| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure with which production and assembly are easy and workability of repairing and maintenance is excellent. SOLUTION: By unifying a plurality of units in parallel with a linking frame, a large screen is composed of continuous front faces of the units. The unit which is a rectangle outline shape includes; one hard substrate; a plurality of tile parallel substrates attached to the front face of the hard substrate; and a plurality of LED tiles attached to the front face of each substrate. The tile has a basic substrate and a number of LED lamps are wired and mounted on its front face and a driving circuit for each lamp and a rear connector are wired and mounted on its rear face. The tile parallel substrate is composed of printed circuit boards and a plurality of front connectors are wired and mounted. The plurality of tile parallel substrates are arranged in front of the hard substrate and attached to the hard substrate by screws. The plurality of tiles are arranged in front of the tile parallel substrates and the rear face connector is fixed to the front connector of the parallel substrate. COPYRIGHT: (C)2006,JPO&NCIPI
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