| 摘要 |
The liquid crystal cell comprises a volume divided by a separating wall into a main chamber and a secondary chamber which define an active surface and a passive surface respectively. The secondary chamber is partially filled with the liquid crystal and with a gas. According to the invention the cell comprises, in addition, compensation means for variations in the volume of the liquid crystal constituted by a secondary chamber divided into a plurality of compartments, a plurality of passage openings being provided in the separating wall so that the main chamber and the secondary chamber are intercommunicating.
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