Patents by Inventor Limin Sun
Limin Sun 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: 11971166Abstract: Provided are a quantum dot display panel, a preparation method, and a display device. The quantum dot display panel includes a backlight module, a quantum dot color filter structure, a first reflecting layer and a second reflecting layer. The quantum dot color filter structure is positioned on a light exit side of the backlight module. The quantum dot color filter structure includes at least a red quantum dot color filter unit, a green quantum dot color filter unit and a composite quantum dot color filter unit. The first reflecting layer is arranged on a side of the quantum dot color filter structure facing away from the backlight module. The first reflecting layer covers the red quantum dot color filter unit and the green quantum dot color filter unit. The second reflecting layer is arranged on a side of the backlight module facing away from the quantum dot color filter structure.Type: GrantFiled: March 23, 2021Date of Patent: April 30, 2024Assignee: SHENZHEN PLANCK INNOVATION TECHNOLOGY CO., LTDInventors: Danpeng Gao, Zhikuan Zhang, Limin Yang, Xiaowei Sun
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Patent number: 11942053Abstract: Disclosed are a display panel and a driving method therefor, and a display device. Two adjacent rows of sub-pixels are taken as a row group, and the row group is provided with a first sub row group and a second sub row group that are arranged in a column direction; a gate electrode of a first transistor in the first sub row group is electrically connected to a first gate line; a gate electrode of a second transistor in the second sub row group is electrically connected to a second gate line; two adjacent sub-pixels in the column direction share one third transistor, and a gate electrode of the third transistor in the row group is electrically connected to a third gate line; and the first transistor and the second transistor in one column of sub-pixels are electrically connected to a data line by means of the shared third transistor.Type: GrantFiled: February 20, 2020Date of Patent: March 26, 2024Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xianglei Qin, Jian Lin, Yong Zhang, Limin Zhang, Zepeng Sun, Zhichao Yang, Liangzhen Tang, Zhilong Duan, Honggui Jin, Yashuai An, Lingfang Nie, Jian Wang, Li Tian, Jing Pang, Xuechao Song
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Patent number: 11927844Abstract: Provided is a display substrate. The display substrate includes: a base substrate including a display region and a non-display region surrounding the display region; a gate drive circuit disposed in the non-display region; a plurality of first signal lines disposed in the peripheral region and connected to the gate drive circuit; and a plurality of second signal lines disposed in the non-display region and connected to the gate drive circuit; wherein each of the first signal line and the second signal line is configured to supply a signal to the gate drive circuit, and a frequency of the signal supplied by the first signal line is lower than a frequency of the signal supplied by the second signal line.Type: GrantFiled: March 9, 2021Date of Patent: March 12, 2024Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Groups Co., Ltd.Inventors: Zepeng Sun, Yong Zhang, Xianglei Qin, Jian Wang, Yanchen Li, Jian Lin, Limin Zhang, Zhichao Yang, Liangzhen Tang, Zhilong Duan, Yashuai An, Lingfang Nie, Honggui Jin, Li Tian
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Publication number: 20240076279Abstract: The present application relates to a novel benzoazepine compound, comprising a pharmaceutically acceptable salt thereof. The present application also provides a pharmaceutical composition comprising the compound and a pharmaceutically acceptable salt thereof. The present application relates to use of the compound and the composition in the prevention or treatment of diseases related to arginine vasopressin V1a receptor, arginine vasopressin V1b receptor, arginine vasopressin V2 receptor, sympathetic nervous system or renin-angiotensin-aldosterone system. The present application also provides a method for preventing and/or treating arginine vasopressin-related diseases.Type: ApplicationFiled: December 17, 2021Publication date: March 7, 2024Applicants: XUZHOU MEDICAL UNIVERSITY, SHANGHAITECH UNIVERSITYInventors: Dong GUO, Xudong CAO, Wenzhong YAN, Jianjun CHENG, Ying SUN, Limin SU, Ying REN, Ruoqi WANG, Haoran ZHANG, Haoxing YUAN
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Patent number: 11808475Abstract: The invention discloses an air conditioner and an electric heating control method and a control device thereof. An electric heating module and an indoor fan are arranged in an indoor unit of the air conditioner, the electric heating module comprises an electric heating unit and an electric heating control circuit, and an auxiliary fan is further arranged in the indoor unit; the electric heating control method comprises the following steps that when an electric heating starting condition is met, and the electric heating unit and the auxiliary fan are operated; after the auxiliary fan operates, heat generated by the electric heating unit is blown out from an air outlet of the indoor unit. According to the electric heating control method, the normal start of electric heating can be ensured to the maximum degree, and the requirement for auxiliary heating by electric heating is met.Type: GrantFiled: September 19, 2019Date of Patent: November 7, 2023Assignees: QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD., HAIER SMART HOME CO., LTD.Inventors: Fengchun Wang, Limin Sun, Sue Liu
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Publication number: 20220349610Abstract: The invention discloses an air conditioner and an electric heating control method and a control device thereof. An electric heating module and an indoor fan are arranged in an indoor unit of the air conditioner, the electric heating module comprises an electric heating unit and an electric heating control circuit, and an auxiliary fan is further arranged in the indoor unit; the electric heating control method comprises the following steps that when an electric heating starting condition is met, and the electric heating unit and the auxiliary fan are operated; after the auxiliary fan operates, heat generated by the electric heating unit is blown out from an air outlet of the indoor unit. According to the electric heating control method, the normal start of electric heating can be ensured to the maximum degree, and the requirement for auxiliary heating by electric heating is met.Type: ApplicationFiled: September 19, 2019Publication date: November 3, 2022Inventors: FENGCHUN WANG, LIMIN SUN, SUE LIU
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Publication number: 20220267539Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300° C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.Type: ApplicationFiled: June 28, 2021Publication date: August 25, 2022Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang
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Patent number: 11084906Abstract: A class of solvent resistant, flexible copolyimide substrates having high optical transparency (>80% from 400 to 750 nm) that is retained after brief exposure to 300° C., near-zero birefringence (<0.001) and a maximum CTE of approximately 60 ppm/° C. is disclosed. The copolyimides are prepared from alicyclic dianhydrides, aromatic cardo diamines, and aromatic diamines containing free carboxyl groups. The substrates are manufactured from solutions of the copolyimides containing multifunctional epoxides in the form of single layer films, multilayer laminates and glass fiber reinforced composite films. The substrates can be used in the construction of flexible optical displays, and other microelectronic and photovoltaic devices that require their unique combination of properties.Type: GrantFiled: August 17, 2012Date of Patent: August 10, 2021Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Jiaokai Jing, Frank W. Harris
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Patent number: 11059742Abstract: A flexible substrate with a high optical transparency (>80% from 400 to 750 nm) that is retained after exposure to 300° C., near-zero birefringence (<±0.001), and a relatively low CTE (<60 ppm/° C.) is disclosed. The substrate may be manufactured as single layer, polyimide films and as a multi-layer laminate comprising a polyimide layer and a thin glass layer. The polyimides may include alicyclic dianhydrides and aromatic, cardo diamines. The films formed of the polyimides can serve as flexible substrates for optical displays and other applications that require their unique combination of properties.Type: GrantFiled: May 10, 2013Date of Patent: July 13, 2021Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Jiaokai Jing, Frank W. Harris, Zhikuan Lu, Xiaoliang Zheng
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Patent number: 11046825Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300 C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.Type: GrantFiled: October 3, 2016Date of Patent: June 29, 2021Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang
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Publication number: 20200399469Abstract: Films with optical transmittance of >80% between 400 and 750 nm and with coefficient of thermal expansion less than 20 ppm/° C. are prepared from aromatic polyamides that are soluble in polar organic solvents yet have glass transition temperatures>300° C. The films are cross-linked in the solid state by heating at elevated temperatures for short periods of time in the presence of multifunctional epoxides. Surprisingly, the optical and thermal properties of the films do not change significantly during the curing process. The temperature required for the crosslinking process to take place can be reduced by the presence of a few free, pendant carboxyl groups along the polyamide backbones. The films are useful as flexible substrates for electronic displays and photovoltaic devices.Type: ApplicationFiled: August 31, 2020Publication date: December 24, 2020Applicant: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Frank W. Harris, Jiaokai Jing
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Patent number: 10759940Abstract: Films with optical transmittance of >80% between 400 and 750 nm and with coefficient of thermal expansion less than 20 ppm/° C. are prepared from aromatic polyamides that are soluble in polar organic solvents yet have glass transition temperatures >300° C. The films are cross-linked in the solid state by heating at elevated temperatures for short periods of time in the presence of multifunctional epoxides. Surprisingly, the optical and thermal properties of the films do not change significantly during the curing process. The temperature required for the crosslinking process to take place can be reduced by the presence of a few free, pendant carboxyl groups along the polyamide backbones. The films are useful as flexible substrates for electronic displays and photovoltaic devices.Type: GrantFiled: November 22, 2017Date of Patent: September 1, 2020Assignee: Akon Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Frank W. Harris, Jiaokai Jing
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Patent number: 9963548Abstract: Solvent resistant, transparent films prepared from solutions of aromatic polyamides and multi-functional carboxylic acids in polar aprotic solvents are described herein. Solvent resistance is achieved by heating the films for a short time above 300° C. near the polyamide Tg. The films have CTEs less than 40 ppm/° C. and are optically clear displaying transmittance above 75% between 400 and 750 nm. The films are useful as substrates for flexible electronic devices.Type: GrantFiled: April 23, 2013Date of Patent: May 8, 2018Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Frank W. Harris, Jiaokai Jing
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Publication number: 20180094135Abstract: Films with optical transmittance of >80% between 400 and 750 nm and with coefficient of thermal expansion less than 20 ppm/° C. are prepared from aromatic polyamides that are soluble in polar organic solvents yet have glass transition temperatures >300° C. The films are cross-linked in the solid state by heating at elevated temperatures for short periods of time in the presence of multifunctional epoxides. Surprisingly, the optical and thermal properties of the films do not change significantly during the curing process. The temperature required for the crosslinking process to take place can be reduced by the presence of a few free, pendant carboxyl groups along the polyamide backbones. The films are useful as flexible substrates for electronic displays and photovoltaic devices.Type: ApplicationFiled: November 22, 2017Publication date: April 5, 2018Applicant: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Frank W. Harris, Jiaokai Jing
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Patent number: 9873763Abstract: The present disclosure, in one aspect, relates to a polyamide solution including an aromatic polyamide and a solvent, wherein the aromatic polyamide includes at least two types of constitutional units, and a change rate of coefficient of thermal expansion (CTE) of a cast film produced by casting the polyamide solution on a glass plate and CTE of the same cast film after being subjected to a heat treatment at temperature of 200° C. to 450° C. (=CTE after heat treatment/CTE before heat treatment) is 1.3 or less.Type: GrantFiled: October 1, 2014Date of Patent: January 23, 2018Assignees: AKRON POLYMER SYSTEMS, INC., SUMITOMO BAKELITE CO., LTD.Inventors: Limin Sun, Dong Zhang, Jiaokai Jing, Frank W. Harris, Hideo Umeda, Ritsuya Kawasaki, Toshihiko Katayama, Yusuke Inoue, Jun Okada, Mizuho Inoue, Manabu Naito
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Patent number: 9856376Abstract: Films with optical transmittance of >80% between 400 and 750 nm and with coefficient of thermal expansion less than 20 ppm/° C. are prepared from aromatic polyamides that are soluble in polar organic solvents yet have glass transition temperatures >300° C. The films are crosslinked in the solid state by heating at elevated temperatures for short periods of time in the presence of multifunctional epoxides. Surprisingly, the optical and thermal properties of the films do not change significantly during the curing process. The temperature required for the crosslinking process to take place can be reduced by the presence of a few free, pendant carboxyl groups along the polyamide backbones. The films are useful as flexible substrates for electronic displays and photovoltaic devices.Type: GrantFiled: June 20, 2012Date of Patent: January 2, 2018Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Dong Zhang, Frank W. Harris, Jiaokai Jing
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Publication number: 20170298198Abstract: A process for manufacturing a display device, an optical device or an illuminating device includes casting a polyamide solution onto a base at temperature below 200° C. to obtain a film, heating the film on the base at temperature sufficient to make the film solvent resistant and obtain a polyamide film, forming on a surface of the polyamide film one of a display element, an optical element and an illumination element to form a display device, an optical device or an illumination device, and de-bonding the base from the display device, the optical device or the illuminating device.Type: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Applicants: SUMITOMO BAKELITE CO., LTD., AKRON POLYMER SYSTEMS, INC.Inventors: FRANK W. HARRIS, DONG ZHANG, LIMIN SUN, JIAOKAI JING, HIDEO UMEDA, JUN OKADA
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Patent number: 9597668Abstract: A selective nickel-based hydrogenation catalyst and the preparation thereof, characterized in that: provided that the catalyst is weighed 100%, it comprises nickel oxide 14-20% as active component, lanthanum oxide and/or cerium oxide 2-8%, and VIB element oxide 1-8% as aids, 2-8% silica, 1-8% alkaline earth metal oxides, and alumina as the balance. The catalyst specific surface area is 60-150 m2/g, and the pore volume is 0.4-0.6 ml/g. The catalyst has good hydrogenation performance, especially impurity and colloid resistance and hydrogenation stability. The catalyst can be applied to the diolefin selective hydrogenation of medium or low-distillate oil, especially of the full-distillates pyrolysis gasoline.Type: GrantFiled: August 11, 2014Date of Patent: March 21, 2017Assignee: PETROCHINA COMPANY LIMITEDInventors: Shunqin Liang, Ying Qian, Longgang Lv, Limin Sun, Yundi Zheng, Tinghai Wang, Jie Wu, Fengxia Cao
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Publication number: 20170022336Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300 C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.Type: ApplicationFiled: October 3, 2016Publication date: January 26, 2017Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang
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Patent number: 9457496Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300 C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.Type: GrantFiled: June 29, 2011Date of Patent: October 4, 2016Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang