Chiral smectic liquid crystal device having alignment film over electrodes being different and having different pretilt from alignment film between electrodes
First Claim
1. A chiral smectic liquid crystal display device, comprising a first substrate provided with a first plurality of electrodes;
- a second substrate provided with a second plurality of electrodes facing and intersecting said first plurality of electrodes to define a matrix arrangement of pixels;
a chiral smectic liquid crystal interposed between said first and second substrates; and
first and second orientation films formed on at least one of said first and second substrates;
said first orientation film formed corresponding to and on said plurality of electrodes on said substrate, said second orientation film formed corresponding to and between said electrodes to fill step configuration between said electrodes,wherein said first orientation film provides a pre-tilt angle of said liquid crystal which is different from a pre-tilt angle provided by said second orientation film, and a pre-tilt angle of said liquid crystal disposed at a region where said first electrodes and said second electrodes are opposed to each other is different from a pre-tilt angle of said liquid crystal at a region where said first and second electrodes are not opposed to each other.
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Abstract
A liquid crystal device comprising a first substrate on which a first group of belt-shaped electrodes are formed, a second substrate on which a second group of belt-shaped electrodes are formed so as to cross the first group of belt-shaped electrodes, and a chiral smectic liquid crystal arranged between the first and second, substrates. A first pretilt angle of the liquid crystal on the first group of belt-shaped electrodes differs from a second pretilt angle of the liquid crystal in the spaces among the belt-shaped electrodes. The difference in pretilt angles is created by forming a resist over the spaces between the belt-shaped electrode, rubbing, removing the resist, and rubbing again.
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Citations
4 Claims
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1. A chiral smectic liquid crystal display device, comprising a first substrate provided with a first plurality of electrodes;
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a second substrate provided with a second plurality of electrodes facing and intersecting said first plurality of electrodes to define a matrix arrangement of pixels; a chiral smectic liquid crystal interposed between said first and second substrates; and first and second orientation films formed on at least one of said first and second substrates;
said first orientation film formed corresponding to and on said plurality of electrodes on said substrate, said second orientation film formed corresponding to and between said electrodes to fill step configuration between said electrodes,wherein said first orientation film provides a pre-tilt angle of said liquid crystal which is different from a pre-tilt angle provided by said second orientation film, and a pre-tilt angle of said liquid crystal disposed at a region where said first electrodes and said second electrodes are opposed to each other is different from a pre-tilt angle of said liquid crystal at a region where said first and second electrodes are not opposed to each other. - View Dependent Claims (2, 3, 4)
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Specification
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- Resources
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Current AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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Original AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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InventorsOkada, Shinjiro, Inaba, Yutaka, Taniguchi, Osamu, Mizuno, Hironobu
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Primary Examiner(s)GROSS, ANITA P
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Application NumberUS08/373,537Time in Patent Office791 DaysField of Search359/78, 359/76, 359/100US Class Current349/129CPC Class CodesG02F 1/133512 Light shielding layers, e.g...G02F 1/133753 with different alignment or...G02F 1/133761 with different pretilt anglesG02F 1/141 using ferroelectric liquid ...
