Title:
INPUT DEVICE WITH FORCE SENSING
Document Type and Number:
WIPO Patent Application WO/2011/142981
Kind Code:
A3
Abstract:
Devices and methods are provided that utilize a first electrode disposed on a first substrate and a second electrode disposed on a second substrate, where the first electrode and the second electrode define at least part of a variable capacitance. A third substrate is arranged between the first substrate and the second substrate, the third substrate having an opening arranged such that at least a portion of the first electrode and the second electrode overlap the opening. A transmission element is provided that partially overlaps the opening. The transmission element is physically coupled to the second electrode such that a force biasing the transmission element causes the second electrode to deflect relative to the first electrode, thus changing the variable capacitance. A measurement of the variable capacitance may then be used to determine force information
Inventors:
SCHEDIWY RICHARD (US)
BOLENDER ROBERT J (US)
SCHWARTZ ADAM (US)
NORDBY FRITZ (US)
DAY SHAWN P (US)
BOLENDER ROBERT J (US)
SCHWARTZ ADAM (US)
NORDBY FRITZ (US)
DAY SHAWN P (US)
Application Number:
PCT/US2011/034261
Publication Date:
April 05, 2012
Filing Date:
April 28, 2011
Export Citation:
Assignee:
SYNAPTICS INC (US)
SCHEDIWY RICHARD (US)
BOLENDER ROBERT J (US)
SCHWARTZ ADAM (US)
NORDBY FRITZ (US)
DAY SHAWN P (US)
SCHEDIWY RICHARD (US)
BOLENDER ROBERT J (US)
SCHWARTZ ADAM (US)
NORDBY FRITZ (US)
DAY SHAWN P (US)
International Classes:
G06F3/044; G06F3/041
Domestic Patent References:
| WO2009123388A1 | 2009-10-08 | |||
| WO2007098171A2 | 2007-08-30 | |||
| WO2005121729A1 | 2005-12-22 |
Foreign References:
| US20020019711A1 | 2002-02-14 |
Attorney, Agent or Firm:
PITTS, Jared et al. (P.C.7010 E. Cochise Roa, Scottsdale Arizona, US)
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