Title:
DRIVE SYSTEM OF ECD DEVICE
Document Type and Number:
Japanese Patent JPS5612692
Kind Code:
A
Abstract:
A drive system is provided for driving an electrochromic display cell including an electrochromic material, a predetermined number of display electrodes, and a counter electrode confronting them, different combination of the display electrodes defining different desired display patterns. The drive system comprises a coloration circuit and a bleaching circuit driven at the same time. The coloration circuit is adapted for conducting coloration operations by applying a coloration voltage to selected ones of the display electrodes. The bleaching circuit is adapted for conducting bleaching operations by applying a bleaching voltage to the remaining display electrodes.
Inventors:
HASHIMOTO SADAKATSU
Application Number:
JP8845479A
Publication Date:
February 07, 1981
Filing Date:
July 11, 1979
Export Citation:
Assignee:
SHARP KK
International Classes:
G02F1/163; G09G3/20; G09G3/16; G09G3/19; (IPC1-7): G09G3/16
Domestic Patent References:
| JPS5454060A | 1979-04-27 |