ELECTROCHROMIC DISPLAY ELEMENT AND FULL-COLOR ELECTROCHROMIC DISPLAY ELEMENT
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Abstract
An electrochromic display element includes a pair of counter electrodes having therebetween an electrochromic compound represented by Formula (1), wherein the electrochromic compound becomes colored when being oxidized and becomes colorless when being reduced by a driving operation of the electrodes:
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- wherein R1 represents a substituted or unsubstituted aryl group; and R2 and R3 each represent a hydrogen atom or a substituent; X represents >N—R4, an oxygen atom or a sulfur atom; and R4 represents a hydrogen atom or a substituent.
20 Citations
22 Claims
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1-11. -11. (canceled)
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12. An electrochromic display element comprising a pair of counter electrodes having therebetween an electrochromic compound represented by Formula (1),
wherein the electrochromic compound becomes colored when being oxidized and becomes colorless when being reduced by a driving operation of the electrodes: wherein R1 represents a substituted or unsubstituted aryl group;
R2 and R3 each represent a hydrogen atom or a substituent;
X represents >
N—
R4, an oxygen atom or a sulfur atom; and
R4 represents a hydrogen atom or a substituent.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A full-color electrochromic display element comprising a pair of counter electrodes having therebetween a plurality of electrochromic compounds represented by Formula (1),
wherein the electrochromic compounds exhibit a different color with each other when being oxidized, and the electrochromic compounds become colorless when being reduced by a driving operation of the electrodes: wherein R1 represents a substituted or unsubstituted aryl group; and
R2 and R3 each represent a hydrogen atom or a substituent;
X represents >
N—
R4, an oxygen atom or a sulfur atom; and
R4 represents a hydrogen atom or a substituent.
Specification