LIQUID CRYSTAL DISPLAY APPARATUS AND METHOD FOR ENHANCING LUMINANCE EFFICIENCY THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal display (LCD) apparatus and to provide a method for enhancing luminance efficiency thereof.

SOLUTION: The LCD apparatus includes a first polarizer, a half-wavelength retardation plate, a liquid crystal cell and a second polarizer. The LCD apparatus further has a backlight module for generating first polarized light. The first polarizer is disposed opposite to the backlight module and has a transmission axis. The half-wavelength retardation plate is disposed between the backlight module and the first polarizer. Second polarized light parallel to the transmission axis is generated from the first polarized light passing through the half-wavelength retardation plate. The second polarizer is disposed opposite to the first polarizer. The liquid crystal cell is disposed between the first polarizer and the second polarizer, and the second polarized light is emitted out of the LCD apparatus through the first polarizer, the liquid crystal cell and the second polarizer.

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