Patents by Inventor Wenpeng Chen

Wenpeng Chen 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: 20240363084
    Abstract: A method for driving a display panel, a display drive device, and a display device. The method includes, during a data refresh stage of at least one display frame, loading a gate turn-on voltage to a gate line, and loading, on each data line, a data voltage of an image to be displayed, so that each sub-pixel inputs a corresponding data voltage, and during a blanking time period, loading a gate turn-off voltage to a gate line, and loading a compensation voltage to each data line. When a data voltage in a sub-pixel connected to a data line is greater than a common electrode voltage, a compensation voltage is less than the data voltage in the sub-pixel connected to the data line, and/or when the data voltage in the sub-pixel is less than the common electrode voltage, the compensation voltage is greater than the data voltage in the sub-pixel.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 31, 2024
    Inventors: Yuhang TIAN, Yanping LIAO, Dongchuan CHEN, Shulin YAO, Yingmeng MIAO, Yinlong ZHANG, Pengfei HU, Wenpeng MA, Zheng ZHANG, Jiantao LIU
  • Publication number: 20240321230
    Abstract: A display apparatus includes sub-pixels, at least one gate line group and a scan drive circuit. The gate line group includes a first gate line, a second gate line and a third gate line. The scan drive circuit outputs, in a frame scan cycle, a first scan signal to the first gate line, a second scan signal to the second gate line, and a third scan signal to the third gate line in sequence. Durations of effective scan periods of the scan signals are equal. A start moment of the effective scan period of the second scan signal is delayed by a first time length compared with that of the first scan signal. A start moment of the effective scan period of the third scan signal is delayed by a second time length less than the first time length compared with that of the second scan signal.
    Type: Application
    Filed: July 27, 2022
    Publication date: September 26, 2024
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenpeng MA, Yinlong ZHANG, Shulin YAO, Yingmeng MIAO, Pengfei HU, Yuhang TIAN, Zheng ZHANG, Yanping LIAO, Dongchuan CHEN, Jiantao LIU
  • Publication number: 20240296775
    Abstract: A driving circuit, a display device, and a driving method are disclosed. The driving circuit includes a level conversion unit and a gate electrode driving unit; and the gate electrode driving unit is configured to sequentially shift and output a plurality of first gate scan signals by a first portion of the 2n gate signal output terminals in response to a first portion of the plurality of first output signals received at a first moment by a first portion of the plurality of second clock signal input terminals, and sequentially output a plurality of second gate scan signals by a second portion of the 2n gate signal output terminals in response to a second portion of the plurality of first output signals received at a second moment by a second portion of the plurality of second clock signal input terminals.
    Type: Application
    Filed: March 30, 2022
    Publication date: September 5, 2024
    Applicants: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenpeng MA, Shulin YAO, Yanping LIAO, Panhui ZHAO, Dongchuan CHEN, Pengfei HU, Zheng ZHANG, Yingmeng MIAO
  • Publication number: 20240270879
    Abstract: The present application provides a catalyst for copolymerization of ethylene and methyl methacrylate and an application thereof. The catalyst includes a main catalyst, and the main catalyst is obtained by compounding a compound of formula (I) and a compound of formula (II); a mole ratio of the compound of formula (I) to the compound of formula (II) is (1:49) to (49:1). The catalyst has an excellent catalytic activity, and a copolymer of ethylene and methyl methacrylate with a high molecular weight can be obtained, with a weight average molecular weight of not less than 1×105 g/mol.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 15, 2024
    Inventors: Qian CHEN, Danfeng ZHANG, Jincheng LIU, Maoyu ZHAO, Meng GAO, Jian CUI, Xianming XU, Ben NIU, Wenpeng LI, Yonggang JI
  • Publication number: 20240265885
    Abstract: Provides are a drive method of a display panel and a display apparatus. The drive method of the display panel includes: obtaining a current temperature of the display panel; obtaining a current overdrive lookup table corresponding to the current temperature according to the current temperature and initial overdrive lookup tables corresponding to prestored set temperatures, wherein the initial overdrive lookup tables include a plurality of different first gray-scale values, a plurality of different second gray-scale values and initial gray-scale values corresponding to any first gray-scale value and any second gray-scale value, and the current overdrive lookup table includes a plurality of different first gray-scale values, a plurality of different second gray-scale values and current gray-scale values corresponding to any first gray-scale value and any second gray-scale value; and driving sub-pixels in the display panel to charge corresponding data voltages according to the current overdrive lookup table.
    Type: Application
    Filed: April 15, 2022
    Publication date: August 8, 2024
    Inventors: Pengfei HU, Jianhua HUANG, Dongchuan CHEN, Yingying QU, Shulin YAO, Yue YANG, Wenpeng MA, Zheng ZHANG
  • Patent number: 6045888
    Abstract: An optical memory material includes a two-photon storage component which can be written from a first to a second state in response to WRITE light, mixed with a signal component which fluoresces by one-photon absorption only at the written locations in response to READ light. The storage material may be a fulgide. The memory material may also include a frequency upconversion material to aid writing. Writing is performed by a spatial light modulator (SLM) with a dynamic focussing system, for concentrating sufficient power at WRITE locations for nonlinear two-photon absorption. Crosstalk is avoided during simultaneous writing in some embodiments, by spacing the individual WRITE beams apart by an integer number of inter-beam spacings, so that non-adjacent datels are written simultaneously in a "paragraph," and the non-written areas are written at a different time with different paragraphs.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 4, 2000
    Assignee: Lockheed Martin Corporation
    Inventors: Wenpeng Chen, Shekhar Guha, Terrance L. Worchesky, Kenneth J. Ritter, Maher E. Tadros, Keith Kang
  • Patent number: 5472759
    Abstract: An optical memory material includes a two-photon storage component which can be written from a first to a second state in response to WRITE light, mixed with a signal component which fluoresces by one-photon absorption only at the written locations in response to READ light. The storage material may be a fulgide. The memory material may also include a frequency upconversion material to aid writing. Writing is performed by a spatial light modulator (SLM) with a dynamic focussing system, for concentrating sufficient power at WRITE locations for nonlinear two-photon absorption. Crosstalk is avoided during simultaneous writing in some embodiments, by spacing the individual WRITE beams apart by an integer number of inter-beam spacings, so that non-adjacent datels are written simultaneously in a "paragraph," and the non-written areas are written at a different time with different paragraphs.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: December 5, 1995
    Assignee: Martin Marietta Corporation
    Inventors: Wenpeng Chen, Shekhar Guha, Terrance L. Worchesky, Kenneth J. Ritter, Maher E. Tadros, Keith Kang
  • Patent number: 5018842
    Abstract: An optical power limiter and switch, transparent at low light intensity and opaque at high intensity, is comprised of a pair of right triangular prisms separated by a liquid film whose refractive index changes in response to optical energy. A first or input lens focuses the light upon the liquid film at an angle less than the critical angle of total reflection of the prism-liquid interface and a second or output lens refocuses the energy to a detector through an aperture. When the intensity of the optical energy reaches a first predetermined level, the optical energy is defocused and diverted from the detector. When the intensity of the optical energy reaches a second predetermined higher level, the critical angle is achieved whereupon the optical energy is reflected away from the interface rather than through it.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: May 28, 1991
    Assignee: Martin Marietta Corporation
    Inventor: Wenpeng Chen
  • Patent number: 4879479
    Abstract: The present invention relates to a device for optical switching, frequency conversion, and protection of sensory organs and optical and electronic sensors which comprises at least one layer comprising a polymerized transition metal poly-yne.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: November 7, 1989
    Assignee: Martin Marietta Corporation
    Inventors: Claude C. Frazier, Shekhar Guha, Wenpeng Chen
  • Patent number: 4617532
    Abstract: A semiconductor device is optically phase-locked by utilizing (1) the Burstein shift in differently doped semiconductor layers and injecting light having an energy level lower than the absorption edge of the heavily doped layer in which optical absorption is not desired and higher than the more lightly doped region where it is desired; and (2) the internal photoemission and injecting light having an energy level lower than the band gap of the semiconductor.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: October 14, 1986
    Assignee: Martin Marietta Corporation
    Inventors: Wenpeng Chen, Norman E. Byer