Display device

{
  "publication_number": "US10626961B2",
  "country": "US",
  "kind": "B2",
  "title": "Display device",
  "abstract": "A display device is disclosed. The display device includes a display module; a frame positioned behind the display module; a first gear positioned between the display module and the frame, adjacent to a corner of the display module, and rotatably mounted on the frame; and a second gear engaged with the first gear and rotatably mounted on the frame. A back surface of the display module is in contact with the first gear, and the first gear reciprocates between the display module and the frame according to a rotation of the second gear.",
  "claims": [
    "1. A display device, comprising: a display module; a frame positioned behind the display module; a first gear positioned between the display module and the frame, adjacent to a corner of the display module, and rotatably mounted on the frame; and a second gear engaged with the first gear and rotatably mounted on the frame, wherein a back surface of the display module is in contact with the first gear, and wherein the first gear reciprocates between the display module and the frame according to a rotation of the second gear.",
    "2. The display device of claim 1, wherein a thickness of the first gear is larger than a thickness of the second gear.",
    "3. The display device of claim 1, wherein a diameter of the first gear is larger than a diameter of the second gear.",
    "4. The display device of claim 1, further comprising: an axis of rotation configured to rotatably couple the first gear to the frame; and, a magnetic body positioned in the display module, wherein the axis of rotation includes metal.",
    "5. The display device of claim 1, wherein the frame further includes a slit formed to face the second gear, wherein the slit has a curvature corresponding to a curvature of the second gear, and wherein the second gear includes a stopper protruded from one surface of the second gear and inserted into the slit.",
    "6. The display device of claim 1, wherein the second gear includes a plurality of magnetic bodies positioned between the display panel and the second gear and mounted on the second gear, and wherein the plurality of magnetic bodies form a circle with respect to a center of the rotation of the second gear and are arranged sequentially.",
    "7. The display device of claim 6, wherein the plurality of magnetic bodies are alternately arranged with magnetic bodies having different polarities.",
    "8. The display device of claim 6, wherein the plurality of magnetic bodies are sequentially arranged with magnetic bodies having the same polarity.",
    "9. The display device of claim 1, wherein a gear ratio of the first gear to the second gear is 1:4 to 5.",
    "10. The display device of claim 1, wherein the first gear is mounted by a screw on the frame."
  ],
  "description_excerpt": "Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of earlier filing date and right of priority to Korean Application No. 10-2018-0027042, filed on Mar. 7, 2018, the contents of which are all hereby incorporated by reference herein in its entirety.\n\nThe present disclosure relates to a multi-display device.\n\nDigital signage is a communication tool that can induce marketing, advertising, training effects and customer experience of companies. It is a display device that provides specific information as well as broadcast programs in public places such as airports, hotels, hospitals, and subway stations.\n\nThe digital signage is a medium that displays various content and commercial advertisements by installing display devices such as a liquid crystal display (LCD), a plasma display panel (PDP), and an organic light emitting diode (OLED) in outdoor certain places or street furniture. The digital signage can now be installed on all moving lines, where the public moves, such as apartment elevators, subway stations, subways, buses, universities, banks, convenience stores, discount stores, shopping malls.\n\nWhen configuring a single screen using a plurality of display panels or display devices, the digital signage has a problem that a screen distortion occurs due to a difference in level between adjacent display panels in an up-down direction or in a left-right direction.\n\nOne object of the present disclosure is to solve the above-mentioned problems and other problems.",
  "cpc": [
    "G09F 9/3026",
    "F16H 19/02",
    "G02F 1/133308",
    "G02F 1/13336",
    "G06F 3/1446",
    "G09F 9/302",
    "G09F 9/335",
    "H05K 5/0017",
    "H05K 5/0021",
    "H05K 5/0217",
    "H05K 5/30"
  ],
  "ipc": [
    "F16H 19/02",
    "G09F 9/302",
    "H05K 5/00",
    "H05K 5/02"
  ],
  "assignees": [
    "LG Electronics Inc"
  ],
  "inventors": [
    "Jinha HEO",
    "Kitae Kim",
    "Dohyeon KIM",
    "Jinuk BAEK"
  ],
  "filing_date": "2019-03-07",
  "publication_date": "2020-04-21",
  "grant_date": "2020-04-21",
  "priority_date": "2018-03-07",
  "application_number": "US-201916296067-A",
  "family_id": "65019312",
  "cited_by_count": 9,
  "citations": [
    "US20080012790A1",
    "US20090225506A1",
    "US9053645B2",
    "US20110084892A1",
    "US9414503B2",
    "US20170105293A1"
  ]
}