| 主权项 |
1. An auxiliary keyboard for disposing on a tablet PC, comprising:
an insulating board integrally formed, the insulating board comprising:
a sheet having a first surface and an opposite second surface, wherein the sheet has a plurality of portions respectively defining a plurality of thru holes penetrating the first surface and the second surface;a plurality of resilient supporting portions each having a first end and an opposite second end, wherein the first end of each resilient supporting portion connects to the sheet, and the resilient supporting portions are respectively connected to the portions of the sheet; anda plurality of combined portions respectively connected to the second ends of the resilient supporting portions, wherein the thickness of each combined portion is about 0.05 mm to 1 mm; and a plurality of conductive keys each defined by a bonded portion and an exposed portion, wherein the bonded portions of the conductive keys are respectively and seamlessly coupled to the combined portions, and the exposed portions are arranged to allow exposure from the insulating board; wherein when the second surface of the insulating board is disposed on the tablet PC, each combined portion and a touch panel of the tablet PC are arranged with a predetermined distance; wherein when at least one of the exposed portions is pressed, the resilient supporting portion corresponding to the pressed exposed portion is deformed which causes the combined portion to correspondingly press against the touch panel. |
