| 摘要 |
Improvements in luminous screens comprising an arrangement formed by printed circuit plates that include groups of LEDs, said arrangement including a transparent polycarbonate protecting plate at the front portion thereof and a metallic front portion having apertures for visualizing the LEDs. A peripheral frame (5) is located about said arrangement, which predetermines a closed contour through which the group of LEDs is visualized by the front portion thereof, while the rear portion of the same remains closed having access doors (18) to the interior.
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