Two-dimensional monochrome bit face display
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United States of America Patent
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Nov 1, 2005
Grant Date -
Apr 17, 2003
app pub date -
Apr 19, 2002
filing date -
Apr 19, 2001
priority date (Note) -
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Abstract
A two-dimensional monochrome bit face display has a luminance resolution that is equal to or higher than that of a CRT monitor. In one implementation, a two-dimensional monochrome bit face display has a bit face in which each pixel is constituted by m sub-pixels and neutral density filters mounted on the m sub-pixels of a respective pixel have light transmittances proportional to values 1/2.sup.n where n is an integer. In another implementation, mask filters are mounted on the m sub-pixels and have windows with light transmittances that are proportional to values 1/2.sup.n. Alternatively, areas of the m sub-pixels are set in the same proportion. The luminance of each sub-pixel is electronically controlled to improve the luminance resolution of the bit face display.
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