Patent ID: 6151088
Filing Date: 2000-11-21
Classification: G02F

Abstract:
A liquid crystal display apparatus comprising:a liquid crystal cell having a structure in which a liquid crystal layer is sandwiched between a pair of transparent substrates, said pair comprised of an upper substrate and a lower substrate, each having at least one electrode, and liquid crystal molecules in said liquid crystal layer are oriented substantially in parallel to the surface of each of said substrates and twisted at an angle in the thickness direction of said liquid crystal layer when voltage is not applied,a pair of polarizers, said pair comprised of an upper polarizer and a lower polarizer, disposed so as to sandwich said liquid crystal cell therebetween,wherein said liquid crystal molecules in said liquid crystal layer are comprised of liquid crystal molecules in a middle portion of said layer;wherein an angle formed between the polarized light transmission axis of said upper polarizer and the orientation direction of liquid crystal molecules in the middle of said liquid crystal layer is less than 10.degree.; andwherein an angle between the polarized light transmission axis of said lower polarizer and the orientation direction of said liquid crystal molecules in the middle of said liquid crystal layer is less than 10.degree.;and wherein a change of a retardation of each of said substrates on tilting angle 50.degree. from a retardation of each of said substrates no tilting is less than 80 nm.