Liquid crystal display device

A liquid crystal display device including a first substrate capable of transmitting light therethrough; a second substrate at which a pixel including a reflection region and a transmission region is formed; and a liquid crystal section held by the first substrate and the second substrate that are bo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jisaki, Makoto, Yamaguchi, Hidemasa, Kida, Yoshitoshi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A liquid crystal display device including a first substrate capable of transmitting light therethrough; a second substrate at which a pixel including a reflection region and a transmission region is formed; and a liquid crystal section held by the first substrate and the second substrate that are bonded together through a gap. In the liquid crystal display device, the liquid crystal section is oriented vertically with respect to the substrates when no voltage is applied thereto; and a pair of retardation films are disposed on both sides of the vertically oriented liquid crystal section, and have symmetrical phase characteristics over a visible wavelength region. Lagging phase axes of the pair of retardation films intersect each other, with an intersecting angle thereof being set in a range of from 90°±10°. Relative shifts in phase differences of the pair of retardation films are controlled within a range of ±30 nm. The reflective-and-transmissive liquid crystal display device makes it possible to provide, in a transmission display mode, a high contrast and a high transmittance ratio, and, in a reflection display mode, a high contrast and a high reflection ratio.