Layered superlattice ferroelectric liquid crystal display

Details Layered superlattice ferroelectric liquid crystal display Layered superlattice ferroelectric liquid crystal display

1998-06-09

1999-08-24

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within smectic phase

C09K 1902

Patent

active

059431113

ABSTRACT:
A thin film of ferroelectric layered superlattice material in a flat panel display device is energized to selectively influence the display image. In one embodiment, a voltage pulse causes the layered superlattice material to emit electrons that impinge upon a phosphor, causing the phosphor to emit light. In another embodiment, an electric potential creates a remanent polarization in the layered superlattice material, which exerts an electric field in liquid crystal layer, thereby influencing the transmissivity of light through the liquid crystal. The layered superlattice material is a metal oxide formed using a special liquid precursor containing an alkoxycarboxylate. The thin film of layered superlattice material is formed using a spin-on technique and low-temperature heat treating. The thin film thickness is preferably in the range 500-1400 .ANG. so that polarizability and transparency of the thin film is enhanced.

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