Multipole liquid crystal display with alignment layer

Details Multipole liquid crystal display with alignment layer Multipole liquid crystal display with alignment layer

1997-12-22

1999-05-18

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349139, 349141, G02F1/1343

Patent

active

059055570

ABSTRACT:
An improved efficiency liquid crystal display device (10) includes at least two pairs of electrode disposed above and below, and on two sides of each display pixel (12). Operatively associated with at least one electrode of each pair is an alignment layer. Each pair of electrodes is capable of applying an electrical field to a layer of liquid crystal material disposed therebetween. The applied electrical fields cause the liquid crystal materials to switch from a first to a second optical state corresponding to an opaque and transparent state. The result is a display device having higher optical efficiencies, and faster display response times. Multiple intermediate optical states are possible by applying varying amounts of electrical charge to the two pairs of electrodes at the same time. The alignment layer lets the liquid crystal material remain in the state set until a second field is applied.

REFERENCES:
patent: 5754266 (1998-05-01), Ohta et al.
patent: 5760857 (1998-06-01), Yanagawa et al.
patent: 5786876 (1998-07-01), Ota et al.

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