IMAGE DISPLAY DEVICE, ELECTRONIC APPARATUSE USING THE SAME, DISPLAY OUTPUT CONTROL METHOD FOR IMAGE DISPLAY DEVICE, AND OUTPUT CONTROL PROGRAM THEREOF
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United States of America Patent
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app pub date -
Dec 15, 2015
filing date -
Jun 21, 2010
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Abandoned
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Abstract
Provided is a display device having a viewing angle changing function, which is capable of preventing leakage of information displayed on a display screen even when there is a fault generated in changing the viewing angle. The image display device including a viewing angle changing element capable of changing a wide vision display and a narrow vision display and including a display element is provided with a detection element which detects a fault generated in the viewing angle changing element and a module for changing to a narrow vision display when there is a fault based on a detection value of the detection element. For example, when there is a fault, a transparent heater is operated to heat a liquid crystal layer to set a transparent-scattering changing element to a transparent state and forcibly set the display device to a narrow vision display.
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