Rohm Co., Ltd.

Rhom Co., Ltd.

Makoto Takamura

Koji Terumoto

Takuji Maekawa

Mitsuru Morimoto

Masashi Tanaka

A semiconductor substrate structure includes: a substrate; and an epitaxial growth layer bonded to the substrate, wherein the substrate and the epitaxial growth layer are bonded by a room-temperature bonding or a diffusion bonding.

Semiconductor substrate structure and power semiconductor device

Provided is a lighting device having high luminance in-plane uniformity without a dark part occurring at a connecting part between surface light source panels. The lighting device () is provided with a plurality of surface light source panel (), and a plurality of light diffusion passive reflectors () disposed at the light-emitting side of the surface light source panel (). In the light diffusion passive reflector (), a rectangular-shaped bottom surface is disposed on a light emitting region of the surface light source panel (), and a light-emitting surface () has substantially the same size as a planar outline of the surface light source panel (), and a side surface () is formed to incline diagonally outward towards the light-emitting surface () from the bottom surface. The light diffusion passive reflectors () which are mutually adjoining are disposed to contact with each other without a gap in between, and are disposed so that the light-emitting surface () is continuously arranged.

Lighting device having surface light source panels

Provided is an organic light emitting device having a simple structure and enabling cost reduction. An organic light emitting deviceof the present invention includes: an organic light emitting element; an electrode substrate () including a pin connection hole () with which the organic light emitting elementis fixed and electrically connected; and a lead pin () having a clamp portion () and an insertion portion (), the clamp portion () clamping a peripheral portion of the organic light emitting element, the insertion portion () being fitted into the pin connection hole () to thereby connect the organic light emitting elementto the electrode substrate ().

Organic light emitting device

An organic electroluminescence lighting device includes a planar organic electroluminescence element; a planer heat diffusion plate provided on one surface of the organic electroluminescence element; and a constant current circuit element that is placed so as to contact the heat diffusion plate and supplies a constant current to the organic electroluminescence element.

Organic electroluminescence lighting device

The invention provides an organic EL display device in which at least two electrodes and organic EL layers are alternately provided on a substrate respectively, and the electrodes thus provided have an anode and a cathode formed alternately. In the organic EL display device according to the invention, at least two organic EL layers are provided. As compared with a conventional organic EL display device having one organic EL layer, therefore, an emission luminance is increased to be a double or more.

Organic electroluminescence display device and information terminal thereof

An organic EL display panel includes a plurality of anodes () formed on a substrate (), a plurality of auxiliary electrodes () held in electrical contact with the anodes (), an anode separator () covering each auxiliary electrode () and a part of the anodes (), a plurality of organic EL strips () formed to cover the anode separator (), a plurality of cathodes () layered over the organic El strips () and extending to cross the anodes (), and a plurality of cathode separators () separating among the cathodes () and extending to cross the anodes (). Each of the auxiliary electrodes () is severed at a position where the auxiliary electrode crosses the cathode separators ().

Manufacturing method for an organic EL display panel having electrode separators

A method of manufacturing an organic electroluminescent display element includes the steps of forming a plurality of organic electroluminescent elements on top of a transparent substrate, bonding seal caps provided with electronic circuits to the transparent substrate so as to seal each of the organic electroluminescent elements, and then cutting the transparent substrate around each of the organic electroluminescent elements to form organic electroluminescent display elements.

Growing community of inventors

Kyoto, Japan

Makoto Takamura