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Fluorescent blackboard

  • US 9,744,798 B2
  • Filed: 06/26/2013
  • Issued: 08/29/2017
  • Est. Priority Date: 06/25/2013
  • Status: Expired due to Fees
First Claim
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1. A fluorescent blackboard, comprising:

  • a housing;

    a circuit board fixed on the housing by screws;

    a display screen fixed by the circuit board;

    a panel attached and fixed on the housing by an adhesive tape; and

    a fixed device that limits and fixes the panel;

    wherein the housing is configured with a first through hole for the panel;

    the fixing device comprising a limiting column arranged around the first through hole and the panel is configured with a limiting hole that matches with the limiting column;

    wherein the fixed device comprises a supporting element fixed between the panel and a rear housing by attached or double-sided adhesive tape;

    the supporting element is made of a flexible and elastic material;

    the supporting elements are arranged at intervals.

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