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Liquid crystal display having high aperture ratio and high transmittance and method of manufacturing the same

  • US 6,281,953 B1
  • Filed: 08/23/1999
  • Issued: 08/28/2001
  • Est. Priority Date: 08/24/1998
  • Status: Expired due to Term
First Claim
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1. A method of manufacturing a liquid crystal display having high aperture ratio and high transmittance comprising the steps of:

  • forming a gate bus line and a common signal line on a lower substrate;

    forming a gate insulating layer on the lower substrate in which the gate bus line and the common signal line are formed;

    forming a channel layer on a selected portion of the gate insulating layer comprising the gate bus line;

    forming a source and a drain electrodes so as to overlap with both sides of the channel layer, and a data bus line being arranged perpendicular to the gate bus line;

    etching the gate insulating layer so as to expose a selected portion of the common signal line;

    forming a counter electrode by depositing an ITO layer on the gate insulating layer, and by patterning a selected portion thereof so as to contact with the exposed common signal line;

    depositing a passivation layer over the gate insulating layer in which the counter electrode is formed;

    etching the passivation layer so as to expose a selected portion of the drain electrode; and

    forming a pixel electrode, by depositing the ITO layer on the passivation layer so as to contact to the exposed drain electrode, and by patterning a selected portion of the ITO layer so that a fringe field is formed by being overlapped with the counter electrode.

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