Device for the regulation of light transmission
First Claim
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1. A window apparatus comprising:
- a window and a switchable device for regulation of light transmission,wherein said switchable device comprises;
a stack of layers which comprises a first substrate layer, a second substrate layer, a switching layer positioned between the first substrate layer and the second substrate layer wherein said switching layer comprises at least two separated compartments, a first conductive layer which is positioned between the switching layer and the first substrate layer, and a second conductive layer which is positioned between the switching layer and the second substrate layer, wherein said at least two separated compartments of said switching layer comprise a first compartment and a second compartment,where each of the separated compartments of the switching layer comprises a material which changes light transmissivity upon application of a voltage, and the first compartment comprises a different composition of a switching layer material than the second compartment,wherein the material in each of the compartments of the switching layer is, in each case independently, a liquid crystal switching layer material, and wherein the switching layer material of each compartment comprises one or more dichroic dyes dissolved in a liquid crystalline material,wherein the separated compartments are formed by surrounding solid borders and said second compartment is formed by a surrounding solid border within the compartment of said first compartment.
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Abstract
The present application concerns a switchable device for the regulation of light transmission, which has a compartmented structure, where the switching state of each of the compartments can be controlled individually.
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Citations
17 Claims
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1. A window apparatus comprising:
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a window and a switchable device for regulation of light transmission, wherein said switchable device comprises; a stack of layers which comprises a first substrate layer, a second substrate layer, a switching layer positioned between the first substrate layer and the second substrate layer wherein said switching layer comprises at least two separated compartments, a first conductive layer which is positioned between the switching layer and the first substrate layer, and a second conductive layer which is positioned between the switching layer and the second substrate layer, wherein said at least two separated compartments of said switching layer comprise a first compartment and a second compartment, where each of the separated compartments of the switching layer comprises a material which changes light transmissivity upon application of a voltage, and the first compartment comprises a different composition of a switching layer material than the second compartment, wherein the material in each of the compartments of the switching layer is, in each case independently, a liquid crystal switching layer material, and wherein the switching layer material of each compartment comprises one or more dichroic dyes dissolved in a liquid crystalline material, wherein the separated compartments are formed by surrounding solid borders and said second compartment is formed by a surrounding solid border within the compartment of said first compartment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification