Electrochromic device with specific resistances
First Claim
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1. An electrochromic device comprising:
- a first electrode layer;
an intermediate layer including an electrochromic layer;
a second electrode layer, said first electrode layer, said intermediate layer and said second electrode layer being laminated in succession; and
an electrode member connected to one of said first and second electrode layers and extending in a predetermined direction transverse to the direction of lamination of said first electrode layer, said intermediate layer and said second electrode layer;
wherein the resistance R1, R2 respectively of said first and second electrode layers and the internal resistance R3 of said intermediate layer satisfy the following condition;
##EQU8## and resistances R1, R2 and R3 being defined as follows;
##EQU9## wherein ρ
.sub. ;
resistivity of said first electrode layer;
ρ
2 ;
resistivity of said second electrode layer;
ρ
3 ;
ion resistivity of said intermediate layer;
d1 ;
thickness of said first electrode layer;
d2 ;
thickness of said second electrode layer;
d3 ;
thickness of said intermediate layer;
l;
shortest of respective lengths, in said predetermined direction, of the electrode layer other than said one electrode layer, said electrode member and said intermediate layer; and
S;
superposed area of said first electrode layer, said intermediate layer and said second electrode layer, as viewed along the direction of lamination thereof.
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Abstract
An electrochromic device comprises a first electrode layer, an intermediate layer including an electrochromic layer, a second electrode layer, the first electrode layer, intermediate layer and second electrode layer being laminated in succession, and an electrode member connected to one of the first and second electrode layers and extending in a predetermined direction perpendicular to the direction of lamination of the first electrode layer, intermediate layer and second electrode layer. The resistances R1, R2 respectively of the first and second electrode layers and the internal resistance R3 of the intermediate layer satisfy predetermined conditions to achieve uniform coloration.
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Citations
12 Claims
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1. An electrochromic device comprising:
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a first electrode layer; an intermediate layer including an electrochromic layer; a second electrode layer, said first electrode layer, said intermediate layer and said second electrode layer being laminated in succession; and an electrode member connected to one of said first and second electrode layers and extending in a predetermined direction transverse to the direction of lamination of said first electrode layer, said intermediate layer and said second electrode layer; wherein the resistance R1, R2 respectively of said first and second electrode layers and the internal resistance R3 of said intermediate layer satisfy the following condition;
##EQU8## and resistances R1, R2 and R3 being defined as follows;
##EQU9## wherein ρ
.sub. ;
resistivity of said first electrode layer;ρ
2 ;
resistivity of said second electrode layer;ρ
3 ;
ion resistivity of said intermediate layer;d1 ;
thickness of said first electrode layer;d2 ;
thickness of said second electrode layer;d3 ;
thickness of said intermediate layer;l;
shortest of respective lengths, in said predetermined direction, of the electrode layer other than said one electrode layer, said electrode member and said intermediate layer; andS;
superposed area of said first electrode layer, said intermediate layer and said second electrode layer, as viewed along the direction of lamination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrochromic device comprising:
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a first electrode layer; an intermediate layer including an electrochromic layer; a second electrode layer, said first electrode layer, said intermediate layer and said second electrode layer being laminated in succession; and an electrode member connected to one of said first and second electrode layers and extending in a predetermined direction transverse to the direction of lamination of said first electrode layer, said intermediate layer and said second electrode layer; wherein the resistance R1 and R2 respectively of said first and second electrode layers and the internal resistance R3 of said intermediate layer satisfy the following conditions;
space="preserve" listing-type="equation">R.sub.1 <
R.sub.3and
space="preserve" listing-type="equation">R.sub.2 <
R.sub.3said resistances R1, R2 and R3 being defined as follows;
##EQU10## wherein ρ
.sub. ;
resistivity of said first electrode layer;ρ
2 ;
resistivity of said second electrode layer;ρ
3 ;
ion resistivity of said intermediate layer;d1 ;
thickness of said first electrode layer;d2 ;
thickness of said second electrode layer;d3 ;
thickness of said intermediate layer;l;
shortest of respective lengths, in said predetermined direction, of the electrode layer other than said one electrode layer, said electrode member and said intermediate layer; andS;
superposed area of the said first electrode layer, said intermediate layer and said second electrode layer, as viewed along the direction of lamination thereof. - View Dependent Claims (9)
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10. An electrochromic device comprising:
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a first electrode layer; an intermediate layer including an electrochromic layer; a second electrode layer, said first electrode layer, said intermediate layer and said second electrode layer being laminated in succession; and a first electrode member and a second electrode member connected, respectively, to said first electrode layer and said second electrode layer, each electrode member extending in a predetermined direction transverse to the direction of lamination of said first electrode layer, said intermediate layer and said second electrode layer; wherein the resistance R1, R2 respectively of said first and second electrode layers and the internal resistance R3 of said intermediate layer satisfy the following condition;
##EQU11## said resistances R1, R2 and R3 being defined as follows;
##EQU12## wherein ρ
.sub. ;
resistivity of said first electrode layer;ρ
2 ;
resistivity of said second electrode layer;ρ
3 ;
ion resistivity of said intermediate layer;d1 ;
thickness of said first electrode layer;d2 ;
thickness of said second electrode layer;d3 ;
thickness of said intermediate layer;l;
shortest of respective lengths, in said predetermined direction, of said first and second electrode layers, said first and second electrode members and said intermediate layer; andS;
superposed area of said first electrode layer, said intermediate layer and said second electrode layer, as viewed along the direction of lamination thereof. - View Dependent Claims (11, 12)
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Specification