Persistence of vision rotary display device

{
  "publication_number": "US10410559B2",
  "country": "US",
  "kind": "B2",
  "title": "Persistence of vision rotary display device",
  "abstract": "The persistence of vision rotary display device is a display that presents 2-D and 3-D images that appear to float in midair through the timely energization of a plurality of LEDs that travel in circular paths on a rotor. The rotor is driven by a motor mounted in a stator; the stator may be mounted to a fixed structure or held in a user's hand. The device achieves a resolution that is not limited by the physical size of the LEDs by mounting LEDs on multiple arms with a different offset from the center on each arm. Control electronics in the rotor map the image to polar format and adjust the timing of the LEDs to compensate for the fact that they may be on different arms. The device may present moving images by changing the image at a predetermined frame rate.",
  "claims": [
    "1. A rotary display device, comprising: a rotor, stator, and two or more linear display arms, where said rotor and stator are installed within a central hub and said two or more linear display arms are connected to said central hub at a proximal end; a microprocessor control board installed within said central hub; said central hub forming one portion of a rotating shaft of said rotor; each of said two or more linear display arms having a row of LED elements attached along the middle portion of each of the two or more linear display arms and extending the length of each of the two or more linear display arms; an LED position offset applied to one row of LED elements on a first linear display arm with respect to a row of LED elements on a second or additional linear display arm where said LED position offset provides for extended image persistence; said microprocessor control board in wireless communication with an external processor; the rotating shaft rotating under control of said microprocessor to spin said two or more linear display arms in a circle around said central hub, and where said microprocessor activates said rows of LED elements to form a persistent visual image during activation of said LED elements during the rotation of said rotating shaft where the LED position offset displaces a line formed by the centers of the one row of LED elements in a direction that is perpendicular to a radial extending from the center of rotation; where the LED position offset is different for each of the two or more linear display arms.",
    "2. The device of claim 1, further comprising the microprocessor receiving LED control files from an exterior processor, where said LED control files provide instructions for creating particular persistent visual image displays.",
    "3. The device of claim 1, where the microprocessor further comprises a Field Programmable Gate Array (FPGA).",
    "4. The device of claim 1, where the two or more linear display arms may be attached to said central hub in associated pairs.",
    "5. The device of claim 1, where the two or more linear display arms may be attached to said central hub in positions calculated to form a pre-calculated geometry.",
    "6. The device of claim 1, further comprising a Motor Drive Board further comprised of a Power and Protection Circuit, a Brushless Motor Driver, a Wireless Power Supply Circuit, an Infrared Communication Adjusting Circuit, and a Single Chip Microcomputer.",
    "7. The device of claim 1, where said LED position offset of the row of LED elements on the first linear display arm and the row of LED elements on the second or additional linear display arm are positioned such that the space between them maintains a gap distance calculated to create greater visual persistence when in operation.",
    "8. The device of claim 1, further comprising a mobile application on a mobile or network connected device to permit a user to control the operation of said rotary display device from said mobile application."
  ],
  "description_excerpt": "This Non-Provisional application claims under 35 U.S.C. § 120, the benefit of the Provisional Application 62/568,407, filed Oct. 5, 2017, Titled “Persistence of vision rotary display device” which is hereby incorporated by reference in its entirety.\n\nA portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.\n\nDisplay systems utilizing LEDs are well used to provide cost-effective and active displays for advertisement and informational purposes. Many systems exist to provide moving displays mounted on buildings, the sides of transport vehicles, or commercial vehicles to provide such LED displays to various groups of potential clients. LED displays are provided in static arrays and flat panel configurations to permit control programmatically on the information and/or advertising a client wishes to present on the LED display. Such displays are generally programmable but static in position.\n\nThe present invention relates to the field of display devices, more specifically, to a display device that utilizes persistence of vision and a plurality of LEDs mounted strategically to increase the resolution of the display.",
  "cpc": [
    "G09G 3/005",
    "G09G 2370/16",
    "G09G 2380/06",
    "G09G 2380/10",
    "G09G 2380/12",
    "G09G 3/14"
  ],
  "ipc": [
    "G09G 3/00"
  ],
  "inventors": [
    "Weihui Ted Meng",
    "Quan Zhou"
  ],
  "filing_date": "2018-01-23",
  "publication_date": "2019-09-10",
  "grant_date": "2019-09-10",
  "priority_date": "2018-01-23",
  "application_number": "US-201815877688-A",
  "family_id": "67299388",
  "cited_by_count": 1,
  "citations": [
    "US6433761B1",
    "US20060071622A1",
    "US20040102223A1",
    "US20100118209A1",
    "US10109224B1",
    "US20180166006A1"
  ]
}