US Patent 7697840 Display screen device

Patent 7697840 was granted and assigned to Hoya on April, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Hoya

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

76978400

Patent Inventor Names

Yuichi Kurosawa0

Date of Patent

April 13, 2010

Patent Application Number

114593900

Date Filed

July 24, 2006

Patent Primary Examiner

‌

Richard Hjerpe

Patent abstract

A display screen device includes a display panel on which a first image is displayed, and an electroluminescent display which displays a second image and is positioned to extend substantially entirely over one surface of the display panel so that the first image and the second image can be selectively displayed and so that the first image and the second image can be displayed in a superimposed manner.

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