Liquid crystal display device for colored display of information with a selective polarizer
AssigneeBBC Brown, Boveri & Company, Limited
InventorsRino Doriguzzi, Terry J. Scheffer
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Abstract
A liquid crystal display device for the colored display of information with a reflector and a twisted nematic liquid crystal cell placed between a linear and a selective polarizer is disclosed. The selective polarizer is disposed in front of the twisted nematic liquid crystal cell and the linear polarizer is disposed between the twisted nematic liquid crystal cell and the reflector.
Claims14
A liquid crystal display device for the colored display of information with a reflector and a twisted nematic liquid crystal cell placed between a linear polarizer and a selective polarizer wherein the selective polarizer is disposed in front of the twisted nematic liquid crystal cell and the linear polarizer is disposed between the twisted nematic liquid crystal cell and the reflector.
A method of producing a liquid crystal display device for the colored display of information with a reflector and a twisted nematic liquid crystal cell placed between a linear polarizer and a selective polarizer wherein the selective polarizer is disposed in front of the twisted nematic liquid crystal cell and the linear polarizer is disposed between the twisted nematic liquid crystal cell and the reflector comprising:
- making a polarizing sheet of the selective polarizer by stretching a polyvinyl alcohol film in a cold water bath,
- embedding dichroic molecules in the polyvinyl alcohol film in a dye bath, and,
- drying the dichroic molecule embedded polyvinyl alcohol film.
Dependencies are inferred from the claim text.