Liquid crystal cell having a glass fiber frame

• US 4,165,157 A
• Filed: 08/05/1977
• Issued: 08/21/1979
• Est. Priority Date: 08/10/1976
• Status: Expired due to Term

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Krueger, Hans, Kobale, Manfred
• Primary Examiner(s): Bauer, Edward S.
• Application Number:
  US05/822,205
• Time in Patent Office: 746 Days
• Field of Search: 350/343, 350/344, 65/58
• US Class Current: 349/187
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: Y10S 359/90 Methods
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A liquid crystal cell comprising at least two plate members each having a surface with at least a portion thereof having electric conductive coatings thereon and spacing means for maintaining the plate members with said surfaces parallel to one another to enclose a liquid crystal layer characterized by the spacing means consisting of at least one glass fiber which is imperviously connected to the plates by an adhesive. Preferably, the glass fiber is provided with an adhesive coating so that during assembly of the parts forming the cell, heat and pressures will cause the adhesive coating to be extruded from between the fiber and the surfaces of the plate member to enable the fiber to come into contact and to adhesively bond the fiber to the surfaces of the two plate members.

Claims

1. A method of producing a liquid crystal cell comprising at least two plate members each having a surface with at least a portion thereof having electrical conductive coatings thereon, said plate members being spaced apart by a spacing frame means for maintaining the surfaces of the plates parallel to one another with the frame means and the two plates forming a chamber for receiving a liquid crystal material, said method comprising providing at least one glass fiber, drawing each glass fiber through a solution of synthetic adhesive material to produce a fiber having a synthetic adhesive casing, preliminarily cross-linking said material of the synthetic adhesive casing, positioning the glass fiber in the desired pattern of the spacing frame means on a surface of one of said plate members, preheating said one plate member to cause an attachment of the fiber to the surface thereof, assemblying the second plate member on the spacing frame means formed by the glass fiber, and then securing the plate members together and to the glass fiber of the frame means by applying temperature and pressure so that the synthetic adhesive casing extrudes between the surfaces of the plate member and the fibers to enable each of said surfaces of the plate members to come in contact with the fiber and said synthetic material to adhesively connect said surfaces to said fiber.