| 摘要 |
The present invention concerns a display assembly including two superposed, respectively top (52) and bottom (54), display devices, the top display device (52) including a double structure formed of a display cell (56) arranged above an optical valve (58), said double structure being arranged so that said cell (56) and said valve (58) are transparent in a first state to make the bottom display device (54) visible, and so that the cell (56) displays an item of data and so that the valve (58) is opaque and at least partially masks the bottom display device (54) in a second state, control means supplying a control voltage to cause the display cell (56) and the optical valve (58) to pass from the first state to the second state and vice versa, characterised in that the display cell (56) is of the reflective type in the switched state, and in that the optical valve (58) is formed of a cell having an absorbent state in the switched state.
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