Patents by Inventor Chao Dai
Chao Dai 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: 20250225928Abstract: A display panel is provided by the present application. The display panel includes a plurality of sub-pixels, wherein each sub-pixel includes a driving circuit. The driving circuit includes a light-emitting device, a driving transistor, a first transistor, a first capacitor, a second transistor, and a third transistor. A characteristic of the oxide of thin film transistor is used to suppress a gate electrical potential change of the driving transistor within a frame time after the first transistor is turned off by electrically connecting a drain electrode of the first transistor and a gate electrode of the driving transistor.Type: ApplicationFiled: December 21, 2021Publication date: July 10, 2025Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Xuanyun WANG, Chao DAI, Fang QIN
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Patent number: 12354549Abstract: A pixel driving circuit, a driving method thereof, and a display panel are proposed. The pixel driving circuit includes a switching transistor connected between a gate of the driving transistor and the initialization voltage node and between the first electrode of the driving transistor. The active layer of the switching transistor includes an oxide semiconductor with a characteristics of low leakage current. The display quality is improved when the display panel is operated in the low-frequency driving mode for display.Type: GrantFiled: May 6, 2024Date of Patent: July 8, 2025Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xuanyun Wang, Chao Dai
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Publication number: 20250218361Abstract: A pixel circuit and a display panel. The pixel circuit includes a driving transistor, a write-in transistor, a first light emission control transistor, a second light emission control transistor, and a first initialization transistor. By initializing a potential of a source or a drain of the driving transistor at least once before and after a charging phase of a frame, the potential of the source or the drain of the driving transistor may be stabilized.Type: ApplicationFiled: June 28, 2023Publication date: July 3, 2025Inventors: Xiaoxia ZHANG, Chao DAI, Zhilin YANG
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Publication number: 20250184419Abstract: A display panel and a display device are disclosed in the present application. The display panel further includes a panel body, a back plate, and a bending protecting layer. The panel body includes a display portion, and the display portion is located in a planar display area and a curved display area. The back plate is provided on a side of the display portion and in the planar display area and the curved display area. The bending protecting layer is disposed on a side of the back plate away from the display portion and at least in the corner curved sub-area. Material of the bending protecting layer includes a plastic metal material.Type: ApplicationFiled: December 11, 2023Publication date: June 5, 2025Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yanqiang DUAN, Chao DAI, Jialiang TANG, Wen HAN, Zongwei LIU
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Patent number: 12283228Abstract: The present disclosure provides a display panel and a display device. The display panel includes a substrate, and a driving circuit layer disposed at a side of the substrate. The driving circuit layer includes multistage gate driving units disposed in a non-display area and stage transmission signal lines connecting the gate driving units of different stages. The driving circuit layer includes a first semiconductor layer disposed at the side of the substrate, the first semiconductor layer includes a plurality of first semiconductors disposed in non-display regions, and the gate driving units include the first semiconductors; and the stage transmission signal line is disposed between the first semiconductor layer and the substrate, and is arranged to overlap with at least a portion of the gate driving unit in the non-display area.Type: GrantFiled: February 28, 2023Date of Patent: April 22, 2025Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Junyan Hu, Chao Dai
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Patent number: 12283241Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a display panel. The pixel driving circuit includes a driving transistor; a compensation module including a first transistor, a compensation transistor for compensating a threshold voltage of the driving transistor, a second transistor, and a storage capacitor connected in series between a source or a drain of the compensation transistor and a gate of the driving transistor; and a data writing module including a data writing transistor connected to an upper plate of the storage capacitor, to improve display effect.Type: GrantFiled: September 28, 2023Date of Patent: April 22, 2025Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xuanyun Wang, Chao Dai
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Publication number: 20250124875Abstract: The present application discloses a display panel including a quantity N of driver units that are cascaded. The quantity N of the driver units are arranged along a first direction. Each of the driver units includes a first output module, a signal generation module, and a second output module disposed along a second direction. The first output module is configured to output a first gate electrode driving signal. The second output module is configured to output a second gate electrode driving signal. The first gate electrode driving signal is different from the second gate electrode driving signal. The first output module includes a first buffer unit and a second buffer unit stacked on each other along a third direction. The present application stacks two buffer units in the first output module, which reduce a width of a frame occupied by the first output module while guaranteeing performance of transistors.Type: ApplicationFiled: December 1, 2023Publication date: April 17, 2025Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Huanxi ZHANG, Chao DAI
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Patent number: 12205536Abstract: The present disclosure discloses a pixel circuit and a display panel. The pixel circuit comprises a second wire, a first light-emitting control unit, a driving unit, and a compensation unit. A control terminal of the first light-emitting control unit and a control terminal of the compensation unit share the second wire, which can save a wire quantity of the pixel circuit, thereby improving display resolution; at the same time, a control terminal of the driving unit is only equipped with the compensation unit, which reduces a leakage path of the control terminal of the driving unit.Type: GrantFiled: September 6, 2021Date of Patent: January 21, 2025Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xuanyun Wang, Cheng Chen, Chao Dai, Yixian Zhang
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Publication number: 20250018632Abstract: Molding equipment for a fusion-reactor armored conductor is provided, relating to the technical field of four-sided extrusion molding machines. The molding equipment includes a molding machine body, a pressing device and a shaping device are sequentially arranged inside the molding machine body. The pressing device includes four driving devices, each driving device includes a servo motor, a transmission device, a pressing roller, a power output shaft, and a pressing support. The servo motor drives the power output shaft to rotate through the transmission device, the pressing roller is arranged on the power output shaft, and the power output shaft is connected to the pressing support through a copper sleeve sliding bearing. The shaping device includes four shaping rollers. Each of the pressing device and the shaping device is internally provided with a roller adjusting device.Type: ApplicationFiled: September 19, 2023Publication date: January 16, 2025Inventors: Xuelong TAO, Chao DAI, Zuojiafeng WU, Yu WU, Feng LING, Malin GONG, Changneng ZHANG
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Patent number: 12183013Abstract: A method and system for detecting a leakage target by integrating temporal information. The method comprises: acquiring multiple frames of images of a target position, and arranging the multiple frames of images based on temporal information corresponding to the multiple frames of images to obtain a target image sequence; merging, in a channel dimension, the multiple frames of images in the target image sequence to obtain a multi-dimensional tensor; performing convolution processing on the multi-dimensional tensor to obtain a first output result, wherein the first output result is used for representing a frame difference between every two adjacent ones of the multiple frames of images; calculating an accumulated frame difference corresponding to the multiple frames of images based on the first output result; and inputting the accumulated frame difference to a trained target detection model as input data to obtain a second output result integrated with the temporal information.Type: GrantFiled: June 19, 2024Date of Patent: December 31, 2024Assignee: CHENGDU GREATECH ELECTRONIC TECHNOLOGY CO., LTD.Inventors: Bin Yang, Xiang Zhang, Chao Dai
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Patent number: 12176691Abstract: A reversible thermosensitive early-warning environment-friendly flame-retardant protective sleeve is provided, which includes an outer protective sleeve. A cushioning mounting block is mounted on one side of the outer protective sleeve. A flame-retardant layer is provided on a surface of the cushioning mounting block. A first splicing block and a second splicing block are mounted on an inner wall of the outer protective sleeve. Expansion blocks are mounted on surfaces of both the first splicing block and the second splicing block. A sharp block is mounted at a bottom of each of the expansion blocks. A flame-retardant device is provided at a bottom of the sharp block.Type: GrantFiled: November 2, 2021Date of Patent: December 24, 2024Assignee: Anhui Efarad Electric Power Technology Co., LtdInventors: Wenzhong Dai, Nikolai Konkodievich Zaitsev, Wenzong Xu, Youqun Wang, Mian Dai, Zhang Dai, Yujuan Wu, Chao Dai, Liang Li
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Publication number: 20240379046Abstract: The present disclosure provides a display panel and a display device. In the display panel, a stage transmission signal line is provided between a first semiconductor layer and a substrate, so that a parasitic capacitance is prevented from being generated between the stage transmission signal line and metal wires of a gate driving unit located above the first semiconductor layer. The stage transmission signal line may overlap with at least a part of the gate driving unit in the non-display area, the space of a bezel occupied by the stage transmission signal line is reduced, and the bezel of the display panel is shortened.Type: ApplicationFiled: February 28, 2023Publication date: November 14, 2024Inventors: Junyan HU, Chao DAI
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Publication number: 20240363758Abstract: A display panel is provided by embodiments of the present application, a thin film transistor includes: a first gate electrode including a first side slope, a second side slope oppositely arranged, and a top surface; a first gate insulating layer covering the first gate electrode; a semiconductor layer arranged on the first gate insulating layer, wherein the semiconductor layer includes a first end, a second end, and a channel arranged between the first end and the second end, the second end is at least partially on the top surface, the channel is at least partially located on the first side slope.Type: ApplicationFiled: February 28, 2023Publication date: October 31, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zhifu LI, Guanghui LIU, Chao DAI, Fei AI, Dewei SONG, Zhuang LI
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Publication number: 20240297184Abstract: The present application provides a display panel and a display device. In the display panel, by disposing at least a part of at least one of the reset signal line and the low-potential signal line in the gate driving circuit area, an area of at least the part of the gate driving circuit area occupied by the reset signal line and the low-potential signal line can be reduced, so that a width of a border required for the part is reduced, thereby reducing the border of the display panel.Type: ApplicationFiled: August 30, 2022Publication date: September 5, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Junyan HU, Chao DAI
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Patent number: 12080233Abstract: An embodiment of the present application discloses a display panel. A pixel circuit includes a driving transistor, a data writing transistor, a storage capacitor, and a first restoring transistor. A gate electrode of the first restoring transistor is electrically connected to a second scanning line, a source electrode of the first restoring transistor is electrically connected to a first node, and a drain electrode of the first restoring transistor is electrically connected to a first restoring signal source, wherein the first restoring transistor is an oxide transistor, and the driving transistor and the data writing transistor are polysilicon transistors.Type: GrantFiled: October 12, 2021Date of Patent: September 3, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Chao Dai, Bo Li
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Publication number: 20240290268Abstract: A pixel driving circuit, a driving method thereof, and a display panel are proposed. The pixel driving circuit includes a switching transistor connected between a gate of the driving transistor and the initialization voltage node and between the first electrode of the driving transistor. The active layer of the switching transistor includes an oxide semiconductor with a characteristics of low leakage current. The display quality is improved when the display panel is operated in the low-frequency driving mode for display.Type: ApplicationFiled: May 6, 2024Publication date: August 29, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xuanyun WANG, Chao DAI
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Publication number: 20240279745Abstract: Provided herein are methods and systems for multi-analyte detection of cancer. The methods may comprise assaying multiple nucleic acids to detect a set of biomarkers from samples. The methods may comprise processing the set of biomarkers to determine the presence of a cancer or cancer parameters. The processing may be performed by an algorithm. The algorithm may be a trained algorithm and may be trained on multiple training samples.Type: ApplicationFiled: September 28, 2023Publication date: August 22, 2024Inventors: Pan DU, Binggang XIANG, Chao DAI, Shujun LUO, Shidong JIA
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Publication number: 20240251645Abstract: The present application discloses a display panel and a mobile terminal. The display panel includes a display functional body, a color filter layer, and an ultraviolet absorbing layer. The ultraviolet absorbing layer is disposed on a side of the color filter layer away from the display functional body. The ultraviolet absorbing layer includes a network crosslinking structure and an ultraviolet absorber dispersed within the network crosslinking structure. This solution may reduce influence of ultraviolet rays on organic light emitting layers, and effectively prolong the service life of the display panel.Type: ApplicationFiled: January 10, 2022Publication date: July 25, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Song JIANG, Chao DAI
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Publication number: 20240234577Abstract: A semiconductor device and an electronic device are provided. A through hole is formed in an insulating layer and located on a first active layer. A thin-film transistor layer includes a third active layer. At least part of the third active layer is located on a sidewall of the through hole. One side of the third active layer is connected to a first active layer, and the other side of the third active layer is connected to a second active layer, so that a channel length is reduced, short channel effect is reduced, on-state current is increased, and power consumption is reduced.Type: ApplicationFiled: November 11, 2022Publication date: July 11, 2024Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Zhifu LI, Guanghui LIU, Chao DAI, Fei AI, Dewei SONG, Chengzhi LUO
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Patent number: 12002423Abstract: A pixel driving circuit, a driving method thereof, and a display panel are proposed. The pixel driving circuit includes a switching transistor connected between a gate of the driving transistor and the initialization voltage node and between the first electrode of the driving transistor. The active layer of the switching transistor includes an oxide semiconductor with a characteristics of low leakage current. The display quality is improved when the display panel is operated in the low-frequency driving mode for display.Type: GrantFiled: April 20, 2021Date of Patent: June 4, 2024Inventors: Xuanyun Wang, Chao Dai