Color display device and portable electronic appliance using the same
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United States of America Patent
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Mar 12, 2013
Grant Date -
Jun 5, 2008
app pub date -
Nov 7, 2005
filing date -
Nov 5, 2004
priority date (Note) -
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Abstract
The present invention is directed to the provision of an FSC type color display device wherein the frame frequency is set within a range of 20 Hz to 59 Hz, and a portable electronic appliance incorporating such a display device. The color display device according to the present invention includes a plurality of light sources, which emit respectively different colors, and a light source controller for sequentially and selectively emitting of predetermined light source within the plurality of light sources, and repeating the sequential and selective emitting with a predetermined cycle, wherein a frequency of the predetermined cycle is set so that, when the color display device is held stationary, the colors emitted from the plurality of light sources are not visible as separate colors, but when the color display device is in motion, the colors emitted from the plurality of light sources are visible as separate colors.
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