Multi-color electrochromic apparatus and methods
First Claim
1. An electrochromic layer for a multi-color electrochromic device, comprising:
- a first area of a first color electrochromic composition arranged within a layer on a substrate; and
a second area of a second color electrochromic composition arranged within the layer and laterally positioned with respect to the first area on the substrate;
wherein the second composition is different than the first composition.
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Abstract
The present disclosure provides apparatus and methods for multi-color electrochromic devices. In one embodiment, pixels of a first color electrochromic material (i.e. pigment) are arranged in first areas on a substrate with pixels of a second color electrochromic material in second areas to define a two-dimensional pattern of the first and second color on the substrate. When the applied electric field or current supplied to each pixel is changed, the device may produce the respective colors of the electrochromic materials and may produce a blended color because of the arrangement of the pixels. In accordance with further aspects of the disclosure, the electrochromic materials may form a design, pattern, logo, or picture when the electrochromic materials are activated. In yet further aspects of the disclosure, a substrate is masked and unmasked as a plurality of colors are applied to the substrate to produce a multi-color electrochromic display.
90 Citations
8 Claims
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1. An electrochromic layer for a multi-color electrochromic device, comprising:
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a first area of a first color electrochromic composition arranged within a layer on a substrate; and a second area of a second color electrochromic composition arranged within the layer and laterally positioned with respect to the first area on the substrate; wherein the second composition is different than the first composition. - View Dependent Claims (2, 3, 4, 5)
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6. An electrochromic layer for an electrochromic device, comprising:
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a plurality of first pixels of a first color electrochromic composition arranged on a substrate; and a plurality of second pixels of a different second color electrochromic composition arranged on the substrate and laterally positioned with respect to the plurality of first pixels, the plurality of second pixels interspersed in a common layer with the plurality of first pixels; wherein the plurality of the first pixels and the plurality of the second pixels in the layer are interspersed such that they are collectively perceived as having a color based on areal color densities or percentages of the first and second colors. - View Dependent Claims (7, 8)
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Specification