TRANSDUCER MODULE

• US 20130033967A1
• Filed: 09/16/2011
• Published: 02/07/2013
• Est. Priority Date: 08/04/2011
• Status: Abandoned Application

• Current Assignee: Chief Land Electronic Co., Ltd.
• Original Assignee: Chief Land Electronic Co., Ltd.
• Inventors: Chuang, Tsi-Yu, Ching, Chia-Nan, Liu, Bao-Zheng
• Application Number:
  US13/235,240
• Publication Number:
  US 20130033967A1
• Time in Patent Office: Days
• US Class Current: 367/140
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: H10N 30/204 using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
• CPC Class Codes: H10N 30/206 using only longitudinal or thickness displacement, e.g. d33 or d31 type devices
• CPC Class Codes: H10N 35/00 Magnetostrictive devices integrated devices or assemblies of multiple devices H10N39/00

Abstract

The present invention is directed to a transducer module including a first transducer and a second transducer. The second transducer is disposed between the first transducer and a first plate.

Claims

1. A transducer module, comprising:

a first transducer; and

a second transducer disposed between a first plate and the first transducer.

2. The transducer module of claim 1, wherein the second transducer is disposed on the first plate with an embedded scheme.

3. The transducer module of claim 1, wherein the second transducer is disposed on the first transducer with an embedded scheme.

4. The transducer module of claim 1, wherein the first transducer has a planar shape.

5. The transducer module of claim 1, wherein the first transducer has a curved shape.

6. The transducer module of claim 1, further comprising a block member disposed between the first transducer and a second plate.

7. The transducer module of claim 6, further comprising a third transducer disposed between the first transducer and the second plate.

8. The transducer module of claim 6, wherein the first plate or the second plate is a screen, a touch sensitive plate, a frame, a substrate or a housing.

9. The transducer module of claim 7, wherein the first transducer, the second transducer or the third transducer is made of piezoelectric material, electro-active polymer (EAP) or shape memory alloy (SMA), magnetostrictive material, a voice coil motor, an eccentric rotating mass (ERM) motor or a linear resonant actuator (LRA).

10. The transducer module of claim 9, wherein the piezoelectric material is lead-zirconate-titanate (PZT).

11. The transducer module of claim 7, wherein the first transducer, the second transducer or the third transducer comprises:

a conductive layer;

at least one first smart material layer, formed on a top surface of the conductive layer; and

at least one first electrode layer, formed on a top surface of the first smart material layer.

12. The transducer module of claim 11, wherein the conductive layer is a metal plate.

13. The transducer module of claim 1, wherein the first transducer has a rectangular, circular, cross or tri-fork star shape.

14. The transducer module of claim 13, wherein the cross-shape first transducer comprises a cross-shape conductive layer and two first smart material layers that are disposed in cruciform on a top surface of the cross-shape conductive layer, wherein the two first smart material layers are insulated from each other by an insulator.

15. The transducer module of claim 11, wherein the first transducer, the second transducer or the third transducer further comprises:

at least one second smart material layer, formed on a bottom surface of the conductive layer; and

at least one second electrode layer, formed on a bottom surface of the second smart material layer.