Control of electrochromic devices having electrochromic dyes
AssigneeGlass Dyenamics, Inc.
InventorsAnoop Agrawal, John Cronin, Lori Adams, Sahila Perananthan
Life of this patent
Estimating the term…
Abstract
This disclosure provides compositions of electrochromic dyes, functionalized electrochromic dyes and dye macromers which may be incorporated into electrochromic devices with tailored optical properties. The disclosure provides electrochromic devices and electrochromic materials which do not use halogenated anions. This disclosure also provides EC compositions and devices for controlling color.
Claims28
An electrochromic device which reversibly colors from a bleached state to a dark state, wherein in a fully colored state, a* and b* are between +6 and −20, and the electrochromic device contains at least three dyes, wherein one of the at least three dyes is a viologen salt, and two dyes are selected from two different classes of dyes, wherein the two different classes of dyes are selected from the group consisting of a thiophene, a phenothiazine, a phenazine, an indandione, a triphenylamine, a dithiafulvenyl, a tetrahydroquinoline, a carbazole, an anthraquinone, and an indoline.
An electrochromic device having two electrically conductive coatings deposited on two clear substrates, wherein at least one of the two electrically conductive coatings is transparent, and the electrochromic device contains an electrolyte between the two electrically conductive coatings, wherein the electrochromic device reversibly colors from a bleached state to a dark state, wherein in a fully colored state, a* and b* are between +6 and −20, and the electrolyte contains at least three dyes, wherein one of the at least three dyes is a viologen salt, and the two dyes are selected from two different classes of dyes, wherein the two different classes of dyes are selected from the group consisting of a thiophene, a phenothiazine, a phenazine, an indandione, a triphenylamine, a dithiafulvenyl, a tetrahydroquinoline, a carbazole, an anthraquinone, and an indoline.
An electrochromic device having two electrically conductive coatings deposited on two substrates, wherein at least one of the two substrates is transparent, and the electrochromic device contains an electrolyte between the two electrically conductive coatings, wherein the device reversibly colors from a bleached state to a dark state, wherein in a fully colored state, a* and b* are between +6 and −20, and the electrolyte contains at least three dyes, wherein one of the at least three dyes is a viologen salt, and two dyes are selected from two different classes of dyes, wherein the two different classes of dyes are selected from the group consisting of a thiophene, a phenothiazine, and a phenazine.
Dependencies are inferred from the claim text.