Patents by Inventor Dacheng LIU
Dacheng LIU 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: 11997891Abstract: Provided is display substrate, including driving circuit board, and first electrode layer, insulating layer, second electrode layer, isolation layer, transparent conductive layer sequentially stacked thereon. Driving circuit board includes pixel and bonding regions. First electrode layer includes first sub-portion in bonding region and second sub-portion in pixel region. Insulating and isolation layers are partially cover bonding and pixel regions. Insulating layer has first via hole in area corresponding to first sub-portion. Isolation layer has second via hole in the area. Axes of first and second via holes coincide, first sub-portion is exposed at first and second via holes. Second electrode layer is in pixel region, coupled to second sub-portion through third via hole in area corresponding to second sub-portion. Isolation layer has fourth via hole in area corresponding to second electrode layer. Transparent conductive layer is in pixel region, coupled to second electrode layer through fourth via hole.Type: GrantFiled: March 24, 2020Date of Patent: May 28, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Li Liu, Pengcheng Lu, Rongrong Shi, Yuanlan Tian, Xiao Bai, Dacheng Zhang
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Patent number: 11974377Abstract: A system and method for nighttime lighting control and danger monitoring and alarming are provided. The system includes a data acquisition system, an information processing system, and a terminal control system. The data acquisition system is configured to acquire video information in a room and a voice content of a person in the room, and transmit the video information and the voice content to the information processing system; the information processing system is configured to obtain voice command information based on the voice content and age information and safety state information of the person based on the video information, and transmit the voice command information, the age information and the safety state information to the terminal control system; and the terminal control system is configured to control a terminal lighting fixture, and perform capturing of an image of the person and perform voice alarming according to the safety state information.Type: GrantFiled: August 26, 2022Date of Patent: April 30, 2024Assignees: TIANJIN CHENGJIAN UNIVERSITY, XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGYInventors: Bin Yang, Pengju Liu, Yihang Liu, Dacheng Jin, Bingan Pan, Pengfei Yang
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Patent number: 11974472Abstract: A display substrate and a manufacturing method and a display device are provided. The display substrate includes: a base substrate, a first insulation layer, a first electrode pattern, a connecting electrode pattern, a second electrode, a light-emitting functional layer, and a first filling layer. The second electrode is connected with the connecting electrode pattern, the second electrode and the first electrode pattern are spaced apart from each other. The light-emitting functional layer is located between the first electrode pattern and the second electrode. The first filling layer is located between the connecting electrode pattern and the first electrode pattern. The first filling layer and the light-emitting functional layer are different layers; a portion of the first insulation layer that is located between the first electrode pattern and the connecting electrode pattern has a groove, and the first filling layer is at least partially located in the groove.Type: GrantFiled: August 27, 2019Date of Patent: April 30, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yunlong Li, Pengcheng Lu, Kui Zhang, Li Liu, Kuanta Huang, Shengji Yang, Xiaochuan Chen, Dacheng Zhang
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Publication number: 20240122032Abstract: A display substrate including a drive-circuit layer and a light-emitting structure layer, a preparation method thereof, and a display device, the light-emitting structure layer includes an anode, a pixel definition layer, an organic light-emitting layer and a cathode, and an auxiliary electrode and an organic light-emitting block, arranged sequentially, the pixel definition layer includes an anode opening exposing the anode and an electrode opening exposing the auxiliary electrode, the organic light-emitting block is separated from the organic light-emitting layer, the auxiliary electrode includes the first, second and third auxiliary electrodes arranged sequentially; the cathode includes a first horizontal lapping part lapping with the first auxiliary electrode and a second sidewall lapping part lapping with the second auxiliary electrode, the thickness of the second sidewall lapping part in the direction parallel to the substrate is greater than that of the first horizontal lapping part in the direction perType: ApplicationFiled: April 21, 2021Publication date: April 11, 2024Inventors: Qinghe WANG, Bin ZHOU, Tongshang SU, Dacheng ZHANG, Jun WANG, Ning LIU, Yongchao HUANG, Jun CHENG, Liangchen YAN
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Publication number: 20240102963Abstract: Disclosed is an eddy current flaw detection system based on a NV (nitrogen-vacancy) color center quantum sensing technology, relating to the technical field of quantum sensing. The system includes a laser transceiver processing unit, a quantum sensor, an excitation coil, a power supply unit, a microwave coil, and a microwave unit. The diamond NV color center precision measurement technology and the eddy current nondestructive flaw detection technology are combined in accordance with the present disclosure. Compared with the traditional technology, the remarkable performance of the diamond NV color center can improve the accuracy of eddy current nondestructive flaw detection and achieve the accurate detection of fine crack defects. Meanwhile, a detection method for an alternating current magnetic field is designed according to the characteristics of the eddy current nondestructive flaw detection.Type: ApplicationFiled: July 31, 2023Publication date: March 28, 2024Applicant: ANHUI GUOSHENG QUANTUM TECHNOLOGY CO., LTD.Inventors: Shaochun ZHANG, Bowen Zhao, Peng Wang, Dacheng Luo, Zhen Zhang, Xin Liu
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Patent number: 11937446Abstract: A display panel and a manufacture method thereof, and a display apparatus are provided. The display panel has a display region and a border region that surrounds the display region and includes a peripheral circuit region and a peripheral region; the peripheral circuit region is between the display region and the peripheral region. At least a part of a barrier structure of the display panel is in the peripheral circuit region, and the barrier structure includes an organic barrier layer including an opening passing through the organic barrier layer and an inorganic barrier layer covering the organic barrier layer and filling the opening; an extension direction of the opening is same as that of an edge, close to the opening, of the display panel the peripheral circuit is in the peripheral circuit region.Type: GrantFiled: October 21, 2019Date of Patent: March 19, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xinwei Gao, Kaihong Ma, Dacheng Zhang, Lang Liu, Chen Xu
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Patent number: 11937480Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. At least one sub-pixel includes a first transistor, a second transistor and a storage capacitor. The display substrate further includes an extension portion protruding from the gate electrode of the first transistor, and the extension portion is extended from the gate electrode of the first transistor in the second direction; the extension portion is at least partially overlapped with the first electrode of the second transistor in a direction perpendicular to the base substrate and is electrically connected with the first electrode of the second transistor; in the first direction, the extension portion has a second side closest to the second capacitor electrode, and the second side is recessed in a direction away from the second capacitor electrode.Type: GrantFiled: July 20, 2022Date of Patent: March 19, 2024Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Meng Li, Dacheng Zhang, Lang Liu
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Patent number: 11579281Abstract: A method and device for suppressing range ambiguity and a computer readable storage medium are provided. The method includes: determining a pulse timing relationship of a transmission signal; determining orthogonal nonlinear frequency modulation signals; modulating the transmission signal by using the orthogonal nonlinear frequency modulation signals; transmitting the modulated transmission signal according to the pulse timing relationship, and determining echo data of the modulated transmission signal; and generating an image according to a polarization scattering matrix for the echo data of the modulated transmission signal.Type: GrantFiled: February 19, 2020Date of Patent: February 14, 2023Assignee: Institute of Electronics, Chinese Academy of SciencesInventors: Yu Wang, Dacheng Liu, Pengfei Zhao, Yunkai Deng
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Patent number: 11520006Abstract: A method and apparatus for generating a NLFM signal in real time, and a computer storage medium are disclosed, including: determining a signal parameter of a signal according to a system parameter, the signal parameter includes: a signal bandwidth, a signal pulse width and a PSLR; determining a power spectrum density function according to PSLR; calculating the power spectrum density function to obtain a group delay vector; calculating a frequency axial vector according to a system sampling rate; calculating a time axial vector according to the signal pulse width; performing linear interpolation calculation on the group delay vector to obtain an instantaneous frequency vector; integrating the instantaneous frequency vector to obtain a phase vector; determining a signal time domain discrete vector; and generating a digital signal according to the signal time domain discrete vector, and performing digital-to-analog conversion on the digital signal to obtain the NLFM signal.Type: GrantFiled: March 16, 2020Date of Patent: December 6, 2022Assignee: Institute of Electronics Chinese Academy of SciencesInventors: Yu Wang, Kaiyu Liu, Wei Wang, Guodong Jin, Yu Sha, Yunkai Deng, Dacheng Liu, Yajun Long, Yongwei Zhang
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Publication number: 20210003666Abstract: A method and apparatus for generating a NLFM signal in real time, and a computer storage medium are disclosed, including: determining a signal parameter of a signal according to a system parameter, the signal parameter includes: a signal bandwidth, a signal pulse width and a PSLR; determining a power spectrum density function according to PSLR; calculating the power spectrum density function to obtain a group delay vector; calculating a frequency axial vector according to a system sampling rate; calculating a time axial vector according to the signal pulse width; performing linear interpolation calculation on the group delay vector to obtain an instantaneous frequency vector; integrating the instantaneous frequency vector to obtain a phase vector; determining a signal time domain discrete vector; and generating a digital signal according to the signal time domain discrete vector, and performing digital-to-analog conversion on the digital signal to obtain the NLFM signal.Type: ApplicationFiled: March 16, 2020Publication date: January 7, 2021Inventors: Yu WANG, Kaiyu LIU, Wei WANG, Guodong JIN, Yu SHA, Yunkai DENG, Dacheng LIU, Yajun LONG, Yongwei ZHANG
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Publication number: 20200271772Abstract: Please replace the Abstract originally filed with the following: A method and device for suppressing range ambiguity and a computer readable storage medium are provided. The method includes: determining a pulse timing relationship of a transmission signal; determining orthogonal nonlinear frequency modulation signals; modulating the transmission signal by using the orthogonal nonlinear frequency modulation signals; transmitting the modulated transmission signal according to the pulse timing relationship, and determining echo data of the modulated transmission signal; and generating an image according to a polarization scattering matrix for the echo data of the modulated transmission signal.Type: ApplicationFiled: February 19, 2020Publication date: August 27, 2020Inventors: Yu WANG, Dacheng LIU, Pengfei ZHAO, Yunkai DENG