Rear piezoelectric operation input device and front information display device
First Claim
1. An input device connectable to an information display device having a first surface with a display unit, the input device comprising:
- a housing with a base portion;
a planar piezoelectric element attached to at least a center region of the base portion and having a piezoelectric film including opposing first and second surfaces, a first electrode disposed on the first surface and a second electrode disposed on the second surface, the piezoelectric element generating a detection signal corresponding to a position of a pressing input; and
a controller coupled to the planar piezoelectric element and configured to generate operation input information based on the detection signal,wherein the planar piezoelectric element has a flat film shape and is parallel to a primary surface of the base portion, such that the planar piezoelectric element is arranged adjacent to a second surface of the information display device opposite the first surface when the information display device is connected to the input device,wherein the input device is structurally configured such that a gap is formed between the information display device and at least the planar piezoelectric element when the information display device is connected to the input device, such that the base portion can be deformed by the gap towards the information display device, andwherein the center region includes a flexible region that has a length longer than a length of the piezoelectric element and that has a higher elasticity than an elasticity of the base portion other than the flexible region.
1 Assignment
0 Petitions
Accused Products
Abstract
An operation input device has a housing including a concave portion in which an information display device is accommodated. A piezoelectric element of a flat film shape and a control IC connected to the piezoelectric element are built in a base portion of the housing. The control IC is connected to a device IC of the information display device. When a user'"'"'s finger touches an attachment region of the piezoelectric element in the base portion of the housing, a detection signal corresponding to the touch position and a pressing amount is outputted from the piezoelectric element. The control IC generates operation information based on the detection signal, and outputs the operation information to the device IC of the information display device. The device IC shows display corresponding to the operation information.
43 Citations
17 Claims
-
1. An input device connectable to an information display device having a first surface with a display unit, the input device comprising:
-
a housing with a base portion; a planar piezoelectric element attached to at least a center region of the base portion and having a piezoelectric film including opposing first and second surfaces, a first electrode disposed on the first surface and a second electrode disposed on the second surface, the piezoelectric element generating a detection signal corresponding to a position of a pressing input; and a controller coupled to the planar piezoelectric element and configured to generate operation input information based on the detection signal, wherein the planar piezoelectric element has a flat film shape and is parallel to a primary surface of the base portion, such that the planar piezoelectric element is arranged adjacent to a second surface of the information display device opposite the first surface when the information display device is connected to the input device, wherein the input device is structurally configured such that a gap is formed between the information display device and at least the planar piezoelectric element when the information display device is connected to the input device, such that the base portion can be deformed by the gap towards the information display device, and wherein the center region includes a flexible region that has a length longer than a length of the piezoelectric element and that has a higher elasticity than an elasticity of the base portion other than the flexible region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An information display system comprising:
-
an information display device having a first surface being a touch panel with a display unit and a display control unit; and an input device connectable to the information display device, the input device comprising; a housing with a base portion; a planar piezoelectric element attached to at least a center region of the base portion and having a piezoelectric film including opposing first and second surfaces, a first electrode disposed on the first surface and a second electrode disposed on the second surface, the planar piezoelectric element generating a detection signal corresponding to a position of a pressing input; and a controller coupled to the piezoelectric element and configured to generate operation input information based on the detection signal, wherein the planar piezoelectric element has a flat film shape and is parallel to a primary surface of the base portion, such that the planar piezoelectric element is arranged adjacent to a second surface of the information display device opposite the first surface when the information display device is connected to the input device, wherein the input device is structurally configured such that a gap is formed between the information display device and at least the planar piezoelectric element when the information display device is connected to the input device, such that the base portion can be deformed by the gap towards the information display device, and wherein the display control unit displays on the display unit a mark indicating an operation position based on the operation input information, and wherein the center region includes a flexible region that has a length longer than a length of the piezoelectric element and that has a higher elasticity than an elasticity of the base portion other than the flexible region. - View Dependent Claims (12, 13, 14, 15)
-
-
16. An operation input device comprising:
-
a base including a planar piezoelectric element with a flat piezoelectric film parallel to a primary surface of the base and including opposing first and second surfaces, a first electrode disposed on the first surface and a second electrode disposed on the second surface, the planar piezoelectric element generating a detection signal corresponding to a position of a pressing input, wherein a center region of the base includes a flexible region that has a length longer than a length of the planar piezoelectric element and that has a higher elasticity than an elasticity of the base other than the flexible region; a side portion extending orthogonally from the base and disposed along an outer periphery of the base; and a controller communicatively coupled to the piezoelectric element and configured to generate operation input information based on the detection signal, wherein the input device is structurally configured such that a gap is formed between an information display device and at least the planar piezoelectric element when the information display device is connected to the input device, such that the base can be deformed by the gap towards the information display device. - View Dependent Claims (17)
-
Specification