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Transmission type liquid crystal display device having capacitance ratio of 10% or less and charging rate difference of 0.6% or less

  • US 5,953,084 A
  • Filed: 07/06/1998
  • Issued: 09/14/1999
  • Est. Priority Date: 08/11/1995
  • Status: Expired due to Term
First Claim
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1. A liquid crystal display device, comprising:

  • gate lines;

    source lines; and

    switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, whereinan interlayer insulating film is above the switching element, the gate line, and the source line,the pixel electrode is on the interlayer insulating film,wherein a capacitance ratio is represented by expression;

    
    
    space="preserve" listing-type="equation">Capacitance ratio=C.sub.sd /(C.sub.sd +C.sub.ls), andthe ratio is 10% or less, wherein Csd denotes a capacitance value between the pixel electrode and the source line, and Cls denotes a capacitance value of a liquid crystal portion corresponding to each pixel in an intermediate display state.

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