Patents by Inventor Weili Zhao

Weili Zhao 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).

  • Patent number: 10048061
    Abstract: A measuring method and a measuring system are used for measuring contrast of a display device, including controlling the display device to display a first image, measuring brightness of a central area of the first image, controlling display device to display a second image, measuring brightness of a central area of the second image, and determining the contrast. Both the first image and the second image have a plurality of areas with different gray scales, the first image includes a maximum gray scale area, and the second image includes a minimum gray scale area.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: August 14, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shengbao Dun, Zhongbao Wu, Li Sun, Hangman Lai, Yan Wei, Zhiying Zhang, Weili Zhao
  • Publication number: 20180204911
    Abstract: A semiconductor device and its manufacturing method are presented. The semiconductor device includes a collection region, a base region adjacent to the collection region, an emission region adjacent to the base region, and a doped semiconductor layer on the emission region. The width of the doped semiconductor layer is larger than the width of the emission region, a conductive type (e.g., P-type or N-type) of the doped semiconductor layer is the same as a conductive type of the emission region. In this inventive concept, the width of the doped semiconductor layer on the emission region is larger than the width of the emission region, that equivalently increases the width of the emission region, which in turn increases the DC amplification factor (?) and therefore improves the overall performance of the semiconductor device.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 19, 2018
    Inventors: JianXiang CAI, YiQi Wang, WeiLi Zhao, XiaoFang Yang, JingGuo Jia
  • Publication number: 20180168026
    Abstract: In accordance with various embodiments of the disclosed subject matter, an array substrate, a fabricating method thereof, and a related display apparatus are provided. The array substrate comprises: a main substrate including a central display region and a peripheral wiring region, wherein a plurality of conducting wire terminals are disposed in the peripheral wiring region: and at least one flexible circuit board bonded on the peripheral wiring region of the main substrate: wherein each flexible circuit board includes a base substrate made of a soft cloth material and a flexible driving circuit structure formed on the base substrate; the flexible driving circuit structure of each flexible circuit board further includes a plurality of connecting terminals that are correspondently electrically connected with at least a pan of the plurality of conducting wire terminals of the main substrate.
    Type: Application
    Filed: August 23, 2016
    Publication date: June 14, 2018
    Inventors: Jiaoming LU, Weili ZHAO
  • Patent number: 9964811
    Abstract: The present disclosure provides a curved display panel. The curved display panel includes two substrates each having a first curvature, each of the two substrates including two first side regions with the first curvature and two second side regions; a sealant for bonding the two substrates together, the sealant having a first sealant portion configured to seal the first side regions and a second sealant portion configured to seal the second side regions, wherein a Young's modulus of the first sealant is less than a Young's modulus of the second sealant.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: May 8, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weili Zhao, Jae Geon You, Xinxing Wang
  • Patent number: 9939669
    Abstract: A flexible display panel, comprising: a first flexible substrate and a second flexible substrate cell-aligned to each other; a blue phase liquid crystal layer disposed between the first flexible substrate and the second flexible substrate and strip electrodes arranged on the second flexible substrate at a side close to the blue phase liquid crystal layer at intervals; a reflective layer disposed on the second flexible substrate at a side far away from the blue phase liquid crystal layer; and a ¼ wave plate and a polarizer successively arranged on the first flexible substrate at a side far away from the blue phase liquid crystal layer, with an included angle between a light transmitting axis of the polarizer and an optical axis of the ¼ wave plate being 45° and an included angle between each of the strip electrodes and the optical axis of the ¼ wave plate being 90°.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: April 10, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Publication number: 20180088374
    Abstract: A liquid crystal display panel and a preparation method thereof, and a display device are provided. The liquid crystal display panel includes a display region, a sealant arrangement region surrounding the display region, and a dummy region located between the display region and the sealant arrangement region. A sealant is arranged in the sealant arrangement region. A buffer piece is arranged in the dummy region, and the buffer piece is arranged along at least one edge of the liquid crystal display panel. An elastic modulus of the buffer piece is less than that of the sealant.
    Type: Application
    Filed: May 11, 2016
    Publication date: March 29, 2018
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Weili Zhao, Hua Huang
  • Publication number: 20180068626
    Abstract: An array substrate, a display device and a driving method thereof are provided. In the array substrate, in a first pixel unit constituting a display unit group, a TFT of the first sub-pixel and a TFT of the second sub-pixel are connected to the same data line. In the second pixel unit of the display unit group, a TFT of the second sub-pixel and a TFT of the third sub-pixel are connected to the same data line. A distance along a direction of the gate line between adjacent two sub-pixels having a data line between them is a first shielding size, a distance along the direction of the gate line exists between adjacent two sub-pixels having no data line between them is a second shielding size, and the second shielding size is smaller than the first shielding size.
    Type: Application
    Filed: August 15, 2017
    Publication date: March 8, 2018
    Inventors: Weili ZHAO, Jae Geon YOU
  • Patent number: 9904085
    Abstract: The disclosure relates to a curved-surface liquid crystal display, comprising a backplane, a backlight module, a liquid crystal display panel and a frame, the backlight module and the liquid crystal display panel both being of a planar structure, the backlight module being provided within the backplane, the liquid crystal display panel being provided on the light emergent side of the backlight module, the curved-surface liquid crystal display further comprising a cover plate fixed onto the liquid crystal display panel through the frame, the cover plate comprising a first surface deviating from the liquid crystal display panel and a second surface facing the liquid crystal display panel, the first surface being concave. The curved-surface liquid crystal display provided by the disclosure implements the curved-surface design with the cover plate having a curved-surface structure, further avoiding the problem of light leak caused by the bending of the liquid crystal display panel.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 27, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Patent number: 9874786
    Abstract: A color film substrate, a display panel and a display device are provided. The color film substrate comprises: a flexible base substrate partitioned to a plurality of sub-regions based on a plurality of parallel lines that is paralleled with a setting central axis of the base substrate, the plurality of sub-regions having the same area as each other; and a plurality of photo spacers provided in each of the plurality of sub-regions. For any one of the plurality of sub-regions, each of the photo spacers in one of the plurality of sub-regions is configured such that a thickness of the display panel at a position corresponding to the photo spacers is increasingly changed under the same pressure force as a distance of said one of the plurality of sub-regions from the setting central axis increases. As a result, a thickness of a liquid crystal cell of the display panel can be maintained to be uniform when the display panel is bent.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: January 23, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Weili Zhao, Guangxiong Wu, Chang Xie
  • Publication number: 20170328703
    Abstract: A measuring method and a measuring system are used for measuring contrast of a display device, including controlling the display device to display a first image, measuring brightness of a central area of the first image, controlling the display device to display a second image, measuring brightness of a central area of the second image, and determining the contrast. Both the first image and the second image have a plurality of areas with different gray scales, the first image includes a maximum gray scale area, and the second image includes a minimum gray scale area.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 16, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengbao DUN, Zhongbao WU, Li SUN, Hangman LAI, Yan WEI, Zhiying ZHANG, Weili ZHAO
  • Patent number: 9798212
    Abstract: A liquid crystal display device, which comprises: a backlight source (1); a first handedness cholesteric liquid crystal film layer (2), located at an upper side of the backlight source (1) as a light emitting surface; an array substrate (3), located at an upper side of the first handedness cholesteric liquid crystal film layer (2); a color filter substrate (5), located at an upper side of the array substrate (3); and a second handedness cholesteric liquid crystal layer (4), sandwiched between the array substrate (3) and the color filter substrate (5), the first handedness being opposite to the second handedness. The liquid crystal display device greatly improves light efficiency and transmittance of the display and saves the processing steps and manufacturing costs.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: October 24, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Publication number: 20170299906
    Abstract: The present disclosure provides a curved display panel. The curved display panel includes a first substrate; a second substrate; a first sealant strip for bonding the first substrate and the second substrate on a first straight side of the first substrate and the second substrate; and a second sealant strip for bonding the first substrate and the second substrate on a first curved side of the first substrate and the second substrate, wherein the first sealant strip has a first intersection with the second sealant strip, the second sealant strip extending from the first intersection towards a non-display region by a first distance.
    Type: Application
    Filed: November 19, 2015
    Publication date: October 19, 2017
    Inventor: Weili ZHAO
  • Publication number: 20170276988
    Abstract: A curved surface LCD panel and a display device are disclosed. The curved surface LCD panel includes an array substrate and an opposite substrate parallel with each other and curved in a same direction, wherein edge zones of the array substrate and the opposite substrate having plural optical retardation zones, each of the optical retardation zones on the array substrate being corresponding to one of the optical retardation zones on the opposite substrate, and two corresponding optical retardation zones constituting a zone group; a LC layer located between the array substrate and the opposite substrate; and an optical compensation film attached at each of the optical retardation zones in at least one zone group; wherein the optical compensation film being perpendicular to an optical axis of the optical retardation zone attached with the optical compensation film and having an equal optical retardation with the optical retardation zone.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 28, 2017
    Inventors: Weili Zhao, Jikai Yao, Hua Huang
  • Publication number: 20170192267
    Abstract: The present invention provides a curved display device, a method for manufacturing a curved display device and an electronic device. The curved display device may comprise a first curved light-transmitting substrate, a second curved light-transmitting substrate arranged opposite to the first curved light-transmitting substrate and a sealant having a particular width distribution which is located between the first curved light-transmitting substrate and the second curved light-transmitting substrate and coated along edges of the first curved light-transmitting substrate and the second curved light-transmitting substrate.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 6, 2017
    Inventors: Xinxing Wang, Weili Zhao, Jaegeon You
  • Publication number: 20170192275
    Abstract: A flexible liquid crystal display panel and a display device are disclosed. The flexible liquid crystal display panel comprises: a first flexible substrate and a second flexible substrate arranged oppositely; a first polarizer on a side of the first flexible substrate facing away from the second flexible substrate; a second polarizer on a side of the second flexible substrate facing away from the first flexible substrate; and a positive C plate compensation film and a first negative A plate compensation film arranged on the second flexible substrate; the positive C plate compensation film is arranged between the second flexible substrate and the first negative A plate compensation film. The light leakage defect of a visual angle greater than zero in a dark state can be overcome, which occurs since the absorption axis of the first polarizer and the absorption axis of the second polarizer are not perpendicular to each other.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 6, 2017
    Inventors: Qian JIA, Yingtao WANG, Weili ZHAO
  • Publication number: 20170123257
    Abstract: The disclosure relates to a curved-surface liquid crystal display, comprising a backplane, a backlight module, a liquid crystal display panel and a frame, the backlight module and the liquid crystal display panel both being of a planar structure, the backlight module being provided within the backplane, the liquid crystal display panel being provided on the light emergent side of the backlight module, the curved-surface liquid crystal display further comprising a cover plate fixed onto the liquid crystal display panel through the frame, the cover plate comprising a first surface deviating from the liquid crystal display panel and a second surface facing the liquid crystal display panel, the first surface being concave. The curved-surface liquid crystal display provided by the disclosure implements the curved-surface design with the cover plate having a curved-surface structure, further avoiding the problem of light leak caused by the bending of the liquid crystal display panel.
    Type: Application
    Filed: July 1, 2016
    Publication date: May 4, 2017
    Inventor: Weili ZHAO
  • Publication number: 20170102568
    Abstract: The present disclosure provides a curved display panel. The curved display panel includes two substrates each having a first curvature, each of the two substrates including two first side regions with the first curvature and two second side regions; a sealant for bonding the two substrates together, the sealant having a first sealant portion configured to seal the first side regions and a second sealant portion configured to seal the second side regions, wherein a Young's modulus of the first sealant is less than a Young's modulus of the second sealant.
    Type: Application
    Filed: December 10, 2015
    Publication date: April 13, 2017
    Inventors: WEILI ZHAO, JAE GEON YOU, XINXING WANG
  • Patent number: 9547193
    Abstract: A transflective type liquid crystal display panel and a display using it are provided in order to solve the problem that there exists much difficulty in the making process of the upper substrate in the transflective type liquid crystal display panel.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 17, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Weili Zhao
  • Patent number: 9535303
    Abstract: The present invention provides a liquid crystal display device, the liquid crystal display device comprising an upper polarizer, a lower polarizer and a first liquid crystal cell arranged between the upper polarizer and the lower polarizer, wherein a second liquid crystal cell is further arranged between the upper polarizer and the first liquid crystal cell, the second liquid crystal cell comprising a first electrode, a second electrode and a first liquid crystal layer arranged between the first electrode and the second electrode, the first liquid crystal layer being a blue phase liquid crystal layer, the first electrode and the second electrode being used for forming a vertical electric field. The present invention can realize switching between a wide view mode and a narrow view mode of the liquid crystal display device.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: January 3, 2017
    Assignee: Boe Technology Group Co., Ltd.
    Inventor: Weili Zhao
  • Publication number: 20160370654
    Abstract: A display panel and a display device are provided. The display panel comprises a central region and peripheral regions. The peripheral regions are provided at two opposite ends of the display panel and have a first curvature; the central region is provided between the two opposite ends of the display panel and has a second curvature; and the second curvature of the central region is smaller than the first curvature of the peripheral regions.
    Type: Application
    Filed: May 14, 2015
    Publication date: December 22, 2016
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Jaegeon You, Xinxing Wang, Weili Zhao, Guangkui Qin