Patent ID: 6600536
Filing Date: 2003-07-29
Classification: G02F

Abstract:
A reflection type liquid crystal display apparatus comprising:a pair of substrates; a pair of orientation films disposed between said pair of substrates; a liquid crystal layer disposed between said pair of orientation films; a plurality of electrodes disposed respectively opposing said substrates and said orientation films; a reflection layer disposed between a plurality of said electrodes and said substrates within a space defined between one of said substrates and one of said orientation films; and at least one thin film having an insulating property arranged between said plurality of said electrodes and said reflection layer; a first birefringent film, a second birefringent film and a polarizing film arranged outside of said pair of substrates; said liquid crystal layer being formed of a nematic liquid crystal having a twist angle within a range of greater than or equal to 220Â° and smaller than or equal to 270Â°; a product of anisotropy of refraction index of said liquid crystal layer and a thickness of said liquid crystal layer being greater than or equal to 0.74 &mgr;m and less than or equal to 0.82 &mgr;m, a product of anisotropy An of refraction index of said first birefringent film and a thickness thereof d being greater than or equal to 160 nm and less than or equal to 220 nm, and a product of anisotropy of said second birefringent film and a thickness thereof being greater than or equal to 370 nm and less than or equal to 470 nm; and with respect to a predetermined reference axis, an angle of an absorption axis of said polarizing film being greater than or equal to 120Â° and less than or equal to 170Â°, an angle of a lag axis of said first birefringent film being greater than or equal to 70Â° and less than or equal to 90Â°, and an angle of a lag axis of said second birefringent film being greater than or equal to 100Â° and less than or equal to 140Â°.