Fig. 4: Unconventional design strategies to promote the development of the bistable electrochromic material/device field.
From: Green revolution in electronic displays expected to ease energy and health crises
a EC mechanism based on intramolecular proton-coupled electron transfer69. b Bistable performance of different types of EC technology. c Structure of a bistable EC device. TBA+, tetrabutyl ammonium ion; RHMA, EC polymer containing the benzoate-lactone-containing fluoran subunit and the p-phenylenediamine moiety69. d Promising applications of bistable EC devices in energy-saving displays—multicolor electronic label shelf and billboard68,69. e Mechanism of an ECD regulating the ambient light contrast ratio in an AR system71. (f) Color gamut and display images of the AR system with the ECD off and on according to different ambient lighting conditions in an office (400 lx), in shade (5000 lx), on a cloudy day (10000 lx), and on a sunny day (15 000 lx)71
