Global Patent Index - EP 0033334 A4

EP 0033334 A4 19830114 - DISPLAY DEVICE WITH DYNAMIC INTERNAL POLARIZER.

Title (en)

DISPLAY DEVICE WITH DYNAMIC INTERNAL POLARIZER.

Title (de)

ANZEIGEVORRICHTUNG MIT DYNAMISCHEN INNEREN POLYRISATOR.

Title (fr)

DISPOSITIF D'AFFICHAGE AVEC POLARISEUR INTERNE DYNAMIQUE.

Publication

EP 0033334 A4 19830114 (EN)

Application

EP 80901602 A 19810224

Priority

US 6128679 A 19790727

Abstract (en)

[origin: WO8100463A1] Improved twist nematic liquid crystal display (1) incorporating dynamic, internal, pleochroic polarizer. Preferred dynamic, internal, pleochroic polarizer comprises pleochroic dye admixed with liquid crystal composition (15). Display device (1) of present invention provides improved performance, as measured by contrast ratio, and can provide advantageous color effects.

IPC 1-7

G02F 1/133

IPC 8 full level

G06F 9/00 (2006.01); C09B 1/32 (2006.01); C09B 1/62 (2006.01); C09K 19/60 (2006.01); G02F 1/1335 (2006.01); G02F 1/137 (2006.01); G02F 1/139 (2006.01)

CPC (source: EP)

C09B 1/32 (2013.01); C09B 1/62 (2013.01); C09K 19/603 (2013.01); G02F 1/133528 (2013.01); G02F 1/13725 (2013.01)

Designated contracting state (EPC)

CH DE FR GB

DOCDB simple family (publication)

WO 8100463 A1 19810219; EP 0033334 A1 19810812; EP 0033334 A4 19830114; JP S56500944 A 19810709

DOCDB simple family (application)

US 8000913 W 19800722; EP 80901602 A 19810224; JP 50191080 A 19800722