Patents by Inventor Feifan Li
Feifan Li 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: 12107523Abstract: Disclosed is a method for searching a MTPA curve of a vehicle permanent magnet synchronous motor based on a DC power, which includes a current closed-loop adjuster, a current command generator, a current command angle generator, an active power calculator, an active power storage and comparison processor and a current given vector corrector. According to the present disclosure, the tedious manual calibration is relieved, the optimal angle is automatically searched, and the production efficiency is improved; according to the present disclosure, the step size can be arbitrarily set according to the calibration requirements, so as to achieve a higher calibration accuracy.Type: GrantFiled: June 14, 2022Date of Patent: October 1, 2024Assignee: Zhejiang University City CollegeInventors: Jing Li, Feifan Ji, Yuwei Chen
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Publication number: 20240305229Abstract: A method and a system for simultaneously realizing current sampling gain and delay compensation. A dummy load is formed from three-phase inductors with star connection to replace a motor load, and a dummy rotation angle is generated by software. In a calibration mode, a standard current sampling element is used for current sampling, and the related calibration parameters in the stable state are stored. Then, in a regulation mode, other current sampling elements produced in batches are used for current sampling, and the delay compensation coefficient and gain compensation coefficient of the sampled current are generated through two closed-loop voltage feedbacks respectively, and the two compensation processes are decoupled from each other and do not affect each other. The present disclosure effectively ensures the accuracy and consistency of current sampling.Type: ApplicationFiled: January 22, 2024Publication date: September 12, 2024Inventors: Feifan JI, Yanjun LI, Qingyu SONG
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Publication number: 20240281037Abstract: A flexible support plate is configured to support a display panel, and is provided with a bendable region. The bendable region has at least one boundary line extending in a first direction, and the boundary line is part of a side of the flexible support plate. A plurality of hollows are arranged at intervals in the bendable region, the plurality of hollows are divided into a plurality of hollow groups arranged in the first direction, and each hollow group includes at least one hollow. For any boundary line, any one of the plurality of hollow groups has one boundary point, the boundary point is disposed on a contour line of a hollow in the hollow group to which the boundary point belongs, and the boundary point has a smallest distance from a corresponding boundary line in the contour line to which the boundary point belongs.Type: ApplicationFiled: April 30, 2024Publication date: August 22, 2024Inventors: Hufei Yang, Liang Gao, Ajuan Du, Feifan Li, Hao Sun, Xiaoxia Huang, Bin Wang, Yongle Wang, Enjian Yang, Shuang Zhang, Bowen Xiao
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Publication number: 20240284596Abstract: A circuit board structure and a display device, the circuit board structure includes a first circuit board, a second circuit board, a filling portion and an electromagnetic shield layer. The second circuit board has a thickness greater than that of the first circuit board. At least one corner portion forms at a joint of the first circuit board and the second circuit board. A connection line forms at a joint of the second circuit board and the first circuit board. The connection line is located at the corner portion. The filling portion fills the corner portion, an extending direction of the filling portion is identical to an extending direction of the corner portion. The extending direction is identical to a direction of the connection line. A thickness of a cross section of the filling portion perpendicular to the extending direction increases as a distance from the second circuit board decreases.Type: ApplicationFiled: September 27, 2021Publication date: August 22, 2024Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Liang GAO, Ajuan DU, Bin WANG, Xuerui GONG, Enjian YANG, Hufei YANG, Hao SUN, Yang WANG, Feifan LI, Xiaoxia HUANG, Yongle WANG, Yiqian WU, Yilun ZENG, Guodong ZENG, Fengping WU
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Patent number: 12059728Abstract: A deformation-driven solid-phase extrusion device and a one-step alloy bar preparation method by using the same are provided. The device includes a stir tool, an extrusion container and an ejector rod. The stir tool has an integral structure composed of an upper mounting part and a lower working part and having a hollow channel. The lower working part is disposed in a groove of the extrusion container, and the ejector rod is disposed in the hollow channel of the stir tool. The method includes adding alloy powder to the extrusion container, enabling the stir tool to exert a pressure and revolve at a high speed to cause large plastic deformation of the powder and generate heat by friction and deform among powder and the friction working surface of the working part, sintering the alloy powder and extruding the same through the hollow channel of the stir tool.Type: GrantFiled: August 20, 2021Date of Patent: August 13, 2024Assignee: Harbin Institute of TechnologyInventors: Yongxian Huang, Yuming Xie, Xiangchen Meng, Feifan Wang, Junchen Li, Long Wan
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Publication number: 20240213181Abstract: Provided is a display panel, including: a substrate, the substrate comprising a display area and a non-display area, the non-display area comprising a bonding area located at a side of the display area, the bonding area comprising a plurality of bonding pads, wherein the display panel further comprises a first insulating protective film layer, a detection pad is provided between at least two of the plurality of bonding pads, and the first insulating protective film layer is located at a side of the detection pad away from the substrate. A display device is further provided.Type: ApplicationFiled: November 15, 2021Publication date: June 27, 2024Inventors: Hao SUN, Xiaoxia HUANG, Enjian YANG, Liang GAO, Shuang ZHANG, Feifan LI, Bin WANG, Hufei YANG, Ajuan DU, Yongle WANG
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Patent number: 12013729Abstract: A flexible support plate is configured to support a display panel, and is provided with a bendable region. The bendable region has at least one boundary line extending in a first direction, and the boundary line is part of a side of the flexible support plate. A plurality of hollows are arranged at intervals in the bendable region, the plurality of hollows are divided into a plurality of hollow groups arranged in the first direction, and each hollow group includes at least one hollow. For any boundary line, any one of the plurality of hollow groups has one boundary point, the boundary point is disposed on a contour line of a hollow in the hollow group to which the boundary point belongs, and the boundary point has a smallest distance from a corresponding boundary line in the contour line to which the boundary point belongs.Type: GrantFiled: January 29, 2021Date of Patent: June 18, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hufei Yang, Liang Gao, Ajuan Du, Feifan Li, Hao Sun, Xiaoxia Huang, Bin Wang, Yongle Wang, Enjian Yang, Shuang Zhang, Bowen Xiao
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Publication number: 20240064945Abstract: A displaying module includes a transparent cover plate, a display panel and a heat dissipating film layer; the transparent cover plate covers a first surface of the display panel, an area of the display panel is less than an area of the transparent cover plate, and the first surface refers to a surface of the display panel where a light ray exits; and the heat dissipating film layer covers a second surface of the display panel, and at least part of an edge position of the heat dissipating film layer contacts an inner surface of the transparent cover plate, wherein the second surface refers to a surface of the display panel that is opposite to the first surface, the inner surface of the transparent cover plate refers to a surface of the transparent cover plate that contacts the display panel, and the heat dissipating film layer is electrically conductive.Type: ApplicationFiled: August 23, 2022Publication date: February 22, 2024Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ajuan Du, Liang Gao, Bin Wang, Yang Wang, Yongle Wang, Hao Sun, Enjian Yang, Feifan Li, Hufei Yang, Xiaoxia Huang, Yilun Zeng, Yiqian Wu, Guodong Zeng
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Publication number: 20230390301Abstract: Provided are a compound having the structure of formula (I) for inhibiting Wnt pathway activity, a pharmaceutical composition comprising the compound, and use of the compound in prevention and/or treatment of cancers, tumors, inflammatory diseases, autoimmune diseases, or immune-mediated diseases.Type: ApplicationFiled: October 27, 2021Publication date: December 7, 2023Applicant: ADLAI NORTYE BIOPHARMA CO., LTD.Inventors: Yufeng CHEN, Peng WU, Meng LV, Canfeng LIU, Han YANG, Kaixuan CHEN, Wanli CHENG, Feifan LI, Youping WANG, Keke CHEN, Pingping LU, Nanhai HE
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Publication number: 20230085742Abstract: A flexible support plate is configured to support a display panel, and is provided with a bendable region. The bendable region has at least one boundary line extending in a first direction, and the boundary line is part of a side of the flexible support plate. A plurality of hollows are arranged at intervals in the bendable region, the plurality of hollows are divided into a plurality of hollow groups arranged in the first direction, and each hollow group includes at least one hollow. For any boundary line, any one of the plurality of hollow groups has one boundary point, the boundary point is disposed on a contour line of a hollow in the hollow group to which the boundary point belongs, and the boundary point has a smallest distance from a corresponding boundary line in the contour line to which the boundary point belongs.Type: ApplicationFiled: January 29, 2021Publication date: March 23, 2023Inventors: Hufei Yang, Liang Gao, Ajuan Du, Feifan Li, Hao Sun, Xiaoxia Huang, Bin Wang, Yongle Wang, Enjian Yang, Shuang Zhang, Bowen Xiao
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Patent number: 11567604Abstract: A display module includes a display panel, a flexible circuit board, a driving control chip, a touch control chip and a protective structure. The flexible circuit board is bonded to the display panel. The driving control chip is located on the display panel or the flexible circuit board. The touch control chip is located on the flexible circuit board or the display panel. The protective structure covers the driving control chip and/or the touch control chip. And the protective structure includes a first insulating layer, a heat dissipation layer and an electromagnetic shielding layer that are sequentially disposed away from the display panel.Type: GrantFiled: October 20, 2021Date of Patent: January 31, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feifan Li, Ajuan Du, Liang Gao, Xiaoxia Huang, Hao Sun, Bin Wang, Dong Wang, Enjian Yang, Hufei Yang, Shuang Zhang
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Publication number: 20220376202Abstract: A heat dissipation film for a display module, and a preparation method of a display device. The heat dissipation film comprises a composite structure layer and a removable protective film disposed on the composite structure layer. The composite structure layer has a first side surface and a second side surface disposed opposite to each other, and is provided with a preconfigured hole passing through the first side surface and the second side surface. The first side surface of the composite structure layer adheres to a side of the display module facing away from a display side. The protective film is attached to the second side surface of the composite structure layer. The protective film is provided with a shielding region covering the preconfigured hole. The shielding region and the rest of the protective film can all be independently torn off from the composite structure layer.Type: ApplicationFiled: July 7, 2021Publication date: November 24, 2022Inventors: Enjian YANG, Hao SUN, Liang GAO, Ajuan DU, Xing PENG, Shuang ZHANG, Dong WANG, Bin WANG, Feifan LI, Hufei YANG, Xiaoxia HUANG
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Patent number: 11469211Abstract: A Chip-On-Film structure, a displaying base plate and a displaying device, wherein the Chip-On-Film structure includes a first substrate; a plurality of driving chips provided on one side of the first substrate, and a plurality of first leads that are connected to the plurality of driving chips; and the plurality of first leads are for binding a displaying base plate, and a quantity of the first leads is greater than or equal to a sum of quantities of channels of the plurality of driving chips.Type: GrantFiled: April 6, 2021Date of Patent: October 11, 2022Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Shuang Zhang, Weihong Wu, Feifan Li, Ajuan Du, Xiaoxia Huang, Liang Gao, Hufei Yang, Enjian Yang, Hao Sun, Bin Wang, Dong Wang
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Publication number: 20220121311Abstract: A display module includes a display panel, a flexible circuit board, a driving control chip, a touch control chip and a protective structure. The flexible circuit board is bonded to the display panel. The driving control chip is located on the display panel or the flexible circuit board. The touch control chip is located on the flexible circuit board or the display panel. The protective structure covers the driving control chip and/or the touch control chip. And the protective structure includes a first insulating layer, a heat dissipation layer and an electromagnetic shielding layer that are sequentially disposed away from the display panel.Type: ApplicationFiled: October 20, 2021Publication date: April 21, 2022Inventors: Feifan LI, Ajuan DU, Liang GAO, Xiaoxia HUANG, Hao SUN, Bin WANG, Dong WANG, Enjian YANG, Hufei YANG, Shuang ZHANG
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Publication number: 20220093563Abstract: A Chip-On-Film structure, a displaying base plate and a displaying device, wherein the Chip-On-Film structure includes a first substrate; a plurality of driving chips provided on one side of the first substrate, and a plurality of first leads that are connected to the plurality of driving chips; and the plurality of first leads are for binding a displaying base plate, and a quantity of the first leads is greater than or equal to a sum of quantities of channels of the plurality of driving chips.Type: ApplicationFiled: April 6, 2021Publication date: March 24, 2022Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Shuang Zhang, Weihong Wu, Feifan Li, Ajuan Du, Xiaoxia Huang, Liang Gao, Hufei Yang, Enjian Yang, Hao Sun, Bin Wang, Dong Wang