| 摘要 |
PURPOSE:To enlarge an angle of view field of a liquid crystal display device by laying a transparent plate provided with prismatic fine projections on a polarizing plate at the view side and scattering the transmitted light through the polarizing plate. CONSTITUTION:Incident light is polarized by a polarizing plate 1a and introduced into a liquid crystal 3 through glass 2a. The liquid crystal 3 acquires rotatory power by the effect of electric field because the molecules of the liquid crystal are twisted by 90 deg. and oriented. The light is rotated by 90 deg. along the molecular axis and is transmitted through a polarizing plate 1b after passing through a glass plate 2b. A transparent mat 4 provided with small prismatic projections 5 are formed on the polarizing plate 1b which scatters the transmitted light by the prisms 5. By the presence of the scattering means, the display device is made more easily visible. |
