Electrochromic device with color gradient and method of making the device
First Claim
1. A method of gradationally infusing a uniform thickness permeable medium with a material to obtain a gradational concentration of the material within the medium, when measured perpendicular to the direction of ion infusion, comprising:
- placing the material in a container;
inserting the permeable medium into the material within the container; and
removing the permeable medium from the material, in a manner so as to inject a gradational concentration of the material into the permeable medium.
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Accused Products
Abstract
A method of gradationally infusing a graded thickness permeable medium with a uniform concentration of a material is disclosed. A method of gradationally infusing a uniform thickness permeable medium with a gradational concentration of material is also disclosed. The method includes placing the material in a container, and inserting and removing the permeable medium in the container so that the permeable medium includes either a gradational or uniform concentration of the material therein dependent upon the thickness of the medium. The method disclosed also allows uniform thickness or graded thickness electrochromic materials to be gradationally infused with an ion source to provide a color gradient within an electrochromic device. An electrochromic device made according to this method is also disclosed.
92 Citations
21 Claims
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1. A method of gradationally infusing a uniform thickness permeable medium with a material to obtain a gradational concentration of the material within the medium, when measured perpendicular to the direction of ion infusion, comprising:
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placing the material in a container; inserting the permeable medium into the material within the container; and removing the permeable medium from the material, in a manner so as to inject a gradational concentration of the material into the permeable medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for making an electrochromic device adapted to provide a color intensity gradient during operation of the electrochromic device which comprises a substrate and thereon:
- a first electrode layer;
an electrochromic layer;
an ion conductive material;
a counter electrode and a second electrode layer in that order, the ion conductive layer being adapted to communicate ions between the electrochromic layer and the counter electrode upon application of a voltage across the first and second electrode layers, the method comprising;depositing at least one of the electrochromic layer and the counter electrode with a graded thickness gradient in at least one region when measured normal to the plane of the first or second electrode layer; and gradationally infusing the at least one of the electrochromic layer and the counter electrode having the thickness graded with a uniform concentration of ions prior to assembling the electrochromic device. - View Dependent Claims (11, 12)
- a first electrode layer;
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13. An electrochromic device which comprises a substrate and thereon:
- a first electrode layer;
an electrochromic material;
an ion conductive material;
a counter electrode and a second electrode layer in that order, said ion conductive layer being adapted to communicate ions between said electrochromic material and said counter electrode upon application of a voltage across said electrode layers, and wherein both of said electrochromic material and said counter electrode have a graded thickness in at least one region when measured normal to the plane of an electrode layer. - View Dependent Claims (14, 15, 16, 17, 18)
- a first electrode layer;
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19. A method of gradationally infusing a graded thickness permeable medium with a material to obtain a uniform concentration of the material throughout the permeable medium, comprising:
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placing the material in a container; inserting the permeable medium into the material within the container; and removing the permeable medium from the material, in a manner so as to inject a uniform concentration of the material into the permeable medium. - View Dependent Claims (20, 21)
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Specification