Process of making a liquid crystal element
First Claim
1. In a process of producing a liquid crystal element comprising opposed substrates, a liquid crystal nipped between said opposed substrates, and an aligning film formed on the surface of at least one of said substrates to effect substantially horizontal alignment of the liquid crystal molecules relative to said surface, the improvements which comprise forming said aligning film by (a) the Langmuir-Brodgett'"'"'s technique, comprising transferring said amphipathic substance spread on a subphase onto said substrate surface, whereby a monomolecular or multimolecular layer of said amphipathic substance is directly formed as said aligning film on said substrate surface or (b) the Langmuir-Brodgett'"'"'s technique, comprising transferring an amphipathic substance spread on a subphase onto said substrate surface, whereby a monomolecular or multimolecular layer of said amphipathic substance is formed on said substrate surface, followed by converting in situ of said amphipathic substance forming the resulting monomolecular or multimolecular layer thereof to the corresponding nonamphipathic substance as said aligning film.
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Abstract
A liquid crystal element comprising opposed substrates, a liquid crystal nipped between said opposed substrates, and an aligning film formed on the surface of at least one of said substrates to effect substantially horizontal alignment of the liquid crystal molecules relative to said surface, which liquid crystal element is characterized by the fact that the molecules forming said aligning film are substantially aligned in themselves.
148 Citations
4 Claims
- 1. In a process of producing a liquid crystal element comprising opposed substrates, a liquid crystal nipped between said opposed substrates, and an aligning film formed on the surface of at least one of said substrates to effect substantially horizontal alignment of the liquid crystal molecules relative to said surface, the improvements which comprise forming said aligning film by (a) the Langmuir-Brodgett'"'"'s technique, comprising transferring said amphipathic substance spread on a subphase onto said substrate surface, whereby a monomolecular or multimolecular layer of said amphipathic substance is directly formed as said aligning film on said substrate surface or (b) the Langmuir-Brodgett'"'"'s technique, comprising transferring an amphipathic substance spread on a subphase onto said substrate surface, whereby a monomolecular or multimolecular layer of said amphipathic substance is formed on said substrate surface, followed by converting in situ of said amphipathic substance forming the resulting monomolecular or multimolecular layer thereof to the corresponding nonamphipathic substance as said aligning film.
Specification
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- Resources
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Current AssigneeRicoh Company Limited
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Original AssigneeRicoh Company Limited
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InventorsIwamoto, Mitsumasa, Hino, Taro, Suzuki, Masaaki, Takiguchi, Yasuyuki, Uehara, Kiyohiro, Kakimoto, Masaaki, Kanemoto, Akihiko, Imai, Yoshio
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Primary Examiner(s)Pianalto, Bernard
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Application NumberUS07/399,335Time in Patent Office246 DaysField of Search427/58, 427/430.1, 427/331, 428/1, 350/341, 350/340US Class Current427/58CPC Class CodesG02F 1/133711 by organic films, e.g. poly...
