Fujifilm Corporation

Sony Corporation

Sony Mobile Communications Inc.

Aiko Yoshida

Nobutaka Fukagawa

Naoya Shimoju

Mayumi Nojiri

Yasukazu Kuwayama

Masaki Noro

Yu Naito

Masato Nagura

Takashi Sato

Naoki Sano

Aiko Yamamoto

Keita Takahashi

Hiroshi Inada

Teruki Niori

Akihiro Bungo

Kenichiro Kodama

Masato Tanaka

Hideyuki Nishikawa

Daisuke Hayashi

Hiroshi Takeuchi

Shinya Watanabe

Hideaki Shoji

Yutaka Nozoe

Yoshinori Kanazawa

Naozumi Shiraiwa

Takahiro Ohno

Ryo Satake

Satoshi Shimamura

Takayasu Yasuda

Hiroyuki Hagio

Hiromoto Haruta

Hiroshi Sato

Kiyoshi Takeuchi

Naoyuki Nishikawa

Hiroshi Matsuyama

Naoyoshi Yamada

Shigeki Uehira

Osamu Uchida

Ayako Muramatsu

Toru Watanabe

Kunihiro Atsumi

Taiji Katsumata

Yuuta Fujino

Yoshitaka Maeda

Yukie Watanabe

Shuuji Kanayama

Shino Ohira

Yingjie Xu

Yusuke Ino

Hiroaki Nakatsugawa

Junichi Ohno

An object of the present invention is to provide a polymerizable liquid crystal composition used for formation of an optically anisotropic film having excellent moisture-heat resistance and an excellent surface condition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal composition of an embodiment of the present invention is a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound and a compound represented by Formula (1): L-SP-(E-A)-E-G-C(&#x2550;O)&#x2014;O&#x2014;C(&#x2550;O)-G-E-(A-E)-SP-L, in which a content of the compound represented by Formula (1) is 0.01 to 5 parts by mass 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

An image display device which suppresses destruction of an image display panel due to static electricity carried by a phase difference film, and has excellent adhesiveness between the phase difference film and the image display panel even in a moisture-heat environment, and a circularly polarizing plate with a photosensitive adhesive. The image display device includes a circularly polarizing plate having a linear polarizer and a phase difference film, and an image display panel in this order from a viewing side, in which the phase difference film and the image display panel are bonded by a pressure-sensitive adhesive, the phase difference film has an optically anisotropic layer obtained by polymerizing a polymerizable liquid crystal composition containing at least one kind of polymerizable liquid crystal compound having a predetermined structure, and the pressure-sensitive adhesive contains a polymer having an acid value of 1 to 30 mgKOH/g and an antistatic agent.

Image display device and circularly polarizing plate with photosensitive adhesive

A polymerizable liquid crystal composition having excellent solubility, used for formation of an optically anisotropic film having excellent durability. The polymerizable liquid crystal composition contains a polymerizable liquid crystal compound P1 represented by Formula (1): A-Ar-A, a polymerizable liquid crystal compound P2 represented by Formula (2): A-Ar-B, and a polymerizable liquid crystal compound P3 represented by Formula (3): B-Ar-B. In Formulae (1) and (2), A's represent predetermined side chains, all of which exhibit the same C log P value, and in Formulae (2) and (3), B's represent predetermined side chains, all of which exhibit the same C log P value. It should be noted that A and B represent side chains having C log P values different from each other, in which the C log P value of A is larger than the C log P value of B and the C log P value of at least one of A or B is 3.3 or more.

Polymerizable liquid crystal composition, method for producing polymerizable liquid crystal composition, optically anisotropic film, optical film, polarizing plate, and image display device

Provided are an optically anisotropic film which has excellent moisture-heat resistance and can have a reduction in the thickness, an optical film, a polarizing plate, and an image display device. The optically anisotropic film is obtained by polymerizing a polymerizable liquid crystal composition, in which the polymerizable liquid crystal composition contains a polymerizable liquid crystal compound represented by Formula (1): L-SP-(E-A)-E-G-D-Ar-D-G-E-(A-E)-SP-Land a polymerizable liquid crystal compound represented by Formula (2): L-SP-(E-A)-E-G-D-Ar-D-G-E-(A-E)-SP-L, and the optically anisotropic film satisfies Formula (3): Re(450)/Re(550)&#x3c;1 or Formula (4): Rth(450)/Rth(550)&#x3c;1, and has a degree of alignment as measured by Raman spectroscopy of 0.4 or more.

Optically anisotropic film, optical film, polarizing plate, and image display device

An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.

Optical film, polarizing plate, image display device, polymerizable compound, and method for manufacturing 1,4-cyclohexanedicarboxylic acid monoaryl ester

A polarizing plate, which includes at least a polarizer layer including an iodine-dyed polyvinyl alcohol film, and the polarizing plate including a compound with a bond dissociation energy E1 of less than or equal to 90.0 kcal/mol, a peroxide radical forming energy E2 of less than or equal to 0.0 kcal/mol, and a polyiodide ion Iforming ability in an iodide compound-containing solution of less than or equal to 1.0.

Polarizing plate, liquid crystal display device having the same, and method of manufacturing polarizing plate

A polarizing plate protective film which prevents deterioration of polarization performance in a high temperature, high humidity environment, and a polarizing plate and display device using the film including a compound represented by the following General Formula (I).(X-LZ&#x2003;&#x2003;General Formula (I)X represents a formyl group, a boronic acid group, or a group represented by the following General Formula (I-B) or a group represented by the following General Formula (I-C), where L represents a single bond or divalent linking group, and n represents an integer equal to or greater than 2. When n is 2, Z represents a single bond or a divalent group, and when n&#x2265;3, Z represents an n-valent group. Rand Rrepresent an alkyl group, a cycloalkyl group, an aryl group, or an acyl group. Rand Rmay be bonded to each other to form a ring. * represents a bond to be bonded to L.

Polarizing plate protective film, polarizing plate, and display device

A cellulose ester film contains a compound having a structural unit denoted by &#x2014;NR&#x2014;(C&#x2550;O)&#x2014; in which R represents a hydrogen atom or a substituent, a surface having knoop hardness of greater than or equal to 210 N/mmis provided, and loss tangent tan &#x3b4; at 25&#xb0; C. is greater than or equal to 0.03.

Cellulose ester film, polarizing plate, and liquid crystal display device

A polarizing plate protective film containing a compound represented by formula (I); a polarizing plate; and a display: in formula (I), X represents a group of formula (I-A-1) or (I-A-2), L represents a single bond or a divalent linking group, Z represents an n-valent linking group, and n represents an integer of 2 or more; however, when n is 2, the case where L and Z each are simultaneously a single bond is excluded:in formulae (I-A-1) and (I-A-2), Rand Reach independently represent an alkyl, cycloalkyl, aryl, or acyl group; however, the case where Rand Rbond to each other to form a ring is excluded; Rto Reach independently represent a hydrogen atom, or an alkyl, cycloalkyl, aryl, acyl, alkoxy, or alkoxycarbonyl group; and an asterisk (*) represents a bonding hand to form a bonding with L.

Polarizing plate protective film, polarizing plate, and display

A composition for a polarizing plate containing a polymer having a partial structure represented by the following ring structure &#x3b1; or &#x3b2; in the molecule, a polarizing plate protective film, a cellulose acylate film, a polarizer, a polarizing plate, and a display; wherein Lrepresents a single bond, &#x2014;C(&#x2550;O)&#x2014;, &#x2014;C(&#x2550;S)&#x2014;, an alkylene group, or an arylene group; and the symbol * designates a boning hand, or a site to which a hydrogen atom, a substituent, or a linking group binds.

Composition for polarizing plate, polarizing plate protective film, cellulose acylate film, polarizer, polarizing plate, and display

A polarizing plate composition, a polarizing plate protective film, a polarizer, a polarizing plate, and a liquid crystal display device contain a compound represented by the following Formula (I). In Formula (I), R represents a specific substituent, and each of EWGand EWGrepresents an electron-withdrawing group. EWGand EWGmay form a ring by being bonded to each other. Here, there is no such case where EWGand EWGbecome the following group by being bonded to each other and form a ring by being bonded to a carbon atom substituted with R. Each of Rx and Ry represents a hydrogen atom or a substituent. * represents a position of bonding to a carbon atom substituted with R.

Polarizing plate composition, polarizing plate protective film, polarizer, polarizing plate, and liquid crystal display device

The inventions are an optical film containing cellulose acylate and a compound having a structure denoted by General Formula (A) described below, and a polarizing plate and a liquid crystal display device employing the optical film. L represents n-valent connecting group, n represents an integer of greater than or equal to 2, and A represents a heterocyclic group denoted by General Formula (I). R, R, and Rrepresent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, or a heteroaryl group. Here, any one of R, R, and Ris bonded to L.

Optical film, and polarizing plate and liquid crystal display device employing same

A cellulose acylate film, which includes a compound denoted by general formula (I) below, the equivalent U of which, calculated as a value obtained by dividing the molecular weight of the compound by the number of divalent linking groups denoted by &#x2014;O&#x2014;C(&#x2550;O)&#x2014;NH&#x2014; contained per molecule, is less than or equal to 515, wherein, in general formula (I), each of Land Lindependently denotes an optionally substituted alkylene group; each of Land Lindependently denotes a single bond, any one of or any combination of &#x2014;O&#x2014;, &#x2014;NR&#x2014;, &#x2014;S&#x2014; and &#x2014;C(&#x2550;O)&#x2014;; Rdenotes a hydrogen atom or a substituent; each of n1 and n2 independently denotes an integer of 0 to 20, with at least either n1 or n2 being an integer of greater than or equal to 1.Q-(L-L)-O&#x2014;C(&#x2550;O)&#x2014;NH-(L-L)-Q&#x2003;&#x2003;General formula (I)

Cellulose acylate film, novel compound, polarizing plate and liquid crystal display device

A polarizing plate of the present invention includes polarizing plate protective film(s) on one or both sides of a polarizer, wherein the polarizing plate protective film contains a compound represented by general formula (I) or (II) described below, the polarizer contains iodine, and the content of the iodine within the polarizer is 4.0 wt % or greater. 

Polarizing plate and display device

Embodiments described herein relate a mobile communication device and techniques to suppress deterioration of antenna characteristics. The mobile device includes metallic members that are disposed around, or in portions of a casing of the mobile device. The metallic member is grounded directly to a ground plane of the mobile device at a first predetermined position. The grounded metallic member forms a stub line that cancels a flow of electric current though the metallic member. Furthermore, the metallic member is also connected to the ground plane, at a second predetermined location, via a resonant circuit. The mobile device is capable of adjusting a phase of the antenna current flowing through the device, when the mobile device is being operated by a user, and thus suppresses deterioration of antenna characteristics in certain desired frequency bands.

Mobile communication device

Growing community of inventors

Kanagawa, Japan

Aiko Yoshida