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:
Oct. 24, 2000
Filed:
Nov. 25, 1998
Shinichi Fukuzawa, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An EL device is provided by a method by forming a plurality of stripes of a first transparent electrode on a transparent substrate extending in one direction of the substrate, forming a plurality of stripes of an insulating partition wall on said first electrode in a direction perpendicular to said first electrode stripes, forming an organic layer and a second electrode in sequence on the partition wall stripes, adhering a sealing glass cap so as to cover all of the above layers and evacuating the inside of said sealing glass cap, and irradiating a laser light from the outside of the sealing glass cap toward the partition wall stripes so as to separate the second electrode to form a divided groove on the partition wall. Since the separation of the second electrode by fusion is carried out in a vacuum, so that the chips of metal evaporated by the photo-ablation stick on the inside wall of the glass cap without contaminating the inside of the divided portion, which results in the prevention of shorting of the second electrode and increases the manufacturing yields in the manufacturing process.