US 7,009,179 B2 · Method and apparatus for displaying image by producing polarization inversion in ferroelectric member and producing contrast in contrast production member

Abstract

In a method for displaying an image: a polarization inversion pattern is produced in a ferroelectric member in accordance with image information so as to produce a surface charge pattern corresponding to the polarization inversion pattern; and an image contrast is produced in a contrast production member by the influence of the surface charge pattern, where the contrast production member is joined to the ferroelectric member. The polarization inversion pattern may be produced by heating the ferroelectric member so as to produce a heat distribution corresponding to the image information in the ferroelectric member. Further, the ferroelectric member may be heated by applying infrared light carrying the image information to the ferroelectric member.

Claims58

Dependent claims

A method for displaying an image, comprising the steps of:

(a) producing a polarization inversion pattern in a ferroelectric member in accordance with image information so as to produce a surface charge pattern corresponding to the polarization inversion pattern;
and
(b) producing an image contrast in a contrast production member by an influence of the surface charge pattern, where the contrast production member is joined to the ferroelectric member.

Dependencies are inferred from the claim text.

Facts

Application

10/025,855Filed 26 Dec 2001

Priority

JP 2000-39270725 Dec 2000

Published

US 2002/0080290 A127 Jun 2002

Granted

7 Mar 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G02F 1/0126
For the control of the intensity, phase, polarisation or colour: opto-optical modulation, i.e. control of one light beam by another light beam,…
G02F 1/3558
Characterised by the materials used: poled materials, e.g. with periodic poling; Fabrication of domain inverted structures, e.g. for…
G02F 1/1358
Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or…: the…
G02F 1/15165
Comprising organic material: polymers

Method and apparatus for displaying image by producing polarization inversion in ferroelectric member and producing contrast in contrast production member

Life of this patent

Method and apparatus for displaying image by producing polarization inversion in ferroelectric member and producing contrast in contrast production member

Life of this patent

Abstract

Claims58