Dai Nippon Printing Co., Ltd.

Nikon Corporation

Norihisa Moriya

Shinji Hayashi

Tomoya Kawashima

Kanami Ikegami

Yukio Taniguchi

Tomonori Nishida

Satoshi Mitsuzuka

Masayuki Sekido

Toru Iwane

Masachika Watanabe

Yasuyuki Oyagi

Yuji Nakatsugawa

Atsushi Suemasu

Kouji Ishizaki

Yukiko Iizuka

There are provided a phase difference control component, which can realize a liquid crystal display device having a wide angle of visibility, has excellent phase difference symmetry and can realize optical compensation, and a process for producing the same. The phase difference control component comprises a base material; and a phase difference control layer formed of a fixed liquid crystal material provided on the base material through an aligning film and is characterized in that the angle of liquid crystal molecules, present at the interface of the aligning film and the phase difference control layer, to the base material being substantially 0 (zero) degree.

Process for producing a phase difference control component and liquid crystal display device

A shade () includes slats () that are arranged in an up and down direction. One or more slat(s) () forming a part of the slats, which is located above in the up and down direction, includes a transparent portion that enables visible light to transmit through the slat. A traveling direction of light transmitting through the transparent portion is bent.

Shade

A light control device includes: a sheet-like light control member; and a support device supporting the light control member such that an orientation of the light control member is variable. The light control member includes: first portions arranged in a first direction along a sheet plane of the light control member, each first portion extending in a second direction that is in non-parallel with the first direction and along the sheet plane of the light control member; and second portions arranged in the first direction alternately with the first portions, each second portion extending in the second direction.

Light control device

An organic EL device includes an organic EL emitter that emits blue light and a blue color filter through which the light emitted from the organic EL emitter passes. The blue color filter contains a coloring material selected from the group consisting of a triarylmethane dye, a lake pigment, a copper-phthalocyanine pigment, and a mixture of a copper-phthalocyanine pigment and a dioxazine pigment. The chromaticity of the light that has passed through the blue color filter after being emitted from the organic EL emitter, is in the range defined by lines connecting three chromaticity coordinates (0.150, 0.060), (0.143, 0.031), and (0.130, 0.049) on the CIE chromaticity diagram.

Organic EL device, color filter, and organic EL display

An organic EL device includes an organic EL emitter that emits blue light and a blue color filter through which the light emitted from the organic EL emitter passes. The blue color filter contains a coloring material selected from the group consisting of a methine dye, a copper-phthalocyanine pigment, and a mixture of a copper-phthalocyanine pigment and a dioxazine pigment. The chromaticity of the light, the light that has passed through the blue color filter after emitted from the organic EL emitter, is in the range defined by lines connecting three chromaticity coordinates (0.140, 0.080), (0.136, 0.040), and (0.118, 0.070) on the CIE chromaticity diagram.

Organic el device with color filter, and organic EL display

A plate inspection system and a plate inspection method with which irregularities in phase difference caused in a retardation layer can be efficiently detected. The inspection system is for inspecting a plate to be inspected having a retardation layer. The plate inspection system comprises a polarized-light source for irradiating a polarized light and an observation-side polarizer placed on the observation side. In the inspection system, a plate to be inspected is placed between the polarized-light source and the observation-side polarizer so that the plate to be inspected is irradiated with polarized light from the polarized-light source. The position of at least the observation-side polarizer or the plate to be inspected is changeable relative to the polarized-light source.

Plate inspection system and plate inspection method

The invention provides a retardation-controlling optical member that includes a retardation layer obtained by aligning and fixing crosslinkable liquid crystal molecules and columnar structures disposed on the retardation layer. When a liquid crystal cell is formed by use of the retardation-controlling optical member, the columnar structures are effectively inhibited from subsiding in the retardation layer to locally make the cell gap smaller even when pressure is externally applied in a thickness direction of the liquid crystal cell. A sum total of lower bottom areas of columnar structures disposed on a retardation layer is made larger sufficiently compared to a total area of, in particular, an effective display region of a retardation layer surface where the columnar structures are disposed, whereby pressure applied from a thickness direction is dispersed.

Optical member with retardation control function and liquid crystal display

A color filter of the present invention includes a substrate having light transmissivity, a color layer provided on the lower surface of the substrate and including a plurality of color pattern layers, each transmitting visible light of different color, and a phase difference control layer including a plurality of phase difference pattern layers and optically isotropic layers and provided on the lower surface of the color layer, wherein a color differentiation region includes a color pattern layer and a phase difference pattern layer and an optically isotropic layer that are provided on the lower surface of the color pattern layer is formed for each color of the color pattern layer, and the thickness of the phase difference pattern layer and the thickness of the color pattern layer are respectively different for each color differentiation region.

Color filter, semi-transmissive semi-reflective liquid-crystal display device, method for forming phase difference control layer, and method for manufacturing color filter

There is provided a liquid crystal composition capable of inexpensively and easily forming a phase difference layer excellent in mechanical strength such as hardness and in substrate adhesion properties, a color filter using the same, and a liquid crystal display apparatus using the color filter. Specifically, provided are a liquid crystal composition, a color filterprovided with a phase difference layerproduced by applying the liquid crystal composition onto a transparent substrateand immobilizing, and a liquid crystal display apparatususing the color filteras a display side substrate. The liquid crystal composition contains therein: one kind or two or more kinds of crosslinkable liquid crystal compounds; at least one kind of silane coupling agents selected from sulfide silane coupling agents, mercapto silane coupling agents, amino silane coupling agents and (meth)acryloyl silane coupling agents; a multifunctional (meth)acrylate having an alcoholic hydroxyl group and a multifunctional (meth)acryloyl group in a molecular structure thereof; and an alicyclic epoxy compound.

Liquid crystal composition, color filter and liquid crystal display

The invention intends to provide a liquid crystal display device that, even when a liquid crystal is fixed without completely maintaining a homeotropically aligned state, may effectively inhibit light from leaking. A liquid crystal display deviceincludes: substrates () that oppose to each other with a liquid crystal layercontaining a liquid crystal variable in an aligned state interposed therebetween; and a first polarization plateand a second polarization platedisposed with the opposite substrates interposed therebetween so that their absorption axes are orthogonal to each other, wherein a birefringent layeris formed between the first polarization plateand the second polarization plateby polymerizing a polymerizable liquid crystal, with an optical axis thereof inclined to a thickness direction of the birefringent layer, and the optical axis of the birefringent layeris inclined, with respect to a thickness direction of the birefringent layer, in a direction of an absorption axis of any one of the first polarization plateand the second polarization plate

Liquid crystal display device

Provided is a projection system capable of obtaining a sharp contrast without being influenced by an ambient light, the projection system including a projection screen, containing a substrate and a polarized light selective-reflection layer formed on the substrate that diffuse-reflects right-handed circularly polarized light or left-handed circularly polarized light. An image is displayed by reflecting an image light irradiated from a projector on the projection screen. An external light screen is installed at an external light entrance and disposed in a sequence of a linearly polarizing plate and a retardation plate from an external side, and the external light screen circularly polarizes a light in reverse direction to the circularly polarized light diffuse-reflected by the polarized light-selective reflection layer. A transmission axis of the linearly polarizing plate is in a horizontal direction.

Projection system

The main object of the present invention is to present a projection system excellent in visibility from inside of projection system to outside, and capable of obtaining a sharp contrast display without being influenced by the ambient light. The present invention provides a projection system comprising: a projection screen, containing a substrate and a polarized light selective-reflection layer formed on the substrate and diffuse-reflects right-handed circularly polarized light or left-handed circularly polarized light, which displays an image by reflecting an image light irradiated from a projector; a projector for projecting an image light on the projection screen; and an external light screen installed at an external light entrance, disposed in a sequence of a linearly polarizing plate and a retardation plate from an external side, and circularly polarizes a light in reverse direction to the circularly polarized light diffuse-reflected by the polarized light-selective reflection layer, wherein a transmission axis of the linearly polarizing plate is in vertical direction.

An object of the invention is to provide a liquid crystal composition intended to be applied to the surface of a base material to form a phase difference layer, the liquid crystal composition being capable of forming a phase difference layer well indicating homeotropic orientation without the presence of an oriented film, even if the liquid crystal composition is directly applied to the base material surface, as well as a phase difference layer formed by the liquid crystal composition, a color filter and a liquid crystal display apparatus using the phase difference layer, and further a method of forming the phase difference layer. To a liquid crystal composition containing one kind or two or more kinds of crosslinking liquid crystal compounds is further added at least an amino-based silane coupling agent to prepare a liquid crystal composition. The liquid crystal composition is directly applied to the surface of a base material to orient the crosslinking liquid crystal compound on the base material surface in a direction perpendicular to the base material surface, and then the resulting material is crosslinking polymerized to form a phase difference layer.

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Tokyo, Japan

Norihisa Moriya