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EP 3 504 371 A1

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(43) Date of publication: 03.07.2019 Bulletin 2019/27 (21) Application number: 17872523.0 (22) Date of filing: 15.11.2017

(51) International Patent Classification (IPC):  D06F 37/24(2006.01) D06F 37/12(2006.01) D06F 37/42(2006.01) (86) International application number: PCT/KR2017/012929 (87) International publication number: WO 2018/093139 (24.05.2018 Gazette 2018/21)

(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 RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 21.11.2016 KR 20160155231 12.04.2017 KR 20170047447 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)	(72) Inventors: HAN, Ju Bum Seoul 04733 (KR) JUNG, Dong Ha Yongin-si Gyeonggi-do 16953 (KR) KANG, Jeong Hoon Seoul 05504 (KR) HONG, Kwan Woo Suwon-si Gyeonggi-do 16698 (KR) (74) Representative: Gulde & Partner  Patent- und Rechtsanwaltskanzlei mbB Wallstraße 58/59 10179 Berlin 10179 Berlin (DE) (56) References cited: :