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1. (WO2001037037) NORMALLY WHITE SUPER TWISTED NEMATIC LIQUID CRYSTAL DISPLAY

Pub. No.:    WO/2001/037037    International Application No.:    PCT/EP2000/011548
Publication Date: Sat May 26 01:59:59 CEST 2001 International Filing Date: Wed Nov 15 00:59:59 CET 2000
IPC: G02F 1/13363
G02F 1/139
Applicants: DEJIMA TECH B.V.
Inventors: BOSMAN, Martin
Title: NORMALLY WHITE SUPER TWISTED NEMATIC LIQUID CRYSTAL DISPLAY
Abstract:
The invention pertains to a normally white super twisted nematic, NW-STN, display comprising a super twisted nematic, STN, display cell and a compensation layer, characterized in that the compensation layer is a twisted liquid crystalline polymer and has an optical retardation OR which is 10 to 50 % of the OR of the display cell in the off-state, and wherein the absolute value of the twist angle of the compensation layer is between 150° and 10° and is at least 90° smaller than the absolute value of the twist angle of the STN display cell. Preferably, the compensation layer of the NW-STN display is temperature matched with the STN display cell.