| 摘要 |
The assembly includes a first display device (22) in front of which is arranged a second active liquid crystal display device including, starting from the exterior, a front polarizer (11) selective of a first color "V", a liquid crystal display cell (26) which is switchable ON/OFF, an intermediate polarizer (13) selective of a second color "R", an ON/OFF switchable optical liquid crystal valve (28) and a rear polarizer (15), which is reflective when the first display device (22) has a dark background and absorbent when it has a light background. A control unit (23) allows two switching states to be selected allowing the color of the information displayed, or that of the background on which said information is displayed to be reversed. Application to the display of information in a timepiece.
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