EP 4103422 A1 20221221 - PRODUCTION OF PLASTIC TOUCH CONTROLS USING LASER-ETCHED CONDUCTIVE LAYERS
Title (en)
PRODUCTION OF PLASTIC TOUCH CONTROLS USING LASER-ETCHED CONDUCTIVE LAYERS
Title (de)
HERSTELLUNG VON KUNSTSTOFFBERÜHRUNGSKONTROLLELEMENTEN UNTER VERWENDUNG VON LASERGEÄTZTEN LEITFÄHIGEN SCHICHTEN
Title (fr)
PRODUCTION DE COMMANDES TACTILES EN PLASTIQUE AU MOYEN DE COUCHES CONDUCTRICES GRAVÉES AU LASER
Publication
Application
Priority
- IT 202000002617 A 20200210
- IB 2021052932 W 20210408
Abstract (en)
[origin: WO2021161295A1] A method for manufacturing touch controls (100) provided with surface symbols (105) backlit by light guide (109) is disclosed. Said touch controls (100) are used to detect the interaction between a finger (102) and the magnetic field (103) generated by conductive traces (104). In particular, a process is disclosed for making said conductive traces (104) and said light guide (109), so that they are free from dispersive phenomena and adapted to the typical aesthetic requirements for this type of products, namely an embossed surface finish or a smooth surface finish. The process comprises a combination between a layer of conductive coating (108) and a layer of insulating coating (107), said layers being applied to the inner surface, i.e., opposite the physical interaction area, of a transparent plastic support (101), said inner surface, generally the lower surface, being therefore in raw plastic material or already treated with decorative coatings.
IPC 8 full level
B60K 35/00 (2006.01); G06F 3/041 (2006.01); H03K 17/96 (2006.01); H05K 3/02 (2006.01)
CPC (source: EP)
H03K 17/9505 (2013.01); H03K 17/96 (2013.01); H05K 1/0274 (2013.01); G06F 3/046 (2013.01); G06F 2203/04103 (2013.01); H03K 2017/9507 (2013.01); H05K 1/03 (2013.01); H05K 3/027 (2013.01); H05K 3/28 (2013.01); H05K 2201/0108 (2013.01)
Citation (search report)
See references of WO 2021161295A1
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021161295 A1 20210819; WO 2021161295 A4 20211021; EP 4103422 A1 20221221
DOCDB simple family (application)
IB 2021052932 W 20210408; EP 21723906 A 20210408