Owner PureDepth Limited

Inventors Seymour, Bruce, David

Agent Pizzeys

Pub. Number AU-B-2002338562

PCT Number PCT/NZ02/00079

PCT Pub. Number WO2002/089102

Priority 511444 01.05.01 NZ

Filing date 1 May 2002

Wipo publication date 11 November 2002

Acceptance publication date 26 March 2009

G02F 1/13 (2006.01) Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating - based on liquid crystals, e.g. single liquid crystal display cells

G09F 19/12 (2006.01) Advertising or display means not otherwise provided for - using special optical effects

G09F 19/14 (2006.01) Advertising or display means not otherwise provided for

G09G 3/20 (2006.01) Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes - for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

G09G 3/36 (2006.01) Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes - using liquid crystals