Patents by Inventor Bo Mao
Bo Mao 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: 11927077Abstract: A high-frequency composite impactor including a high-frequency axial and a torsional impact assembly is disclosed. The high-frequency axial impact assembly includes an upper self-excited oscillation cavity, a lower self-excited oscillation cavity, an adjustment block and a lock nut. The torsional impact assembly includes an upper end cover, a reversing switch, a pendulum, a lower shell, a lower end cover, a nozzle, a connecting block and a retaining ring. The high-frequency axial impact assembly converts the flowing drilling fluid into a pulsed jet to achieve a high-frequency axial impact. The torsional impact assembly enables a torsional impact through a shunt, and finally enables a high-frequency composite impact, which can effectively reduce the stick-slip of the drill string, jump drilling and other downhole accidents. By reducing the friction between the drill string and the borehole wall, the impactor can reduce WOB loss, increase the ROP, and improve the drilling efficiency.Type: GrantFiled: September 26, 2022Date of Patent: March 12, 2024Assignees: Southwest Petroleum University, Sichuan Xieming Technology Co., Ltd.Inventors: Jialin Tian, Lanhui Mao, Yanniu Ren, Lin Yang, Haolin Song, Bo He, Jun Li, Lei Cha, Zhe Zhang, Yu Wei
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Patent number: 11929418Abstract: A gate structure includes a substrate divided into an N-type transistor region and a P-type transistor region. An interlayer dielectric covers the substrate. A first trench is embedded in the interlayer dielectric within the N-type transistor region. A first gate electrode having a bullet-shaped profile is disposed in the first trench. A gate dielectric contacts the first trench. An N-type work function layer is disposed between the gate dielectric layer and the first gate electrode. A second trench is embedded in the interlayer dielectric within the P-type transistor region. A second gate electrode having a first mushroom-shaped profile is disposed in the second trench. The gate dielectric layer contacts the second trench. The N-type work function layer is disposed between the gate dielectric layer and the second gate electrode. A first P-type work function layer is disposed between the gate dielectric layer and the N-type work function layer.Type: GrantFiled: November 11, 2021Date of Patent: March 12, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Jie-Ning Yang, Wen-Tsung Chang, Po-Wen Su, Kuan-Ying Lai, Bo-Yu Su, Chun-Mao Chiou, Yao-Jhan Wang
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Publication number: 20220352273Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a base substrate, a pixel definition layer, a light emitting layer and a spacer. The pixel definition layer is configured to define each of subpixels in the display panel and includes a groove structure which is disposed between adjacent subpixels, the spacer is disposed in the groove structure, the light emitting layer is disposed on a side of the pixel definition layer and the spacer away from the base substrate, and a thermal expansion efficient of the spacer is greater than a thermal expansion efficient of the light emitting layer.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bo MAO, Mengyu LUAN, Changjun JIANG, Jun LI, Lang LIU, Zexu LIU, Hongtao GUO
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Patent number: 11444138Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a base substrate, a pixel definition layer, a light emitting layer and a spacer. The pixel definition layer is configured to define each of subpixels in the display panel and includes a groove structure which is disposed between adjacent subpixels, the spacer is disposed in the groove structure, the light emitting layer is disposed on a side of the pixel definition layer and the spacer away from the base substrate, and a thermal expansion efficient of the spacer is greater than a thermal expansion efficient of the light emitting layer.Type: GrantFiled: May 13, 2019Date of Patent: September 13, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.Inventors: Bo Mao, Mengyu Luan, Changjun Jiang, Jun Li, Lang Liu, Zexu Liu, Hongtao Guo
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Patent number: 11200832Abstract: A pixel circuit is provided. A first terminal and a second terminal of a light-emitting sub-circuit are coupled to a first power supply terminal and a compensation sub-circuit respectively. A short-circuiting sub-circuit is coupled to the first terminal and the second terminal of, and short-circuits under control of a short-circuiting control terminal, the light-emitting sub-circuit. The compensation sub-circuit is coupled to a data voltage terminal, a reference voltage terminal, and a first electrode and a gate electrode of a driving transistor. The light-emitting sub-circuit emits a light of brightness in a level corresponding to a current flowing therethrough. The compensation sub-circuit loads, based on the data voltage terminal and the reference voltage terminal, a driving voltage related to a threshold voltage of the driving transistor onto the gate electrode of the driving transistor, such that a current flowing through the driving transistor is not influenced by its threshold voltage.Type: GrantFiled: May 24, 2018Date of Patent: December 14, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mengyu Luan, Xinfeng Wu, Youyuan Hu, Xinzhu Wang, Fei Li, Huihui Li, Chengpeng Zhao, Bo Mao, Kai Yang, Zhongsheng Qi, Jie Liu
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Patent number: 11118259Abstract: The present disclosure provides an evaporation device and an evaporation method. The evaporation device includes: an evaporation chamber; a plurality of spaced conductive baffles disposed in the evaporation chamber and dividing the evaporation chamber into a plurality of evaporation sub-chambers, the conductive baffles configured to carry charges of a first polarity; an evaporation source disposed in at least one of the evaporation sub-chambers; and a particle charging circuit disposed in at least one of the evaporation sub-chambers. The particle charging circuit is configured to control evaporation material particles generated from the evaporation source in at least one of the evaporation sub-chambers to have charges of the first polarity.Type: GrantFiled: July 4, 2018Date of Patent: September 14, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bo Mao, Changjun Jiang, Jun Li, Langlang Ha, Yikun Dou, Yang Xu, Mengyu Luan
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Publication number: 20210225254Abstract: A pixel circuit is provided. A first terminal and a second terminal of a light-emitting sub-circuit are coupled to a first power supply terminal and a compensation sub-circuit respectively. A short-circuiting sub-circuit is coupled to the first terminal and the second terminal of, and short-circuits under control of a short-circuiting control terminal, the light-emitting sub-circuit. The compensation sub-circuit is coupled to a data voltage terminal, a reference voltage terminal, and a first electrode and a gate electrode of a driving transistor. The light-emitting sub-circuit emits a light of brightness in a level corresponding to a current flowing therethrough. The compensation sub-circuit loads, based on the data voltage terminal and the reference voltage terminal, a driving voltage related to a threshold voltage of the driving transistor onto the gate electrode of the driving transistor, such that a current flowing through the driving transistor is not influenced by its threshold voltage.Type: ApplicationFiled: May 24, 2018Publication date: July 22, 2021Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Mengyu LUAN, Xinfeng WU, Youyuan HU, Xinzhu WANG, Fei LI, Huihui LI, Chengpeng ZHAO, Bo MAO, Kai YANG, Zhongsheng QI, Jie LIU
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Patent number: 10916614Abstract: An array substrate, a display panel, a light-detecting method for a display panel, and a method for controlling a display panel are provided. The array substrate includes a base substrate; a plurality of pixel regions arranged in an array on the base substrate, the pixel regions each including a light-emitting region; and a light-detecting circuit in at least one pixel region, the light-detecting circuit configured to detect light emitted from the light-emitting region of the at least one pixel region in which the light-detecting circuit is provided.Type: GrantFiled: April 11, 2019Date of Patent: February 9, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mengyu Luan, Yuching Peng, Youyuan Hu, Zhongsheng Qi, Bo Mao, Fei Li, Jianhui Zhang, Xinfeng Wu, Huihui Li, Xinzhu Wang
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Patent number: 10909900Abstract: A display substrate, a display device and a display control method are provided. The display substrate comprises a plurality of pixel units. Each of the plurality of pixel units includes a first region and a second region which is switchable between a non-opaque status and an opaque status. The first region comprises a first light-emitting unit which is a single-sided light-emitting unit. The second region includes at least one color-variable component covering the second region. Each of the at least one color-variable component is switchable between a transparent status and a non-transparent status. The second region is in the non-opaque status in a condition that the at least one color-variable component is in a transparent status. The second region is in the opaque status in a condition that the at least one color-variable component is in a non-transparent status.Type: GrantFiled: June 3, 2019Date of Patent: February 2, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mengyu Luan, Zhongsheng Qi, Bo Mao, Youyuan Hu, Lang Liu
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Patent number: 10885821Abstract: An inspection device includes: a driving circuit, configured to input display data of an image to a pixel electrode of the array substrate; a light-emitting device comprising a first electrode, a second electrode, and a plurality of light-emitting units arranged between the first electrode and the second electrode, and the plurality of light-emitting units is capable of emitting light under the effect of an electric field between the first electrode and the second electrode; a test circuit, configured to electrically connect the first electrode of the light-emitting device to the pixel electrode of the array substrate, and input a first electrical signal to the second electrode of the light-emitting device, to generate the electric field; and a processing circuit, configured to acquire optical information of the light emitted by the light-emitting device, and determine whether there is an electrical defect in the array substrate according to the optical information.Type: GrantFiled: April 30, 2019Date of Patent: January 5, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Guangyao Li, Bo Mao, Xuehai Gui, Qinghe Wang, Jun Wang, Dongfang Wang, Liangchen Yan
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Publication number: 20200258959Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a base substrate, a pixel definition layer, a light emitting layer and a spacer. The pixel definition layer is configured to define each of subpixels in the display panel and includes a groove structure which is disposed between adjacent subpixels, the spacer is disposed in the groove structure, the light emitting layer is disposed on a side of the pixel definition layer and the spacer away from the base substrate, and a thermal expansion efficient of the spacer is greater than a thermal expansion efficient of the light emitting layer.Type: ApplicationFiled: May 13, 2019Publication date: August 13, 2020Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Bo Mao, Mengyu Luan, Changjun Jiang, Jun Li, Lang Liu, Zexu Liu, Hongtao Guo
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Publication number: 20200168144Abstract: A display substrate, a display device and a display control method are provided. The display substrate comprises a plurality of pixel units. Each of the plurality of pixel units includes a first region and a second region which is switchable between a non-opaque status and an opaque status. The first region comprises a first light-emitting unit which is a single-sided light-emitting unit. The second region includes at least one color-variable component covering the second region. Each of the at least one color-variable component is switchable between a transparent status and a non-transparent status. The second region is in the non-opaque status in a condition that the at least one color-variable component is in a transparent status. The second region is in the opaque status in a condition that the at least one color-variable component is in a non-transparent status.Type: ApplicationFiled: June 3, 2019Publication date: May 28, 2020Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Mengyu LUAN, Zhongsheng QI, Bo MAO, Youyuan HU, Lang LIU
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Patent number: 10654290Abstract: The present disclosure is related to a liquid dispensing amount control apparatus. The liquid dispensing amount control apparatus may include at least one nozzle and at least one heating device. The heating device may be configured to heat a position of liquid dispensed from the nozzle to form a droplet.Type: GrantFiled: September 5, 2018Date of Patent: May 19, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Mengyu Luan, Youyuan Hu, Xinfeng Wu, Lin Chen, Bo Mao, Fei Li, Xinzhu Wang, Huihui Li
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Publication number: 20200066195Abstract: An inspection device includes: a driving circuit, configured to input display data of an image to a pixel electrode of the array substrate; a light-emitting device comprising a first electrode, a second electrode, and a plurality of light-emitting units arranged between the first electrode and the second electrode, and the plurality of light-emitting units is capable of emitting light under the effect of an electric field between the first electrode and the second electrode; a test circuit, configured to electrically connect the first electrode of the light-emitting device to the pixel electrode of the array substrate, and input a first electrical signal to the second electrode of the light-emitting device, to generate the electric field; and a processing circuit, configured to acquire optical information of the light emitted by the light-emitting device, and determine whether there is an electrical defect in the array substrate according to the optical information.Type: ApplicationFiled: April 30, 2019Publication date: February 27, 2020Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Guangyao LI, Bo MAO, Xuehai GUI, Qinghe WANG, Jun WANG, Dongfang WANG, Liangchen YAN
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Publication number: 20200027941Abstract: An array substrate, a display panel, a light-detecting method for a display panel, and a method for controlling a display panel are provided. The array substrate includes a base substrate; a plurality of pixel regions arranged in an array on the base substrate, the pixel regions each including a light-emitting region; and a light-detecting circuit in at least one pixel region, the light-detecting circuit configured to detect light emitted from the light-emitting region of the at least one pixel region in which the light-detecting circuit is provided.Type: ApplicationFiled: April 11, 2019Publication date: January 23, 2020Inventors: Mengyu Luan, Yuching Peng, Youyuan Hu, Zhongsheng Qi, Bo Mao, Fei Li, Jianhui Zhang, Xinfeng Wu, Huihui Li, Xinzhu Wang
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Publication number: 20190203339Abstract: The present disclosure provides an evaporation device and an evaporation method. The evaporation device includes: an evaporation chamber; a plurality of spaced conductive baffles disposed in the evaporation chamber and dividing the evaporation chamber into a plurality of evaporation sub-chambers, the conductive baffles configured to carry charges of a first polarity; an evaporation source disposed in at least one of the evaporation sub-chambers; and a particle charging circuit disposed in at least one of the evaporation sub-chambers. The particle charging circuit is configured to control evaporation material particles generated from the evaporation source in at least one of the evaporation sub-chambers to have charges of the first polarity.Type: ApplicationFiled: July 4, 2018Publication date: July 4, 2019Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bo MAO, Changjun JIANG, Jun LI, Langlang HA, Yikun DOU, Yang XU, Mengyu LUAN
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Patent number: 10284204Abstract: There are provided a logic unit circuit and a pixel driving circuit, which relate to a display technical field and are used to solve the problem that technical difficulties are increased due to mixed use of different types of transistors in the logic unit circuit. The logic unit circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor and a tenth transistor of a same type. The logic unit circuit is used to realize logic gate operation.Type: GrantFiled: June 13, 2018Date of Patent: May 7, 2019Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.Inventors: Xuehuan Feng, Bo Mao
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Publication number: 20190061380Abstract: The present disclosure is related to a liquid dispensing amount control apparatus. The liquid dispensing amount control apparatus may include at least one nozzle and at least one heating device. The heating device may be configured to heat a position of liquid dispensed from the nozzle to form a droplet.Type: ApplicationFiled: September 5, 2018Publication date: February 28, 2019Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Mengyu Luan, Youyuan Hu, Xinfeng Wu, Lin Chen, Bo Mao, Fei Li, Xinzhu Wang, Huihui Li
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Publication number: 20190068196Abstract: There are provided in embodiments of the present disclosure a logic unit circuit and a pixel driving circuit, which relate to a display technical field and are used to solve the problem that technical difficulties are increased due to mixed use of different types of transistors in the logic unit circuit. The logic unit circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor and a tenth transistor of a same type. The logic unit circuit is used to realize logic gate operation.Type: ApplicationFiled: June 13, 2018Publication date: February 28, 2019Applicants: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.Inventors: Xuehuan Feng, Bo Mao
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Patent number: 9639318Abstract: This provides a method, device, and system for sharing image data. When detecting an image being rendered on an image-rendering interface of its rendering application, a first terminal can obtain image information of the image being rendered and location information associated with the image information. The first terminal can transmit a first image data to a server, the first image data including the image information and location information. The server can transmit the first image data to a second terminal which shares images with the first terminal, the second terminal also equipped with an image rendering application. The second terminal can receive the first image data and render an image based on the image information at a location corresponding to the location data on an interface of its image-rendering application. This can facilitate image data sharing among multiple terminals.Type: GrantFiled: November 22, 2013Date of Patent: May 2, 2017Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xiao Bo Mao, Bo Song Chen, Xin Hui Zhang, Can Wang