Phase change material display device
AssigneeE Ink Corporation
InventorsSERGIO GARCIA CASTILLO, PEIMAN HOSSEINI
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Abstract
The disclosure relates to displays. In one arrangement a plurality of pixels is provided in which each pixel comprises a phase change material thermally switchable between a plurality of stable states. Each pixel comprises a switching device configured to heat the phase change material, and thereby thermally switch the phase change material, in response to a control signal. The switching device comprises a single electronic component capable of being switched between different states by the control signal and configured such that heat received by the phase change material of the pixel during the thermal switching of the phase change material of the pixel consists predominantly of heat generated within the single electronic component.
Claims16
A display comprising:
- a plurality of pixels, wherein:
- each pixel comprises a phase change material element comprising a phase change material thermally switchable between a plurality of stable states having different refractive indices relative to each other;
- each pixel comprises a switching device configured to heat the phase change material of the pixel, and thereby thermally switch the phase change material of the pixel, in response to a control signal received by the switching device;
- and
- the switching device comprises a single electronic component capable of being switched between different states by the control signal and configured such that heat received by the phase change material of the pixel during the thermal switching of the phase change material of the pixel consists predominantly of heat generated within the single electronic component.
Dependencies are inferred from the claim text.