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Liquid crystal display apparatus serving both as transmission type and reflection type and method of manufacturing the same

  • US 6,924,859 B2
  • Filed: 01/29/2003
  • Issued: 08/02/2005
  • Est. Priority Date: 01/31/2002
  • Status: Active Grant
First Claim
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1. A liquid crystal display apparatus comprising:

  • a first substrate;

    a second substrate having an inner surface opposing the first substrate;

    a liquid crystal placed between the first and second substrates;

    a plurality of light-transmitting pixel electrodes arranged between the inner surface of the second substrate and the liquid crystal;

    a plurality of switching elements each comprising a thin transistor including a gate electrode, a source electrode and a drain electrode, wherein each of the plurality of switching elements is electrically connected to a corresponding one of the pixel electrodes;

    a plurality of reflecting layers, wherein each of the plurality of reflecting layers is placed between a corresponding one of the pixel electrodes and the inner surface of the second substrate and has an area smaller than an area of the corresponding pixel electrode; and

    an insulating layer provided between the pixel electrodes and the reflecting layers;

    wherein the reflecting layers and the gate electrode of each of the switching elements are provided in a same plane of the liquid crystal display apparatus and are formed from a same material, and the reflecting layers are positioned independently so as to be disconnected from each other and from the electrodes of the switching elements; and

    wherein an oxide film is provided on a surface of the gate electrode of each of the switching elements but not on a surface of each of the reflecting layers.

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