TOUCH-DETECTION SYSTEM FOR DISPLAY
First Claim
Patent Images
1. An arrangement for detecting contact on a display, the arrangement comprising:
- a screen panel,an electrode forming part of a capacitor, anda support carrying the screen panel such that it is moved by a compression force exerted by contact with the screen panel, the electrode being coupled with the screen panel, the capacitor having a capacitance that changes when the support is subjected to a load.
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Abstract
A display screen is carried on a base by an elastically deformable support such that a touch shifts the screen relative to the base. A pair of juxtaposed electrodes form a capacitor, with one of the electrodes fixed to the screen and the other of the electrodes fixed to or formed by the base. A capacitance of the capacitor changes when the screen electrode moves relative to the base electrode. A circuit connected to the electrodes initiates an action on change of the capacitance.
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Citations
12 Claims
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1. An arrangement for detecting contact on a display, the arrangement comprising:
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a screen panel, an electrode forming part of a capacitor, and a support carrying the screen panel such that it is moved by a compression force exerted by contact with the screen panel, the electrode being coupled with the screen panel, the capacitor having a capacitance that changes when the support is subjected to a load. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In combination:
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a base; a display screen; an elastically deformable support carrying the screen on the screen, whereby a touch shifts the screen relative to the base; a pair of juxtaposed electrodes forming a capacitor, one of the electrodes being fixed to the screen and the other of the electrodes being fixed to or formed by the base, a capacitance of the capacitor changing when the screen electrode moves relative to the base electrode; and circuit means connected to the electrodes for initiating an action on change of the capacitance. - View Dependent Claims (9, 10, 11, 12)
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Specification