Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Polarizer or special ray transmission
Reexamination Certificate
2005-09-27
2005-09-27
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With optical device or special ray transmissive envelope
Polarizer or special ray transmission
C313S582000, C313S587000
Reexamination Certificate
active
06949872
ABSTRACT:
A plasma display panel includes a filter for controlling a light transmittance by selectively diffracting a light emitted from a discharge cell of a plasma display panel on the basis of an electric signal. A luminance efficacy can be enhanced by using the low-priced filter and the contrast of a plasma display panel can be improved.
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Foreign Office Action.
Chang Myeong Soo
Ryu Byung Gil
Colón German
Fleshner & Kim LLP
LG Electronics Inc.
Patel Nimeshkumar D.
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