Patent · US Active

Driving methods for color display devices

US9501981B2 · kind B2 · utility

96Cited by

5References

7Claims

0Family size

Assignee

E Ink California, LLC · US

Inventors

Craig Lin · Oakland, US
Chi-Mao Hung · Hsinchu, TW

Key dates

Filing date	May 15, 2014
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Dec 16, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG09G2310/068
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention provides driving methods for electrophoretic color display devices. The backplane system used for the driving methods is found to be simpler which renders color display devices more cost effective. More specifically, the driving method comprises first driving all pixels towards a color state by modulating only the common electrode, followed by driving all pixels towards their desired color states by maintaining the common electrode grounded and applying different voltages to the pixel electrodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.