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LCD heater utilizing Z-axis conductive adhesive to attach bus bars to ito

  • US 5,886,763 A
  • Filed: 09/26/1997
  • Issued: 03/23/1999
  • Est. Priority Date: 09/26/1997
  • Status: Expired due to Term
First Claim
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1. A liquid crystal display comprising:

  • first and second polarizers sandwiching a liquid crystal layer therebetween;

    electrode means for applying a voltage across said liquid crystal layer;

    a heater for heating said liquid crystal layer, said heater including a heating conductive layer with first and second bus bars adhered thereto;

    each of said first and second bus bars including a metallic material that forms the majority of each bus bar, and a conductive coating that is coated on said metallic material; and

    wherein a flexible Z-axis conductive adhesive is utilized to adhere each of said first and second bus bars to said heating conductive layer so as to reduce thermal stresses induced on solder connections between said bus bars and wires soldered thereto, said Z-axis adhesive including a plurality of conductive particles therein and allowing current flow in substantially only the Z-axis direction between the heating conductive layer and the bus bars.

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