Electrophoretic multi-color display device

Details Electrophoretic multi-color display device Electrophoretic multi-color display device

2008-01-29

2008-01-29

Mack, Ricky (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C345S107000, C430S032000

Reexamination Certificate

active

07324263

ABSTRACT:
The electrophoretic multi-color display device has a plurality of cells (10, 10′, 10″, . . . ) with an electrophoretic medium (14) and pixel electrodes (11, 11′, 11″, . . . ) for selecting a subgroup of cells. A color filter array (13) is associated with the pixel electrodes. The color filter array (13) and the pixel electrodes (11, 11′, 11″, . . . ) are provided at the same side of the electrophoretic medium (14). Preferably, the cells (10, 10′, 10″, . . . ) of the color filter array (13) are arranged according to a matrix and are disposed along lines registering with the pixel electrodes (11, 11′, 11″, . . . ). Preferably, an insulating material (17) with a relatively low refractive index is provided between the pixel electrodes (11, 11′, 11″ . . . ) and the color filter array (13). Preferably, the insulating material (17) is selected from the group formed by a fluor-polymer, a low-dielectric inorganic film and a low-dielectric nano-porous film.

REFERENCES:
patent: 6850355 (2005-02-01), Liang et al.
patent: 2002/0167480 (2002-11-01), Johnson et al.
patent: WO03012542 (2003-02-01), None
patent: WO03050607 (2003-06-01), None

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