Wide viewing angle reflective display

Details Wide viewing angle reflective display Wide viewing angle reflective display

2005-04-26

2005-04-26

Epps, Georgia (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S222100

Reexamination Certificate

active

06885496

ABSTRACT:
A reflective display having a plurality of approximately hemispherical high refractive index (η1) transparent hemi-beads substantially covering and protruding inwardly from a transparent sheet's inward surface. The transparent sheet, which has an outward viewing surface, has a refractive index (η2) which can be low (i.e. η1≈1.92 and η2≈1.59). A member is selectably moved into an intense evanescent wave region at the hemi-beads' inward side to selectably frustrate substantial total internal reflection of light rays. The member can be a plurality of light scattering particles suspended in a low refractive index (η3≈1.27) electrophoresis medium and electrophoretically moved into or out of the intense evanescent wave region.

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