Patent ID: 7495727
Filing Date: 2009-02-24
Classification: G02F

Abstract:
1. A liquid crystal display apparatus comprising: a liquid crystal cell including a liquid crystal layer interposed between a first transparent substrate and a second transparent substrate, wherein a common electrode and a first alignment film are stacked, in this order, on an inner side of the first transparent substrate, a plurality of switching elements and a plurality of pixel electrodes connected to the plurality of switching elements are disposed on an inner side of the second transparent substrate, and a second alignment film is disposed on the switching elements and the pixel electrodes; a second phase plate, a first phase plate, and a first polarizing plate stacked, in this order, on an outer side of the first transparent substrate; and a third phase plate, a fourth phase plate, and a second polarizing plate stacked, in this order, on an outer side of the second transparent substrate, wherein: the liquid crystal cell has a plurality of pixel areas corresponding to the pixel electrodes and the pixel electrodes in predetermined pixel areas are reflective, the predetermined pixel areas being a reflective part configured to reflect incident light from the first transparent substrate and pixel areas other than the predetermined pixel areas being a transmissive part configured to pass light from the second transparent substrate to the first transparent substrate, and the liquid crystal cell, the first to fourth phase plates, and the first and second polarizing plates having the following optical characteristics: an axial direction of an absorption axis c of the first polarizing plate is within the range of (ψ+15°)−30° to (ψ+15°)+30°; retardation (Δnd an axial direction of a retardation axis d of the first phase plate is within the range of (ψ+30°)−15° to (ψ+30°)+15°; retardation (Δnd an axial direction of a retardation axis e of the second phase plate is within the range of (ψ+90°)−15° to (ψ+90°)+15°; retardation (Δnd retardation (Δnd retardation (Δnd an axial direction of a retardation axis f of the third phase plate is within the range of (ψ+90°)−15° to (ψ+90°)+15°; retardation (Δnd an axial direction of a retardation axis g of the fourth phase plate is within the range of (ψ+150°)−15° to (ψ+150°)+15°; and an axial direction of an absorption axis h of the second polarizing plate is within the range of (ψ+75°)−30° to (ψ+75°)+30°, where the axial direction (ψ+N°) (N representing an integer) represents an angle N to an alignment direction ψ of the liquid crystal, (ψ+N°) represents the angle N° to the alignment direction ψ in the counterclockwise direction with respect to the first substrate, and (ψ−N°) represents the angle N° to the alignment direction ψ in the clockwise direction with respect to the first substrate.