(19)

(11)

EP 3 114 531 A2

(12)

(88) Date of publication A3: 12.11.2015 (43) Date of publication: 11.01.2017 Bulletin 2017/02 (21) Application number: 15736315.1 (22) Date of filing: 06.03.2015

(51) International Patent Classification (IPC):  G02F 7/00(2006.01) (86) International application number: PCT/IB2015/051665 (87) International publication number: WO 2015/132772 (11.09.2015 Gazette 2015/36)

(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 (30) Priority: 07.03.2014 EP 14425024 (71) Applicant: Elettronica S.p.A. 00131 Roma (IT)

(72) Inventors: ALBERTONI, Alessandro I-00131 Roma (IT) TAFUTO, Antonio I-00131 Roma (IT) BARTOCCI, Marco I-00131 Roma (IT) GEMMA, Maurizio I-00131 Roma (IT) MAZZOLI, Raffaella I-00131 Roma (IT) ONORI, Daniel I-56124 Pisa (IT) LAGHEZZA, Francesco I-56124 Pisa (IT) GHELFI, Paolo I-56124 Pisa (IT) PINNA, Sergio I-56124 Pisa (IT) SCOTTI, Filippo I-56124 Pisa (IT) SERAFINO, Giovanni I-56124 Pisa (IT) BOGONI, Antonella I-56124 Pisa (IT) (74) Representative: Boggio, Luigi et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)