Fujifilm Corporation

Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Mitsubishi Denki Kabushiki Kaisha

Nippon Oil Company

Other

Sanyo Electric Co., Ltd.

Mitsubishi Wireless Communications, Inc.

Hiroshi Matsuyama

Wataru Hoshino

Keita Takahashi

Teruki Niori

Taiji Katsumata

Shunya Katoh

Hiroshi Sato

Masaru Yoshikawa

Makoto Ishiguro

Naozumi Shiraiwa

Jun Takeda

Shinichi Morishima

Daisuke Hayashi

Ryoji Goto

Yoshiaki Hisakado

Eitaro Miyake

Naoki Koito

Kazuo Morohashi

Takahiro Ohno

Yuki Nakazawa

Hiroyuki Ishikawa

Kazuya Kodani

Tatsuya Hirakawa

Shinji Matsumoto

Kiyoshi Takeuchi

Naoyoshi Yamada

Yasuhiro Ishiwata

Aiko Yoshida

Shinya Watanabe

Takeshi Imai

Shinichi Yoshinari

Robin U Roberts

Akira Okubo

Fumitake Mitobe

Naoya Nishimura

Haruya Nakai

Shigeru Oshima

Nobuyuki Akutagawa

Katsuji Kaminishi

Michio Arai

Akihiro Sugita

Yuuta Fujino

Yoshiaki Takada

Masatoshi Mizumura

Rie Takasago

Minoru Uemura

Hiroyuki Hagio

Shigeaki Hayase

Shun Inoue

Takehiro Kasahara

Keisuke Yoshimasa

Yumi Kato

Masaaki Nemoto

Keisuke Ota

Nagayasu Harada

Michael H Speanburg

Hiroaki Nakatsugawa

Mickael H Speanburg

A light absorption anisotropic layer which has high contrast and can suppress hue change of an image reflected by surroundings relative to an original image when used in a viewing angle control system, an optical film using the light absorption anisotropic layer, a viewing angle control system, and an image display device. The light absorption anisotropic layer is formed of a liquid crystal composition containing a liquid crystalline compound, a dichroic substance, and an alignment agent. The liquid crystalline compound is in a liquid crystal state of a smectic phase, a content of the dichroic substance is 5.0% by mass or more with respect to a total solid content mass of the liquid crystal composition, and an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the light absorption anisotropic layer is between 0° and 45°.

Light absorption anisotropic layer, optical film, viewing angle control system, and image display device

A liquid crystal composition capable of forming a light absorption anisotropic layer with an excellent surface state and an excellent alignment degree, a light absorption anisotropic layer, a laminate, and an image display device. The liquid crystal composition is a liquid crystal composition including a liquid crystal compound A represented by Formula (I) Q1-V1-SP1-X1-(Ma-La)na-X2-SP2-V2-Q2, a compound B represented by Formula (II) Q1-V1-SP1-X1-(Mb-Lb)nb-SP3-(Mc-Lc)nc-X2-SP2-V2-Q2, and a dichroic substance.

Liquid crystal composition, light absorption anisotropic layer, laminate, and image display device

Provided is an optical laminate with excellent durability and an image display device formed of the optical laminate. The optical laminate includes a pressure sensitive adhesive layer, a specific laminate including a resin layer and a light absorption anisotropic layer which are adjacent to each other, and a pressure sensitive adhesive layerin order, in which the light absorption anisotropic layer contains a dichroic substance, the pressure sensitive adhesive layeris adjacent to the resin layer of the specific laminate, and a storage elastic modulus Ep of the pressure sensitive adhesive layerand a storage elastic modulus Ea and a moist heat strain δa of the resin layer satisfy Expression (1-1) ¼ (3×Ep/Ea)>δa.

Optical laminate and image display device

Provided is a polarizer-forming composition from which a polarizer with a high degree of alignment and excellent heat resistance can be formed, a polarizer, and an image display device. The polarizer-forming composition includes a liquid crystal compound, and a dichroic material, in which the liquid crystal compound is a polymer liquid crystal compound, and a content of a component having a number average molecular weight of 1000 or less which is contained in the polymer liquid crystal compound is in a range of 0.10% to 5.0% by mass.

Polarizer and image display device

The present invention provides a viewing angle control system and a display device that are capable of providing a bright and easy-to-see image in a desired direction, shielding light from the image in a direction other than the desired direction, and limiting reflected glare on window glass, and an optical film therefor. The optical film of the present invention includes a light absorption anisotropic layer formed of a liquid crystal composition containing a thermotropic liquid crystal compound, a dichroic substance, and an interface improver, in which a content of the dichroic substance is 10.0% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the optical film is 5° or greater and less than 45°.

Optical film, viewing angle control system, and image display device

A liquid crystal composition with a light absorption anisotropic film that has a high alignment degree, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the liquid crystal compound is a copolymer having a repeating unit (1) represented by Formula (1) and a repeating unit (2) represented by Formula (2), where P1 and P2 represent the main chain of the repeating unit, L1 represents a single bond or a divalent linking group, L2 represents a single bond, a divalent alicyclic group or an aromatic group, which may have a substituent, SP1 represents a spacer group, SP2 represents an alkylene group having 10 or more atoms in the main chain, M1 represents a mesogenic group, and T1 and T2 represent a terminal group.

Liquid crystal composition, light absorption anisotropic film, laminate, and image display device

Provided is a light absorption anisotropic film capable of preparing an image display device having excellent display performance and excellent durability, and a laminate and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film is used for an image display device, which is formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, in which in a signal derived from the dichroic substance detected by time-of-flight secondary ion mass spectrometry, a relationship between a maximum intensity Imax of the light absorption anisotropic film in a thickness direction and an intensity Isur1 in a surface of the light absorption anisotropic film on a viewing side of the image display device satisfies Expression (I-1) 2.0≤Imax/Isur1.

Light absorption anisotropic film, laminate, and image display device

An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and light fastness. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound is a polymer compound having a smectic liquid crystallinity.

Polarizer, method of producing polarizer, laminate, and image display device

Provided is a polarizer having a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a polymer liquid crystal compound and a dichroic material, in which the polymer liquid crystal compound is a thermotropic liquid crystal and a crystalline polymer, and the polymer liquid crystal compound and the dichroic material are horizontally aligned.

A liquid crystal composition contains a side chain type polymer liquid crystalline compound which can form a light absorption anisotropic film having a high alignment degree and has excellent solubility in a general-purpose solvent, a light absorption anisotropic film obtained using the composition, a laminate, and an image display device. The composition includes: a side chain type polymer liquid crystalline compound; and a dichroic substance, in which the compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the compound, and a content of the dichroic substance is greater than 2% by mass with respect to a total solid content of the composition.

Provided is a polymerizable liquid crystal composition used for formation of an optically anisotropic film having excellent durability, an optically anisotropic film, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal composition contains a polymerizable liquid crystal compound represented by Formula (1) and an acidic compound, in which a pKa of the acidic compound is more than &#x2212;10 and 5 or less, and a content of the acidic compound is 20 parts by mass or less with respect to 100 parts by mass of the polymerizable liquid crystal compound.

Polymerizable liquid crystal composition, optically anisotropic film, optical film, polarizing plate, and image display device

The present invention provides a liquid crystal composition with which a light absorption anisotropic film excellent in plane shape uniformity with a high alignment degree can be formed, a method of producing same, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the composition is a copolymer containing 90% by mass or more of a repeating unit (1) of Formula (1) and 10% by mass or less of a repeating unit (2) of Formula (2). In Formulae (1) and (2), P1 to P3 represent main chains, L1 to L3 represent a single bond or divalent linking group, P2 to SP3 represent a single bond or spacer group (SP1), M1 to M3 represent mesogenic groups, T1 represents a terminal group, and n and m are integers of 0 or 1.

Liquid crystal composition, method for producing high-molecular weight liquid crystal compound, light absorption anisotropic film, laminate, and image display device

An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and heat resistance. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound has a smectic liquid crystallinity, and a phase transition temperature of the polarizer-forming composition from a smectic phase to an isotropic phase or a nematic phase is 120&#xb0; C. or higher.

A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating unitsand, the repeating unithas a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant &#x3c3;p of greater than 0 at a terminal of the mesogenic group, and the repeating unithas a mesogenic group and a group having a Hammett's substituent constant &#x3c3;p of 0 or less at a terminal of the mesogenic group.

Liquid crystalline composition, side chain type polymer liquid crystalline compound, light absorption anisotropic film, laminate, and image display device

A polymer liquid crystal compound with which a light absorption anisotropic film having a high alignment degree can be formed, a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. The liquid crystalline composition includes a polymer liquid crystal compound which contains a repeating unit represented by Formula (1) and a dichroic substance. In Formula (1), a difference between a log P value of P1, L1, and SP1 and a log P value of M1 is 4 or greater. In Formula (1), P1 represents a main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a spacer group, M1 represents a mesogenic group, and T1 represents a terminal group. 

Liquid crystalline composition, polymer liquid crystal compound, light absorption anisotropic film, laminate, and image display device

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Kanagawa, Japan

Hiroshi Matsuyama