Hitachi Cable, Inc.

Hitachi, Ltd.

Tomihisa Yukimoto

Eiichi Kunitake

Satoshi Sugiyama

Toshimitsu Sukegawa

Yosuke Komori

Masahiro Noguchi

Yukio Sasaki

A light-emitting diode array comprising a conductive layer formed on a substrate, separate light-emitting portions formed on the conductive layer, a first electrode formed on at least part of an upper surface of each light-emitting portion, and a second electrode formed on the conductive layer adjacent to the light-emitting portions; the first electrode comprising a common switching electrode matrix; the second electrode comprising a common electrode divided such that one second electrode exists in every block; and at least one of bonding pads extending to the first common electrode and the second common electrode being formed on a bonding portion formed on the conductive layer like an island, whereby the bonding pads are separate from each other.

Light-emitting diode array

A light-emitting diode array comprising a conductive layer formed on a substrate, pluralities of separate light-emitting portions formed on the conductive layer, a first groove formed in the conductive layer to divide the light-emitting portions to blocks, a first electrodes formed on at least part of an upper surface of each light-emitting portion, a second electrode formed directly on the conductive layer in each block, switching common wirings separately connecting the first electrodes and first bonding pads each connected to each common wiring, first bonding pads each connected to each common wiring, and second bonding pads each connected to each second electrode, the first bonding pads and the second bonding pads being arranged longitudinally in a row, and a ratio of the number of the first bonding pads to the number of the second bonding pads being 1:n (n&#x2267;3).

A light-emitting diode array comprising a conductive layer formed on a substrate, pluralities of separate light-emitting portions formed on the conductive layer, a first groove formed in the conductive layer to divide the light-emitting portions to blocks, first electrodes each formed on at least part of an upper surface of each light-emitting portion, one second electrode formed directly on the conductive layer in each block, common switching wirings separately connected to the first electrodes, first bonding pads each connected to each common wiring, first bonding pads each connected to each common wiring, and second bonding pads each connected to each second electrode, n light-emitting portions (n is an even number) being arranged transversely in each block, and second grooves being formed in the conductive layer between adjacent light-emitting portions such that the second grooves are arranged short and long alternately, with the nearest one to the first groove being short.

A light-emitting diode array comprising a conductive layer formed on a substrate; a plurality of separate light-emitting portions formed on the conductive layer; a first electrode formed on at least part of an upper surface of each of the light-emitting portions; and a second electrode formed on the conductive layer adjacent to the light-emitting portions, wherein the second electrode is a common electrode for operating the light-emitting portions, and wherein the conductive layer is removed in areas between adjacent light-emitting portions except for areas constituting current paths to the light-emitting portions.

A light-emitting diode array comprising a conductive layer formed on a substrate, a plurality of separate light-emitting parts formed on the conductive layer, a first electrode formed on at least part of a top surface of each light-emitting part, and a second electrode formed on the conductive layer near the light-emitting part, the second electrode being a common electrode for operating a plurality of the light-emitting parts, and regions of the conductive layer between the adjacent light-emitting parts being removed.

Growing community of inventors

Tokyo, Japan

Tomihisa Yukimoto