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Active matrix substrate, for use in a liquid crystal display and method for producing the same

  • US 5,877,832 A
  • Filed: 03/12/1997
  • Issued: 03/02/1999
  • Est. Priority Date: 03/15/1996
  • Status: Expired due to Term
First Claim
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1. A transparent active matrix substrate, comprising:

  • a switching device;

    a scanning line electrically connected to the switching device;

    a signal line electrically connected to the switching device and arranged so as to cross the scanning line;

    a transparent interlayer insulation layer formed over the switching device, the scanning line and the signal line, the transparent interlayer insulation layer having a contact hole; and

    a transparent picture element electrode provided on the transparent interlayer insulation layer and electrically connected to the switching device through the contact hole,wherein the transparent picture element electrode has a recessed portion in the contact hole and a non-recessed portion over the interlayer insulation layer, anda buried portion formed of a transparent insulation material is provided in the recessed portion over the transparent picture element electrode so that a top surface of the buried portion and a top surface of the non-recessed portion of the transparent picture element electrode are at an identical level.

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