Reflective guest-host liquid-crystal display

Details Reflective guest-host liquid-crystal display Reflective guest-host liquid-crystal display

1997-07-14

1998-11-03

Thomas, Alexander

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With charge transferring layer of specified composition

349122, G02F 11335

Patent

active

058305424

ABSTRACT:
A reflective guest-host liquid-crystal display of the present invention includes a pair of substrates joined together at a predetermined distance therebetween. One of the substrates is positioned at an incident side and the other is positioned at a reflection side. A guest-host liquid-crystal layer, a reflective layer, and a .lambda./4 phase shifter are provided within a space formed between the pair of substrates. The guest-host liquid-crystal layer positioned adjacent to the incident-side substrate contains a dichroic dye. The .lambda./4 phase shifter is provided between the guest-host liquid-crystal layer and the reflective layer and is located adjacent to the reflection-side substrate. A counter electrode and pixel electrodes are formed on the incident-side substrate and the reflection-side substrate, respectively, so as to apply a voltage to the guest-host liquid-crystal layer. The .lambda./4 phase shifter is composed of a uniaxially aligned side-chain type liquid-crystal polymer having at least a biphenyl benzoate group introduced into a side chain, and thereby exhibits improved solvent resistance.

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