Disclosed is a liquid crystal display device including a liquid crystal
layer sandwiched between two substrates; two polarizers each provided on
an outer side of respective one of the first and second substrates; and a
compensation film provided between the polarizer and the substrate,
wherein the retardation of the biaxial film satisfies the following
formulae (1)-(3) and/or (4)-(5):
1.ltoreq.R.sub.0(450)/R.sub.0(.lamda..sub.0).ltoreq.1.3 (1)
1.1.ltoreq.R.sub.0(650)/R.sub.0(.lamda..sub.0).ltoreq.2.1 (2) 100
nm.ltoreq.R.sub.0(.lamda..sub.0).ltoreq.240 nm (3)
1.ltoreq.R.sub.0(380)/R.sub.0(.lamda..sub.0).ltoreq.2 (4)
1.2.ltoreq.R.sub.0(780)/R.sub.0(.lamda..sub.0).ltoreq.2.7 (5) where
R.sub.0(380), R.sub.0(450), R.sub.0(650), R.sub.0(780) and
R.sub.0(.lamda..sub.0) represent the retardation of the biaxial film at
wavelengths of 380 nm, 450 nm, 650 nm, 780 nm and .lamda..sub.0,
respectively, and .lamda..sub.0 is the value calculated by
.lamda..sub.0=[n.sub.e-n.sub.o].times.d/k (where n.sub.e and n.sub.o
represent the refractive indices of the liquid crystal, d represents the
cell gap defined between the two substrates, and k is a constant,
0.55.ltoreq.k .ltoreq.1).