Dustin E Dunn

US Patent:

57105456, Jan 20, 1998

Filed:

Oct 10, 1995

Appl. No.:

8/541998

Inventors:

Dustin E. Dunn - Coral Springs FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 138
H03J 102
H03J 104

US Classification:

34082536

Abstract:

A display (100) provides reversible contrasting indicia (112, 114) in order to accommodate an increased number of easily distinguishable indicia on the display. The display provides a first contrast mode (200) in which one set of indicia (112) become visually more prominent than another set (114) and a second contrast mode (300) in which the contrast of the first contrast mode is reversed. Selecting between the first and second contrast modes (200, 300) is controlled by backlighting of the display (100).