Electro-optic system configured to reduce a perceived color change
First Claim
1. An electrochromic system comprising:
- an electrochromic element comprising;
a front element comprising first and second surfaces;
a rear element comprising third and fourth surfaces, wherein said front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, such that said second surface and said third surface face one another;
a transparent first electrode comprising a layer of conductive material carried on said second surface;
an electrochromic medium contained in said chamber, wherein said electrochromic medium is adapted to be in at least a high transmittance state and a low transmittance state; and
an at least partially transmissive, partially reflective second electrode; and
a display device in optical communication with said electrochromic element, said display device comprising;
at least one light source; and
said display device being configured to emit at least a first primary and a second primary, and said first and second primaries each having a color (u′
,v′
) when viewed through said electrochromic element in approximately said high state and a second color (u′
,v′
) when viewed through said electrochromic element in approximately said low transmittance state, and a difference in said first and second colors (Δ
Eu′
,v′
) for said first and second primaries is less than approximately 0.06.
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Accused Products
Abstract
An electro-optic system is provided that includes a front element a rear element, and an electro-optic medium, the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state. The electro-optic system further includes a display device in optical communication with the electro-optic element, the display device including at least one light source and is configured to emit at least a first primary and a second primary, the first and second primaries each having a first hue (hab) when viewed through the electro-optic element in approximately the high transmittance state and a second hue (hab′) when viewed through the electro-optic element in approximately the low transmittance state, wherein a change in the first and second hues (Δhab) for both first and second primaries is less than approximately 31 degrees.
156 Citations
20 Claims
-
1. An electrochromic system comprising:
-
an electrochromic element comprising; a front element comprising first and second surfaces; a rear element comprising third and fourth surfaces, wherein said front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, such that said second surface and said third surface face one another; a transparent first electrode comprising a layer of conductive material carried on said second surface; an electrochromic medium contained in said chamber, wherein said electrochromic medium is adapted to be in at least a high transmittance state and a low transmittance state; and an at least partially transmissive, partially reflective second electrode; and a display device in optical communication with said electrochromic element, said display device comprising; at least one light source; and said display device being configured to emit at least a first primary and a second primary, and said first and second primaries each having a color (u′
,v′
) when viewed through said electrochromic element in approximately said high state and a second color (u′
,v′
) when viewed through said electrochromic element in approximately said low transmittance state, and a difference in said first and second colors (Δ
Eu′
,v′
) for said first and second primaries is less than approximately 0.06. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A rearview mirror comprising:
-
an electro-optic element comprising; a front element comprising first and second surfaces; a rear element comprising third and fourth surfaces; at least one reflective surface; and an electro-optic medium in optical communication between said front element and said rear element, wherein said electro-optic medium is configured to adjust between at least a high transmittance state and a low transmittance state; and a display device in optical communication with said electro-optic element, said display device comprising; at least one light source; and said display device being configured to emit at least a first primary and a second primary, and said first and second primaries each having a color (u′
,v′
) when viewed through said electrochromic element in approximately said high state and a second color (u′
,v′
)′
when viewed through said electrochromic element in approximately said low transmittance state, and a difference in said first and second colors (Δ
Eu′
,v′
) for said first and second primaries is less than approximately 0.06. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
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19. A electrochromic system comprising:
-
an electrochromic element comprising; a front element comprising first and second surfaces; a rear element comprising third and fourth surfaces, wherein said front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, such that said second surface and said third surface face one another; a transparent first electrode comprising a layer of conductive material carried on said second surface; are electrochromic medium contained in said chamber, wherein said electrochromic medium is adapted to be in at least a high transmittance state and a low transmittance state; and a partially transmissive, partially reflective layer; and a display device in optical communication with said electrochromic element, said display device comprising; at least one light source; and said display device being configured to emit at least one primary that is light having first color (u′
,v′
) when viewed through said electrochromic element in approximately said high state and a second color (u′
,v′
)′
when viewed through said electrochromic element in approximately said low state, and a difference in said first and second colors (Δ
Eu′
,v′
) is less than approximately 0.09, wherein said at least one primary is at least one of a yellow color and an amber color.
-
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20. An electrochromic system comprising:
an electrochromic element comprising; a front element comprising first and second surfaces; a rear element comprising third and fourth surfaces, wherein said front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, such that said second surface and said third surface face one another; a transparent first electrode comprising a layer of conductive material carried on said second surface; an electrochromic medium contained in said chamber;
wherein said electrochromic medium is adapted to be in at least a high transmittance state and a low transmittance state; anda partially transmissive, partially reflective layer; and a display device in optical communication with said electrochromic element, said display device comprising; at least one light source; and said display device being configured to emit a primary that is light having a blue color, and said primary having a first color (u′
,v′
) when viewed through said electrochromic element in approximately said high state and a second color (u′
,v′
)′
when viewed through said electrochromic element in approximately said low state, and a difference in said first and second colors (Δ
Eu′
,v′
) is less than approximately 0.07.
Specification