Patents by Inventor Feifei Li
Feifei 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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Publication number: 20260193967Abstract: The present invention belongs to the field of oil and gas field development technology, and relates to a method for determining gas well drainage and gas production processes. Aiming at problems such as traditional methods relying on empirical judgment, lack of quantitative analysis, and difficulty in accurately evaluating process applicability and effectiveness, the present invention collects gas well downhole tubing and production data, calculates parameters such as gas phase and liquid phase superficial velocities and densities; plots inflow/outflow dynamic curves to determine whether the gas well can produce stably. The method provides for performance analysis for optimized tubing, wellhead pressurization, gas lift, foam drainage, and plunger processes respectively, and determines the lower limit of applicability for each process.Type: ApplicationFiled: February 27, 2026Publication date: July 9, 2026Applicant: Southwest Petroleum UniversityInventors: Chengcheng LUO, Mingjing XU, Yonghui LIU, Boning ZHANG, Pengbo WU, Jinhong JIANG, Feifei LI, Hongliang LONG
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Publication number: 20260186359Abstract: The present disclosure discloses an array substrate and a display device. The array substrate includes a base substrate (13) and a first conductive layer, a second conductive layer, a third conductive layer, and a fourth conductive layer which are sequentially stacked on a side of the base substrate (13). The fourth conductive layer includes a common electrode (21), a material of the fourth conductive layer is a transparent conductive oxide material, a material of the third conductive layer is a metal conductive material, and at least a portion of a surface of the third conductive layer away from the base substrate (13) is in contact with at least a portion of a surface of the fourth conductive layer close to the base substrate (13).Type: ApplicationFiled: September 28, 2023Publication date: July 2, 2026Inventors: Hehe HU, Nianqi YAO, Kun ZHAO, Hui GUO, Ce NING, Zhengliang LI, Jiayu HE, Fengjuan LIU, Wei LIU, Feifei LI, Guangcai YUAN
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Publication number: 20260190396Abstract: A thin film transistor includes a first electrode, a second electrode, an active layer, and a gate electrode disposed on a base substrate. The first electrode is located on a side of the active layer close to the base substrate, and a first insulation layer is disposed between the first electrode and the active layer, and is provided with a first via. The active layer is electrically connected to the first electrode through the first via. A second insulation layer is disposed between the gate electrode and the active layer. An orthographic projection of the gate electrode is overlapped, at least partially, with an orthographic projection of the first via, on the base substrate, a surface of a side of the gate electrode close to the base substrate is a first surface, a surface of a side of the gate electrode away from the base substrate is a second surface.Type: ApplicationFiled: April 13, 2023Publication date: July 2, 2026Inventors: Hehe HU, Ce NING, Lizhong WANG, Dongfang WANG, Rui HUANG, Pengfei GU, Chaolu WANG, Fengjuan LIU, Zhengliang LI, Jiayu HE, Jie HUANG, Nianqi YAO, Kun ZHAO, Feifei LI
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Patent number: 12672314Abstract: The present disclosure provides a metal oxide thin film transistor, a semiconductor device and a display device, belongs to the field of display technology, and can solve a problem that current metal oxide thin film transistors have a poor stability. The metal oxide thin film transistor of the present disclosure includes a substrate and a first metal oxide semiconductor layer on the substrate; a material of the first metal oxide semiconductor layer includes a metal oxide doped with a first metal element, an electronegativity difference value between the first metal element and an oxygen element is greater than or equal to an electronegativity difference value between a metal element in the metal oxide and the oxygen element.Type: GrantFiled: March 30, 2022Date of Patent: June 30, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiayu He, Fangqing Wen, Ce Ning, Hehe Hu, Nianqi Yao, Kun Zhao, Zhengliang Li, Jie Huang, Feifei Li, Yan Qu, Liping Lei
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Patent number: 12670267Abstract: A ciphertext hybrid operation method and apparatus are disclosed. The method comprises: receiving a target function signature and a corresponding operand set, the operand set comprising ciphertext operands corresponding to at least two preset ciphertext types; determining a target ciphertext type corresponding to the at least two preset ciphertext types, wherein the target ciphertext type is simultaneously located in paths formed between each of the at least two preset ciphertext types and the highest-level preset ciphertext type; and in a case where the target ciphertext type supports an operation function specified by the target function signature, decrypting all the ciphertext operands in the operand set, converting the decrypted ciphertext operands to use the target ciphertext type for representation, and performing operation on the converted ciphertext operands according to the operation function specified by the target function signature.Type: GrantFiled: March 2, 2023Date of Patent: June 30, 2026Assignee: Cloud Intelligence Assets Holding (Singapore) Private LimitedInventors: Yiran Li, Sheng Wang, Feifei Li, Chengjin Tian, Huorong Li
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Patent number: 12666653Abstract: There is provided a metal oxide thin film transistor, including: a substrate and a metal oxide semiconductor layer on the substrate; a gate and a gate insulating layer between the substrate and the metal oxide semiconductor layer; the gate insulating layer includes a first silicon nitride layer, a second silicon nitride layer and a first silicon oxide layer which are stacked; the first silicon oxide layer is in contact with the metal oxide semiconductor layer, and two surfaces of the second silicon nitride layer are in contact with the first silicon nitride layer and the first silicon oxide layer, respectively; a content of hydrogen atoms of at least a partial region of the second silicon nitride layer is less than 30% of a content of hydrogen atoms of at least a partial region of the first silicon nitride layer. An array substrate and a display device are further provided.Type: GrantFiled: March 30, 2022Date of Patent: June 23, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiayu He, Yan Qu, Liping Lei, Ce Ning, Zhengliang Li, Hehe Hu, Jie Huang, Nianqi Yao, Kun Zhao, Feifei Li
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Publication number: 20260169325Abstract: The present disclosure provides a display substrate and a manufacturing method thereof. The display substrate includes: a base substrate; a plurality of first light shielding members arranged on the base substrate and extending in a first direction; a plurality of light filtering units and a plurality of second light shielding members arranged at a side of the first light shielding member away from the base substrate, the plurality of light filtering units being arranged at intervals, the second light shielding member being filled in a gap between adjacent light filtering units, the second light shielding member extending in a second direction intersecting the first direction; a planarization layer arranged at a side of the plurality of light filtering units and the plurality of second light shielding members away from the base substrate; and a spacer arranged at a side of the planarization layer away from the base substrate.Type: ApplicationFiled: September 22, 2023Publication date: June 18, 2026Applicants: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yong Yu, Chuanxiang Xu, Shi Shu, Feifei Li, Shaohui Li, Xiang Li, Yang Yue, Xinhua Liu, Jiahui Han, Pengxia Liang, Shaopeng Yang
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Patent number: 12660288Abstract: The present disclosure provides a TFT, a manufacturing method and a display substrate, and it relates to the field of TFT technology. The TFT includes: a base substrate; a gate electrode arranged on the base substrate; an active layer arranged at a side of the gate electrode away from the base substrate, an orthogonal projection of the active layer onto the base substrate overlapping with an orthogonal projection of the gate electrode onto the base substrate; and a source electrode and a drain electrode arranged at a side of the active layer away from the base substrate and coupled to the active layer. A resistance between the gate electrode and the drain electrode is greater than a resistance between the gate electrode and the source electrode. According to the present disclosure, it is able to increase a withstand voltage range of the TFT.Type: GrantFiled: December 27, 2021Date of Patent: June 16, 2026Assignee: BOE Technology Group Co., Ltd.Inventors: Hehe Hu, Dongfang Wang, Fengjuan Liu, Ce Ning, Zhengliang Li, Jiayu He, Yan Qu, Kun Zhao, Jie Huang, Liping Lei, Yunsik Im, Shunhang Zhang, Nianqi Yao, Feifei Li
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Patent number: 12649154Abstract: Provided is a micro-nano fluidic substrate, a chip, a preparation method, and a system. The micro-nano fluidic substrate includes: a base; an electrode layer located on the base, the electrode layer includes a first electrode, a second electrode, and a control electrode; and a film layer located on the electrode layer and far away from the base, the film layer includes a groove layer, a nano-channel and a micro-channel, the groove layer includes a first groove, the nano-channel is located in the first groove, an orthographic projection of the nano-channel on the base at least partially coincides with an orthographic projection of the control electrode on the base, and the micro-channel is in communication with the nano-channel, the micro-channel includes a first micro-channel and a second micro-channel, and the first micro-channel is in communication with the first electrode, the second micro-channel is in communication with the second electrode.Type: GrantFiled: December 31, 2021Date of Patent: June 9, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Feifei Li, Bolin Fan, Ce Ning, Zhengliang Li, Hehe Hu, Nianqi Yao, Jiayu He, Jie Huang, Kun Zhao
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Publication number: 20260150451Abstract: A functional backplane includes a wiring board, an intermetallic compound layer and a conductive connection layer. The wiring board includes a substrate, conductive pads and a plurality of protective layer groups. The conductive pads are disposed on the substrate and configured to transmit a driving signal. The plurality of protective layer groups are stacked on a side of the conductive pads away from the substrate. A protective layer group in the plurality of protective layer groups includes an oxidation protective layer, where a material of the oxidation protective layer includes a nickel-based alloy. In a direction perpendicular to the substrate and directed from the substrate to the protective layer group, the oxidation protective layer, the intermetallic compound layer and the conductive connection layer are stacked in sequence.Type: ApplicationFiled: January 21, 2026Publication date: May 28, 2026Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiayu HE, Yan QU, Ce NING, Zhengliang LI, Hehe HU, Jie HUANG, Nianqi YAO, Kun ZHAO, Feifei LI, Qi QI
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Publication number: 20260143588Abstract: A wiring board includes a base substrate and first connection pads disposed on the base substrate. The first connection pads each include electrical connection layer(s); each electrical connection layer includes a main material layer and protective layer(s) disposed on a side of the main material layer away from the base substrate; the protective layer(s) include a first reference protective layer, which is a protective layer farthest away from the base substrate in the protective layer(s); and a material of the main material layer includes copper. The electrical connection layer(s) include a first electrical connection layer, which is an electrical connection layer farthest away from the base substrate in the electrical connection layer(s); and in protective layer(s) in the first electrical connection layer, at least a material of the first reference protective layer is capable of forming a first intermetallic compound with a first solder.Type: ApplicationFiled: January 9, 2026Publication date: May 21, 2026Inventors: Nianqi YAO, Feifei LI, Ce NING, Zhengliang LI, Hehe HU, Jiayu HE, Jie HUANG, Kun ZHAO, Zhanfeng CAO, Ke WANG
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Publication number: 20260129771Abstract: A circuit board and a display device are disclosed. The circuit board includes: a base substrate including a device area; a plurality of first pads located on a side of the base substrate and in the device area, where a material of the first pads includes Cu; an oxidation protection layer located on a side away from the base substrate, of the first pads, where the plurality of first pads are bonded to a plurality of electronic components through the oxidation protection layer; a material of the oxidation protection layer includes CuaMgbXc, where X includes one or any combination of Al, Sn, Pb, Au, Ag, In, Zn, Bi, Ga, V, W, Y, Zr, Mo, Nb, Pt, Co or Sb.Type: ApplicationFiled: April 27, 2023Publication date: May 7, 2026Inventors: Kun ZHAO, Zhongpeng TIAN, Ce NING, Zhengliang LI, Nianqi YAO, Jiayu HE, Hehe HU, Jie HUANG, Feifei LI, Qi QI
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Patent number: 12614488Abstract: A driving circuit and a display device are provided. The driving circuit includes a pull-up node noise reduction circuit, an input circuit, a first output noise reduction circuit and a pull-down node noise reduction circuit; at least one transistor included in the driving circuit is a floating processing transistor including a floating electrode, a gate electrode, a first electrode and a second electrode; the floating electrode is arranged on the same layer with at least one of the first electrodes and the second electrode of the floating processing transistor; the floating electrode is arranged between the first electrode and the second electrode of the floating processing transistor, and the floating electrode has no electric signal input; a shortest distance between the first electrode of the floating processing transistor and the second electrode of the floating processing transistor is greater than an initial distance.Type: GrantFiled: April 27, 2023Date of Patent: April 28, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hehe Hu, Hui Guo, Jiayu He, Ce Ning, Zhengliang Li, Kun Zhao, Nianqi Yao, Jie Huang, Feifei Li, Fengjuan Liu
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Patent number: 12610636Abstract: A photoelectric sensor and a substrate are disclosed. The photoelectric sensor includes a photoelectric conversion layer, a first electrode and a second electrode, wherein the first electrode is arranged on a side of the photoelectric conversion layer, and the second electrode is arranged on a side of the photoelectric conversion layer and is spaced apart from the first electrode; wherein the first electrode and the second electrode are configured to drive the photoelectric conversion layer; and in a direction perpendicular to a surface of the photoelectric conversion layer, the first electrode and the second electrode are overlapped with the photoelectric conversion layer respectively, and the photoelectric conversion layer includes an oxide semiconductor material.Type: GrantFiled: December 2, 2021Date of Patent: April 21, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pengfei Gu, Jie Huang, Feifei Li, Yuhang Lu, Rui Huang, Fengjuan Liu
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Patent number: 12610675Abstract: A circuit board includes a substrate and a stress neutral layer disposed on a side of the substrate. The stress neutral layer includes one or more first metal layers and one or more second metal layers. The one or more second metal layers and the one or more first metal layers are stacked. At least one of the one or more first metal layers is made of a material for generating a tensile stress, and at least one of the one or more second metal layers is made of a material for generating a compressive stress.Type: GrantFiled: April 21, 2022Date of Patent: April 21, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Nianqi Yao, Zhongpeng Tian, Ce Ning, Zhengliang Li, Hehe Hu, Jie Huang, Jiayu He, Feifei Li, Kun Zhao, Yimin Chen
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Patent number: 12593473Abstract: The present disclosure provides a thin film transistor, a method for manufacturing the thin film transistor, an array substrate and a display panel. The thin film transistor includes: a substrate; and a gate electrode, a gate insulating layer, an active layer, a source electrode and a drain electrode on the substrate, wherein the active layer includes a first semiconductor layer and a second semiconductor layer sequentially arranged in a direction perpendicular to the substrate, the second semiconductor layer is arranged on a side of the first semiconductor layer away from the gate electrode; an absolute value of a difference between conduction band minimums of a first oxide material and a second oxide material is greater than 0.2 eV.Type: GrantFiled: November 29, 2021Date of Patent: March 31, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jie Huang, Ce Ning, Zhengliang Li, Hehe Hu, Jiayu He, Nianqi Yao, Kun Zhao, Feifei Li, Liping Lei
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Patent number: 12588284Abstract: Provided are a thin-film transistor and a manufacturing method thereof, and a display substrate, belonging to the technical field of thin-film transistors. The thin-film transistor includes: a base substrate; a gate electrode on the base substrate; an active layer on a side of the gate electrode away from the base substrate, an orthographic projection of the active layer onto the base substrate overlapping with an orthographic projection of the gate electrode onto the base substrate; and a first electrode and a second electrode on a side of the active layer away from the base substrate, the first electrode being one of a source electrode and a drain electrode, and the second electrode being the other of the source electrode and the drain electrode.Type: GrantFiled: December 27, 2021Date of Patent: March 24, 2026Assignee: BOE Technology Group Co., Ltd.Inventors: Hehe Hu, Yan Qu, Jiayu He, Kun Zhao, Jie Huang, Zhengliang Li, Ce Ning, Dongfang Wang, Fengjuan Liu, Nianqi Yao, Feifei Li, Shunhang Zhang, Yunsik Im, Liping Lei
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Patent number: 12581596Abstract: A wiring board includes a base substrate and first connection pads disposed on the base substrate. The first connection pads each include electrical connection layer(s); each electrical connection layer includes a main material layer and protective layer(s) disposed on a side of the main material layer away from the base substrate; the protective layer(s) include a first reference protective layer, which is a protective layer farthest away from the base substrate in the protective layer(s); and a material of the main material layer includes copper. The electrical connection layer(s) include a first electrical connection layer, which is an electrical connection layer farthest away from the base substrate in the electrical connection layer(s); and in protective layer(s) in the first electrical connection layer, at least a material of the first reference protective layer is capable of forming a first intermetallic compound with a first solder.Type: GrantFiled: December 31, 2021Date of Patent: March 17, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Nianqi Yao, Feifei Li, Ce Ning, Zhengliang Li, Hehe Hu, Jiayu He, Jie Huang, Kun Zhao, Zhanfeng Cao, Ke Wang
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Publication number: 20260072889Abstract: A database system and a column changing method for a database are provided, where a column attribute of a first column is changed to a change target value. Second columns are added into a physical data table and a physical GSI table, and into respective structure definitions of a logical data table and a logical GSI table, and are hidden from a user. The second columns in the logical data and GSI tables are respectively associated with the second columns in the physical data and GSI tables, and a value of the attribute of the second column in the logical table is the change target value. Configuration is performed in the respective structure definitions, to replace a first column with the second column in user access logic of the database. The first columns are deleted from the physical data and GSI tables, and from the respective structure definitions.Type: ApplicationFiled: September 25, 2023Publication date: March 12, 2026Inventors: Lingjing YOU, Mo CHEN, Gui HUANG, Feifei LI, Jianghang LOU
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Patent number: 12563875Abstract: A wiring board includes a substrate, conductive pads and at least one protective layer group. The conductive pads are disposed on the substrate. The at least one protective layer group is disposed on a side of the conductive pads away from the substrate; a protective layer group includes an oxidation protective layer and a palladium alloy layer that are stacked, and the oxidation protective layer is closer to the substrate than the palladium alloy layer. A material of the oxidation protective layer includes a nickel-based alloy.Type: GrantFiled: December 29, 2021Date of Patent: February 24, 2026Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiayu He, Yan Qu, Ce Ning, Zhengliang Li, Hehe Hu, Jie Huang, Nianqi Yao, Kun Zhao, Feifei Li, Qi Qi