Liquid Crystal Display Device
AssigneeFUJIFILM Corporation
InventorsNobutaka Fukagawa, Katsumi Sasata
Life of this patent
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Abstract
A cellulose acylate film, which has an in-plane retardation (Re) and a retardation in a thickness direction (Rth) satisfying relations of equations (1) to (6) and has a thickness of 30 μm or greater but less than 70 μm: 20 nm<Re(548)<100 nm (1) 100 nm<Rth(548)<400 nm (2) 0.5≦Re(446)/Re(548)≦0.90 (3) 1.05≦Re(629)/Re(548)≦1.50 (4) 0.5≦Rth(446)/Rth(548)≦0.95 (5) 1.05≦Rth(629)/Rth(548)≦1.50 (6).
Claims14
A cellulose acylate film, which has an in-plane retardation (Re) and a retardation in a thickness direction (Rth) satisfying relations of equations (1) to (6) and has a thickness of 30 μm or greater but less than 70 μm:
- 20 nm<Re(548)<100 nm (1)
- 100 nm<Rth(548)<400 nm (2)
- 0.5≦Re(446)/Re(548)≦0.90 (3)
- 1.05≦Re(629)/Re(548)≦1.50 (4)
- 0.5≦Rth(446)/Rth(548)≦0.95 (5)
- 1.05≦Rth(629)/Rth(548)≦1.50 (6).
Dependencies are inferred from the claim text.