Electro-optic device

Details Electro-optic device Electro-optic device

1994-05-11

1996-01-09

Brier, Jeffery

Computer graphics processing and selective visual display system

Display driving control circuitry

Light detection means

345104, G09G 320, G09G 336

Patent

active

054832632

ABSTRACT:
A first substrate (2) carries an electro-optic display (3) having a first array (4) of display elements (5) and conductors (12,13) for addressing individual display elements (5) to enable the display to display an image. A second substrate (6) carries a second array (7) of elements (8) addressable by conductors (9,10). Photosensitive elements (11) are associated with the conductors (9,10) for supplying, when illuminated, signals along the conductors (9,10) for accessing the elements (8) of the second array (7), the second substrate (6) being provided over the first substrate (2) so that the photosensitive elements (11) are associated with selected ones (5') of the display elements (5) for enabling the selected display elements (5a) to illuminate the photosensitive elements (11) allowing access of the elements (8) of the second array (7) to be controlled by the display (3) so that it is not necessary to provide separate drive circuitry for the second array.

REFERENCES:
patent: 4345248 (1982-08-01), Togashi et al.
patent: 4382187 (1983-05-01), Fraleux et al.
patent: 4945242 (1990-07-01), Berger et al.
patent: 4952031 (1990-08-01), Tsunoda et al.
patent: 5003167 (1991-03-01), Arques

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