EP 1062628 A1 20001227 - GLASS KEYBOARD AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
GLASS KEYBOARD AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
GLASTASTATUR, SOWIE VERFAHREN ZUR HERSTELLUNG EINER GLASTASTUR
Title (fr)
CLAVIER EN VERRE, ET PROCEDE DE PRODUCTION D'UN CLAVIER EN VERRE
Publication
Application
Priority
- DE 19810327 A 19980311
- EP 9901431 W 19990305
Abstract (en)
[origin: DE19810327A1] The glass keyboard has a keyboard surface (4) of a flexible thin glass plate (2) and at least one carrier material plate (6) with electrically conducting layers (8,10) on their facing sides held apart by a distance piece. The electrically conducting layers are brought into contact at the essentially point-shaped pressure loading points when the glass plate is subjected to pressure. The keyboard surface is flat in the edge regions (20) and with a slight convex outward curvature in the switching region. The thin glass plate forming the keyboard surface is stuck to the carrier plate in the deep-drawn state An Independent claim is also included for a method of producing a glass keyboard.
IPC 1-7
IPC 8 full level
G06F 3/033 (2006.01); G06F 3/041 (2006.01)
CPC (source: EP US)
G06F 3/045 (2013.01 - EP US); H01H 2239/038 (2013.01 - EP)
Citation (search report)
See references of WO 9946725A1
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
DE 19810327 A1 19990916; AU 3143999 A 19990927; EP 1062628 A1 20001227; WO 9946725 A1 19990916
DOCDB simple family (application)
DE 19810327 A 19980311; AU 3143999 A 19990305; EP 9901431 W 19990305; EP 99913229 A 19990305