Patents by Inventor Zhenqiang Ma

Zhenqiang Ma 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).

  • Publication number: 20210343618
    Abstract: Flexible transistors and electronic circuits incorporating the transistors are provided. The flexible transistors promote heat dissipation from the active regions of the transistors while preserving their mechanical flexibility and high-frequency performance. The transistor designs utilize thru-substrate vias (TSVs) beneath the active regions of thin-film type transistors on thin flexible substrates. To promote rapid heat dissipation, the TSVs are coated with a material having a high thermal conductivity that transfers heat from the active region of the transistor to a large-area ground.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 4, 2021
    Inventors: Zhenqiang Ma, Huilong Zhang, Shaoqin Gong
  • Patent number: 11158287
    Abstract: Embodiments of the present disclosure provide a system for display. The system includes a display having a plurality of pixels, a processor, and a control logic. The processor includes a graphics pipeline configured to generate a plurality of pieces of pixel data for the plurality of pixels and a pre-processing module configured to generate a plurality of pieces of compensation data for the pixel data and compress the compensation data. The compensation data is compressed by determining a plurality of pieces of quantified down-sampled compensation data based on the compensation data, converting the quantified down-sampled compensation data into M units of index data, and converting the M units of index data into M code streams. The control logic is operatively coupled to the display and the processor and includes a post-processing module configured to decompress the compressed compensation data based on the M code streams to provide control signals.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: October 26, 2021
    Assignee: SHENZHEN YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Yongwen Jiang, Haining Xu, Jingfeng Wang, Mengya Shen, Yajun Cao, Haopeng Lian, Zhenqiang Ma
  • Publication number: 20210287624
    Abstract: Embodiments of the present disclosure provide a system for display. The system includes a display having a plurality of pixels, a processor, and a control logic. The processor includes a graphics pipeline configured to generate a plurality of pieces of pixel data for the plurality of pixels and a pre-processing module configured to generate a plurality of pieces of compensation data for the pixel data and compress the compensation data. The compensation data is compressed by determining a plurality of pieces of quantified down-sampled compensation data based on the compensation data, converting the quantified down-sampled compensation data into M units of index data, and converting the M units of index data into M code streams. The control logic is operatively coupled to the display and the processor and includes a post-processing module configured to decompress the compressed compensation data based on the M code streams to provide control signals.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 16, 2021
    Applicant: Shenzhen Yunyinggu Technology Co., Ltd.
    Inventors: Yongwen Jiang, Haining Xu, Jingfeng Wang, Mengya Shen, Yajun Cao, Haopeng Lian, Zhenqiang Ma
  • Patent number: 11109486
    Abstract: The present invention provides flexible devices, such as integrated circuits, having a multilevel electronic device structure including two or more electronic components. The electronic components within the structure are electrically connected by an interconnect structure having multiple interconnect levels. In addition to the multilevel electronic device structure, the flexible devices include an elastomeric material disposed around the interconnect levels, including within the spaces between the interconnect levels.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 31, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Guoxuan Qin, Namki Cho
  • Publication number: 20210179520
    Abstract: The present invention relates to a synthesis method and synthesis reactor of high-selectivity 2-methylallyl chloride by taking isobutylene and chlorine gas as raw materials and performing a gas-phase chlorination reaction in a microchannel reactor with a cooling surface. The isobutylene and the chlorine gas are reacted in a T-shaped microchannel reactor, and the mixing speed is extremely fast. Meanwhile, the huge heat exchange area per unit volume can ensure that the reaction proceeds stably at a substantially constant temperature and has good controllability. Therefore, side reactions caused by excessive local temperature can be effectively suppressed, the reaction selectivity is high, and no coking phenomenon occurs.
    Type: Application
    Filed: October 10, 2018
    Publication date: June 17, 2021
    Applicants: ZHEJIANG UNIVERSITY, ZHEJIANG HUANGMA TECHNOLOGY CO., LTD.
    Inventors: Hong YIN, Zhirong CHEN, Xinrong WANG, Weisong WANG, Yuanrong YU, Shengli WANG, Yuefen WANG, Zhenqiang MA, Xingjun ZHAO, Jianfang QIAN
  • Publication number: 20210143262
    Abstract: Patterning methods for forming patterned device substrates are provided. Also provided are devices made using the methods. The methods utilize photoresist features have re-entrant profiles to form a secondary metal hard mask that can be used to pattern an underlying device substrate.
    Type: Application
    Filed: December 16, 2020
    Publication date: May 13, 2021
    Inventors: Zhenqiang Ma, Yei Hwan Jung
  • Patent number: 10950190
    Abstract: The present disclosure provides a method for determining an overdrive mapping correlation in a display panel. The method includes the following steps. First, a repeating subpixel arrangement is determined. The subpixel arrangement includes at least three sets of subpixels in the display panel. An ideal luminance value of a pattern of the subpixel arrangement is then determined. The pattern includes at least a first set of subpixels displaying a zero pixel value, a second set of subpixels displaying a first nonzero pixel value, and a third set of subpixels displaying a second nonzero pixel value, the first, second and third sets of subpixels respectively arranged one after another. The first nonzero pixel value may be different from the second nonzero gray scale value. An actual luminance value of the pattern of the subpixel arrangement is then determined. An overdrive pixel value is further determined.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: March 16, 2021
    Assignee: SHENZHEN YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Yaoming Lin, Guoqiang Mei, Yongwen Jiang, Wenguang Yang, Yan Lin, Zhenqiang Ma, Yuan Zi
  • Publication number: 20210055434
    Abstract: Micrometer-scale x-ray photodetectors that utilize a flexible array of photodiodes wrapped around the circumference of a scintillator core are provided. The photodetectors use dense and flexible pixelated arrays of photodiodes disposed around the circumference of a crystalline scintillator to provide highly compact photodetectors with high spatial, temporal, and energy resolution.
    Type: Application
    Filed: August 26, 2020
    Publication date: February 25, 2021
    Inventors: Zhenqiang Ma, Zhenyang Xia
  • Patent number: 10903329
    Abstract: Patterning methods for forming patterned device substrates are provided. Also provided are devices made using the methods. The methods utilize photoresist features have re-entrant profiles to form a secondary metal hard mask that can be used to pattern an underlying device substrate.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: January 26, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Yei Hwan Jung
  • Patent number: 10891897
    Abstract: The present disclosure provides methods and systems for estimating and compensating the aging of light emitting elements in a display panel. In one example, a method for compensating aging of light emitting elements in a display panel is disclosed. A luminance target is determined based on historical luminance losses of a plurality of light emitting elements in the display panel. An adjusted luminance loss of one of the plurality of light emitting elements is determined based on a current and a luminance loss of the light emitting element. A compensation factor of the light emitting element is determined based on the adjusted luminance loss of the light emitting element and the luminance target. A compensated current is provided to the light emitting element based on the current and the compensation factor of the light emitting element.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 12, 2021
    Assignee: SHENZHEN YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Haining Xu, Yaoming Lin, Shike Wu, Yajun Cao, Yan Lin, Zhenqiang Ma
  • Publication number: 20200357336
    Abstract: The present disclosure provides methods and systems for estimating and compensating the aging of light emitting elements in a display panel. In one example, a method for compensating aging of light emitting elements in a display panel is disclosed. A luminance target is determined based on historical luminance losses of a plurality of light emitting elements in the display panel. An adjusted luminance loss of one of the plurality of light emitting elements is determined based on a current and a luminance loss of the light emitting element. A compensation factor of the light emitting element is determined based on the adjusted luminance loss of the light emitting element and the luminance target. A compensated current is provided to the light emitting element based on the current and the compensation factor of the light emitting element.
    Type: Application
    Filed: December 10, 2019
    Publication date: November 12, 2020
    Inventors: Haining Xu, Yaoming Lin, Shike Wu, Yajun Cao, Yan Lin, Zhenqiang Ma
  • Patent number: 10825375
    Abstract: The present disclosure provides a method for determining a grayscale mapping correlation in a display panel. The method includes the following operations. First, a target first luminance value of the display panel is determined. A first set of start pixel values of a first attribute of a first grayscale value is determined based on the first grayscale value and the target first luminance value of the display panel. A first set of mapped pixel values of the first attribute mapped to the first grayscale value, and a first mapped luminance value are then determined based on the first set of start pixel values of the first attribute and a set of first target values of a second attribute. The set of first target values of the second attribute include a plurality of target chrominance values and the target first luminance value.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: November 3, 2020
    Assignee: SHENZHEN YUNYINGGU TECHNOLOGY CO., LTD.
    Inventors: Yaoming Lin, Guoqiang Mei, Yongwen Jiang, Wenguang Yang, Yan Lin, Zhenqiang Ma, Yuan Zi
  • Publication number: 20200335026
    Abstract: The present disclosure provides a method for determining a grayscale mapping correlation in a display panel. The method includes the following operations. First, a target first luminance value of the display panel is determined. A first set of start pixel values of a first attribute of a first grayscale value is determined based on the first grayscale value and the target first luminance value of the display panel. A first set of mapped pixel values of the first attribute mapped to the first grayscale value, and a first mapped luminance value are then determined based on the first set of start pixel values of the first attribute and a set of first target values of a second attribute. The set of first target values of the second attribute include a plurality of target chrominance values and the target first luminance value.
    Type: Application
    Filed: December 10, 2019
    Publication date: October 22, 2020
    Inventors: Yaoming Lin, Guoqiang Mei, Yongwen Jiang, Wenguang Yang, Yan Lin, Zhenqiang Ma, Yuan Zi
  • Publication number: 20200312256
    Abstract: The present disclosure provides a method for determining an overdrive mapping correlation in a display panel. The method includes the following steps. First, a repeating subpixel arrangement is determined. The subpixel arrangement includes at least three sets of subpixels in the display panel. An ideal luminance value of a pattern of the subpixel arrangement is then determined. The pattern includes at least a first set of subpixels displaying a zero pixel value, a second set of subpixels displaying a first nonzero pixel value, and a third set of subpixels displaying a second nonzero pixel value, the first, second and third sets of subpixels respectively arranged one after another. The first nonzero pixel value may be different from the second nonzero gray scale value. An actual luminance value of the pattern of the subpixel arrangement is then determined. An overdrive pixel value is further determined.
    Type: Application
    Filed: December 10, 2019
    Publication date: October 1, 2020
    Inventors: Yaoming Lin, Guoqiang Mei, Yongwen Jiang, Wenguang Yang, Yan Lin, Zhenqiang Ma, Yuan Zi
  • Patent number: 10777700
    Abstract: Optoelectronic devices that use very thin single-crystalline inorganic semiconductor films as phonon-absorbing layers in combination with non-lattice optical cavities are provided.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 15, 2020
    Assignees: Wisconsin Alumni Research Foundation, The Research Foundation for the State University of New York
    Inventors: Zhenqiang Ma, Zhenyang Xia, Qiaoqiang Gan, Haomin Song, Zongfu Yu, Ming Zhou
  • Patent number: 10749062
    Abstract: Tandem solar cells comprising two or more solar cells connected in a solar cell stack via pn diode tunnel junctions and methods for fabricating the tandem solar cells using epitaxial lift off and transfer printing are provided. The tandem solar cells have improved tunnel junction structures comprising a current tunneling layer integrated between the p and n layers of the pn diode tunnel junction that connects the solar cells.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: August 18, 2020
    Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
    Inventors: Zhenqiang Ma, Kanglin Xiong, Hongyi Mi, Tzu-Hsuan Chang, Shaoqin Gong, Jung-Hun Seo
  • Patent number: 10734537
    Abstract: Radiation detectors based on high electron mobility transistors (HEMTs) are provided. Methods for detecting ultraviolet radiation using the HEMTs are also provided. The transistors are constructed from an intrinsic high bandgap semiconductor material with a built-in polarization field sandwiched between graphene and a two-dimensional electron gas (2DEG).
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 4, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Tzu-Hsuan Chang
  • Patent number: 10649240
    Abstract: Switches for electromagnetic radiation, including radiofrequency switches and optical switches, are provided. Also provided are methods of using the switches. The switches incorporate layers of high quality VO2 that are composed of a plurality of connected crystalline VO2 domains having the same crystal structure and orientation.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: May 12, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Chang-Beom Eom, Jaeseong Lee, Daesu Lee, Sang June Cho, Dong Liu
  • Patent number: 10629800
    Abstract: Power generators that incorporate porous electric generation layers composed of mechanoradical-forming polymers are provided. Also provided are methods for using the generators to convert mechanical energy into and electrical signal to power electronic devices. The porous electric generation material includes an organic polymer that forms free radicals when covalent bonds are homolytically ruptured upon the application of a compressive force to the porous structure.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: April 21, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Shaoqin Gong, Qifeng Zheng, Zhenqiang Ma, Yanfeng Tang
  • Patent number: 10615574
    Abstract: Superlattice structures composed of single-crystal semiconductor wells and amorphous barriers are provided. Also provided are methods for fabricating the superlattice structures and electronic, optoelectronic, and photonic devices that include the superlattice structures. The superlattice structures include alternating quantum barrier layers and quantum well layers, the quantum barrier layers comprising an amorphous inorganic material and the quantum well layers comprising a single-crystalline semiconductor.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: April 7, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Munho Kim, Jung-Hun Seo, Sang June Cho