Variable color display device having display area and background area
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United States of America Patent
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-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Aug 18, 1998
filing date -
Jul 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light emitting diode display device includes a variable color display area, for exhibiting a selective display unit, substantially surrounded by a variable color background area. The light emitting diodes in the display area are commonly coupled to a plurality of display buses, in accordance with their display colors. Similarly, the light emitting diodes in the background area are commonly coupled to a plurality of background buses, in accordance with their background colors. A display color control is provided for selectively activating the display buses, for illuminating a desired display unit in a selective color. A background color control is further provided for activating the background buses, for illuminating the background area in a uniform color different from the color of the display area.
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