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Liquid crystal display panel capable of reducing persistence degree and development method thereof

  • US 20070008476A1
  • Filed: 09/15/2006
  • Published: 01/11/2007
  • Est. Priority Date: 10/31/2000
  • Status: Active Grant
First Claim
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1. A liquid crystal panel development method, said liquid crystal panel comprising:

  • first and second substrate, said first substrate including a first electrode, said first or second substrate including a second electrode, said first and second electrode being for a display voltage to be applied therebetween; and

    liquid crystal interposed between said first and second substrates;

    said method comprising the steps of;

    applying a voltage signal between said first electrode and said second electrode, said voltage signal being composed of an AC voltage component and a DC voltage component Vdc, said AC voltage component having an amplitude Vac;

    changing said amplitude Vac and said DC voltage component Vdc to measure the range of optimal DC component variation Δ

    Vdc; and

    determining a structure or material of said liquid crystal panel such that said range of optimal DC component variation Δ

    Vdc becomes less than a given value;

    wherein said range of optimal DC component variation Δ

    Vdc is defined as Δ

    Vdc=|Vdcb−

    Vdcw|, wherein Vdcb is a value of said DC voltage component Vdc at which a range of transmittance variation is the minimum when said DC voltage component Vdc is changed with said amplitude Vac being fixed at a value for displaying black, wherein Vdcw is a value of said DC voltage component Vdc at which a range of transmittance variation is the minimum when said DC voltage component Vdc is changed with said amplitude Vac being fixed at a value for displaying white.

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