Filter and plasma display device thereof

Details Filter and plasma display device thereof Filter and plasma display device thereof

2011-08-02

2011-08-02

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

Reexamination Certificate

active

07990034

ABSTRACT:
A filter for a display panel includes a base unit and an external light shielding sheet. The sheet includes a plurality of pattern units provided in spaced relation adjacent the base unit to absorb external light. The base unit includes a dye or pigment for absorbing light in a specific wavelength region, and refractive indexes of the pattern units are greater than a refractive index of the base unit. The pattern units may have the same or different refractive indexes.

REFERENCES:
patent: 2006/0051586 (2006-03-01), Park et al.
patent: 2006/0250064 (2006-11-01), Park et al.
patent: 2007/0145897 (2007-06-01), Kim et al.
patent: 1 339 082 (2003-08-01), None
patent: 1 677 336 (2006-07-01), None
patent: 1 770 750 (2007-04-01), None
European Office Action dated Nov. 26, 2008.

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