Method to reduce power consumption with electro-optic lenses

Details Method to reduce power consumption with electro-optic lenses Method to reduce power consumption with electro-optic lenses

G - Physics

02

F

G02F 1/1333 (2006.01) G02F 1/1343 (2006.01) G09G 3/36 (2006.01)

Patent

CA 2655293

Provided is an electro-optic device having reduced power consumption. More specifically, an electro-optic device is provided comprising: a liquid crystal layer between a pair of oposing transparent substrates (100,10); a patterned electrode set positioned between the liquid crystal layer and the inward-facing surface of the first transparent substrate (100); a conductive layer (30) between the liquid crystal layer and the inward-facing surface of the second transparent substrate (10); and means for applying voltage to the patterned electrode set and the conductive layer, wherein the voltage applied to the conductive layer is below the threshold voltage (the RMS voltage differece above which the optical transmission of the liquid crystal layer changes).

L'invention concerne un dispositif électro-optique présentant une consommation en énergie réduite. Plus spécifiquement, le dispositif électro-optique contient: une couche à cristaux liquides située entre une paire de substrats transparents face à face; un jeu d'électrodes gravées, positionné entre la couche à cristaux liquides et la surface orientée vers l'intérieur du premier substrat transparent; une couche conductrice entre la couche à cristaux liquides et la surface orientée vers l'intérieur du second substrat transparent, et des moyens permettant d'appliquer une tension au jeu d'électrodes gravées et à la couche conductrice, la tension appliquée à la couche conductrice étant inférieure à la tension de seuil (différence de tension quadratique moyenne (RMS) au-delà de laquelle la transmission optique de la couche à cristaux liquides est modifiée).

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