Electrochromic display element and process

Details Electrochromic display element and process Electrochromic display element and process

G - Physics

02

F

345/6

G02F 1/00 (2006.01) C30B 35/00 (2006.01) G02F 1/15 (2006.01)

Patent

CA 1043006

ELECTROCHROMIC DISPLAY ELEMENT AND PROCESS Abstract of the Invention An electrochromic display for selectively displaying optical patterns comprising a sandwich type structure which includes transparent front electrodes, electrochromic layers on the front electrodes, an electrolyte and a special electroreactive layer on a rear electrode. The electroreactive layer, which serves as hydrogen source, is composed of electrochromic material which is first oxidized and subsequently heat treated in a hydrogen or forming gas atmosphere to improve the operating and life charac- teristics of the display. The electrodes are mounted or deposited respectively on parallel substrates which form the outer structures of a hermetically sealed display arrangement. The electroreactive layer can be a single layer structure serving the functions of both the rear electrode and hydrogen source material.

253349

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