, wherein the electron donor compound A is a compound of formula (I), the electron donor compound B is ester or ether compound; the molar ratio between compound A and compound B is 0.1-5; the molar ratio between the total amounts of the two kinds of electron donors and MgCl2.nROH is 0.01-1, based on the amount of MgCl2.nROH; and the molar ration between the titanium compound containing Ti-halogen bond and MgCl2.nROH is 1-200. The catalyst has high activity, high stereospecificity and good copolymerization performance. In addition, the morphology of the polymer obtained therefrom is good.Type: ApplicationFiled: December 2, 2008Publication date: August 25, 2011Inventors: Jianjun Yi, Baozuo Yin, Chunming Cui, Zhifei Li, Liang Cui, Huashu Li, Weihuan Huang, Jianying Zhang, Li Wang
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Publication number: 20100184930Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The catalyst component comprises (1) an active magnesium halide, (2) a titanium compound containing at least one Ti-halide bond supported thereon, and (3) an electron donor selected from the group consisting of one or more sulfonyl-containing compounds having the following formula. There are two methods for preparing such solid catalyst component: I) treating the active magnesium halide (1) particles with alkylaluminum, subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times; II) adding spherical magnesium chloride alcoholate particles to the solution of titanium compound (2), subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times. The catalyst system comprises such solid catalyst component, a co-catalyst (alkylaluminum compound) and an external electron donor.Type: ApplicationFiled: May 15, 2008Publication date: July 22, 2010Applicant: Petrochina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Baozuo Yin, Jianying Zhang, Xiaomei Lang, Linmei Wu