Patents by Inventor Jiaxiang ZHANG

Jiaxiang ZHANG 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: 20200333258
    Abstract: Methods for detecting defects on the surface of a sheet of material include collimating a beam of light and intersecting the collimated beam of light with a beam splitter. The beam splitter directs a first portion of the intersected beam of collimated light to illuminate a first surface of the sheet, wherein a first portion of the light illuminating the first surface is reflected and a second portion of the illuminating light is scattered by a defect. The reflected and scattered light is received with a first lens element that directs the reflected and scattered light to an inverse aperture. The reflected light is blocked by the inverse aperture and the scattered light is transmitted by the inverse aperture. The scattered light transmitted by the inverse aperture is directed with a second lens element to an imaging device.
    Type: Application
    Filed: November 9, 2018
    Publication date: October 22, 2020
    Inventors: Jeffrey Allen Knowles, Correy Robert Ustanik, Jiaxiang Zhang
  • Publication number: 20200090781
    Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Jiaxiang ZHANG, John T. WEN, Agung JULIUS
  • Patent number: 10529440
    Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 7, 2020
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Jiaxiang Zhang, John T. Wen, Agung Julius
  • Publication number: 20190115371
    Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The manufacturing method of the display substrate includes: forming a pattern of first transparent conductive layer, forming a passivation layer and forming a second transparent conductive layer on the passivation layer, forming a pattern of second transparent conductive layer, i.e., a slit electrode, the pattern of second transparent conductive layer including a plurality of sub-electrodes arranged at intervals and located in a display region of the display substrate; and removing a portion of the passivation layer which is in the display region and is not covered by the sub-electrodes, forming a pattern of passivation layer. The second transparent conductive layer is polycrystalline ITO.
    Type: Application
    Filed: March 5, 2018
    Publication date: April 18, 2019
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiaxiang ZHANG, Fengtao WANG, Yanqiang WANG
  • Patent number: 10249734
    Abstract: A poly-silicon thin film transistor and its manufacturing method, an array substrate and its manufacturing method, and a display device are provided. The method for manufacturing a poly-silicon thin film transistor includes forming a poly-silicon layer on a base substrate so that the poly-silicon layer includes a first poly-silicon area, second poly-silicon areas located at the both sides of the first poly-silicon area and third poly-silicon areas located at a side of the second poly-silicon areas away from the first poly-silicon area; forming a barrier layer between a gate electrode and a gate insulation layer by a dry etching method so that the barrier layer corresponds to the first poly-silicon area; and with the barrier layer as a mask doping the second poly-silicon areas to form lightly doped areas. By this method, the lightly doped areas may have the same length, and thus the problem of excessive leakage current is avoided.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 2, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaohui Jiang, Jiaxiang Zhang
  • Patent number: 10192900
    Abstract: Methods for fabricating a thin film transistor and an array substrate, an array substrate and a display device are provided, and the fabrication method of a thin film transistor includes: forming a first photoresist pattern on the active layer film, wherein the first photoresist pattern comprises a photoresist area of a first thickness and a photoresist area in a second thickness; etching the active layer film by using the first photoresist pattern as a mask to form an active layer; ashing the first photoresist pattern to remove the photoresist area of the second thickness and to reduce a thickness of the photoresist area of the first thickness to form the second photoresist pattern. The second photoresist pattern is used as the mask to etch the source-drain electrode thin film.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 29, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jiaxiang Zhang, Kai Lu
  • Patent number: 10128272
    Abstract: Disclosed are a TFT array substrate, a method for fabricating the same and a display device. The TFT array substrate includes a plurality of pixel units, each of the plurality of pixel units includes a common electrode (9). The common electrode (9), is comb-shaped, and includes a plurality of strip electrodes and a plurality of slits. Each of the strip electrodes is configured for reflecting light incident on the strip electrode, and each of the slits is configured for transmitting light incident on the slit. As the comb-shaped common electrode with both a reflective region and a transmissive region is formed through a single patterning process, the fabrication process is simplified and the fabrication cost and difficulty are reduced.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: November 13, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiaxiang Zhang, Jian Guo, Xiaohui Jiang, Changjiang Yan
  • Patent number: 10002889
    Abstract: The present invention provides a low-temperature polysilicon thin film transistor array substrate and a method of fabricating the same, and a display device. The array substrate comprises: a substrate; a polysilicon active layer provided on the substrate; a first insulation layer provided on the active layer; a plurality of gates and a gate line provided on the first insulation layer; a second insulation layer provided on the gates; a source, a drain, a data line and a pixel electrode electrically connected with the drain, which are provided on the second insulation layer, the source covers the plurality of gates. The plurality of gates are provided directly below the source, so that the leakage current is reduced and the aperture ratio of panel is improved.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: June 19, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiaxiang Zhang, Xiaohui Jiang, Changjiang Yan
  • Publication number: 20180166468
    Abstract: Methods for fabricating a thin film transistor and an array substrate, an array substrate and a display device are provided, and the fabrication method of a thin film transistor includes: forming a first photoresist pattern on the active layer film, wherein the first photoresist pattern comprises a photoresist area of a first thickness and a photoresist area in a second thickness; etching the active layer film by using the first photoresist pattern as a mask to form an active layer; ashing the first photoresist pattern to remove the photoresist area of the second thickness and to reduce a thickness of the photoresist area of the first thickness to form the second photoresist pattern. The second photoresist pattern is used as the mask to etch the source-drain electrode thin film.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 14, 2018
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jiaxiang Zhang, Kai Lu
  • Patent number: 9761615
    Abstract: An array substrate, a manufacturing method thereof and a display device are disclosed. The array substrate comprises: a base substrate (1), thin-film transistors (TFTs), an isolation layer (10) and an organic resin layer (8) formed on the base substrate (1), and a common electrode layer (12) formed on the organic resin layer (8). The isolation layer (10) covers source electrodes (6) and drain electrodes (7) of the TFTs; the organic resin layer (8) covers the isolation layer (10) and is provided with first through holes (9) corresponding to the drain electrodes (7) of the TFTs; the isolation layer (10) is provided with second through holes (11) communicated with the first through holes (9) to expose partial drain electrodes (7); and the dimension of the second through holes (11) is greater than that of the first through holes (9).
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: September 12, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaohui Jiang, Changjiang Yan, Jiaxiang Zhang
  • Patent number: 9740053
    Abstract: Embodiments of the disclosure provide an array substrate and a fabrication method thereof, and a display device. The array substrate includes: a base substrate and a switch unit disposed on the base substrate. The array substrate further includes: a passivation layer disposed on the base substrate and a spacer disposed on the passivation layer; and the spacer corresponds to the switch unit.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: August 22, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jiaxiang Zhang
  • Patent number: 9653484
    Abstract: An array substrate and a manufacturing method thereof, a display device, a thin-film transistor (TFT) and a manufacturing method thereof. The array substrate comprises a base substrate and a pixel electrode and a TFT formed on the base substrate. The TFT includes an active layer and a source/drain pattern. The source/drain pattern is connected with the active layer. The pixel electrode is connected with the active layer. The array substrate can improve the aperture ratio of pixels and the chargeability of the TFT.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: May 16, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventor: Jiaxiang Zhang
  • Patent number: 9620578
    Abstract: An array substrate, a manufacture method of the array substrate, and a display panel are configured to achieve a combination of solar energy technology and the OLED display technology. The array substrate includes substrate, scanning lines, data lines, a thin film transistor (TFT), a common electrode and a pixel electrode. The array substrate further includes a light-emitting structure configured to provide a backlight source, a solar cell structure and a power output line. The light-emitting structure is provided between the common electrode and the pixel electrode. The solar cell structure is provided between the substrate and the common electrode. The power output line is provided in a same layer as the common electrode and is electrically connected to the solar cell structure so as to transmit electric energy generated by the solar cell structure to an external circuit.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 11, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jiaxiang Zhang, Jian Guo, Xu Chen
  • Patent number: 9583508
    Abstract: The present invention discloses an array substrate, a preparation method for the array substrate, and a display device, wherein the array substrate comprises a gate electrode, a gate insulation layer, an active layer, a source electrode and a drain electrode, and a pixel electrode arranged on a substrate, the active layer includes an electric conduction area, a coverage area covered by the source electrode and the drain electrode, and an exposure area surrounding the coverage area, and the pixel electrode is lapped on the upper surfaces of the drain electrode, the exposure area of the active layer, and the gate insulation layer. According to the present invention, the pixel electrode breaks in the area, with the large gradient angle, of the drain electrode caused by slip-down due to gravity can be avoided, and the lap joint for the pixel electrode and the drain electrode is effectively facilitated.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 28, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS CO., LTD.
    Inventors: Xiaohui Jiang, Jian Guo, Jiaxiang Zhang, Zongmin Tian
  • Patent number: 9570629
    Abstract: The embodiments of the present invention provide a thin film transistor including a gate, an upper active layer, a lower active layer, an upper source, a lower source, an upper drain and a lower drain. The upper active layer and the lower active layer are disposed at an upper side and a lower side of the gate, respectively, the lower source and the lower drain are connected to the lower active layer, respectively, and the upper source and the upper drain are connected to the upper active layer, respectively. The embodiments of the present invention also provide an array substrate including the thin film transistor, a method of fabricating the array substrate, and a display device including the array substrate.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: February 14, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS
    Inventors: Jiaxiang Zhang, Jian Guo, Xiaohui Jiang
  • Patent number: 9543324
    Abstract: An array substrate, a display device and a manufacturing method of the array substrate. The array substrate includes: a base substrate (1) and a plurality of pixel units located on the base substrate (1), each of the pixel units including a thin film transistor unit. The thin film transistor unit includes: a gate electrode located on the base substrate (1), a gate insulating layer (3) located on the gate electrode, an active layer (4) located on the gate insulating layer (3) and opposed to the gate electrode in position, an ohmic layer (5) located on the active layer (4), a source electrode (6a) and a drain electrode (6b) that are located on the ohmic layer (5) and a resin passivation layer (8) that are located on the source electrode (6a) and the drain electrode (6b) and covers the substrate.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: January 10, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Changjiang Yan, Jiaxiang Zhang, Jian Guo, Zhenyu Xie, Xu Chen
  • Patent number: 9530808
    Abstract: A method of manufacturing a TFT array substrate and a TFT array substrate and a display device are provided. During a pattern of a gate layer (2), a pattern of the gate insulating layer (3) and a pattern of the active layer are made, a gate layer (2) material, a gate insulating layer (3) material and an active layer material are deposited successively. The gate layer (2), the gate insulating layer (3) and the active layer are made through one patterning process. At least one mask process is saved and the process complexity is reduced.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: December 27, 2016
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiaohui Jiang, Jiaxiang Zhang
  • Patent number: 9513752
    Abstract: An embodiment of the present application discloses a capacitive touch panel including a base substrate, on which a plurality of transparent conductive patters being capable of transmitting touch signals and not overlapping with each are provided, and each transparent conductive pattern is an integrated pattern made of a same material layer. An embodiment of the present application further provides a method for manufacturing a capacitive touch panel, which includes forming a plurality of transparent conductive patterns on a base substrate through one mask patterning process. An embodiment of the present application further includes a display device comprising the capacitive touch panel as described above. An embodiment of the present application can save masks and can manufacture capacitive touch panels at a low cost. Furthermore, the embodiments of the present application have advantages of high production efficiency and of high yield rate.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: December 6, 2016
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiaxiang Zhang, Xiaohui Jiang, Jian Guo, Xu Chen
  • Publication number: 20160322404
    Abstract: Embodiments of the present disclosure provide a method for producing a TFT array substrate and a method for producing a display apparatus. The method for producing the TFT array substrate includes forming a semiconductor layer onto a substrate, and forming a shading pattern onto the semiconductor layer at a position at least corresponding to a channel region of the semiconductor layer, wherein the shading pattern contacts with the semiconductor layer; forming a transparent electrode of ITO material onto the substrate formed with the shading pattern, and removing the shading pattern after forming the transparent electrode.
    Type: Application
    Filed: March 28, 2016
    Publication date: November 3, 2016
    Inventors: Xiaohui Jiang, Jiaxiang Zhang
  • Patent number: 9484364
    Abstract: An array substrate and a display device are presented. The array substrate includes: a base substrate and a plurality of thin film transistor units located on the base substrate, wherein, the thin film transistor unit includes: a first gate electrode located on the base substrate, a gate insulating layer located on the first gate electrode, a drain electrode disposed in the same layer as the first gate electrode, an active layer located on the drain electrode, a source electrode located on the active layer, a first transparent conductive layer is provided between the base substrate and the first gate electrode and the drain electrode that are disposed in the same layer, and the gate insulating layer is also disposed between the first gate electrode plus the first transparent conductive layer beneath it and the drain electrode plus the first transparent conductive layer beneath it.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: November 1, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jing Li, Wenyu Zhang, Jiaxiang Zhang