Touch sensitive electrode assembly for solid state wristwatches
AssigneeSharp Kabushiki Kaisha
InventorsTakehiko Sasaki, Tsutomu Nakamura
Life of this patent
Estimating the term…
Abstract
A front glass sheet having a viewing window and conventionally received within a casing of a solid state wristwatch, is made of electrically conductive glass material which manifests conductivity per se, for serving as one of the principal components of a touch sensitive electrode assembly. In one preferred form, the front glass sheet is made of amorphous (glass) semiconductor such as chalcogenide glass of resistivity less than several hundred K.OMEGA. cm.
Claims13
A touch sensitive switch assembly for a solid state wristwatch comprising:
- an enclosure of said solid state wristwatch for engagement with the wrist of a wearer, which is made of electrically conductive material for serving as one electrode of said touch sensitive switch;
- a front glass sheet received within said enclosure and having a viewing window;
- said front glass sheet being made of electrically conductive glass material which manifests electrical conductivity per se, for serving as a selectively touchable electrode of said touch sensitive switch;
- and
- an insulating member supporting said front glass sheet in said enclosure for providing electrical isolation therebetween.
A touch sensitive switch assembly for a solid state wristwatch comprising:
- an enclosure of said solid state wristwatch for engagement with the wrist of a wearer, said enclosure comprising electrically conductive material for serving as one electrode of said touch sensitive switch;
- a front glass sheet received within said enclosure and having a viewing window therein;
- an insulating member supporting said front glass sheet in said enclosure for providing electrical isolation therebetween;
- an integrated circuit means accommodated within said enclosure adjacent said front glass sheet;
- and
- an elastic connecting means conductively coupling said integrated circuit with said front glass sheet;
- said front glass sheet comprising electrically conductive glass material having a resistivity less than several hundred K.OMEGA. cm and consisting of chalcogenide glass.
A touch sensitive switch assembly for a solid state wristwatch comprising:
- an enclosure of said solid state wristwatch for engagement with the wrist of a wearer, said enclosure comprising electrically conductive material for serving as one electrode of said touch sensitive switch;
- a front glass sheet received within said enclosure and having a viewing window therein;
- an insulating member supporting said front glass sheet in said enclosure for providing electrical isolation therebetween;
- and
- display means provided beneath the viewing window and accomodated within said enclosure;
- said front glass sheet being pervious to light emission emerging from said light emitting display;
- said front glass sheet comprising electrically conductive glass material having a resistivity less than several hundred K.OMEGA.cm.
Dependencies are inferred from the claim text.