Patents by Inventor Pengfei Yu
Pengfei Yu 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: 20230252941Abstract: A display substrate and manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, and a shift register unit and a first clock signal line that are on the base substrate, the first clock signal line extends along a first direction on the base substrate and is configured to provide a first clock signal to the shift register unit, the shift register unit includes an input circuit, an output circuit, a first control circuit and an output control circuit, and the first control circuit includes a first control switch and a second control switch, an active layer of the first control switch and an active layer of the second control switch are a continuous control semiconductor layer, the control semiconductor layer extends along the first direction.Type: ApplicationFiled: April 18, 2023Publication date: August 10, 2023Inventors: Pengfei YU, Lu BAI, Jie DAI, Linhong HAN
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Publication number: 20230245623Abstract: A display substrate includes a scan driving circuit and a display area. The scan driving circuit includes a plurality of shift register units, a first voltage signal line, a second voltage signal line, a first clock signal line, and a second clock signal line, all of which extend in a first direction. The display area includes at least one driving transistor configured to drive a light-emitting element for display. At least one of the plurality of shift register units includes an output circuit and a signal output line, wherein the output circuit is coupled to the first voltage signal line, the second voltage signal line, and the signal output line, and the signal output line extends in a second direction intersecting the first direction. The output circuit includes a transistor that is provided between the first voltage signal line and the second voltage signal line.Type: ApplicationFiled: April 7, 2023Publication date: August 3, 2023Inventors: Jie DAI, Pengfei YU, Shun ZHANG, Lu BAI, Siyu WANG, Mengqi WANG, Hao ZHANG
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Patent number: 11706958Abstract: A display panel is provided. The display panel includes a display part; and a fanout part. The display part includes a plurality of pixel driving circuits. The fanout part includes a bendable portion and a multiplexer. The display panel includes a plurality of first signal lines extending through the bendable portion, and connecting the plurality of pixel driving circuits to the multiplexer. A direct current supply line extending through the bendable portion and electrically connected to the plurality of pixel driving circuits. A portion of the direct current supply line is between the multiplexer and the bendable portion and crosses over the plurality of first signal lines.Type: GrantFiled: December 17, 2019Date of Patent: July 18, 2023Assignees: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.Inventors: Haigang Qing, Tinghua Shang, Pengfei Yu
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Patent number: 11699397Abstract: The present disclosure provides a display substrate, a manufacturing method and a display device. The display substrate comprises a scan driving circuit and a display area, wherein the scan driving circuit comprises a plurality of shift register units, a first voltage signal line, a second voltage signal line, a first clock signal line, and a second clock signal line, all of which extend in a first direction; and the display area comprises at least one driving transistor configured to drive a light-emitting element for display. At least one of the plurality of shift register units comprises an output circuit and a signal output line, wherein the output circuit is coupled to the first voltage signal line, the second voltage signal line, and the signal output line, and the signal output line extends in a second direction intersecting the first direction. The output circuit comprises a transistor that is provided between the first voltage signal line and the second voltage signal line.Type: GrantFiled: March 16, 2020Date of Patent: July 11, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jie Dai, Pengfei Yu, Shun Zhang, Lu Bai, Siyu Wang, Mengqi Wang, Hao Zhang
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Publication number: 20230213815Abstract: The present application discloses a display module and a manufacturing method thereof, and a mobile terminal. The display module includes a printed circuit board connected to a backlight flexible circuit board. A side of the backlight flexible circuit board connected to the printed circuit board comprises at least two first bonding regions, wherein each of the first bonding regions includes at least two first bonding terminals distributed therein, and wherein a distance between any two adjacent first bonding regions is greater than a distance between any two adjacent first bonding terminals in each of the first bonding regions.Type: ApplicationFiled: July 23, 2021Publication date: July 6, 2023Inventor: Pengfei YU
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Patent number: 11688339Abstract: A display substrate and manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, and a shift register unit and a first clock signal line that are on the base substrate, the first clock signal line extends along a first direction on the base substrate and is configured to provide a first clock signal to the shift register unit, the shift register unit includes an input circuit, an output circuit, a first control circuit and an output control circuit, and the first control circuit includes a first control transistor and a second control transistor, an active layer of the first control transistor and an active layer of the second control transistor are a continuous control semiconductor layer, the control semiconductor layer extends along the first direction.Type: GrantFiled: April 10, 2020Date of Patent: June 27, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Pengfei Yu, Lu Bai, Jie Dai, Linhong Han
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Publication number: 20230200155Abstract: Embodiments of this disclosure provide a display substrate and a display device. The display substrate includes: sub-pixels located on a base substrate; a first conductive layer located on one side of the base substrate, and including signal lines sequentially disposed in a first direction and extending towards a second direction, and signal line bulges and anode adaptor parts located on the same side of the signal line and disposed alternately; and anodes located between the first conductive layer and a pixel defining layer. Each anode includes an effective part exposed by a corresponding sub-pixel opening, the effective parts of at least part of the sub-pixels have overlapping regions with the signal line bulges and the anode adaptor parts in the second direction, and the second direction is perpendicular to the first direction.Type: ApplicationFiled: August 31, 2020Publication date: June 22, 2023Inventors: Tinghua SHANG, Yi ZHANG, Haigang QING, Pengfei YU, Yang ZHOU
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Publication number: 20230180589Abstract: A display module (10) includes: a display panel (12) and a circuit board (14) coupled to the display panel (12). The display panel (12) includes a driving chip (122) and a display unit (124); and the circuit board (14) includes a first filter element (142), wherein the first filter element (142) is coupled to the driving chip (122) and the display unit (124), and a direct current signal output by the driving chip (122) is filtered by the first filter element (142) and then transmitted to the display unit (124). The present disclosure also provides a display apparatus (1100).Type: ApplicationFiled: June 19, 2020Publication date: June 8, 2023Inventors: Yu WANG, Yi ZHANG, Tingliang LIU, Tinghua SHANG, Huijuan YANG, Yang ZHOU, Pengfei YU, Linhong HAN, Hao ZHANG, Xiaofeng JIANG, Huijun LI
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Patent number: 11665944Abstract: Embodiments of the present disclosure provide a display panel and a display device. The display panel includes a substrate; a first electrode; a second electrode; an organic light-emitting functional layer; a line scanning drive circuit located in a surrounding area; a first flat layer; a fixed potential signal line located in the surrounding area, wherein the fixed potential signal line includes a first and a second conductive parts; an overlapping area is formed between an orthographic projection of the second conductive part on the substrate and an orthographic projection of the line scanning drive circuit on the substrate; the second conductive part includes a plurality of first through holes; and a conductive connection layer; and the conductive connection layer and the second conductive part at least are in direct contact in the overlapping area between the second conductive part and the line scanning drive circuit.Type: GrantFiled: August 6, 2020Date of Patent: May 30, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Pengfei Yu, Haigang Qing, Tinghua Shang, Jie Dai, Lu Bai, Chenxing Wan, Qiang Zhang
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Publication number: 20230161190Abstract: A display panel and a display device are disclosed. In preparing the display panel, based on a height difference formed between a plurality of first column spacers and a plurality of second column spacers, as a color filter substrate deforms during a vacuum assembly process, a deformation area of a blind hole area increases because the second column spacers are not in contact with an array substrate in the blind hole area, resulting in a decrease in a radius of curvature of the deformation of the blind hole area, so that an amount of deformation is reduced and poor focusing due to Newton's ring effect on the blind hole can be prevented.Type: ApplicationFiled: April 9, 2020Publication date: May 25, 2023Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Pengfei YU, Tao SONG
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Patent number: 11657750Abstract: A display substrate and a display panel are disclosed. The display substrate includes a base substrate having an active area and a peripheral area surrounding the active area; a plurality of sub-pixels, in the active area; a plurality of first pins and a plurality of second pins located in the peripheral area; a plurality of first array test pins located between the plurality of first pins and the plurality of second pins and respectively electrically coupled to a plurality of array test signal lines; and a plurality of second array test pins located between the plurality of first pins and the plurality of second pins and extending in a direction along a boundary of the active area, wherein the plurality of first array test pins are located on at least one side of the plurality of second array test pins in the direction along the boundary of the active area.Type: GrantFiled: July 8, 2020Date of Patent: May 23, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yu Wang, Yi Zhang, Tingliang Liu, Chang Luo, Tinghua Shang, Huijuan Yang, Yang Zhou, Pengfei Yu, Shun Zhang, Linhong Han, Meng Zhang, Hao Zhang, Xiaofeng Jiang, Huijun Li, Yupeng He, Xin Zhang
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Publication number: 20230157079Abstract: This disclosure discloses a display panel and a display apparatus. The display panel includes: a substrate, wherein the substrate has a display region and a border region surrounding the display region; the border region includes a first power voltage line and a first planarization layer sequentially stacked on a side of the substrate; the border region has a first dam region surrounding the display region and a second dam region surrounding the first dam region; an orthographic projection of the first power voltage line on the substrate is within the first dam region; the first planarization layer is at least within the first dam region and the second dam region, and the first planarization layer within the first dam region at least covers a side surface of the first power voltage line; and the first planarization layer has a first groove and a second groove.Type: ApplicationFiled: July 27, 2020Publication date: May 18, 2023Inventors: Sen DU, Li SONG, Pengfei YU, Jie DAI, Lu BAI
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Patent number: 11641208Abstract: A frequency locking method for a phase-locked loop comprises the following steps: S1, a frequency control module controls a numerically controlled oscillator to obtain an maximum output frequency and a minimum output frequency; S2, obtain a minimum frequency ratio and a maximum frequency ratio by means of a time-to-digital converter and the frequency control module; S3, calculate a first frequency control word and a first frequency ratio according to the minimum frequency ratio and the maximum frequency ratio; S4, the frequency control module uses the Newton's iterative method to recalculate a new frequency control word; S5, obtain a new frequency ratio according to the new frequency control word; S6, if the new frequency ratio is within an error range, end iteration and stably output the new frequency control word, and otherwise, jump to step S4.Type: GrantFiled: May 11, 2022Date of Patent: May 2, 2023Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Zhijian Chen, Ziying Wu, Changjian Zhou, Pengfei Yu, Bin Li, Shaolin Zhou
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Publication number: 20230112912Abstract: A display panel is provided. The display panel includes a display part; and a fanout part. The display part includes a plurality of pixel driving circuits. The fanout part includes a bendable portion and a multiplexer. The display panel includes a plurality of first signal lines extending through the bendable portion, and connecting the plurality of pixel driving circuits to the multiplexer. A direct current supply line extending through the bendable portion and electrically connected to the plurality of pixel driving circuits. A portion of the direct current supply line is between the multiplexer and the bendable portion and crosses over the plurality of first signal lines.Type: ApplicationFiled: December 17, 2019Publication date: April 13, 2023Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Haigang Qing, Tinghua Shang, Pengfei Yu
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Patent number: 11621572Abstract: A method of operating an electric power system, which may include: determining a charge state of a first battery unit and a charge state of a second battery unit; determining a difference between the charge state of the first battery unit and the charge state of the second battery unit; and determining whether to enable discharging simultaneously of both the first battery unit and the second battery unit, or to enable discharging of one of the first and second battery units, based on the difference between the charge state of the first battery unit and the charge state of the second battery unit. At least one of the first and second battery units may be a swappable battery unit. The disclosure further relates to an electric power system and to a computer executable code including instructions for operating an electric power system.Type: GrantFiled: April 2, 2020Date of Patent: April 4, 2023Assignee: GRABTAXI HOLDINGS PTE. LTD.Inventors: Xihu Wu, Lei Jiang, Pengfei Yu, Yi Zheng, He Zhang
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Publication number: 20230039954Abstract: A method of operating an electric power system, which may include: determining a charge state of a first battery unit and a charge state of a second battery unit; determining a difference between the charge state of the first battery unit and the charge state of the second battery unit; and determining whether to enable discharging simultaneously of both the first battery unit and the second battery unit, or to enable discharging of one of the first and second battery units, based on the difference between the charge state of the first battery unit and the charge state of the second battery unit. At least one of the first and second battery units may be a swappable battery unit. The disclosure further relates to an electric power system and to a computer executable code including instructions for operating an electric power system.Type: ApplicationFiled: April 2, 2020Publication date: February 9, 2023Inventors: Xihu WU, Lei JIANG, Pengfei YU, Yi ZHENG, He ZHANG
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Patent number: 11574567Abstract: A display panel includes a plurality of sub-pixels and a plurality of data lines, and a detection circuit. The data lines include at least one first data line. The detection circuit includes a first detection signal line, a detection control signal line, and at least one first switch. The first detection signal line and the detection control signal line detour along an edge of the active area. The first detection signal line is configured to transmit a detection signal, and the detection control signal line is configured to transmit a detection control signal. The first switch is electrically connected to the first detection signal line, the detection control signal line, and the at least one first data line, and is configured to close a line between the first detection signal line and the first data line, in response to the detection control signal.Type: GrantFiled: May 28, 2021Date of Patent: February 7, 2023Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yu Wang, Yi Zhang, Tingliang Liu, Shun Zhang, Tinghua Shang, Huijuan Yang, Pengfei Yu, Yang Zhou, Linhong Han, Xiaofeng Jiang, Hao Zhang, Huijun Li
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Publication number: 20230024029Abstract: A display driving module includes a gate driving circuit, a plurality of data lines and a data driving circuit. The pixel circuits in odd-numbered rows and one column are electrically connected to a data line, and the pixel circuits in even-numbered rows and the one column are electrically connected to another data line. The data driving circuit includes a data driver and a multiplexing circuit, the multiplexing circuit includes a first multiplexing sub-circuit and a second multiplexing sub-circuit. The gate driving circuit includes a plurality of levels of shift register units, and an nth-level shift register unit is electrically connected to the pixel circuits in a (2n?1)th row and a (2n)th row, and configured to apply a same gate driving signal to the pixel circuits in the (2n?1)th row and the (2n)th row, where n is a positive integer.Type: ApplicationFiled: March 30, 2021Publication date: January 26, 2023Inventors: Pengfei YU, Yi ZHANG, Jie DAI, Lu BAI
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Publication number: 20230005432Abstract: A display substrate includes a scanning driving circuit arranged on a base substrate. The scanning driving circuit includes a plurality of shift register units and a first voltage signal line extending in a first direction. At least one shift register unit includes an output capacitor and a first transistor, a first electrode thereof is coupled to the first voltage signal line, and a second electrode thereof is coupled to an electrode plate of the output capacitor. A maximum distance between an orthogonal projection of the first electrode/second electrode of the first transistor onto the base substrate and an orthogonal projection of the first voltage signal line/the electrode plate of the output capacitor onto the base substrate is smaller than a first/second predetermined distance in a second direction, and the first direction intersects the second direction.Type: ApplicationFiled: September 9, 2022Publication date: January 5, 2023Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jie DAI, Pengfei YU, Huijuan YANG, Lu BAI, Huijun LI, Xiaofeng JIANG
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Publication number: 20220413336Abstract: A liquid crystal display panel, including a display body, a lower polarizer, and a backlight plate. The display body includes a light transmission hole, the backlight plate includes a light shielding plate connected to the display body, the light shielding plate is provided with a first through hole coaxial with the light transmission hole; wherein the display body is provided with an annular shielding member located in the first through hole, the annular shielding member is provided with a second through hole coaxial with the light transmission hole, a diameter of the second through hole is greater than or equal to a diameter of the light transmission hole.Type: ApplicationFiled: September 24, 2019Publication date: December 29, 2022Inventor: Pengfei YU