Image display apparatus and control method therefor
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United States of America Patent
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Nov 6, 2018
Grant Date -
Mar 2, 2017
app pub date -
Aug 18, 2016
filing date -
Aug 31, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An image display apparatus includes a display module that displays an image, a cooling fan that rotates to cool the display module, an ambient temperature sensor that acquires an ambient temperature of the display module, and a fan control circuit board that controls a speed of rotation of the cooling fan. In response to acquisition of a mode change signal by the fan control circuit board, the fan control circuit board controls the speed of rotation of the cooling fan from a first speed of rotation to a second speed of rotation lower than the first speed of rotation and, in response to a lapse of a first period determined based on the ambient temperature, controls the speed of rotation of the cooling fan from the second speed of rotation to a third speed of rotation higher than the second speed of rotation.
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