Patent · US Active

Sub-pixel structure and pixel structure of color electrophoretic display

US8319724B2 · kind B2 · utility

15Cited by

0References

6Claims

0Family size

Assignee

E Ink Holdings Inc. · TW

Inventors

Yi-Ching Wang · Beijing, CN
Tzu-Ming Wang · Hsinchu, TW

Key dates

Filing date	Dec 27, 2008
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Apr 28, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/34
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A sub-pixel structure of color electrophoretic display includes a driving unit, a display unit and a transparent electrode, wherein the display unit is disposed on the driving unit and the transparent electrode is disposed on the display unit. The display unit includes a plurality of first charged particles and a plurality of second charged particles. A color of the first charged particles is different from a color of the second charged particles. Diameters of the first charged particles are greater than diameters of the second charged particles. The first charged particles and the second charged particles have the same electrical property. The sub-pixel structure of color electrophoretic display has high light utility efficiency.

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