Screen frame and laser projection display device

{
  "publication_number": "US11191372B2",
  "country": "US",
  "kind": "B2",
  "title": "Screen frame and laser projection display device",
  "abstract": "Provided are a screen frame and a laser projection display device. The screen frame includes a plurality of side frames that are connected end to end, where each two adjacent side frames of the plurality of side frames are connected by at least two connectors, and the at least two connectors are connected to the each two adjacent side frames by fasteners; the at least two connectors include a first connector and a second connector, and an inserting direction of a fastener on the first connector is perpendicular to a plane where the screen frame is located, and an inserting direction of a fastener on the second connector is parallel to the plane where the screen frame is located. The present disclosure can realize accurate alignment and joining relatively easily.",
  "claims": [
    "1. A screen frame, comprising: a plurality of segments that are connected end to end, wherein each two adjacent segments of the plurality of segments are connected by at least two connectors, and the at least two connectors are connected to the each two adjacent segments by fasteners; the at least two connectors comprise a first connector and a second connector, and an inserting direction of a fastener on the first connector is perpendicular to a plane where the screen frame is located, and an inserting direction of a fastener on the second connector is parallel to the plane where the screen frame is located; wherein the each two adjacent segments are provided with receiving grooves at a joint of the each two adjacent segments in a one to one manner; wherein the first connector and the second connector each have a plurality of inserting portions which are extendable into the receiving groove, and the inserting portions are connected to side walls of the receiving grooves by the fasteners; wherein at least one inserting portion of the inserting portions of at least one of the first connector or the second connector is provided with a telescopic engaging member.",
    "2. The screen frame according to claim 1, wherein a depth direction of the receiving grooves is along a length direction of the segments.",
    "3. The screen frame according to claim 1, wherein the fasteners pass through the side walls of the receiving grooves and the inserting portions to connect the first connector and the second connector to the segments.",
    "4. The screen frame according to claim 1, wherein the first connector has two inserting portions, which are respectively located at different sides of the first connector and respectively connected to different receiving grooves, and the second connector has two inserting portions, which are respectively located at different sides of the second connector and respectively connected to different receiving grooves.",
    "5. The screen frame according to claim 1, wherein the first connector and the second connector are arranged along a radial direction of the screen frame, and the first connector is located outside of the second connector.",
    "6. The screen frame according to claim 5, wherein the first connector and the second connector are arranged along a diagonal line direction of the screen frame.",
    "7. The screen frame according to claim 1, wherein there are at least two fasteners connected on the second connector, and an inserting direction of each fastener of the at least two fasteners is perpendicular to a segment corresponding to that fastener.",
    "8. The screen frame according to claim 1, wherein the engaging member comprises a snapping end extendable out of an outer surface of the inserting portion on which the engaging member is provided, the segments are provided with a receiving hole corresponding to the engaging member, and the snapping end is configured to extend into and be snapped within the receiving groove.",
    "9. The screen frame according to claim 8, wherein the snapping end is an arc-shaped end.",
    "10. The screen frame according to claim 8, wherein the receiving hole is disposed toward a rear surface of the screen frame.",
    "11. The screen frame according to claim 1, wherein when the second connector is provided with the engaging member, a telescopic direction of the engaging member is perpendicular to the inserting direction of the fastener on the second connector.",
    "12. The screen frame according to claim 1, wherein when the first connector is provided with the engaging member, a telescopic direction of the engaging member is the same as the inserting direction of the fastener on the first connector.",
    "13. The screen frame according to claim 12, wherein the engaging member is disposed away from an extending direction of the inserting portions.",
    "14. The screen frame according to claim 1, wherein both the first connector and the second connector have a plurality of engaging members, which are respectively disposed on different inserting portions.",
    "15. The screen frame according to claim 1, wherein the engaging member is a spring plunger.",
    "16. The screen frame according to claim 1, wherein the engaging member is located on a side wall of the inserting portion on which the engaging member is provided, and a telescopic direction of the engaging member is perpendicular to the side wall of the inserting portion on which the engaging member is provided.",
    "17. A laser projection display device, comprising a projection host, wherein the laser projection display device further comprises a projection screen and a screen frame according to claim 1, and wherein the screen frame is disposed around the projection screen from outside."
  ],
  "description_excerpt": "The present disclosure relates to the field of displayer, and in particular, to a screen frame and a laser projection display device.\n\nWith a continuous development of technology and an improvement of people's living standards, a new laser projection display device has been more and more widely used.\n\nAt present, in a laser projection screen, a frame type screen has the advantages of light weight, low cost, and easy assembly, and thus has been widely used. The frame type screen is formed by joining a plurality of side frames.\n\nThe present disclosure provides a screen frame and a laser projection display device, which can realize accurate alignment and joining relatively easily.\n\nIn one aspect, the present disclosure provides a screen frame including a plurality of side frames that are connected end to end, where each two adjacent side frames of the plurality of side frames are connected by at least two connectors, and the at least two connectors are connected to the each two adjacent side frames by fasteners; the at least two connectors include a first connector and a second connector, and an inserting direction of a fastener on the first connector is perpendicular to a plane where the screen frame is located, and an inserting direction of a fastener on the second connector is parallel to the plane where the screen frame is located.\n\nIn another aspect, the present disclosure provides a laser projection display device including a projection host, a projection screen, and a screen frame as described above, the screen frame is disposed around the projection screen from outside.",
  "cpc": [
    "A47G 1/102",
    "A47G 1/101",
    "G03B 21/2033",
    "G03B 21/54",
    "G03B 21/56",
    "G03B 21/58",
    "G03B 21/60",
    "G03B 21/62",
    "G03B 21/625",
    "G03B 21/64",
    "H04N 9/3161"
  ],
  "ipc": [
    "A47G 1/10",
    "G03B 21/56",
    "G03B 21/58",
    "G03B 21/60",
    "G03B 21/62",
    "G03B 21/625",
    "G03B 21/64",
    "H04N 9/31"
  ],
  "assignees": [
    "Qingdao Hisense Laser Display Co Ltd"
  ],
  "inventors": [
    "Bo Chen",
    "Yongda Huang",
    "Fei Zhao"
  ],
  "filing_date": "2019-09-19",
  "publication_date": "2021-12-07",
  "grant_date": "2021-12-07",
  "priority_date": "2018-12-19",
  "application_number": "US-201916576735-A",
  "family_id": "71097925",
  "cited_by_count": 2,
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