Electrophoretic display device

摘要: PROBLEM TO BE SOLVED: To provide a device in which no deterioration of liquid dispersion is caused and has excellent durability shows improved picture image contrast display quality by successively generating high level driving voltage for comparatively short time then low voltage. SOLUTION: This 20 provided with 10 that prepared dispersing pigment particles 10b colored dispersant 10a placed the space to be sealed between first substrate 22 second 24 generator 32 applying electrode 26 28 subject electrophoresis. generates At this time, applied only required separate slightly move stuck from, e.g. surface 26, prevent any from being retained on 26. Thereafter, application at electrolysis caused, continued period completely 10b. Thus, durability, can improved. COPYRIGHT: (C)1997,JPO