Nitto-denko Corporation

Nitto Denko Cororation

Junichi Nagase

Kentarou Takeda

Toshiyuki Iida

Masaki Hayashi

Nao Murakami

Yutaka Ohmori

Tatsuki Nagatsuka

Hisae Shimizu

Seiji Umemoto

Hiroyuki Yoshimi

Takahiro Fukuoka

Kazuhito Hosokawa

Tomoyuki Hirayama

Shusaku Shibata

Shigenori Morita

Miyuki Kurogi

Takahiro Nakai

Yoshiharu Hatakeyama

Jin Yoshikawa

Kazunori Futamura

Bin Fang

Kozo Nakamura

Takeharu Kitagawa

Hideki Ishida

Daisuke Hattori

Hiroyuki Nishii

Daisuke Hayashi

Tomonari Naito

Takahisa Konishi

Kentarou Yoshida

Ryohei Kakiuchi

Saori Yamamoto

Hideyuki Emori

Masahiko Watanabe

Mika Okada

Kanto Kobayashi

Saori Fukuzaki

The present invention provides a flexible light-emitting device which is a flexible device with which the light leakage is less liable to occur even if it is deformed. In order to achieve the above object, the flexible light-emitting device of the present invention includes a light-emitting layer, a low refractive index layer, and a high refractive index layer, wherein the light-emitting layer, the low refractive index layer, and the high refractive index layer are stacked in this order, the low refractive index layer has a refractive index lower than that of the light-emitting layer and has a haze of less than 5%, and the high refractive index layer has a refractive index higher than that of the low refractive index layer.

Flexible light-emitting device, lighting apparatus, and image display

Organic-inorganic composite particles that can be dispersed in a solvent and/or a resin as primary particles having an organic group on the surface of inorganic particles, the organic-inorganic composite particles having negative birefringence.

Particles, particle dispersion, particle-dispersed resin composition, producing method therefor, resin molded article, producing method therefor, catalyst particles, catalyst solution, catalyst composition, catalyst molded article, titanium complex, titanium oxide particles and producing method therefor

Ion conductive organic-inorganic composite particles are particles that have an organic group on the surface of inorganic particles and have at least a configuration that does not allow the inorganic particles to contact with each other by steric hindrance of the organic group, the organic group containing an ion conductive group.

Ion conductive organic-inorganic composite particles, particle-containing resin composition and ion conductive molded article

In order to provide an organic electroluminescent light-emitting device with less uneven brightness, which can be manufactured at low cost, a plurality of ribbon-like organic electroluminescent elements are connected to wires, which are connected to electrode terminals for energization at specific locations in a terminal region and mounted on a base material which has a substantially plate-like shape.

Organic electro-luminescence light-emitting device and production method of the same

A laminated optical film according to an embodiment of the present invention includes a polarizing plate and a retardation layer formed of a water dispersible pressure-sensitive adhesive composition containing an inorganic laminar compound.

Laminated optical film

A surface light emitter according to an embodiment of the present invention, includes: a base material; a plurality of ribbon-shaped organic electroluminescent elements provided side by side on the base material; and a lenticular sheet that is attached to the base material and the ribbon-shaped organic electroluminescent elements through an adhesion layer, and that has a plurality of convex cylindrical lenses provided side by side. A direction in which the convex cylindrical lenses extend and a direction in which the ribbon-shaped organic electroluminescent elements extend are substantially parallel to each other.

Surface light-emitting object

A polarizing plate including a polarizer, a UV-shielding layer containing an inorganic fine particle with a bandgap of 3.0 eV or more and a binder resin, and a protective film.

Polarizing plate having polarizer and ultraviolet shielding layer containing inorganic fine particles and image display apparatus comprising the same

A polarizing plate including a polarizer, a UV-shielding layer containing inorganic fine particles each having a band gap of 3.0 eV or more and a binder resin and a protective film. The UV-shielding layer contains the inorganic fine particles at a content of 40 to 80 vol %, and has a thickness of 400 nm or less.

Polarizing plate having ultraviolet shielding layer containing inorganic fine particles and image display apparatus comprising the same

[Object] The present invention provides a liquid crystal panel with which a display with extremely small change in color depending on a viewing direction can be realized, and a liquid crystal display including the same. [Solution to Problem] The liquid crystal panel includes: a first polarizer; a second polarizer; a first optical compensation layer; a second optical compensation layer; and a liquid crystal cell. The first polarizeris arranged on one surface of the liquid crystal cell. The second polarizeris arranged on the other surface of the liquid crystal cell. The first optical compensation layeris arranged between the liquid crystal celland the first polarizer. The second optical compensation layeris arranged between the liquid crystal celland the second polarizer. The first optical compensation layersatisfies the following mathematical formulae (1) and (2). The second optical compensation layer satisfies the following mathematical formulae (3) and (4).&#x2003;&#x2003;(1)([450]/[550])&#x3c;1.00&#x2003;&#x2003;(2)&#x2003;&#x2003;(3)([450]/[550])&#x2267;1.10&#x2003;&#x2003;(4)

Liquid crystal panel and liquid crystal display

The invention relates to an optical film containing polymers having different repeating units, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The optical film of the invention advantageously has not only high solubility in solvents but also a high level of transparency since the polymers used in the optical film are compatible with each other. Further, wavelength dispersion of the birefringence of the optical film can be controlled by merely changing a ratio of polymers.

Optical film and method for production thereof

The object of the present invention is to provide a producing method for a lengthwise optical laminate exhibiting high contrast ratio and adaptable to a large-sized display. The present invention provides a producing method for a lengthwise optical laminate, which comprises a step 1 of coating and drying a coating solution comprising a birefringent material and a solvent on a surface of a lengthwise base material to form a birefringent film such that a birefringence index (Anxz[590]) in the thickness direction at a wavelength of 590 nm is 0.02 or more, and produce a lengthwise sheet (A) comprising the base material and the birefringent film; a step 2 of drawing a lengthwise film of a hydrophilic polymer containing a dichroic material so that a draw ratio is from 3 times to 5 times based on the original length and a neck-in ratio is 55% or less to produce a lengthwise polarizer (B); and a step 3 of laminating the lengthwise sheet (A) obtained in the step 1 on one plane of the lengthwise polarizer (B) obtained in the step 2 to produce the lengthwise optical laminate.

Producing method for lengthwise optical laminate and liquid crystal panel

The liquid crystal panelof the present invention comprises a liquid crystal cell, a first polarizerdisposed on one surface side of the liquid crystal cell, a second polarizerdisposed on the other surface side of the liquid crystal cell, and first optical compensation layerand second optical compensation layerdisposed between the first polarizerand second polarizer, and the liquid crystal cellsatisfies a relationship of 0.8 Re [450]/Re [550] 1, the first optical compensation layersatisfies relationships of the Nz coefficient is from 0.8 to 1.4 and 0.8 Re[450]/Re[550] 1, and the second optical compensation layersatisfies relationships of nx =ny&#x3e;nz and 0.98 Re[450]/Re[550] 1.04. The liquid crystal panel of the present invention is hardly generated color shift when the panel is viewed from all azimuth angle directions and polar angle directions, so that the liquid crystal panel is excellent in color display characteristics.

A liquid crystal panel of the present invention comprise a liquid crystal cell, a first polarizer arranged on one of both sides of the liquid crystal cell, and a second polarizer arranged on the other side of the liquid crystal cell, wherein at least one of the first and the second polarizers is dyed with a dichroic material, and the dichroic ratio thereof is from 40 to 100. At least one of the polarizers preferably has a polarization degree of 99% or more and a single transmittance of 35% to 45%. Further, at least one of the polarizers preferably exhibits the following birefringence: &#x394;nis from 0.015 to 0.030. The liquid crystal panel of the present invention has the above polarizers, therefore the liquid crystal panel attains high contrast ratio in oblique directions and excellent display characteristics.

A liquid crystal panel includes a liquid crystal cell having a liquid crystal layer containing liquid crystal molecules that are vertically aligned in an absence of a voltage; a first optical compensation layer having a relationship of Nz =1 to 2.5 and a relationship of Re(380) &#x3c;Re(550) &#x3c;Re(780); a second optical compensation layer having a relationship of nx =ny &#x3e;nz and a relationship of Re(380) &#x3e;Re(550) &#x3e;Re(780); a first polarizer; a third optical compensation layer having a relationship of Nz =1 to 2.5 and a relationship of Re(380) &#x3c;Re(550) &#x3c;Re(780); a fourth optical compensation layer having a relationship of nx =ny &#x3e;nz and a relationship of Re(380) &#x3e;Re(550) &#x3e;Re(780); and a second polarizer wherein: the first optical compensation layer, the second optical compensation layer, and the first polarizer are placed on one side of the liquid crystal cell; and the third optical compensation layer, the fourth optical compensation layer, and the second polarizer are placed on the other side of the liquid crystal cell.

Liquid crystal panel and liquid crystal display apparatus

There are provided a liquid crystal panel and a liquid crystal display apparatus each having an excellent screen contrast, a small color shift, and small display unevenness. The liquid crystal panel includes a liquid crystal cell, a first polarizer, a second polarizer, a protective layer, a first optical compensation layer and a second optical compensation layer. The protective layer has relationships of 0 nm&#x2266;&#x394;nd (550)&#x2266;10 nm and 0 nm&#x2266;Rth(550)&#x2266;20 nm. The first optical compensation layer has an absolute value of a photoelastic coefficient of 40&#xd7;10(m/N) or less, and has relationships of &#x394;nd(380)&#x3c;&#x394;nd(550)&#x3c;&#x394;nd(780), nx&#x3e;ny&#x2267;nz and 90 nm&#x2266;&#x394;nd(550)&#x2266;200 nm. The second optical compensation layer has relationships of Rth(380)&#x3e;Rth(550)&#x3e;Rth(780) and nx=ny&#x3e;nz.

Growing community of inventors

Ibaraki, Japan

Junichi Nagase