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(11)

EP 3 509 467 A1

(12)

(43) Date of publication: 17.07.2019 Bulletin 2019/29 (21) Application number: 17861383.2 (22) Date of filing: 18.10.2017

(51) International Patent Classification (IPC):  A47L 9/28(2006.01) A47L 7/02(2006.01) A47L 9/06(2006.01) (86) International application number: PCT/KR2017/011544 (87) International publication number: WO 2018/074848 (26.04.2018 Gazette 2018/17)

(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: 19.10.2016 KR 20160135608 03.01.2017 KR 20170000599 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)	(72) Inventors: LEE, Byoung In Suwon-si Gyeonggi-do 16700 (KR) KO, Young Ho Hwaseong-si Gyeonggi-do 18394 (KR) CHOI, Ji Won Suwon-si Gyeonggi-do 16676 (KR) LEE, Hak Bong Suwon-si Gyeonggi-do 16224 (KR) HAN, Seung Il Incheon 21621 (KR) KIM, Myeong Ho Suwon-si Gyeonggi-do 16516 (KR) (74) Representative: Walaski, Jan Filip et al Venner Shipley LLP 200 Aldersgate London EC1A 4HD London EC1A 4HD (GB)