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Liquid crystal display matrix including a non-linear device

  • US 4,523,811 A
  • Filed: 01/15/1982
  • Issued: 06/18/1985
  • Est. Priority Date: 01/16/1981
  • Status: Expired due to Term
First Claim
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1. A matrix liquid crystal display device including a metal-insulator-metal (MIM) construction, comprising:

  • a first substrate,a plurality of liquid crystal display picture element electrodes disposed on the first substrate and spaced apart in a matrix array of columns and rows;

    a plurality of leads formed on the first substrate between one of the associated columns or rows of picture element electrodes;

    a non-linear device coupled in series between each picture element electrode and the associated lead, the non-linear device including two MIM switches connected in parallel with each other, wherein one of the MIM switches comprises a lower metal thin film on the surface of the substrate coupled to said lead, an insulator thin film on said lower metal thin film and an upper metal thin film disposed on the insulator thin film and including a lead portion coupled to the associated picture element electrode; and

    the other MIM switch comprises a lower metal thin film including a MIM portion and a lead portion on said substrate, said lead portion coupled to the associated picture element electrode and said MIM portion in the region between said lead and said picture element electrode, an insulator film on said lower metal thin film and an upper metal thin film disposed on the MIM portion of said insulator and the lower metal thin film and coupled to said lead.

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