Display system with tactile guidance

• US 20050030292A1
• Filed: 11/20/2002
• Published: 02/10/2005
• Est. Priority Date: 12/12/2001
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Diederiks, Elmo Marcus Attila
• Application Number:
  US10/498,134
• Publication Number:
  US 20050030292A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/014 Force feedback applied to GUI
• CPC Class Codes: G06F 2203/04809 Textured surface identifying touch areas, e.g. overlay structure for a virtual keyboard
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• 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: G09B 21/003 using tactile presentation of the information, e.g. Braille displays

Abstract

The invention relates to a display system which comprises a display screen (101) for displaying a graphical representation. The surface of the display screen has relief (103, 104) in order to provide tactile and/or visual guidance to the user. The display system according to the invention comprises a relief generator for dynamically generating the relief (103, 104) on the display screen. It is thus achieved that the relief can be changed dynamically in accordance with the graphical output of the current application.

Claims

1. A display system (100) comprising a display screen (101) for displaying a graphical representation, the display screen providing tactile and/or visual guidance to the user by means of relief, wherein the display system comprises a relief generator (202, 302) for dynamically generating the relief on the display screen.

2. A display system as claimed in claim 1, wherein the relief generator (202, 302) comprises piezo electrical material to provide said relief in response to electrical signals.

3. A display system as claimed in claim 1, further arranged to detect user actuations from electrical signals received from the relief generator (202, 302).

4. A display system as claimed in claim 1, wherein the relief generator (202, 302) is arranged to produce protrusions (103) or depressions (104′

) at selected locations of the display screen.

5. A display system as claimed in claim 1, wherein the relief generator (202, 302) comprises individually addressable relief elements (202) each of which is arranged to cause a displacement in a direction substantially perpendicular to the display screen.

6. A display system as claimed in claim 1, wherein the relief generator comprises transparent material (202) and is located at the front of the display screen (101).

7. A display system as claimed in claim 1, wherein the relief generator (302) is located at the rear of the display screen (101), the display screen (301) being a flexible display capable of following the relief provided by the relief generator.

8. A display system as claimed in claim 1, wherein the relief generator (202, 302) is capable of automatically determining a relief for predetermined graphical objects, such as buttons and sliders.

9. A display system as claimed in claim 1, wherein the relief generator is arranged to dynamically generate changes (104′

) in the relief in response to user actuations, so as to provide tactile feedback.

10. A data processing system (100) comprising a display system as claimed in claim 1.