Liquid crystal device for a timepiece
AssigneeThe Swatch Group Research and Development Ltd
InventorMichel Sagardoyburu
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AssigneeThe Swatch Group Research and Development Ltd
InventorMichel Sagardoyburu
Estimating the term…
A display device including a liquid crystal cell (2) formed from two transparent plates (4, 6) defining a useful zone (12), designed to define the visible zone of the cell in a timepiece, and incorporating electrodes forming a switchable display of an item of information and/or a decoration in the useful zone. The liquid crystal cell (LCD cell) includes, in the useful zone, a plurality of polarisers (16, 18) which are arranged on the outer surface (5) of one of the two transparent plates respectively in a plurality of separate zones (17, 19) and which each partially form the switchable display. At least two polarisers in the plurality of polarisers have a different optical property or a different polarisation direction between them. The device generates visually a variation between respective parts of the two polarisers and/or respective parts of the switchable display in the respective separate zones.
A horological display device comprising a liquid crystal cell formed from a first plate and a second plate, which are transparent, and from a bead of glue joining the first and second plates and defining therewith a closed space containing liquid crystals, the liquid crystal cell defining within the bead of glue a useful zone, which is intended to define the visible zone of this cell in a timepiece for which the display device is designed, and incorporating electrodes forming a switchable display of at least one item of information and/or at least one decoration in the useful zone;
Dependencies are inferred from the claim text.