(19)

(11)

EP 2 470 707 A1

(12)

(43) Date of publication: 04.07.2012 Bulletin 2012/27 (21) Application number: 10812330.8 (22) Date of filing: 27.08.2010

(51) International Patent Classification (IPC):  D06F 37/20(2006.01) (86) International application number: PCT/KR2010/005813 (87) International publication number: WO 2011/025317 (03.03.2011 Gazette 2011/09)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 27.08.2009 KR 20090080121 27.08.2009 KR 20090079912 27.08.2009 KR 20090079923 (71) Applicant: LG Electronics Inc. Seoul 150-721 (KR)	(72) Inventors: JANG, Jae Hyuk Seoul 153-802 (KR) KOO, Bon Kwon Seoul 153-802 (KR)