| 摘要 |
PROBLEM TO BE SOLVED: To optimize the operation of a heat radiator when a display device is set rotated by 90 or 180 degrees around the center of a display surface. SOLUTION: Upper fans 11 are operated by the output of an angle detecting device 13, and side face fans 12 are stopped. Thereby, heat is sufficiently radiated from this display device, and a noise from the fans 11 and 12 is suppressed to the minimum.
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