Phase retarder and liquid crystal display using the same

Details Phase retarder and liquid crystal display using the same Phase retarder and liquid crystal display using the same

G - Physics

02

B

88/117, 345/8

G02B 27/28 (2006.01) G02B 5/30 (2006.01) G02F 1/133 (2006.01)

Patent

CA 1312759

ABSTRACT OF THE DISCLOSURE A phase retarder obtained by uniaxially stretching a thermoplastic resin film, whose retardation value ranges from 30 to 1200 nm and whose color difference .DELTA.E* is not more than 30 as defined with the phase retarder being set between crossed polarizers in such a manner that the optical axis thereof makes an angle of 45° with respect to the planes of polarization of the polarizers, and a liquid crystal display using the phase retarder are disclosed. The phase retarder has a fixed optical axis, a retardation value suited for new optical uses including liquid crystal displays, and freedom from optical color unevenness. The liquid crystal display using the phase retarder exhibits markedly improved image quality.

570770

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