| 摘要 |
The present invention relates to a mirror device, the reflectivity of which may be varied by means of applying a voltage. According to an aspect of the invention, there is provided a mirror device, the reflectivity of which may be varied by means of applying a voltage, comprising a cholesteric filter ( 33 ) which is arranged to be gradually switchable between a reflective and a transparent state by varying said voltage, and a display device ( 32 ) arranged to be at least partly covered by the cholesteric filter, wherein said display device is visible when the cholesteric filter is set in the transparent state and hidden when the cholesteric filter is set in the reflective state.
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