| 摘要 |
PROBLEM TO BE SOLVED: To provide a LED panel unit that facilitates a larger display screen with improved structural strength of the display screen as a hardware when a plurality of small LED display units are combined and arranged to constitute a large display device, as well as achieves high safeness and reliability, and to provide a LED display unit and a LED display device using the panel unit. SOLUTION: The LED panel unit includes a circuit board on which a plurality of LED lamps are placed, wherein the outer form of the unit has at least one recess. COPYRIGHT: (C)2007,JPO&INPIT
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