Patent ID: 7023420
Filing Date: 2006-04-04
Classification: G02F,G09G

Abstract:
1. An electronic display comprising an electro-optic material having a plurality of pixels, and separate first, second and third sets of addressing means for addressing said pixels, each of said pixels being associated with one addressing means in each of said three sets, such that any specific pixel of the display can be addressed by application of signals within predetermined ranges to each of the three addressing means associated with said specific pixel, wherein at least one of the sets of addressing means comprises a photoconductor, the display further comprising (a) a plurality of light sources associated with the photoconductor and selectively operable to switch the photoconductor between a conductive and a non-conductive state, the light sources being arranged as a series of elongate rows, each elongate row defining at least one row of pixels of the display: and (b) light valves disposed between the light sources and the photoconductor and arranged to control transmission of light from the light sources to the photoconductor.