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Display device having an expanded display range in a limited analog display area
   
Document Number
US Patent 5995068
Issued Date
November 30, 1999
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Abstract
A display device to indicate positive and negative display values by increasing or decreasing a number of lit display elements to provide a display device that allows an expansion of the display range in the limited analog display area of a display section. The display device includes a first display element group that is lit to indicate display values; a second display element group located near the first display element group that is lit to indicate an origin corresponding to the display value; and a control device to control, lighting of a display value by the first display element according to a position of the origin.
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Number of Claims:
19
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Published
November 30, 1999
Application Number
08/858,346
Filed
May 19, 1997
US Classification
345/30   345/31
Int'l Classification
G03B   17/20   (20060101)   G03B   7/091   (20060101)  
Assistant Examiner
Parent Case
CROSS REFERENCE TO RELATED APPLICATIONS This application is based upon and claims priority from Japanese Patent Application No. 8-124541 filed May 20, 1996, the contents of which are incorporated herein by reference.
Priority Data
May 20, 1996 [JP] 8-124541
USPTO Field of Search
345/30   345/31   345/33   345/35   345/55   340/810.69   340/815.78   348/333   348/334   377/18  
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