Patent ID: 6233030
Filing Date: 2001-05-15
Classification: G02F

Abstract:
A liquid crystal display apparatus comprising:first and second transparent substrates having optical anisotropy, said first and second transparent substrates being spaced apart substantially in parallel to each other to form a gap therebetween;a super twisted nematic liquid crystal body comprising liquid crystal molecules and filling the gap between said first and second transparent substrates;an orientation layer configured to urge said liquid crystal molecules of said super twisted nematic liquid crystal body to orient in a first direction in an inner surface of said first transparent substrate and in a second direction in an inner surface of said second transparent substrate, the first direction being more than 90.degree. to said second direction;at least one phase retarder plate disposed parallel to said first and second transparent substrates and outside the first or second transparent substrate; andat least one polarizing plate disposed parallel to said first and second transparent substrates and outside the first or second transparent substrate,whereinan angle between an absorption axis of said at least one polarizing plate and a direction of the largest refraction index of said at least one phase retarder plate disposed adjacent to the at least one polarizing plate is 45.degree..+-.22.5.degree.;an angle between an absorption axis of said at least one polarizing plate and an orientation direction of the liquid crystal molecules in the inner surface of said second transparent substrate adjacent to the at least one polarizing plate is 45.degree..+-.22.5.degree.;a retardation value of said first and second transparent substrates is less than 50 nm;an angle between a direction of the largest refraction index of said first transparent substrate and an orientation direction of the liquid crystal molecules in the inner surface of the first transparent substrate is within a range of -40.degree. to 40.degree.; andan angle between a direction of the largest refraction index of the second transparent substrate and a direction perpendicular to the orientation direction of the liquid crystal molecules in the inner surface of the second transparent substrate is within a range of -40.degree. to 40.degree..