See-through dimming panel
First Claim
1. A see-through dimming panel, comprising:
- a first transparent substrate layer;
a second transparent substrate layer;
a suspended-particle-device (SPD) layer between the first and second transparent substrate layers;
a first transparent conductor layer between the first transparent substrate layer and the SPD layer;
a second transparent conductor layer between the second transparent substrate layer and the SPD layer;
a first electrode electrically coupled to the first transparent conductor layer;
a second electrode electrically coupled to a first end of the second transparent conductor layer; and
a third electrode electrically coupled to a second end of the second transparent conductor layer opposite the first end;
wherein an electric potential difference applied between the first and second electrodes controls a transmittance level of the SPD layer; and
wherein an electric potential difference applied between the second and third electrodes controls a speed at which the transmittance level of the SPD layer decreases when the electric potential difference applied between the first and second electrodes is decreased.
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Accused Products
Abstract
A see-through dimming panel includes first and second transparent substrate layers and suspended-particle-device (SPD) layer therebetween. A first transparent conductor layer is between the first transparent substrate layer and the SPD layer, and a second transparent conductor layer is between the second transparent substrate layer and the SPD layer. A first electrode is electrically coupled to the first transparent conductor layer. Second and third electrodes are electrically coupled to opposite ends of the second transparent conductor layer. An electric potential difference applied between the first and second electrodes controls a transmittance level of the SPD layer. An electric potential difference applied between the second and third electrodes, which results in a transverse electric field, controls a speed at which the transmittance level of the SPD layer decreases when the electric potential difference applied between the first and second electrodes controls is decreased.
21 Citations
20 Claims
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1. A see-through dimming panel, comprising:
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a first transparent substrate layer; a second transparent substrate layer; a suspended-particle-device (SPD) layer between the first and second transparent substrate layers; a first transparent conductor layer between the first transparent substrate layer and the SPD layer; a second transparent conductor layer between the second transparent substrate layer and the SPD layer; a first electrode electrically coupled to the first transparent conductor layer; a second electrode electrically coupled to a first end of the second transparent conductor layer; and a third electrode electrically coupled to a second end of the second transparent conductor layer opposite the first end; wherein an electric potential difference applied between the first and second electrodes controls a transmittance level of the SPD layer; and wherein an electric potential difference applied between the second and third electrodes controls a speed at which the transmittance level of the SPD layer decreases when the electric potential difference applied between the first and second electrodes is decreased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A see-through, near-eye mixed reality head mounted display device, comprising:
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a see-through display region within a field-of-view (FOV) of a user wearing the device; a see-through dimming panel overlapping the see-through display region; wherein one or more virtual images are displayable within the see-through display region; and wherein the see-through dimming panel includes a first transparent conductor layer; a second transparent conductor layer; a suspended-particle-device (SPD) layer between the first and second transparent conductor layers; a first electrode electrically coupled to the first transparent conductor layer; a second electrode electrically coupled to a first end of the second transparent conductor; a third electrode electrically coupled to a second end of the second transparent conductor; and circuitry configured to control the electric potential difference between the first and second electrodes, and the electric potential difference between the second and third electrodes, in order to adjust a transmittance of the see-through dimming panel; wherein the electric potential difference applied by the circuitry between the first and second electrodes controls a level of the transmittance of the see-through dimming panel; and wherein the electric potential difference applied by the circuitry between the second and third electrodes controls a speed at which the level of transmittance of the see-through dimming panel decreases when the electric potential difference applied between the first and second electrodes is decreased by the circuitry. - View Dependent Claims (13, 14, 15)
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16. A method for use with a suspended-particle-device (SPD) layer sandwiched between a first transparent conductor layer and a second transparent conductor layer, the method comprising:
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adjusting an electric potential difference between the first and second transparent conductor layers in order to adjust a transmittance of the SPD layer; and adjusting an electric potential difference between first and second opposing ends of the second transparent conductor layer in order to adjust a rate at which the transmittance of the SPD layer is adjusted when the electric potential difference applied between the first and second transparent conductor layers is decreased. - View Dependent Claims (17, 18, 19, 20)
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Specification