Data processing device comprising a touch screen and a force sensor
First Claim
1. A touch screen data processing device comprising:
- a touch screen having a first conductive panel, said first panel comprising a touch position sensor for detecting a touch position on said screen from a change in a current pattern in said first panel;
a second conductive panel parallel to said first panel and coextensive therewith, the second panel being spaced from the first panel in a direction transverse thereto, the second panel constituting portion of an image display;
resilient support means situated between the peripheries of said first and second panels for permitting partial movement of said screen toward said second panel, so that a touch force on said screen causes at least partial narrowing of the spacing between said screen and said second panel and a resulting change in electrical capacitance therebetween over an area substantially coextensive with said screen;
a touch force sensor comprising said second panel, for determining the value of a touch force on said screen by detection of the resulting change in capacitance between said screen and said second panel; and
means for performing combined processing of data produced by both the position sensor and the force sensor in response to a touch force on said screen.
1 Assignment
0 Petitions
Accused Products
Abstract
A data processing device comprises a touch screen with a touch position sensor. The position sensor is suitable to detect a touch position on the screen from a change in a current pattern in a conductive panel. The device also comprises a touch force sensor provided with a second conductive panel which extends substantially parallel to the touch screen. The screen is at least partly movable relative to the second panel in a direction transversely of the second panel. The force sensor is suitable to determine a force from a capacitance value between the touch screen and the second panel. The device is suitable for the combined processing of the position and force detected in response to touching.
440 Citations
13 Claims
-
1. A touch screen data processing device comprising:
-
a touch screen having a first conductive panel, said first panel comprising a touch position sensor for detecting a touch position on said screen from a change in a current pattern in said first panel; a second conductive panel parallel to said first panel and coextensive therewith, the second panel being spaced from the first panel in a direction transverse thereto, the second panel constituting portion of an image display; resilient support means situated between the peripheries of said first and second panels for permitting partial movement of said screen toward said second panel, so that a touch force on said screen causes at least partial narrowing of the spacing between said screen and said second panel and a resulting change in electrical capacitance therebetween over an area substantially coextensive with said screen; a touch force sensor comprising said second panel, for determining the value of a touch force on said screen by detection of the resulting change in capacitance between said screen and said second panel; and means for performing combined processing of data produced by both the position sensor and the force sensor in response to a touch force on said screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification