Apparatus and method for interactive display with tactile feedback

• US 8,115,745 B2
• Filed: 12/19/2008
• Issued: 02/14/2012
• Est. Priority Date: 06/19/2008
• Status: Active Grant

• Current Assignee: Tactile Displays, LLC
• Original Assignee: Tactile Displays, LLC
• Inventors: Gray, R. O'Neal
• Primary Examiner(s): Olson, Jason
• Application Number:
  US12/339,721
• Publication Number:
  US 20090315832A1
• Time in Patent Office: 1,152 Days
• Field of Search: None
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04809 Textured surface identifying touch areas, e.g. overlay structure for a virtual keyboard
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: H04M 1/72466 with selection means, e.g. keys, having functions defined by the mode or the status of the device
• CPC Class Codes: H04M 2250/22 including a touch pad, a touch sensor or a touch detector digitizers for touch screens G06F3/041

Abstract

An electronic device including an interactive display having an interactive mode and a non-interactive mode. The interactive display includes an image display device that displays a user-interactive imaged keypad in at least a portion of the image display device when the interactive display is in the interactive mode and that displays other image data in the at least a portion of the image display device when the interactive display is in the non-interactive mode, and a substantially transparent physical keypad that provides tactile feedback to a user indicating location of one or more imaged keys within the imaged keypad in response to one or more actuators disposed below the image display device.

Claims

1. An electronic device comprising:

an interactive display having an interactive mode and a non-interactive mode, the interactive display comprising;

touchscreen image display device that displays a user-interactive imaged keypad in at least a portion of the image display device when the interactive display is in the interactive mode and that displays other image data in the at least a portion of the image display device when the interactive display is in the non-interactive mode; and

a substantially transparent physical keypad that provides tactile feedback to a user indicating location of one or more imaged keys within the imaged keypad in response to one or more actuators disposed below the touchscreen image display device, the physical keypad comprising physical keys that extend through corresponding openings in the touchscreen image display device, one or more of the physical keys each comprising one or more magnetic elements, the one or more actuators moving at least one of the physical keypad and the touchscreen display device relative to one another so that the one or more physical keys protrude through the openings in the touchscreen display device when the interactive display is in the interactive mode, the touchscreen display device comprising one or more charged electrical circuit elements so that movement of the one or more physical keys comprising the one or more magnetic elements relative to the charged electrical circuit elements generates electricity.

2. The electronic device of claim 1, wherein the touchscreen image display device is structured so as to form a seal for the electronic device.

3. The electronic device of claim 1, wherein the physical keypad comprises one or more physical keys corresponding to the imaged keys.

4. The electronic device of claim 3, wherein the touchscreen image display device and the physical keypad are integral to one another.

5. The electronic device of claim 4, wherein the one or more physical keys are made of substantially transparent material so that the imaged keys may be viewed within the one or more physical keys.

6. The electronic device of claim 1, wherein the imaged keypad comprises one or more sub-keypads, each of the one or more sub-keypads being selectively activated.

7. The electronic device of claim 6, wherein one or more portions of the physical keypad are selectively activated to correspond to the one or more sub-keypads.

8. The electronic device of claim 1, wherein the physical keypad provides tactile feedback only when the interactive display is in the interactive mode.

9. The electronic device of claim 8, wherein the physical keypad comprises piezoelectric material.

10. The electronic device of claim 9, wherein the piezoelectric material is quartz.

11. The electronic device of claim 8, wherein the physical keypad is made of a magnetostrictive material.

12. The electronic device of claim 1, wherein the touchscreen image display device is selected from one of the following types of image display devices:

liquid crystal displays, digital light processor displays, plasma displays and light emitting diode displays.

13. The electronic device of claim 1, further comprising a protective layer disposed between the physical keypad and the one or more actuators to prevent damage to the one or more actuators resulting from contact with the physical keys.

14. The electronic device of claim 1, wherein the electronic device is selected from one of the following types of electronic devices:

cell phones, personal digital assistants, automatic teller machines and data input devices.