Electro-optical cell
First Claim
1. An electro-optical cell for field-effect type liquid crystal display comprising:
- a pair of electrode base plates each comprising a transparent base plate and an electrode film adhering to one surface thereof;
a pair of inorganic-protecting layers respectively provided in direct contact with at least the peripheral portion of the surface of each of said electrode base plates having the electrode films thereon;
an inorganic sealing agent applied at the peripheral portions of the electrode base plates in direct contact with the respective inorganic protecting layers so as to seal said base plates together with said electrode films facing each other to form a cell containing therein a nematic liquid crystal material having a positive dielectric anisotropy, and the cell being placed on an optical path so that the light passes through the pair of electrode base plates; and
a pair of polyimide resin films respectively oriented in one direction and provided within the cell over each of the electrode films in direct contact with the nematic liquid crystal material such that the directions of the orientations of the polyimide resin films intersect each other as viewed along the optical path.
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Accused Products
Abstract
An electro-optical cell for field-effect type liquid crystal display comprises:
A pair of electrode base plates each comprising a transparent base plate and an electrode film adhering to one surface thereof;
A pair of inorganic electrode-protecting layers respectively provided at least on the peripheral portion of the surface having the electrode film of each electrode base plate, said pair of electrode base plates being assembled with their surfaces having the electrode films facing each other by means of an inorganic sealing agent applied at the peripheral portions of the electrode base plates through the respective inorganic electrode-protecting layers so as to form a cell containing therein a nematic liquid crystal material having a positive dielectric anisotropy, and the cell being to be placed on an optical path so that light passes through the pair of the electrode base plates; and
A pair of polyimide resin films respectively orientated in one direction and provided within the cell over each of the electrode films with or without the inorganic electrode-protecting layer interposed between the electrode film and the polyimide resin film so that the directions of the orientations of the polyimide resin films intersect each other as viewed along the optical path.
55 Citations
16 Claims
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1. An electro-optical cell for field-effect type liquid crystal display comprising:
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a pair of electrode base plates each comprising a transparent base plate and an electrode film adhering to one surface thereof; a pair of inorganic-protecting layers respectively provided in direct contact with at least the peripheral portion of the surface of each of said electrode base plates having the electrode films thereon; an inorganic sealing agent applied at the peripheral portions of the electrode base plates in direct contact with the respective inorganic protecting layers so as to seal said base plates together with said electrode films facing each other to form a cell containing therein a nematic liquid crystal material having a positive dielectric anisotropy, and the cell being placed on an optical path so that the light passes through the pair of electrode base plates; and a pair of polyimide resin films respectively oriented in one direction and provided within the cell over each of the electrode films in direct contact with the nematic liquid crystal material such that the directions of the orientations of the polyimide resin films intersect each other as viewed along the optical path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A process for preparing an electro-optical cell for field-effect type liquid crystal display comprising the steps of:
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a. providing a pair of electrode base plates each comprising a transparent base plate and an electrode film adhering to one surface thereof, b. providing an inorganic electrode-protecting layer in direct contact with at least the peripheral portion of the surface having the electrode film of each electrode base plate, c. providing a pair of polyimide resin films respectively on the portion surrounded by the peripheral portion of the surface having the electrode film of each electrode base plate over the electrode film, d. orienting the polyimide resin films respectively in one direction, e. assembling said pair of electrode base plates by means of an inorganic sealing-agent applied at the peripheral portion of the electrode base plates in direct contact with respective electrode protecting layer so that the polyimide resin films on the electrode base plates face each other, and the oriented directions thereof intersect each other, thereby forming a cell, f. providing a liquid crystal material pouring port to a part of the cell prior to or during the steps (a) through (d), g. pouring a nematic liquid crystal material having a positive dielectric anisotropy into the cell through the liquid crystal material pouring port, said nematic liquid crystal material being in direct contact with the polyimide resin films and h. sealing the pouring port with a low temperature sealing agent. - View Dependent Claims (14, 15, 16)
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Specification