Transflective liquid crystal display

Details Transflective liquid crystal display Transflective liquid crystal display

1977-02-14

1978-06-06

Bauer, Edward S.

350347, 350349, 350157, G02F 113

Patent

active

040933563

ABSTRACT:
A transflective liquid crystal display capable of presenting viewable indicia to an observer stationed to the front thereof, responsive to either reflection of incident ambient light entering into display from the front thereof or transmission of light from a source behind the display, utilizes a reflective display of the type having a twisted nematic liquid crystal host-guest dichroic dye cell backed by a quarter-wave plate and a partially-reflective, partially-transmissive transflector member, in conjunction with a linear polarizer and a second quarter-wave plate arranged between the back-lighting source and the partially-transmissive member.

REFERENCES:
patent: 3748018 (1973-07-01), Borden, Jr.
patent: 3900248 (1975-08-01), Nagasaki

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