Zeon Corporation

Nippon Zeon Company, Ltd.

Panasonic Electric Works Co., Ltd.

Tetsuya Toyoshima

Shunsuke Yamanaka

Masanori Yoshihara

Kohei Arakawa

Hiroaki Matsuda

Kouhei Arakawa

Taku Hatano

Katsuhito Kondou

Masao Nakamura

Takeyuki Yamaki

Junji Kodemura

Kouichirou Maeda

Hiroshi Yokogawa

Atsushi Sone

Shizuo Kitahara

Akira Tsujimoto

Ryozo Fukuzaki

Kyosuke Inoue

Koukichi Noguchi

Yasumasa Yoshitomi

Yutaka Katoh

Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the to substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n&#x2212;1)&#x3bb;/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizing film at an angle of about 45&#xb0; as viewed in a stacking direction.

Display device with a capacitive touch panel

A display device with a capacitive touch panel includes a laminate between a display panel and a cover layer, the laminate having a circularly polarizing plate, a first conductive layer, and a second conductive layer. The circularly polarizing plate includes a substrate and a polarizing plate. The first conductive layer, the second conductive layer, and the substrate are positioned closer to the display panel than is the polarizing plate, and the first conductive layer is positioned closer to the cover layer than is the second conductive layer. The first and second conductive layers are arranged apart from each other in a stacking direction so as to form a capacitive touch sensor. One of the first and second conductive layers is formed on one surface of the substrate. The substrate has an optical film with a phase difference of &#x3bb;/4. The polarizing plate has a polarizing film.

Display device with capacitive touch panel

Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, in which the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a phase difference of (2n&#x2212;1)&#x3bb;/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizing film at an angle of about 45&#xb0; as viewed in a stacking direction.

Disclosed is a display device with a capacitive touch panel including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate, a first conductive layer, a second conductive layer, and a substrate, in which the substrate has an optical film with a phase difference of (2n&#x2212;1)&#x3bb;/4, where n is a positive integer, the viewing-side polarizing plate has a polarizing film, and a slow axis of the optical film intersects a transmission axis of the polarizing film at an angle of about 45&#xb0; as viewed in the stacking direction.

A protective film for polarizing plate made by laminating k layers (k being an integer of 2 to 7) of thermoplastic resin, in which a refractive index n(&#x3bb;) at a wavelength X in the range of 380 to 780 nm of the i th thermoplastic resin layer as well as a refractive index n(&#x3bb;) at a wavelength &#x3bb;in the range of 380 to 780 nm of the i+1 th thermoplastic resin layer have a relationship of In |n(&#x3bb;)&#x2212;n(&#x3bb;)|&#x2266;0.045 (i being an integer of 1 to k&#x2212;l); and a polarizing plate comprising the protective film and a polarizer. The protective film has an in-plane retardation Re at a wavelength &#x3bb;of 550 nm of 50 nm or less, and is obtained by coextruding at least one layer (A) of thermoplastic resin having of a negative photoelastic coefficient with at least one layer (B) of thermoplastic resin having a positive photoelastic coefficient.

Protective film for polarizing plate

A display device including a laminate between a display panel and a cover layer, the laminate having a viewing-side polarizing plate; a first conductive layer, a dielectric layer and a second conductive layer constituting a capacitive touch sensor; and a substrate, the first conductive layer, dielectric layer, second conductive layer, and substrate are positioned closer to the cover layer than is the viewing-side polarizing plate, the first conductive layer is formed on one surface of the substrate, the dielectric layer is formed on a surface of the first conductive layer opposite to the substrate side, the second conductive layer is formed on a surface of the dielectric layer opposite to the first conductive layer side, the substrate has an optical film with a predetermined phase difference, the viewing-side polarizing plate has a polarizing film, a slow axis of optical film intersects a transmission axis of polarizing film at predetermined angle.

The present invention provides a polarizer plate including at least a protective layer A, a polarizer, and a protective layer B in that order, the protective layer A including at least layers a and b respectively including a thermoplastic resin as a main component, the layer a having a flexural modulus higher than that of the layer b; and a liquid crystal display device including a light source, an incident-side polarizer plate, a liquid crystal cell, and an exit-side polarizer plate in that order, the incident-side polarizer plate and/or the exit-side polarizer plate being the polarizer plate of the present invention. According to the present invention, a polarizer plate exhibiting high tenacity and high surface hardness and a liquid crystal display device including the polarizer plate are provided.

Deflecting plate and liquid crystal display device

A protective film for polarizing plate comprising k layers (k is an integer of 2 or more) of thermoplastic resin layer laminated, wherein

An object of the invention is to provide a laminate which is good in adhesiveness between a substrate and a thin film laminated thereon by a dry film-forming method such as a chemical vapor growth method or a vacuum evaporation method even if the substrate is a polymer substrate made of a nonpolar polymer; and a process for producing the same. In order to attain the above-mentioned object, the invention provides a laminate comprising a polymer substrate, a primer layer comprising a cyclized rubber which is a conjugated diene polymer cyclized product or a derivative thereof, the layer being formed on the surface of the polymer substrate, and a thin film laminated on the surface of the primer layer by a dry film-forming method; and a process for producing the same.

Laminate and process for producing the same

Provided are a polarization plate which has a high mechanical strength, which does not impair a visibility even under a high temperature and high humidity, which is excellent in flexibility and abrasion resistance, and which reduces a visible disturbance such as color unevenness due to a size change, as well as a liquid crystal display device using the polarization plate. A film composed of a plurality of layers composed mainly of thermoplastic resins is used as a first protection film used for a visible side of the polarization plate, and at least one surface layer of this first protection film is composed mainly of an acrylic resin. Furthermore, a second protection film having a specific property is disposed at a side of a liquid crystal cell.

Polarization plate, liquid crystal display device and protective film

A liquid crystal display device of an in-plane switching mode comprises a pair of polarizing plates which are constituted with a polarizing plate at the output side comprising a polarizer at the output side and a polarizing plate at the incident side comprising a polarizer at the incident side having a transmission axis approximately perpendicular to a transmission axis of the polarizer at the output side and two or more sheets of optically anisotropic members and liquid crystal cells disposed between the pair of polarizing plates. The device exhibits excellent scratch resistance and excellent quality of black depth and uniform and high contrast in viewing at any angles.

Growing community of inventors

Tokyo, Japan

Tetsuya Toyoshima