Patents by Inventor Yafeng Yang

Yafeng Yang 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: 20180259691
    Abstract: A display device is disclosed. The display device includes a display panel, and a grating layer arranged inside or outside of the display panel. Along a direction pointing from a center of a sight concentration area of the display device to a non-sight concentration area of the display device, a grating period of the grating layer decreases gradually. When incident light incident on the grating layer is diffracted at an area of the grating layer corresponding to the non-sight concentration area of the display device, the obtained light of non-zero order diffraction falls into a sight of a viewer.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 13, 2018
    Inventors: Wei WANG, Yafeng YANG, Xiaochuan CHEN, Qian WANG, Jifeng TAN, Jian GAO, Xinli MA, Can ZHANG, Can WANG
  • Publication number: 20180252933
    Abstract: A display device is provided, and the display device includes a backlight module, a display module and a light directing component which are sequentially arranged. The backlight module is configured to periodically and sequentially emit collimated light in S different directions; the collimated light in different directions runs through the display module and arrives at the light directing component, in which S?2; and the light directing component is configured to converge incident collimated light in a same direction to a same preset viewpoint and converge incident collimated light in different directions to different preset viewpoints, in which the preset viewpoints at least include two preset viewpoints belonging to a same eyeball. An image display method applied to the display device is also provided.
    Type: Application
    Filed: July 27, 2017
    Publication date: September 6, 2018
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: WEI WANG, YAFENG YANG, XIAOCHUAN CHEN
  • Publication number: 20180252932
    Abstract: The present application discloses a three-dimensional display panel including a first display substrate having a plurality groups of M pixels, the first display substrate being a reflective display substrate; a second display substrate facing the first display substrate, the second display substrate being a transparent display substrate; and a lens array layer on a side of the second display substrate distal to the first display substrate having a plurality of lenses capable of directing light reflected by each of the M pixels into one of N view zones on a side of the lens array layer distal to the second display substrate; M is an integer ?2; N is an integer ?2.
    Type: Application
    Filed: September 20, 2016
    Publication date: September 6, 2018
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Xiaochuan Chen, Yafeng Yang, Jian Gao
  • Publication number: 20180239194
    Abstract: A virtual curved surface display panel and a display device are provided. By using the light splitting principle of the grating structure, the imaging heights of the grating structures are designed to be symmetrically distributed with respect to a vertical symmetry axis of a display surface of the flat display panel. In the grating structures on the same side of the symmetry axis, the imaging heights of the respective grating structures having the same distance from the vertical symmetry axis are the same, and the imaging heights of the respective grating structures having different distances from the vertical symmetry axis are different from each other. By setting the imaging heights of the grating structures, the image distances of the pixels in the flat display panel are different so that the images of the plurality of pixels constitute a curved surface.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 23, 2018
    Inventors: Jifeng TAN, Wei WANG, Yafeng YANG, Jian GAO, Xiaochuan CHEN, Can ZHANG, Can WANG, Qian WANG, Xinli MA
  • Publication number: 20180239158
    Abstract: The present disclosure provides a display device. The display device comprises a display panel and a grating layer. The display panel comprises a left display area and a right display area, and from a center of a left-eye field-of-view central area of a left display area to a non left-eye field-of-view central area of the left display area, a grating period of a left-eye grating region of a first color, a grating period of a left-eye grating region of a second color, and a grating period of a left-eye grating region of a third color all decrease gradually. From a center of a right-eye field-of-view central area of a right display area to a non right-eye field-of-view central area of the right display area, a grating period of a right-eye grating region of the first color, a grating period of a right-eye grating region of the second color, and a grating period of a right-eye grating region of the third color all decrease gradually.
    Type: Application
    Filed: June 6, 2017
    Publication date: August 23, 2018
    Inventors: Wei WANG, Yafeng YANG, Xiaochuan CHEN, Jifeng TAN, Can WANG, Xinli MA, Jian GAO, Can ZHANG, Qian WANG
  • Publication number: 20180231694
    Abstract: A display panel and a display device are disclosed. The display panel includes a flat display substrate and optical devices. The optical devices are arranged on a display surface of the flat display substrate, and light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface.
    Type: Application
    Filed: May 10, 2017
    Publication date: August 16, 2018
    Inventors: Xinli MA, Yafeng YANG, Jian GAO, Can WANG, Can ZHANG, Jifeng TAN, Wei WANG
  • Publication number: 20180231831
    Abstract: A display panel and a display device are disclosed. The display panel includes a flat display substrate and optical devices. The optical devices are arranged on a display surface of the flat display substrate, and light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface.
    Type: Application
    Filed: May 10, 2017
    Publication date: August 16, 2018
    Inventors: Can WANG, Yafeng YANG, Jian GAO, Can ZHANG, Wei WANG, Jifeng TAN, Xinli MA
  • Publication number: 20180231810
    Abstract: A liquid crystal lens, a display device and a driving method of the display device are disclosed. The liquid crystal lens includes a first substrate, a second substrate, and a driving electrode layer and blue phase liquid crystals disposed between the first substrate and the second substrate; the driving electrode layer includes driving electrodes, each driving electrode includes at least two electrode pairs, the electrode pair includes two sub-electrodes which are disposed opposite to each other and can be applied with a voltage separately, and all the sub-electrodes in the same driving electrode are insulated from each other; the sub-electrodes of different electrode pairs in the same driving electrode are unparallel to each other; and the blue phase liquid crystals at different positions have deformations of different degrees in electrical fields with different intensities generated by the different sub-electrodes.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 16, 2018
    Inventors: Qian WANG, Xiaochuan CHEN, Wenqing ZHAO, Yafeng YANG, Jian GAO, Wei WANG, Jifeng TAN, Xiaochen NIU, Haiyan WANG
  • Publication number: 20180231867
    Abstract: Disclosed is a lens device, including: a first transparent substrate; a second transparent substrate; and a liquid crystal layer filled therebetween. The first transparent substrate is a Fresnel lens, and a surface of the Fresnel lens toward the liquid crystal layer is disposed with grooves which are spaced from one another in accordance with Fresnel wave zones. The second transparent substrate is configured to control state of a liquid crystal, such that a refractive index of the liquid crystal, when polarized light incident into the liquid crystal passes through the liquid crystal, transforms between a first refractive index of the liquid crystal and a second refractive index of the liquid crystal, wherein the first refractive index is greater than the second refractive index, and a refractive index of the Fresnel lens is substantially equal to the first refractive index of the liquid crystal in the liquid crystal layer.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 16, 2018
    Inventors: Jian GAO, Xue DONG, Xiaochuan CHEN, Yafeng YANG, Wei WANG, Jifeng TAN, Xiandong MENG
  • Publication number: 20180231812
    Abstract: A virtual curved surface display panel and a display device are provided. By using the imaging principle of the concave lens, the concave lens array is provided on the display surface of the flat display panel, and the focal lengths of the concave lenses are designed to be symmetrically distributed with respect to a vertical symmetry axis of the display surface. In the concave lenses on the same side of the symmetry axis, the focal lengths of the respective concave lenses having the same distance from the vertical symmetry axis are the same, and the focal lengths of the respective concave lenses having different distances from the vertical symmetry axis are different from each other. By setting the focal lengths of the concave lenses, the image distances of the pixels in the flat display panel are different so that the images of the plurality of pixels constitute a curved surface.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 16, 2018
    Inventors: Jifeng TAN, Jian GAO, Yafeng YANG, Xiaochuan CHEN, Wei WANG, Can WANG, Can ZHANG, Qian WANG
  • Publication number: 20180224695
    Abstract: A virtual curved surface display panel, a method of manufacturing the same, and a display device are provided. A set of vertical lenticular lens and horizontal lenticular lens fitted tightly and orthogonally is arranged on a light exit surface of a pixel in the flat display panel, which forms an equivalent spherical lens. The focal lengths of the equivalent spherical lenses are symmetrically distributed with a central pixel as a symmetry axis, and focal lengths of the equivalent spherical lenses in the columns located on the same side of the symmetry axis are not equal to each other. Therefore, the equivalent spherical lenses enable the images of the pixels to form a curved surface, thereby realizing virtual curved surface display.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 9, 2018
    Inventors: Can ZHANG, Yafeng YANG, Jian GAO, Can WANG, Xinli MA, Wei WANG, Jifeng TAN
  • Publication number: 20180217306
    Abstract: A display device includes a display panel and a grating layer inside or outside the display panel. The display panel includes R pixels, G pixels and B pixels. The grating layer includes a R grating region, a G grating region and a B grating region; along a direction from a center of a central area of the view field of the display device to a non-central area of the view field, each of grating periods of the R, G and B grating regions gradually decreases; and lights emitted from positions of the display device corresponding to the R pixel, the G pixel and the B pixel are emitted respectively along straight lines formed by the position of the R pixel and the viewer, formed by the position of the G pixel and the viewer and formed by the position of the B pixel and the viewer.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 2, 2018
    Inventors: Wei WANG, Yafeng YANG, Xiaochuan CHEN, Jifeng TAN, Jian GAO, Can WANG, Xinli MA, Can ZHANG, Qian WANG
  • Publication number: 20180217389
    Abstract: The present disclosure provides a display device. The display device comprises a display panel and a grating layer, wherein along a direction pointing from a center of a left-eye field-of-view central area of the display device to a non left-eye field-of-view central area of the display device, a grating period of a left-eye grating region of a first color, a grating period of a left-eye grating region of a second color, and a grating period of a left-eye grating region of a third color all decrease gradually; along a direction pointing from a center of a right-eye field-of-view central area of the display device to a non right-eye field-of-view central area of the display device, a grating period of a right-eye grating region of the first color, a grating period of a right-eye grating region of the second color, and a grating period of a right-eye grating region of the third color all decrease gradually.
    Type: Application
    Filed: June 7, 2017
    Publication date: August 2, 2018
    Inventors: Wei WANG, Yafeng YANG, Xiaochuan CHEN, Jifeng TAN, Xinli MA, Can ZHANG, Can WANG, Jian GAO, Qian WANG
  • Publication number: 20180196255
    Abstract: The present disclosure provides a display device and driving method thereof. The display device includes a display panel, a first optical unit and a second optical unit. The first optical unit is located at a light emerging side of the display panel, and the second optical unit is located at a light emerging side of the first optical unit. The first optical unit is configured to converge light emitted from the display panel to a convergent point, and the second optical unit is configured to convert the light emitted from the convergent point into emergent light and emit the emergent light, so that a display area of the display panel observed by human eyes through the emergent light is adjustable. In this way, the display PPI of the display panel observed by the human eyes is adjustable.
    Type: Application
    Filed: February 13, 2017
    Publication date: July 12, 2018
    Inventors: Dongni LIU, Shengji YANG, Yafeng YANG, Xiaochuan CHEN
  • Publication number: 20180188612
    Abstract: A display device is provided, including a display panel; a controller; and an auxiliary panel disposed at a light emitting side of the display panel, the auxiliary panel including a first liquid crystal layer, a first substrate and a second substrate, the first liquid crystal layer being encapsulated between the first substrate and the second substrate, the first substrate including a first base substrate and a first transparent electrode layer, and the second substrate including a second base substrate and a second transparent electrode layer, wherein the controller is configured to provide a control signal to the first and second transparent electrode layers to cause different regions of the first liquid crystal layer to have different refractive indices, such that light transmitted from the display panel forms an image on a curved surface having an opening facing the light emitting direction of the display device.
    Type: Application
    Filed: March 9, 2017
    Publication date: July 5, 2018
    Inventors: Jian GAO, Xiaochuan CHEN, Yafeng YANG
  • Publication number: 20180180967
    Abstract: An auxiliary panel, includes two auxiliary liquid crystal panels provided in a stack, wherein each of the auxiliary liquid crystal panels includes a liquid crystal layer, a first substrate and a second substrate provided opposite to each other to form a cell, the liquid crystal layer is encapsulated between the first substrate and the second substrate, the first substrate includes a first base substrate and a first transparent electrode layer, the second substrate includes a second base substrate and a second transparent electrode layer comprising a plurality of second transparent electrodes arranged in a matrix, a number of the second transparent electrodes is equal to a number of the second transparent electrodes, the second transparent electrodes on one of the auxiliary liquid crystal panels and the second transparent electrodes on the other of the auxiliary liquid crystal panels have corresponding positions and the same shape.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 28, 2018
    Inventors: Jian GAO, Xiaochuan CHEN, Yafeng YANG
  • Publication number: 20180164472
    Abstract: A virtual curved surface display panel and a display device are provided. The virtual curved surface display panel includes a flat display panel having a plurality of pixels arranged in a matrix, and an array of convex lenses arranged on a light exit surface of the flat display panel. The array of convex lenses makes a track of image distances of the pixels form a curved surface. By adjusting the focal lengths of the lenses, the image distances of the pixels in the flat display panel can be various. The images of the pixels are then distributed on a curved surface. A visual effect of a virtual curved surface can be achieved with a flat display panel, improving the effect of visual impact.
    Type: Application
    Filed: February 20, 2017
    Publication date: June 14, 2018
    Inventors: Jian GAO, Xiaochuan CHEN, Yafeng YANG, Jifeng TAN, Pengcheng LU, Qian WANG, Can ZHANG, Can WANG, Xinli MA, Wei WANG
  • Publication number: 20180157145
    Abstract: A liquid crystal lens is disclosed in embodiments of the present disclosure. A liquid crystal lens includes: a first substrate and a second substrate disposed opposite to each other; a first electrode layer and a second electrode layer between the first substrate and the second substrate, the second electrode layer including a plurality of second electrodes each of which is capable being applied independently with a voltage and forms a vertical electrical field with the first electrode layer; and blue phase liquid crystals between the first electrode layer and the second electrode layer, wherein, the blue phase liquid crystals in different positions have different degrees of deformation under the action of the vertical electrical field at different intensities, to enable an imaging distance of the liquid crystal lens to vary smoothly along a preset curve. A display device and a method of driving the display device are further disclosed.
    Type: Application
    Filed: January 24, 2017
    Publication date: June 7, 2018
    Inventors: Qian Wang, Xiaochuan Chen, Wenqing Zhao, Yafeng Yang, Xiaochen Niu, Jian Gao, Pengcheng Liu, Wei Wang, Jifeng Tan
  • Patent number: 9985051
    Abstract: A display panel, a fabrication method thereof and a display apparatus are provided. The display panel includes: a nanometer light splitting film arranged between an array substrate and a first polarizer. The nanometer light splitting film includes multiple light splitting units arranged in an array. Each light splitting unit corresponds to at least one sub-pixel unit. The light splitting unit includes a multi-step grating structure for splitting light corresponding to the at least one sub-pixel unit to obtain light of one or more predetermined colors.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 29, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Yafeng Yang
  • Publication number: 20180138457
    Abstract: The present disclosure provides a display device and a manufacturing method thereof, in the field of display technology. The display device can comprise: a display panel and a light ray control component disposed on a light emergent side of the display panel, wherein the light ray control component comprises a plurality of zone plates; each sub-pixel region on the display panel corresponds to one of the zone plates, and the zone plate corresponding to any sub-pixel region is used to control a direction of light rays emitted from the any sub-pixel region. In the present disclosure, the light ray control component comprising a plurality of zone plates is disposed on the light emergent side of the display panel, and each sub-pixel region of the display panel corresponds to one zone plate. Therefore, the problem in the related art that the light rays emergent from the light emergent side of the display panel are divergent light, and a direction of the light rays is hard to control is solved.
    Type: Application
    Filed: October 27, 2017
    Publication date: May 17, 2018
    Inventors: Xinli Ma, Jian Gao, Can Wang, Jifeng Tan, Wei Wang, Yafeng Yang, Can Zhang