Image display apparatus

Details Image display apparatus Image display apparatus

2011-03-08

2011-03-08

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

Reexamination Certificate

active

07903323

ABSTRACT:
An image display apparatus comprising two substrates at least one of which is transparent, ribs for maintaining a distance between the substrates and display particles that are sealed between the substrates in a powder state, and displaying an image by generating an electric field between the substrates so that the display particles are moved,wherein of contact faces to the display particles in the gap between the substrates, at least the contact faces of ribs to the display particles have an arithmetic average roughness Ra in a range from 0.01 to 0.20 μm and an average interval Sm of irregularities in a range from 0.5 to 2.5 μm.

REFERENCES:
patent: 7436379 (2008-10-01), Matsuura et al.
patent: 7772754 (2010-08-01), Lee et al.
patent: 2006/0263927 (2006-11-01), Sakurai et al.
patent: 2004226768 (2004-08-01), None
patent: 2004077140 (2004-09-01), None

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