US 2022/0026289 A1 · PROJECTIVE CAPACITIVE FORCE SENSING STRUCTURE

Abstract

A projective capacitive force sensing structure is provided. The projective capacitive force sensing structure includes a first substrate, a first electrode, a first capacitance material layer, a second substrate, a second electrode and a third electrode. The stacking order of the projective capacitive force sensing structure is from the first substrate to the second substrate. The second electrode and the third are respectively below and above the second substrate. A first signal is detected between the first electrode and the second electrode and is collected by the first electrode. A second signal is detected between the second electrode and the third electrode and is collected by the third electrode. A force applied by an object is determined according to the first signal and a location of the object is determined according to the second signal. Both the force applied by an object and the location of the object are acquired.

Claims14

Dependent claims

A projective capacitive force sensing structure comprising:

a first substrate;
a first electrode disposed on the first substrate;
a first capacitance material layer disposed on the first electrode;
a second substrate disposed above the first substrate and provided with a first surface and a second surface opposite to the first surface, the first surface facing the first substrate;
a second electrode disposed on the first surface, the second electrode overlapping the first electrode, a first signal detected between the first electrode and the second electrode being collected by the first electrode;
and
a third electrode disposed on the first surface or the second surface, a second signal detected between the second electrode and the third electrode being collected by the third electrode;
wherein a force applied by an object is determined according to the first signal and a location of the object is determined according to the second signal.

5 more elements

Dependencies are inferred from the claim text.

Projective capacitive force sensing structure

Life of this patent

Projective capacitive force sensing structure

Life of this patent

Abstract

Claims14