Patents by Inventor Jianfeng Yuan

Jianfeng Yuan 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: 20160164276
    Abstract: The present disclosure provides an overheat protection device, an overheat protection method and an electrical device. The overheat protection device is used in an electrical device and includes a transparent window unit and an optically-controlled switch. The transparent window unit is made of a transparent material and arranged on a housing of the electrical device, and an inner surface of the transparent window unit is coated with a thermochromatic material film. The optically-controlled switch is arranged inside the housing of the electrical device and exposed to an ambient light beam through the transparent window unit. The optically-controlled switch is configured to turn off the electrical device when a spectrum of the received light beam is within a predetermined spectral range.
    Type: Application
    Filed: July 21, 2015
    Publication date: June 9, 2016
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiannan ZHANG, Bin FENG, Jianfeng YUAN
  • Patent number: 9360724
    Abstract: An array substrate and a display device are provided. The array substrate comprises: a plurality of gate lines arranged in parallel, a plurality of common electrode lines and a common electrode signal line which is disposed in a non-display region on the array substrate. Each of the gate lines corresponds to one common electrode line. Each of the common electrode lines is electrically connected with the common electrode signal line through a corresponding signal line through-hole region. The signal line through-hole region is provided with at least one identification through hole, the signal line through-hole region is configured for indicating a number according to a position of the identification through hole. The array substrate can reduce the frame width of the display device.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: June 7, 2016
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Xi Chen, Xiaoxiang Zhang, Jianfeng Yuan
  • Patent number: 9281282
    Abstract: A substrate capable of electrostatic self-protection and a manufacturing method thereof, and the substrate (1) comprises: a panel area (2); and a first gate metal layer (3) and a source/drain metal layer (5) disposed on at least one side of the panel area (2). The first gate metal layer (3) and the source/drain metal layer (5) are arranged parallel to each other in a longitudinal direction and adjacent to each other; at least one tip (31) is protruded from the first gate metal layer (3) towards the source/drain metal layer (5); and/or at least one tip (31) is protruded from the source/drain metal layer (5) towards the first gate metal layer (3).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: March 8, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO. LTD.
    Inventors: Xi Chen, Yuchun Feng, Jianfeng Yuan
  • Patent number: 9261779
    Abstract: An auto-repairing photoresist composition comprises 1 to 10 wt % of microcapsule having a capsule wall and a capsule core based on the total weight of the photoresist composition, wherein the capsule wall includes an alkali-insoluble resin, and the capsule core includes: 10 to 60 wt % of a photo-curable unsaturated resin oligomer; 10 to 50 wt % of a photo-curable monomers; 10 to 70 wt % of a first black pigment paste; 0.1 to 10 wt % of a first photo-initiator; and 0.1 to 5 wt % of a coupling agent, based on the total weight of the capsule core. The photoresist composition of embodiments of the present invention can be used for preparation of Black Matrix, and has an auto-repairing property to improve substantially the pass yield of product. A method of preparing the photoresist composition, a color filter substrate, and a display apparatus are also disclosed.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 16, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tonghua Yang, Hongjiang Wu, Changgang Huang, Jianfeng Yuan
  • Publication number: 20160041442
    Abstract: An array substrate and a display device are provided. The array substrate comprises: a plurality of gate lines arranged in parallel, a plurality of common electrode lines and a common electrode signal line which is disposed in a non-display region on the array substrate. Each of the gate lines corresponds to one common electrode line Each of the common electrode lines is electrically connected with the common electrode signal line through a corresponding signal line through-hole region. The signal line through-hole region is provided with at least one identification through hole, the signal line through-hole region is configured for indicating a number according to a position of the identification through hole. The array substrate can reduce the frame width of the display device.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 11, 2016
    Inventors: Xi CHEN, Xiaoxiang ZHANG, Jianfeng YUAN
  • Publication number: 20160043103
    Abstract: The invention discloses an array substrate, a color substrate, and manufacturing methods thereof, a display panel and a display device. The array substrate includes a plurality of gate lines and a plurality of data lines provided on a first base substrate to be intersected with each other, the gate lines and the data lines define a plurality of pixel units and at least part of the pixel units each provided therein with a first electrode, when the plurality of gate lines are sequentially scanned, the first electrode is loaded with a first voltage signal and a region corresponding to the first electrode is in a transparent state, and when the plurality of gate lines are reversely scanned, the first electrode is loaded with a second voltage signal, and a region corresponding to the first electrode is in a non-transparent state. The invention realizes a high switchover efficiency.
    Type: Application
    Filed: May 7, 2014
    Publication date: February 11, 2016
    Inventors: Huabin CHEN, Jianfeng YUAN
  • Publication number: 20160026319
    Abstract: A password input device includes: at least two mutually separate touch display screens; a controller configured to control the touch display screen to randomly display characters; and a processor configured to determine the characters currently displayed on corresponding touch display screens subjected to a touch operation after detecting the touch operation, determine a character string inputted by a user according to a sequence of the touch operation, and take the character string as a password inputted by the user. The password input device can adopt a flexible overall arrangement mode of the character string for the password and improve the security of password input. A password input method is further disclosed.
    Type: Application
    Filed: April 22, 2014
    Publication date: January 28, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jiannan ZHANG, Jianfeng YUAN, Seung Moo RIM
  • Patent number: 9229286
    Abstract: According to one aspect of the present invention, the provided is an array substrate. Specifically, the first conductive strip that is coupled to the first data shorting bar and the second conductive strip that is coupled to the second data shorting bar are formed on the array substrate. The width of the first conductive strip is greater than the width of the first data shorting bar. The width of the second conductive strip is greater than the width of the second data shorting bar. The first conductive strip is overlapped with the second conductive strip. Such a structure of the array substrate effectively increases the overlapped capacitance between the data metal layer and the gate metal layer.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 5, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xiaming Zhu, Liang Sun, Jianfeng Yuan, Seung Moo Rim, Xibin Shao
  • Publication number: 20150370163
    Abstract: A grayscale mask plate and method of fabricating the same, a color film substrate and method of fabricating the same, and a display device are disclosed. The grayscale mask plate comprises a transparent substrate and a light blocking layer on the transparent substrate. The light blocking layer comprises an exposure region with an optical translucent film which has a light blocking ratio decreasing gradually or stepwise from a center of the optical translucent film to an edge of the optical translucent film. As a result, the intensity of light transmitted through the exposure region is uniform, such that a post spacer fabricated by the grayscale mask plate has a relatively flat top face. Thus, the post spacer exhibits a linear variation in its hardness under the action of an external force.
    Type: Application
    Filed: September 29, 2014
    Publication date: December 24, 2015
    Inventors: Hongjiang Wu, Jianfeng Yuan, Min Li
  • Publication number: 20150371029
    Abstract: The present disclosure discloses an anti-peeping display system includes an anti-peeping display, anti-peeping glasses and a controller. The anti-peeping display includes a first polarizer and a first driving device driving the first polarizer to rotate. The anti-peeping glasses include a second polarizer and a second driving device driving the second polarizer to rotate. When judging that both of the obtained display password and the obtained glasses password are correct, the controller is configured to control the first polarizer and the second polarizer to rotate at a same angular velocity; otherwise, control the first driving device and the second driving device to rotate at different angular velocities.
    Type: Application
    Filed: September 26, 2014
    Publication date: December 24, 2015
    Inventors: Xiaoguang LI, Jianfeng YUAN, Hongjiang WU, Jingjing JIANG, Yu XIAO, Min LI
  • Publication number: 20150328647
    Abstract: The present disclosure provides a spraying device and a coating method. The spraying device comprises a first spray unit and a second spray unit. The first spray unit is configured to spray a first solution for wetting a surface of a substrate, and the second spray unit is configured to spray a second solution for coating the surface of the substrate. During spraying, the second spray unit and the first spray unit advance in the same direction and the second spray unit is arranged behind the first spray unit in the advancing direction. In the present disclosure, the coated liquid diffuses across the surface of the substrate more quickly and uniformly, the alignment film formed on the surface of the substrate has a uniform thickness, thus avoiding mura due to an alignment film with a non-uniform thickness and improving quality of the display panel.
    Type: Application
    Filed: October 29, 2014
    Publication date: November 19, 2015
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY GROUP CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: KUI LIANG, BIN FENG, JIANFENG YUAN
  • Patent number: 9176053
    Abstract: The embodiments of the present invention provide a method for detecting an etching residue and relate to the field of display technologies, with the purpose of detecting an etching residue so as to improve product yield. The method comprises: fitting the boundary of a pattern in a position to be detected by film color difference, and positioning the pattern in a position to be detected, thereby acquiring the pattern in a position to be detected; testing an infrared spectrum of the pattern in a position to be detected, and obtaining an infrared spectrogram; determining whether the residue exists according to the infrared spectrogram. The method of the invention may be applicable for the detection of an etching residue during the process of preparing an array substrate or a cell substrate.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: November 3, 2015
    Assignees: BOE TECHNOLOGY GROUP CO., LTD, BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Linlin Wang, Xi Chen, Shoukun Wang, Jianfeng Yuan
  • Publication number: 20150311225
    Abstract: Disclosed are an array substrate, a manufacture method thereof, and a display device.
    Type: Application
    Filed: July 30, 2014
    Publication date: October 29, 2015
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongjiang WU, Jianfeng YUAN
  • Publication number: 20150300950
    Abstract: A method for detecting an etching residue is provided, comprising fitting a boundary of a pattern in a position to be detected by color difference of film layers, and positioning the pattern in the position to be detected, and acquiring the pattern in the position to be detected; testing the pattern in the position to be detected by an infrared spectroscopy, and obtaining an infrared spectrogram; and determining whether there exists the residue according to the infrared spectrogram.
    Type: Application
    Filed: August 9, 2013
    Publication date: October 22, 2015
    Inventors: Linlin WANG, Xi CHEN, Shoukun WANG, Jianfeng YUAN
  • Publication number: 20150302785
    Abstract: The present disclosure provides a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit comprises a plurality of signal splitting systems which include a scanning signal input interface configured to receive an original scanning signal with a width of MT, an auxiliary control signal input interface configured to receive an auxiliary control signal, and signal output interfaces connected to M rows of gate lines in an one-to-one correspondence manner. The signal splitting system is configured to split the original scanning signal with a width of MT into M gate driving signals with a width of a gate line turn-on time T, and output the gate driving signals to the M rows of gate lines sequentially via the output interfaces. M is not less than 2.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 22, 2015
    Applicants: BOE TECHNOLOGY GROUP CO, LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huanbin CHEN, Jianfeng YUAN
  • Publication number: 20150255408
    Abstract: A substrate capable of electrostatic self-protection and a manufacturing method thereof, and the substrate (1) comprises: a panel area (2); and a first gate metal layer (3) and a source/drain metal layer (5) disposed on at least one side of the panel area (2). The first gate metal layer (3) and the source/drain metal layer (5) are arranged parallel to each other in a longitudinal direction and adjacent to each other; at least one tip (31) is protruded from the first gate metal layer (3) towards the source/drain metal layer (5); and/or at least one tip (31) is protruded from the source/drain metal layer (5) towards the first gate metal layer (3).
    Type: Application
    Filed: November 19, 2013
    Publication date: September 10, 2015
    Inventors: Xi Chen, Yuchun Feng, Jianfeng Yuan
  • Publication number: 20150168827
    Abstract: An auto-repairing photoresist composition comprises 1 to 10 wt % of microcapsule having a capsule wall and a capsule core based on the total weight of the photoresist composition, wherein the capsule wall includes an alkali-insoluble resin, and the capsule core includes: 10 to 60 wt % of a photo-curable unsaturated resin oligomer; 10 to 50 wt % of a photo-cruable monomers; 10 to 70 wt % of a first black pigment paste; 0.1 to 10 wt % of a first photo-initiator; and 0.1 to 5 wt % of a coupling agent, based on the total weight of the capsule core. The photoresist composition of embodiments of the present invention can be used for preparation of Black Matrix, and has an auto-repairing property to improve substantially the pass yield of product. A method of preparing the photoresist composition, a color filter substrate, and a display apparatus are also disclosed.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 18, 2015
    Inventors: Tonghua Yang, Hongjiang Wu, Changgang Huang, Jianfeng Yuan
  • Publication number: 20150146279
    Abstract: A display device and a manufacturing method thereof are disclosed. The display device comprises an upper substrate (103), a lower substrate (104), a solvent (102), and ellipsoids (101), and the solvent (102) and the ellipsoids (101) are provided between the upper substrate (103) and the lower substrate (104). The ellipsoids are configured for forming photonic crystals and have electromagnetic characteristics. By means of photonic crystals formed by the ellipsoids having a shape of oval spheres with a size in order of nanometer or sub-micrometer, the display device can change wavelength of reflected light and present different colors, thus color images can be displayed.
    Type: Application
    Filed: June 17, 2013
    Publication date: May 28, 2015
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kui Liang, Jianfeng Yuan, Seung Moo Rim
  • Patent number: 8766264
    Abstract: An embodiment of the disclosed technology provides a thin film transistor device comprising a source electrode, a drain electrode, a gate electrode, an active layer corresponding to the gate electrode, and a gate insulation layer formed between the gate electrode and the active layer; a concave region corresponding to the gate electrode is provided in the gate insulation layer.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: July 1, 2014
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventor: Jianfeng Yuan
  • Publication number: 20140168559
    Abstract: According to one aspect of the present invention, the provided is an array substrate. Specifically, the first conductive strip that is coupled to the first data shorting bar and the second conductive strip that is coupled to the second data shorting bar are formed on the array substrate. The width of the first conductive strip is greater than the width of the first data shorting bar. The width of the second conductive strip is greater than the width of the second data shorting bar. The first conductive strip is overlapped with the second conductive strip. Such a structure of the array substrate effectively increases the overlapped capacitance between the data metal layer and the gate metal layer.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaming ZHU, Liang SUN, Jianfeng YUAN, Seung Moo RIM, Xibin SHAO