Patent ID: 8023094
Filing Date: 2011-09-20
Classification: G02F

Abstract:
1. An STN liquid crystal display comprising: a back light using a monochromatic light source for emitting monochromatic light; and a liquid crystal display cell including opposing first and second transparent substrates, first and second transparent electrodes formed above opposing surfaces of the first and second transparent substrates, respectively, first and second alignment films formed above the first and second transparent substrates, respectively, covering the first and second transparent electrodes, a liquid crystal layer containing chiral agent and squeezed between the first and second transparent substrates, and first and second polarizers disposed outside the first and second transparent substrates, respectively, wherein: a twist angle of liquid crystal molecules of the liquid crystal layer is 155° to 210°, and a first angle between a polarizing axis direction of the first polarizer and an alignment direction of liquid crystal molecules of the liquid crystal layer in contact with the first transparent substrate, and a second angle between a polarizing axis direction of the second polarizer and an alignment direction of liquid crystal molecules of the liquid crystal layer in contact with the second transparent substrate, are each larger than 0° and smaller than 90°, and a sum of the first and second angles is 90°±7°.