| 摘要 |
PURPOSE:To improve time division driving characteristic by specifying angle of torsion, angle formed by light absorption axes or polarization axes of a pair of polarizing plates, and product of refractive index anisotropy and thickness of a liquid crystal layer. CONSTITUTION:An upper electrode substrate and a lower electrode substrate are arranged opposite to each other to make the direction 6 of rubbing of the upper electrode substrate nearly conform to liquid crystal molecule orientation and the direction 7 of rubbing of the lower electrode substrate nearly conform to liquid crystal molecule orientation and to make the direction and angle 10 of liquid crystal molecule in the range of above 200 deg.. On the other hand, the upper polarizing plates is placed on the outer face of the upper electrode substrate and the lower polarizing plate is placed on the outer face of the lower electrode substrate to make the angle 11 formed by the absorption axis 8 of the upper polarizing plate and absorption axis 9 of the lower polarizing plate within the range from 60 deg. to 120 deg.. It is desirable to make the product of refractive index anisotropy DELTAn of the liquid crystal and thickness (d) of the liquid crystal layer within the range from 0.2mum to 0.7mum. Thereby, sufficient contrast can be obtained in time division driving when duty ratio is less than 1/100.
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