The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2004
Filed:
Sep. 23, 2002
Oki Data Corporation, Tokyo, JP;
Abstract
A light-emitting array can be driven by a matrix-type driving operation. When the packaging density of light-emitting elements is to be increased, the width of the element-separating region should be made narrower. The element-separating region extends over a considerable distance and therefore is apt to be adversely affected by particles. This tends to prevent formation of a good element-separating region, lowering manufacturing yield. An n-side electrode is arranged close to a predetermined number of LEDs. An element-separating region is formed to surround the LEDs and the n-side electrode, thereby defining a plurality of n-type semiconductor blocks. The element-separating region has a first portion that extends in a direction parallel to the line of the LEDs aligned and a second portion that extend between adjacent blocks. The first portion is wider than the second portion.