Process for increasing display brightness of liquid crystal displays by bleaching polarizers using screen-printing techniques
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United States of America Patent
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Jan 1, 1980
Grant Date -
N/A
app pub date -
Oct 5, 1977
filing date -
Oct 5, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process and composition for selectively bleaching a polarizer, and particularly a polarizer used in a liquid crystal display, to achieve sharply-defined polarizing areas in accurate registration with the transparent conductive areas of the display. This is achieved by silk-screening a gel, containing a bleaching agent, onto selected areas of a polarizer in place of the display, the gel having a viscosity to permit silk-screening.
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