Bridgestone Corporation

Ryou Sakurai

Yoshitomo Masuda

Itsuo Tanuma

Koji Takagi

Taichi Kobayashi

Hirotaka Yamazaki

Hajime Tamura

Tasuku Saito

Hidefumi Kotsubo

Hiroyuki Anzai

Hajime Kitano

Kazuya Murata

Gaku Yakushiji

Takanori Shoji

Norihiko Kaga

Norio Nihei

Yoshinori Iwabuchi

Hidetoshi Hiraoka

Toshiaki Arai

Reiji Hattori

Shinichi Kita

Kazuyoshi Akuzawa

In an image display device which has an image display panel, in which two or more groups of particles or liquid powders having different colors and different charge characteristics are sealed between opposed two substrates, at least one of two substrates being transparent, and, in which the particles or the liquid powders, to which an electrostatic field produced by a pair of electrodes provided on one substrate or both substrates respectively is applied, are made to move so as to display an image, a chip for transmitting a drive signal to the image display panel is arranged in the substrate (first aspect of the invention), or, the two substrates are constructed by a transparent substrate and the pair of electrodes are constructed by a transparent electrode (second aspect of the invention).

Image display device

An image display device which comprises an image display panel, in which particles or liquid powders as image display media are sealed in cells formed in an isolated manner from one another by partition walls between two opposed substrates, at least one of two substrates being transparent, and, in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image, is characterized in that: (1) the partition walls are manufactured by a photolithography method, and a shape of the partition wall is a taper shape such that a width of an end portion at a side of a rear substrate is larger than that at a side of a front substrate; (3-1) a plurality of cells are arranged in such a manner that they do not correspond one for one to the positions of pixels for displaying the image; (3-2) a ratio of cell area/pixel area is formed to be smaller than 4; and (2) the image display panel is manufactured by: forming a first layer made of photosensitive color composite on one substrate; forming a second layer made of photosensitive composite, which has a light transmission higher than that of the first layer and a thickness larger than that of the first layer, on the first layer; performing an exposure through a mask with respect to the first layer and the second layer on the substrate; performing a developing and a washing with respect to the exposed first and second layers so as to form color partition walls on the substrate; and connecting the other substrate to the color partition walls.

Image display device, method of manufacturing image display panel and image display panel

In the case of filling and setting the liquid powders or the particles in a plurality of cells formed by the partition walls on the substrate, the method includes the steps of: setting a nozzle at an upper portion of a container; setting the substrate, on which the partition walls are arranged, at a lower portion of the container; scattering the liquid powders or the particles dispersed in a gas from the nozzle arranged at the upper portion in the container; and filling the liquid powders or the particles in the cells on the substrate arranged at the lower portion in the container. After this filling, the method further includes: a filling step for filling a predetermined amount of the liquid powders or the particles in spaces constituting the image display cells isolated by the partition walls; a removing step for removing unnecessary liquid powders or unnecessary particles remaining on the partition walls in the filling step; a substrate stacking step for stacking the transparent substrate and the opposed substrate via the partition walls and applying a sealing agent at a peripheral portion of the substrate so as to make an atmosphere between the transparent substrate and the opposed substrate uniform; and an electrode adhering step for connecting a circuit for displaying the image to the electrode so as to form a module.

Method of manufacturing image display panel, method of manufacturing image display device, and image display device

The present invention relates to an anisotropically electricity-conductive film obtainable by dispersing in an adhesive agent electrically conductive particles, the adhesive agent being a curable adhesive agent comprising as a major component at least one polymer selected from the group consisting of an ethylene-vinyl acetate copolymer; a copolymer of ethylene, vinyl acetate and an acrylate and/or methacrylate monomer; a copolymer of ethylene, vinyl acetate and maleic acid and/or maleic anhydride; a copolymer of ethylene, an acrylate and/or methacrylate monomer and maleic acid and/or maleic anhydride; and an ionomer resin wherein molecules of an ethylene-methacrylic acid copolymer are linked with each other through a metal ion.

Anisotropically electricity conductive film comprising thermosetting

Growing community of inventors

Kokubunji, Japan

Ryou Sakurai