Electrochromic display using bipolar ion-exchange membrane

Details Electrochromic display using bipolar ion-exchange membrane Electrochromic display using bipolar ion-exchange membrane

1985-12-10

1987-12-29

Punter, William H.

G02F 123

Patent

active

047156910

ABSTRACT:
An electrochromic display composed of a transparent electroconductive membrane, an electrochromic membrane, an ion-exchange membrane and a counter electrode in a laminated structure. The ion-exchange membrane is a bipolar ion-exchange membrane composed of at least one cation-exchange membrane layer having cation-exchange groups and at least one anion-exchange membrane layer containing anion-exchange groups in a laminated structure. The electrochromic display has a superior response speed, contrast and resolving power as well as a long service life.

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