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Liquid filled electro-optic display cell with diaphragm seal

  • US 4,545,650 A
  • Filed: 12/09/1983
  • Issued: 10/08/1985
  • Est. Priority Date: 12/30/1982
  • Status: Expired due to Fees
First Claim
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1. A liquid filled electro-optic display cell having:

  • an enclosure for the liquid;

    a filling orifice in one of the walls of the enclosure, said orifice being surrounded by a rim which is raised;

    an impervious elastomer diaphragm in contact with said rim so as to seal the orifice;

    and a retaining means for retaining said diaphragm in contact with said rim while allowing it freedom to flex over a central portion of said orifice thereby to accommodate differential thermal expansion of the liquid and enclosure.

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