Fujifilm Corporation

Satomi Suzuki

Hideki Kaneiwa

Ichiro Amimori

Kouki Takahashi

Ichirou Amimori

Hiroyuki Yoneyama

Akira Ikeda

Katsumi Inoue

Masao Nakajima

Osamu Sawanobori

Wakahiko Kaneko

A product comprising a patterned optically anisotropic layer having two or more regions of different birefringence in the form of a pattern, which further comprises a semi-transmissive-half-reflective layer having a transmittance of 30% or higher and a reflectance of 30% or higher is provided. The product permits visualization of a latent image in the product through a polarizing plate as well as visualization of the information on the side opposite to the side to be viewed from.

Patterned birefringent product

A transparent product that gives an image only at one side, which can be used for an advertisement on the window or the like, which is a product that has a semi-transmissive-half-reflective layer having transmittance of 30% or higher and a reflectance of 30% or higher, a birefringent layer which is a patterned optically anisotropic layer having two or more regions of different birefringence in the form of a pattern or a driven-type optically anisotropic layer containing a liquid-crystal compound driven by voltage application to control the optical anisotropy, and a polarizing layer in this order and does not have, at the opposite side of the polarizing layer with respect to the birefringent layer, a polarizing layer, is provided.

Transparent product that gives image only at one side

A viewer for authenticating a birefringent pattern having at least two regions having a different birefringence from each other, wherein the viewer contains a polarizing plate and at least one optically anisotropic layer laminated on the polarizing plate, a front retardation of the at least one optically anisotropic layer is 5 nm or more and the total of the front retardation of the at least one optically anisotropic layer and a maximum value of front retardation of the birefringent pattern is greater than &#x3bb;/2.

Viewer and kit for authenticating birefringent pattern, authenticity-verifying medium and method of verifying authenticity

A novel transfer material is disclosed. The transfer material comprises, at least, a support, and, thereon, an optically uniaxial or biaxial anisotropic layer and a photosensitive polymer layer. A novel process for producing a liquid crystal cell substrate is also disclosed. The process comprises, at least, [1] laminating a transfer material as set forth in any one of claimstoon a substrate; [2] removing the support from the transfer material laminated on the substrate; and [3] exposing the photosensitive polymer layer disposed on the substrate to light.

Transfer material, and process for producing liquid crystal cell substrate and liquid crystal display device using the same

A novel optical compensation sheet is disclosed. The sheet comprising a polymer layer formed by coating and, drying a solution comprising a polymer compound and a solvent composition comprising 20% by weight or more of water; and an optically anisotropic layer formed on the surface of the polymer layer by hardening a liquid crystal layer comprising at least one liquid-crystalline compound under irradiation of ionizing radiation at a film surface temperature from 70 to 160&#xb0; C.; wherein a frontal retardation (Re) value of the optically anisotropic layer is not zero, and the optically anisotropic layer gives substantially equal retardation values for light of a wavelength &#x3bb; nm coming respectively in a direction rotated by +40&#xb0; and in a direction rotated by &#x2212;40&#xb0; with respect to a normal direction of a layer plane using an in-plane slow axis as a tilt axis (a rotation axis).

Optical compensation sheet, process for producing the same, and polarizing plate and liquid crystal display device using the same

A medium for preventing forgery having a hologram layer and at least one patterned optically anisotropic layer,

Medium for preventing forgery

An object of the present invention is to provide an optical film assured of reflectance low enough to suppress glaring and excellent in the scratch resistance, antifouling property and antistatic property, and another object is to provide a polarizing plate and a display, using such an antireflection film. These objects can be attained by an optical film, particularly, an antireflection film, containing a support and a thin film layer formed by coating a composition containing fine particles and a binder, in which the SP value ((B/A)&#xd7;100)) which is a ratio of an average particle filling factor (B) in the region of 30% of the film thickness on the upper side opposite the support to an average particle filling factor (A) in the entirety of the thin film layer is 90% or less; and a polarizing plate and an image display, using the optical film.

Growing community of inventors

Minami-ashigara, Japan

Satomi Suzuki