Alps Electric Co., Ltd.

National Institute of Advanced Industrial Science and Technology

Gunma University

Tomomasa Takatsuka

Kinji Asaka

Takushi Sugino

Mitsuru Kano

Isao Takahashi

Kenji Omote

Kenichi Mitsumori

Mitsuo Ohizumi

Yoshihiko Ishitaka

Yorihiko Sasaki

Masao Ohkita

Tatsuya Moriike

Shinya Komura

Tetsushi Tanada

Nobuaki Haga

Akito Miura

Soshi Shiraishi

Koichi Moue

Teppei Sugawara

An object of this invention is to create an actuator in which the amount of deformation is maintained and no displacement in the reverse direction occurs, even when a constant voltage is continuously applied for a long period of time. As a means for achieving the above object, the invention provides a conductive thin film comprising a polymer gel containing at least one organic molecule selected from the group consisting of electron-donating organic molecules and electron-withdrawing organic molecules, a nano-carbon material, an ionic liquid, and a polymer.

Actuator element using carbon electrode

A conductive thin film is composed of a polymer gel including carbon nanotubes, an ionic liquid, and a polymer. At least one selected from the group consisting of fat and oil and a water repellent is included in the polymer gel or in a surface of the polymer gel.

Actuator element including fat and oil or water repellent

An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic mesophase pitch by melt spinning.

Carbon nanofiber actuator

A polymer actuator element includes an electrolyte layer and electrode layers, in which the electrode layer includes an activated carbon nanofiber and a carbon nanohorn.

Polymer actuator element

A brighter and whiter reflector provides high reflection efficiency over a wide range of angles. An indenting tool is pressed against the surface of a matrix base material; the pressing operation is repeated while changing the position of the indenting tool on the surface of the base material for the matrix to successively form many pits, the inner surfaces of which are shaped like partial spheres, on the mold surface of the matrix base material so as to provide it as the matrix for forming the reflector. Then, a transfer mold having a mold surface which has a reversed pattern of the pits and projections of the mold surface of the matrix is made, and the mold surface of the transfer mold is transferred to the surface of the base material for the reflector to provide a reflector ( ). Pits ( ) of the reflector ( ) are formed so that the depths the pits ( ) range from 0.1 &mgr;m to 3 &mgr;m, the tilt angles of the inner surfaces of the pits ( ) are distributed in the range of &minus;18 degrees to &plus;18 degrees, and the pitches between adjoining pits ( ) range from 5 &mgr;m to 50 &mgr;m. A reflection type liquid crystal display device in accordance with the present invention is equipped with the reflector ( ).

Reflector having pits and projection on a surface thereof, manufacturing method for the same, and reflection-type liquid crystal display device employing the reflector

Reflector having pits and projections on a surface thereof, manufacturing method for the same, and reflection type liquid crystal display device employing the reflector

A reflective type liquid crystal display of this invention comprises a reflector member having corrugated surface stored therein; an overcoat layer formed on the corrugated surface of the reflector member for making the corrugated surface flat; and a color filter layer formed on the overcoat layer, and wherein a thickness of the overcoat layer is more than twice of a depth of the concave part in the corrugated surface of the reflector member.

Liquid crystal display with corrugated reflective surface

A plurality of reflectors respectively having the same rough reflecting surfaces are formed substantially simultaneously on a transparent substrate of a large area. A photosensitive resin film is formed on a surface of a transparent substrate. An embossing die having a rough working surface is pressed against a photosensitive resin part of the photosensitive resin film and the photosensitive resin part is irradiated with ultraviolet rays from below the transparent substrate to form a prehardened photosensitive resin part. Those steps are repeated to form a plurality of prehardened, embossed photosensitive resin parts on the transparent substrate, and then parts not prehardened of the photosensitive resin film are removed by etching. The prehardened, embossed photosensitive resin parts are heated for hardening, and a metal reflecting film is formed on the hardened embossed photosensitive resin parts to complete a plurality of reflectors.

Method and apparatus for fabricating reflector

Reflective type liquid crystal display

Growing community of inventors

Tokyo, Japan

Tomomasa Takatsuka