Liquid crystal display panel development method

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 ΔVdc;
• and
• determining a structure or material of said liquid crystal panel such that said range of optimal DC component variation ΔVdc becomes less than a given value;
• wherein said range of optimal DC component variation ΔVdc is defined as ΔVdc=|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.