Abstract: The invention relates to an essentially pressure-insensitive liquid crystal cell. Electrode-equipped (5, 6) plates (1, 2) are arranged at a predetermined distance from each other and define a liquid crystal layer of a thickness d. At least a first (1) of the plates is transparent and has a thickness b not exceeding 1 mm, and a modulus of elasticity E. Spacers (11) fixed in the cavity and having a height h are distributed with a spacing L and have substantially the same modulus of elasticity E as said first plate. The spacers (11) have a width not exceeding 50 &mgr;m, at least in one direction. The degree of the surface coverage s by the supporting areas of the spacers (11) on said first plate (1) exceeds or is equal to a minimum value which is dependent on the type of liquid crystal.
Type:
Grant
Filed:
November 25, 1997
Date of Patent:
February 6, 2001
Assignee:
EMT AG
Inventors:
Sven T. Lagerwall, Anatoli A. Muravski, Sergei Ye Yakovenko, Viktor A. Konovalov, Anatoli A. Minko, Valeri P. Tsarev