Dai Nippon Printing Co., Ltd.

Dnp Fine Chemicals Co., Ltd.

Yoshihito Maeno

Hiroyuki Ohtaki

Minoru Azakami

Koji Eto

Sakurako Hatori

Toshio Yoshihara

Michihiro Ogura

Hiroyuki Otaki

Hiroaki Segawa

Masato Okada

Tomoki Murata

Daisuke Endo

Hiroshi Oshima

A main object of the present invention is to provide a method of producing a volume hologram laminate which can regenerate a hologram image in an arbitrary wavelength by a simple process. To attain the object, the present invention provides a method of producing a volume hologram laminate using a volume hologram forming substrate which comprises: a substrate, a volume hologram layer formed on the substrate and containing a photopolymerizable material, a resin layer, formed on the substrate so as to contact to the volume hologram layer, containing a resin and a polymerizable compound, characterized in that the producing method comprises processes of: a hologram recording process to record a volume hologram to the volume hologram layer, a substance transit process of transiting the polymerizable compound to the volume hologram layer, and an after-treatment process of polymerizing the polymerizable compound.

Method of producing volume hologram laminate

The present invention is to provide a colorant dispersion liquid which is able to form a high-luminance coating film having better heat resistance compared to the case of using conventional dyes. Disclosed is a colorant dispersion liquid containing (A) a colorant, (B) a dispersant, and (C) a solvent, wherein the colorant (A) contains a color material represented by the following general formula (I) and a xanthene-based dye; a solubility of the color material in the solvent (C) and that of the xanthene-based dye in the solvent (C) are each 0.2 (g/100 g solvent) or less at 23&#xb0; C.; and the color material and the xanthene-based dye are dispersed in the solvent (C) by the dispersant (B): (The symbols in the formula are as described in the Description.)

Colorant dispersion liquid, method for producing colorant dispersion liquid, color resin composition for color filters, color filter, liquid crystal display device, and organic light-emitting display device

This invention provides a volume hologram photosensitive composition, which can realize a hologram having an excellent brightness and, at the same time, having excellent heat resistance and mechanical strength, and a photosensitive medium for volume hologram recording using the volume hologram photosensitive composition. The volume hologram photosensitive composition comprises at least a photopolymerizable monomer, a photopolymerization initiator, a sensitizing dye for sensitizing the initiator, and a binder resin. The binder resin comprises a heat curing resin, and optionally a thermoplastic resin, and the thermoplastic resin is contained in an amount of 0 to 25% by weight based on the total solid content of the photosensitive composition.

Volume hologram photosensitive composition

A method of producing a volume hologram laminate which can regenerate a hologram image in an arbitrary wavelength by a simple process. The method uses a volume hologram forming substrate which includes: a substrate, a volume hologram layer formed on the substrate and containing a photopolymerizable material, a resin layer, formed on the substrate so as to contact to the volume hologram layer, containing a resin and a polymerizable compound. The producing method includes processes of: a hologram recording process to record a volume hologram to the volume hologram layer, a substance transit process of transiting the polymerizable compound to the volume hologram layer, and an after-treatment process of polymerizing the polymerizable compound.

The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R&#x2014;R&#x2014;(CF)n-R&#x2014;Rwherein Rand Rare photoreactive groups which can be bonded to each other by photoreaction, and each of Rand Ris independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.

Photosensitive composition for volume hologram recording, photosensitive medium for volume hologram recording and volume hologram

A negative type resist composition for a color filter including (A) a pigment dispersant, (B) a pigment, (C) an alkaline-soluble resin, (D) a polyfunctional monomer, (E) a photo initiator and (F) a solvent.

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Tokyo-to, Japan

Yoshihito Maeno