US 7,321,186 B2
Front filter, and plasma display apparatus having the same
Young Sung Kim, Yongin-si (Korea, Republic of); Kyung Ku Kim, Seoul (Korea, Republic of); Hong Rae Cha, Seoul (Korea, Republic of); Myeong Soo Chang, Ociwhang-si (Korea, Republic of); Byung Gil Ryu, Seoul (Korea, Republic of); and Eun Ho Yoo, Goyang-si (Korea, Republic of)
Assigned to LG Electronics Inc., Seoul (Korea, Republic of)
Filed on Mar. 31, 2004, as Appl. No. 10/812,903.
Claims priority of application No. 10-2003-0020490 (KR), filed on Apr. 01, 2003.
Prior Publication US 2004/0198096 A1, Oct. 07, 2004
Int. Cl. H01R 13/73 (2006.01); H01J 61/40 (2006.01)
U.S. Cl. 313—112  [313/581; 313/479; 359/359; 359/885; 349/104] 16 Claims
OG exemplary drawing
 
1. A front filter for a plasma display apparatus, the front filter comprising:
at least two optical filter films coupled over a surface of a plasma display panel; and
an adhesive layer for adhering the at least two optical filter films to each other, the adhesive layer including a conductive powder to shield electromagnetic waves, said conductive powder decentralized in the adhesive layer to within a predetermined concentration range by volume ratio relative to an amount of adhesive agent in the adhesive layer, said predetermined concentration range set to allow the plasma display panel to achieve a desired transmission rate.