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AssigneeFujitsu Limited
InventorsAkihiro Mochizuki, Toshiaki Yoshihara, Hironori Shiroto, Tetsuya Makino, Yoshinori Kiyota
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When a photopolymerization compound (molecular weight: not less than 300) having at least two ultraviolet light sensitive portions in its molecular structure is mixed with ferroelectric liquid crystal and an exposure to ultraviolet light is performed, a continuous structure is formed over almost whole length between two glass substrates, and a continuous twisted structure is formed between the glass substrates in the state of liquid crystal molecular orientation. Before the exposure to ultraviolet light, the photopolymerization compound does not exhibit satisfactory compatibility with the ferroelectric liquid crystal to be mixed, but exhibits phase separation in the mixed state. The ferroelectric liquid crystal has a bookshelf layer structure.
A ferroelectric liquid crystal display element in which ferroelectric liquid crystal is sealed into a gap formed by at least two substrates and molecular orientation of said ferroelectric liquid crystal is stabilized by an orientation force applied on surfaces of said substrates, wherein a compound having at least two ultraviolet light sensitive portions in its molecular structure is mixed into said ferroelectric liquid crystal, and a continuous twisted structure of said ferroelectric liquid crystal in a molecular orientation state is formed between said substrates by polymerizing said compound through exposure to ultraviolet light.
Dependencies are inferred from the claim text.