Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate
2007-03-20
2007-03-20
Chang, Audrey Y. (Department: 2872)
Optical: systems and elements
Light interference
Produced by coating or lamina
C313S479000, C313S478000
Reexamination Certificate
active
10778367
ABSTRACT:
Disclosed is a front filter in a plasma display panel (PDP), in which the front filter comprises an impact-absorbing layer attached to a front surface of the panel and composed of one of EVA, acrylic polymers, and PVC to be able to absorb external impacts.
REFERENCES:
patent: 6548177 (2003-04-01), Hieda et al.
patent: 6833665 (2004-12-01), Wachi et al.
patent: 2003/0176124 (2003-09-01), Koike et al.
Cha Hong Rae
Chang Myeong Soo
Kim Kyung Ku
Kim Young Sung
Ryu Byung Gil
Chang Audrey Y.
Lee Hong Degerman Kang & Schmadeka
LG Electronics Inc.
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