Methods of switching and apparatus comprising an electrically actuated variable transmission material
First Claim
1. A method of switching an electrically actuated variable transmission layer, the layer being between a first electrode and a second electrode, wherein a sufficiently high frequency alternating electric field is applied between the first and second electrodes such that a selective region of the layer in between the first and second electrodes is switched, wherein the frequency of the applied electric field is greater than 1 kHz.
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Accused Products
Abstract
A method of switching an electrically actuated variable transmission layer is disclosed. The layer is between a first electrode and a second electrode, and when a sufficiently high frequency alternating electric field is applied between the first and second electrodes, a selective region of the layer in between the first and second electrodes is switched. Apparatus for use as a glazing pane having a sheet of glazing material and an electrically actuated variable transmission layer facing the sheet of glazing material is also disclosed. The layer is sandwiched between a first electrode and a second electrode. There is an electric field generator in electrical communication with the electrodes and being configured to produce an alternating electric field of sufficient strength and of a sufficiently high frequency to switch a selected region of the layer in between the first and second electrodes.
16 Citations
28 Claims
- 1. A method of switching an electrically actuated variable transmission layer, the layer being between a first electrode and a second electrode, wherein a sufficiently high frequency alternating electric field is applied between the first and second electrodes such that a selective region of the layer in between the first and second electrodes is switched, wherein the frequency of the applied electric field is greater than 1 kHz.
- 14. Apparatus for use as a glazing pane, comprising a sheet of glazing material and an electrically actuated variable transmission layer facing the sheet of glazing material, the layer being sandwiched between a first electrode and a second electrode, and an electric field generator in electrical communication with the electrodes and being configured to produce an alternating electric field of sufficient strength and of a sufficiently high frequency to switch a selected region of the layer in between the first and second electrodes, wherein the electric field generator is able to generate an alternating electric field having a frequency greater than 1 kHz.
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26. Use of an electrically actuated variable transmission layer by applying an electric field across the entire layer of sufficient magnitude to switch the layer on and of a sufficiently high frequency to simultaneously produce:
- (i) a graded transmission region in a first portion of the layer, and (ii) a transparent region in a second portion of the layer.
- View Dependent Claims (27, 28)
Specification