Process for increasing display brightness of liquid crystal disp

Details Process for increasing display brightness of liquid crystal disp Process for increasing display brightness of liquid crystal disp

1977-10-05

1980-01-01

Hoffman, James R.

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

8107, 8108A, 350337, 427108, G02F 113

Patent

active

041817567

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.

REFERENCES:
patent: 3731986 (1973-05-01), Fergason
patent: 3857627 (1974-12-01), Harsch
patent: 3941901 (1976-03-01), Harsch

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