| 摘要 |
PURPOSE: A video display device is provided to increase the air flow speed in the air flux which cools a display module thereby increasing the heat efficiency by the convection. CONSTITUTION: A display module(30) outputs the video to the front of a front cover. A back cover(70) is included in the front cover to form the air channel between the display modules. The back cover includes an inlet and an exhausted vent which the external air comes and exhausts. The air channel has each different flow cross-sectional area according to each section between the inlet and the exhausted vent. The back cover includes a housing unit](80) protecting the back side of the display module and a flow path contraction part(82) projected to the display module in the housing.
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