Patents by Inventor Liqiang Li
Liqiang 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: 20240192191Abstract: A method for evaluating an aging state of a silicone rubber composite insulator includes: step 1: collecting samples from the silicone rubber composite insulator, and subjecting samples in a surface layer and a center layer successively to hydrophobicity, flexing resistance, hardness, color, and absorbance tests; step 2: determining relevant data of the samples in a natural evolution process according to the tests in step 1; step 3: subjecting the samples to thermo-oxidative aging; and after the thermo-oxidative aging is completed, subjecting the samples to a hardness test of artificial accelerated evolution, and calculating position coordinates (F1, F2) of the samples in an aging space; and step 4: classifying the samples in advance and solving an aging state centroid of each classified population, calculating a minimum aging distance based on the position coordinates in step 3, and evaluating the aging state of the silicone rubber composite insulator.Type: ApplicationFiled: December 10, 2021Publication date: June 13, 2024Inventors: Boyan Jia, Jie Liu, Yanwei Xia, Xianhai Pang, Yuhao Zhao, Shilin Li, Liqiang Song, Xiangxia Liu
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Publication number: 20240173716Abstract: The present disclosure discloses a microfluidic chip, a system and a method for automatic separation and detection of circulating tumor cells. The microfluidic chip includes a density gradient centrifugation assembly, a cell capture assembly, and a reagent storage assembly. The density gradient centrifugation assembly is configured to carry out density gradient centrifugation on a whole blood sample to achieve separation and obtain a plasma layer, a monocyte layer, a Ficoll solution layer, and an erythrocyte and granulocyte layer. The cell capture assembly includes a capture channel, a capture inlet, and a capture outlet. The capture inlet and the capture outlet are in communication with the capture channel. An inner wall of the capture channel is provided with capture holes and negative-pressure capture chambers. Each capture hole is in communication with one negative-pressure capture chamber correspondingly.Type: ApplicationFiled: January 19, 2022Publication date: May 30, 2024Inventors: Chungen QIAN, Shunji LI, Bifeng LIU, Peng CHEN, Liqiang WU, Chang ZOU
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Publication number: 20240179817Abstract: System and method for controlling one or more light emitting diodes. For example, the system includes: a power supply controller configured to receive a cathode voltage from a cathode of a diode, the diode including an anode configured to receive a rectified voltage generated by a rectifying bridge, the power supply controller being further configured to generate a first signal based at least in part on the cathode voltage; and a driver configured to receive the first signal and generate a second signal based at least in part on the first signal, the driver being further configured to output the second signal to a gate terminal of a transistor, the transistor including a source terminal coupled to the driver and a first resistor, the transistor further including a drain terminal coupled to the one or more light emitting diodes and an output capacitor connected to the cathode of the diode.Type: ApplicationFiled: November 2, 2023Publication date: May 30, 2024Inventors: ZHUOYAN LI, Ke Li, Liqiang Zhu
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Patent number: 11997772Abstract: System and method for controlling a bleeder current to increase a power factor of an LED lighting system without any TRIAC dimmer. For example, the system for controlling a bleeder current to increase a power factor of an LED lighting system without any TRIAC dimmer includes: a first current controller configured to receive a rectified voltage generated by a rectifier that directly receives an AC input voltage without through any TRIAC dimmer; and a second current controller configured to: control a light emitting diode current flowing through one or more light emitting diodes that receive the rectified voltage not clipped by any TRIAC dimmer; and generate a sensing voltage based at least in part upon the light emitting diode current, the sensing voltage representing the light emitting diode current in magnitude.Type: GrantFiled: November 9, 2022Date of Patent: May 28, 2024Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Liqiang Zhu, Qian Fang, Zhilin Fan, Ke Li
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Publication number: 20240156195Abstract: The present application provides a comfortable lightweight bullet-proof and stab-resistant suit and a preparation method thereof. A first aspect of the present application provides a comfortable lightweight bullet-proof and stab-resistant suit, including a sheath and a protection core sheet disposed in the sheath, and the protection core sheet includes a first protection layer, a second protection layer, a third protection layer and a buffer layer which are sequentially stacked together. The bullet-proof and stab-resistant suit provided in the present application has better response protection characteristics in the process of bullet penetration or knife tip stab, and the prepared aramid unidirectional cloth has low areal density, apparent flatness, no bubbles, and excellent softness, so that any bending within 180° can be realized.Type: ApplicationFiled: April 25, 2023Publication date: May 16, 2024Inventors: Xinling FANG, Yuankun LIU, Dongmei XU, Qingsong AI, Hongxin LI, Hong CHEN, Zhaoyang LIU, Zhiyong PAN, Zhongwei WU, Zongjia LI, Nianhua LI, Liandong JIANG, Ruiling WANG, Long HU, Liqiang FU, Bing ZHANG, Junhong DAI, Fangning XUE
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Publication number: 20240153419Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.Type: ApplicationFiled: January 17, 2024Publication date: May 9, 2024Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yaming WANG, Liqiang CHEN, Dongdong ZHAO, Zuojia WANG, Xueyan LIU, Xu LI
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Patent number: 11956986Abstract: A flexible display screen includes: a flexible substrate (1); an OLED device layer (2) formed on the flexible substrate (1); an encapsulation layer(3), disposed on the OLED device layer(2) and encapsulating the OLED device layer (2); and an encapsulation protection layer (4) formed on the encapsulation layer (3). The embodiments of the present disclosure also provide a flexible display device and a manufacturing method of the flexible display screen.Type: GrantFiled: January 6, 2021Date of Patent: April 9, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Yaming Wang, Liqiang Chen, Yanxin Wang, Chuntong Jiang, Jiali Wang, Xu Li, Rui Hou, Le Chang
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Patent number: 11929371Abstract: Disclosed are an array substrate, a display panel and a display apparatus. The array substrate includes: gate lines, data lines, and pixel units. The gate lines and the data lines are arranged between at least part of the adjacent pixel units. The array substrate further includes: common electrode lead wires and common electrode layers. The common electrode lead wires are arranged on a same layer as the data lines, extend in a same direction as the data lines, and are located between at least part of the adjacent pixel units. The common electrode layers are insulated from the common electrode lead wires through insulating layers and are connected with the common electrode lead wires through via holes in the insulating layers. The via holes are located in a region where the gate lines and the common electrode lead wires intersect.Type: GrantFiled: September 24, 2021Date of Patent: March 12, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Bangran Fu, Huabin Chen, Yingqiang Gao, Liqiang Li, Yongzhi Song
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Publication number: 20240078777Abstract: The present disclosure relates to a control method of a virtual object, a control apparatus, a device and a medium. The method displays a target virtual scene in a target interactive interface, under the condition that there is a target virtual object in the plurality of virtual objects, displays a target control, the target virtual object being a virtual object controllable by the virtual subject in a non-contact manner; in response to receiving a trigger operation on the target control, causes the virtual subject to perform non-contact control on the target virtual object according to a control mode corresponding to the target control, wherein the target virtual scene includes a plurality of virtual objects and a virtual subject controlled by a user.Type: ApplicationFiled: September 1, 2023Publication date: March 7, 2024Inventors: Haixing ZHENG, Xiao CHEN, Liqiang WANG, Songyun DING, Chuanzan LI
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Patent number: 11922843Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.Type: GrantFiled: June 18, 2021Date of Patent: March 5, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yaming Wang, Liqiang Chen, Dongdong Zhao, Zuojia Wang, Xueyan Liu, Xu Li
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Patent number: 11696488Abstract: A method for enhancing aggregation state stability of organic semiconductor (OSC) films includes constructing the OSC film; introducing uniform and discontinuous nanoparticles on a surface of the film or an inside of the film. Electrical properties of the OSC film are not influenced by introducing the nanoparticles. Grain boundary, dislocation, stacking fault, and surface of the film are pinned by the nanoparticles, increasing potential barrier of the aggregation state evolution of the film, and thus enhancing the stability of the aggregation state and greatly improving maximum working temperature and storage lifetime of organic field-effect transistors. Under room temperature storage, morphology of the OSC film introduced with the nanoparticles is difficult to change, so that the stability of electrical properties of organic transistor components prepared from the film is ensured in a high-temperature and atmospheric working environment.Type: GrantFiled: November 27, 2022Date of Patent: July 4, 2023Assignee: TIANJIN UNIVERSITYInventors: Liqiang Li, Xiaosong Chen, Jiannan Qi, Wenping Hu
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Publication number: 20230103127Abstract: A method for enhancing aggregation state stability of organic semiconductor (OSC) films includes constructing the OSC film; introducing uniform and discontinuous nanoparticles on a surface of the film or an inside of the film. Electrical properties of the OSC film are not influenced by introducing the nanoparticles. Grain boundary, dislocation, stacking fault, and surface of the film are pinned by the nanoparticles, increasing potential barrier of the aggregation state evolution of the film, and thus enhancing the stability of the aggregation state and greatly improving maximum working temperature and storage lifetime of organic field-effect transistors. Under room temperature storage, morphology of the OSC film introduced with the nanoparticles is difficult to change, so that the stability of electrical properties of organic transistor components prepared from the film is ensured in a high-temperature and atmospheric working environment.Type: ApplicationFiled: November 27, 2022Publication date: March 30, 2023Inventors: Liqiang Li, Xiaosong Chen, Jiannan Qi, Wenping Hu
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Publication number: 20220157857Abstract: Disclosed are an array substrate, a display panel and a display apparatus. The array substrate includes: gate lines, data lines, and pixel units. The gate lines and the data lines are arranged between at least part of the adjacent pixel units. The array substrate further includes: common electrode lead wires and common electrode layers. The common electrode lead wires are arranged on a same layer as the data lines, extend in a same direction as the data lines, and are located between at least part of the adjacent pixel units. The common electrode layers are insulated from the common electrode lead wires through insulating layers and are connected with the common electrode lead wires through via holes in the insulating layers. The via holes are located in a region where the gate lines and the common electrode lead wires intersect.Type: ApplicationFiled: September 24, 2021Publication date: May 19, 2022Inventors: Bangran FU, Huabin CHEN, Yingqiang GAO, Liqiang LI, Yongzhi SONG
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Patent number: 11332570Abstract: The present invention relates to a composition for preparing flexible foams and the application thereof. The composition comprises the following components: a. an isocyanate mixture comprising: a1) an aliphatic and/or alicyclic isocyanate monomer, and a2) an aliphatic and/or alicyclic; isocyanate trimer, wherein the mass ratio of said monomer to said trimer is in a range of 3:1-200:1; b. a polymer polyol mixture comprising: b1) a first polyether polyol having a number average molecular weight of not less than 3000 g/mol with an ethylene oxide content of 5-20 wt. %, b2) a second polyether polyol having a number average molecular weight of not less than 3000 g/mol with an ethylene oxide content of more than 60 wt. %, wherein the mass ratio of said first polyether polyol to said second polyether polyol is in a range of 4:1-100:1; c. an isocyanate-reactive group comprising compound having a number average molecular weight of 32-400 g/mol; d. a catalyst; e. a foaming agent; and f.Type: GrantFiled: May 14, 2019Date of Patent: May 17, 2022Assignee: COVESTRO DEUTSCHLAND AGInventors: Dong Bo Zhao, Weicheng Wu, Zoe Deng, Demi Tang, Liqiang Li
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Publication number: 20210380752Abstract: The present invention relates to a method for preparing a rigid polyurethane foam using a non-continuous production process, the rigid polyurethane foam prepared therefrom, and use thereof.Type: ApplicationFiled: May 21, 2021Publication date: December 9, 2021Inventors: Wenping Wei, Liqiang Li, Jianwu Gao
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Publication number: 20210284817Abstract: The present invention relates to a rigid polyurethane foam for a discontinuous production process and a polyurethane composite panel, as well as use of the rigid polyurethane foam in insulation. The rigid polyurethane foam is made from a reaction system comprising an isocyanate component and a polyol component, wherein the polyol component includes at least one long-chain polyether polyol having a functionality of 2 and a number average molecular weight of 1800 to 4000, blowing agents, catalysts, etc. The polyurethane foam of the present invention has unexpectedly satisfactory dimensional stability and adhesion strength, as well as other good physical properties.Type: ApplicationFiled: June 25, 2019Publication date: September 16, 2021Inventors: Yefen Wei, Chun Lei Zheng, Wenping Wei, Liqiang Li
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Patent number: 10975212Abstract: The present invention provides a polyol composition for preparing a viscoelastic and reticulated polyurethane foam, comprising a first polyether polyol b1), a second polyether polyol b2), a third polyether polyol b3), and a surfactant b6). The present invention also provides a viscoelastic and reticulated polyurethane foam prepared from said polyol composition, wherein the polyurethane foam has a ball rebound rate of less than 15% determined according to GB/T6670-2008.Type: GrantFiled: June 8, 2016Date of Patent: April 13, 2021Assignee: Covestro Deutschland AGInventors: Liqiang Li, Qingyun Wang, Yongxing Lin, Zhong Cao, Kehan Xiong
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Publication number: 20190352445Abstract: The present invention relates to a composition for preparing flexible foams and the application thereof. The composition comprises the following components: a. an isocyanate mixture comprising: a1) an aliphatic and/or alicyclic isocyanate monomer, and a2) an aliphatic and/or alicyclic; isocyanate trimer, wherein the mass ratio of said monomer to said trimer is in a range of 3:1-200:1; b. a polymer polyol mixture comprising: b1) a first polyether polyol having a number average molecular weight of not less than 3000 g/mol with an ethylene oxide content of 5-20 wt. %, b2) a second polyether polyol having a number average molecular weight of not less than 3000 g/mol with an ethylene oxide content of more than 60 wt. %, wherein the mass ratio of said first polyether polyol to said second polyether polyol is in a range of 4:1-100:1; c. an isocyanate-reactive group comprising compound having a number average molecular weight of 32-400 g/mol; d. a catalyst; e. a foaming agent; and f.Type: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Inventors: Dong Bo Zhao, Weicheng WU, Zoe DENG, Demi TANG, Liqiang LI
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Publication number: 20190153184Abstract: The present invention relates to a process for producing polyurethane foams, preferably moulded flexible polyurethane foams, by reacting an isocyanate component which is a mixture obtained in the production of tolylene diisocyanate as a bottoms residue, and at least one further isocyanate component with a component reactive toward isocyanates. The invention further relates to polyurethane foams produced by the process according to the invention and to the use thereof.Type: ApplicationFiled: August 5, 2016Publication date: May 23, 2019Inventors: Sven MEYER-AHRENS, Tim LODDENKEMPER, Chenxi ZHANG, Liqiang LI
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Publication number: 20180155516Abstract: The present invention provides a polyol composition for preparing a viscoelastic and reticulated polyurethane foam, comprising a first polyether polyol b1), a second polyether polyol b2), a third polyether polyol b3), and a surfactant b6). The present invention also provides a viscoelastic and reticulated polyurethane foam prepared from said polyol composition, wherein the polyurethane foam has a ball rebound rate of less than 15% determined according to GB/T6670-2008.Type: ApplicationFiled: June 8, 2016Publication date: June 7, 2018Inventors: Liqiang Li, Qingyun Wang, Yongxin Lin, Zhong Cao, Kehan Xiong