| 摘要 |
PURPOSE:To enhance the response speed of coloring and decoloring of a display electrode by using a mixture of propylene carbonate, water, and gamma-butyrolactone as an electrolyte solvent. CONSTITUTION:An electrolytic soln. 6 is contained between a display electrode base 1 having a display electrode 2 and a counter electrode base 3 having a background material 5 and a counter electrode 4. Propylene carbonate, water, and gamma-butyrolactone are used as an electrolyte solvent. Said lactone has a b.p. of about 204 deg.C lower than that of said carbonate, and a viscosity of about 1.751cp at 25 deg.C also lower than that of said carbonate. A preferable compsn. of the electrolyte solvent is regulated to 10-90vol% propylene carbonate, 0.3-4.0vol% water, and 20-80vol% gamma-buryrolactone. |
