| 摘要 |
In a mobile telephone, first and second display devices are disposed on a front side and a rear side of a chassis, respectively. A state of a reflection control device of each of the display devices is changed over to a state where the reflection control device has a high reflectivity (mirror mode) or a state where an image is displayed (display mode) depending on presence or absence of application of a voltage to the reflection control device. Each of the display devices includes the reflection control device and a liquid crystal display device. The reflection control device controls transmission and shielding (reflection) of a luminous flux from a light guide plate. A mode of one of the first and second display devices is made the mirror mode, and a mode of the other is made the display mode. That is, since the display device in the mirror mode efficiently reflects an external light and an illumination light, and the resultant reflected light is applied to the display device in the display mode, the visibility is enhanced. Since it is unnecessary to provide a reflection member in the light guide plate between the display devices, the loss of the light transmitted through the first and second display devices becomes less, and hence the power saving can be realized.
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