Pressure detection module and touch input device including the same
First Claim
Patent Images
1. A touch input device comprising:
- a cover layer;
a touch sensor panel which is located under the cover layer for detecting a touch as input to the touch input device and comprises a touch drive electrode and a touch receive electrode;
a display module;
a pressure detection module which is located under the display module for detecting a pressure of the touch to the display module and is located under the touch sensor panel, wherein the pressure detection module being apart from the touch sensor panel; and
a substrate which is located under the pressure detection module, such that the pressure detection module is attached either to the display module or to the substrate; and
a supporting member,wherein the pressure detection module includes;
a first insulation layer;
a second insulation layer disposed under the first insulation layer;
a pressure electrode which is located between the first insulation layer and the second insulation layer; and
an elastic foam which is disposed between the second insulation layer and the substrate,wherein a capacitance between the pressure electrode and the substrate is changed according to a relative distance change between the substrate and the pressure electrode through a transformation of the elastic foam, wherein a magnitude of the pressure of the touch which causes the elastic foam to be transformed is detected according to the capacitance change,wherein a position of the touch is detected according to a capacitance change between the touch drive electrode and the touch receive electrode,wherein the supporting member is disposed on an outside of the elastic foam of the pressure detection module,wherein the supporting member is not disposed on an overall portion of the substrate, andwherein the elastic foam is transformed by bending the display module.
1 Assignment
0 Petitions
Accused Products
Abstract
A pressure detection module may be provided that includes: a first electrode and a second electrode which are located on an insulation layer; and an elastic foam. The elastic foam is located between the first and the second electrodes and a reference potential layer located apart from the pressure detection module. A capacitance between the first electrode and the second electrode is changed according to a relative distance change between the reference potential layer and the first and the second electrodes through a transformation of the elastic foam. A magnitude of a pressure which causes the elastic foam to be transformed is detected according to the capacitance change.
20 Citations
12 Claims
-
1. A touch input device comprising:
-
a cover layer; a touch sensor panel which is located under the cover layer for detecting a touch as input to the touch input device and comprises a touch drive electrode and a touch receive electrode; a display module; a pressure detection module which is located under the display module for detecting a pressure of the touch to the display module and is located under the touch sensor panel, wherein the pressure detection module being apart from the touch sensor panel; and a substrate which is located under the pressure detection module, such that the pressure detection module is attached either to the display module or to the substrate; and a supporting member, wherein the pressure detection module includes; a first insulation layer; a second insulation layer disposed under the first insulation layer; a pressure electrode which is located between the first insulation layer and the second insulation layer; and an elastic foam which is disposed between the second insulation layer and the substrate, wherein a capacitance between the pressure electrode and the substrate is changed according to a relative distance change between the substrate and the pressure electrode through a transformation of the elastic foam, wherein a magnitude of the pressure of the touch which causes the elastic foam to be transformed is detected according to the capacitance change, wherein a position of the touch is detected according to a capacitance change between the touch drive electrode and the touch receive electrode, wherein the supporting member is disposed on an outside of the elastic foam of the pressure detection module, wherein the supporting member is not disposed on an overall portion of the substrate, and wherein the elastic foam is transformed by bending the display module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification