Fujifilm Corporation

Jun Ishiyama

Yujiro Yanai

Hirofumi Toyama

Ayako Muramatsu

Kunihiro Atsumi

Fumitake Mitobe

Masaki Hachiya

A laminate in which the occurrence of cracks is suppressed, and a laminate with a pressure-sensitive adhesive layer, a polarizing plate, and an image display device which use the laminate. The laminate includes a first optically anisotropic layer; and a second optically anisotropic layer, the first optically anisotropic layer and the second optically anisotropic layer being laminated directly or through an alignment film, in which the first optically anisotropic layer satisfies Expression (A) nx>ny, the second optically anisotropic layer satisfies Expression (B) nx<nz, the laminate satisfies Expressions (1) 100 nm≤Re(550)≤180 nm, Expression (2) Re(450)/Re(550)<1.0, Expression (3) Re(650)/Re(550)>1.0, Expression (4) −40 nm≤Rth(550)≤70 nm, and Expression (5) Rth(550)<Re(550)/2, and an endothermic peak temperature of the laminate observed by differential scanning calorimetry is 125° C. or lower.

Laminate, laminate with pressure-sensitive adhesive layer, polarizing plate, and image display device

Provided are an optical filter, an optical device, and a head-mounted display which have a high light transmittance in a front direction and a wide real field of view. The optical filter includes a first anisotropic absorption layer, a first retardation layer, and a second anisotropic absorption layer in this order, each of the first anisotropic absorption layer and the second anisotropic absorption layer contains a dichroic colorant, an absorption axis of the dichroic colorant is perpendicular to a main surface, and the first retardation layer has polar angle dependence of retardation that has asymmetry about a normal direction with respect to incident light hitting at least one incident surface including a normal of a layer surface of the first retardation layer.

Optical filter, optical device, and head-mounted display

A cellulose acylate film includes cellulose acylate and a compound A which has a group represented by the formula (G) as defined herein and in which a value obtained by dividing a molecular weight of the compound by a number of the groups represented by formula (G) contained in the compound is 200 or less, and a content of the compound A is 15% by weight or more based on a content of the cellulose acylate, the iodine diffusion index X as defined herein is less than 0.005 and the iodine diffusion index Y as defined herein is 0.015 or more.

Cellulose acylate film, production method of cellulose acylate film, stack, polarizing plate, and liquid crystal display device

There is provided a cellulose acylate film including a core layer and a skin layer, in which a mixed layer is formed between the core layer and the skin layer, wherein a cellulose acylate included in the core layer has an average acyl substitution degree Sof 2.00 to 2.55, a cellulose acylate included in the skin layer has an average acyl substitution degree Sof 2.60 to 2.95, and an average acyl substitution degree Sof the cellulose acylate of the mixed layer satisfies Equation (A1), and the mixed layer has a thickness of 100 nm to 300 nm: Equation (A1): S+0.05&#xd7;(S&#x2212;S)&#x3c;S&#x3c;S&#x2212;0.05&#xd7;(S&#x2212;S).

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Kanagawa, Japan

Jun Ishiyama