LIQUID CRYSTAL DISPLAY DEVICE WIDE IN VIEWING ANGLE

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal display device which is made thin in thickness and wide in viewing angle.

SOLUTION: The device is provided with at least a back light system in which light beams from a diffused light source are made into parallel employing a polarizing element (A). The element (A) is provided with a phase difference layer (b) between reflection polarizing elements (a) having at least two layers in which wavelength bands of selective reflection of polarized light beams are mutually overlapped. The device is also provided with liquid crystal cells through which light beams being made into parallel beams are passed, polarizing plates arranged on both sides of the liquid crystal cells and a visual field angle enlarging layer (W) which is arranged on the visually recognizing side of the liquid crystal cells and diffuses the passed light beams.

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