| 摘要 |
In a liquid-crystal display ( 10 ), unpolarized light from a light source ( 12 ) passes through a linear polarization separation layer ( 14 ) and strikes a liquid-crystal cell ( 16 ). The liquid-crystal cell ( 16 ), in response to an applied electrical field, changes the direction of a director, so as to change the direction of the electrical field oscillation vector of the incident linearly polarized light by substantially 0 to 90°, this light then striking a dichroic linear polarization layer ( 18 ) on the surface, whereby only a component coincident with the polarization transmission axis thereof is allowed to exit to the outside. The dichroic linear polarization layer ( 18 ) transmits 50% of this incident light, and absorbs the remaining 50%.
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