Ferroelectric liquid crystal device having spacers including the

Details Ferroelectric liquid crystal device having spacers including the Ferroelectric liquid crystal device having spacers including the

1993-01-25

1994-02-08

Levy, Stuart S.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

G02F 1133

Patent

active

052853047

ABSTRACT:
There is provided a ferroelectric liquid crystal device wherein the yellowing due to a cell thickness increase or occurrence of voids is suppressed. The ferroelectric liquid crystal device includes a pair of substrates each having thereon a group of electrodes for liquid crystal drive, and a layer of ferroelectric liquid crystal disposed between the substrates, wherein thermosetting adhesive particles and thermoplastic polymer particles having a diameter which is 1.5-5 times the liquid crystal layer thickness are dispersed and pressed between the substrates. The polymer particles preferably have a glass transition temperature of at most -20.degree. C.

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