Patent ID: 11927850
Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A liquid crystal display device comprising:
a liquid crystal panel;
an optical element; and
a backlight, the liquid crystal panel, the optical element, and the backlight being arranged in this order from a viewing surface side,
wherein the optical element includes a first polarizer, a retardation layer, and a second polarizer,
the first polarizer, the retardation layer, and the second polarizer are arranged in this order from the viewing surface side,
the first polarizer and the second polarizer are reflection polarizers,
a reflection axis of the first polarizer and a reflection axis of the second polarizer are parallel to each other, and
in oblique directions at an azimuth of 0°, an azimuth of 45°, and an azimuth of 90° at a polar angle of 60°, a polarization state of light incident on the first polarizer is elliptical polarization.