Addressing process and device for a bistable liquid crystal screen
AssigneeNemoptic
InventorsJacques Angele, Romain Vercelletto, Thierry Elbhar
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Abstract
This invention concerns a process for addressing a bistable liquid crystal material screen, characterised in that it comprises at least the step consisting of applying, to the screen column electrodes, an electrical signal whose characteristics are adapted to reduce the mean quadratic voltage of the parasite pixel pulses, in order to reduce the parasitic addressing optical effects.
Claims26
Process for addressing a bistable Nematic liquid crystal dot matrix anchoring breaking screen, characterised in that it comprises at least the step consisting of applying, to the screen column electrodes, an electrical signal whose characteristics are adapted to reduce the mean quadratic voltage of the parasite pixel pulses to a value lower than the Fréederickzs voltage, in order to reduce the parasitic addressing optical effects.
Bistable Nematic liquid crystal dot matrix anchoring breaking screen addressing device, characterised in that it comprises means for applying, to the screen column electrodes, an electrical signal whose parameters are adapted to reduce the mean quadratic voltage of the parasite pixel pulses to a value lower than the Fréederickzs voltage, in order to reduce the parasitic addressing optical effects.
Dependencies are inferred from the claim text.