Tactile Touch Screen
First Claim
1. A touchscreen comprising a display comprising:
- a touch sensitive screen surface,at least a portion of said touch sensitive screen surface having at least one of user perceived surface roughness and friction coefficient, wherein said at least one of user perceived surface roughness and friction coefficient is variable and controllable.
1 Assignment
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Accused Products
Abstract
A touchscreen including a touch sensitive layer wherein the user perceived surface roughness or friction coefficient is variable and dynamically controlled. The level of user perceived surface roughness or friction coefficient is related to the information that is displayed at the position at which an object touches the touch sensitive layer. The surface roughness is not locally changed but rather for a complete portion of the touchscreen or for the whole touchscreen simultaneously. Because the modulation of user experience surface roughness or friction coefficient is faster than the user interaction, the user will experience that the surface roughness of certain areas of the display is different from other areas, depending on the information that is being shown, although in fact the surface roughness or friction coefficient is uniform over the whole portion or the whole display at any given point of time.
90 Citations
50 Claims
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1. A touchscreen comprising a display comprising:
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a touch sensitive screen surface, at least a portion of said touch sensitive screen surface having at least one of user perceived surface roughness and friction coefficient, wherein said at least one of user perceived surface roughness and friction coefficient is variable and controllable. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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2-31. -31. (canceled)
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46. An electronic device comprising:
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a processor, a touch sensitive screen with a touch sensitive screen surface, at least a portion of said touch sensitive screen surface having at least one of user perceived surface roughness and friction coefficient, wherein said at least one of user perceived surface roughness and friction coefficient is variable and controllable said touchscreen being coupled to said processor, and said at least one of user perceived surface roughness and friction coefficient being controlled by said processor. - View Dependent Claims (47, 48)
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49. A method of operating a touchscreen of an electronic device, said touchscreen being provided with touch sensitive surface and at least a portion of said touch sensitive surface having at least one of user perceived roughness and friction coefficient, comprising:
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displaying information on said touchscreen, and dynamically controlling said at least one of user perceived surface roughness and friction coefficient of the whole of said portion in relation to the information displayed at the position where an object touches said touch sensitive surface.
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50. A software product for use in a mobile electronic device that is provided with a touchscreen with a variable and controllable at least one of user perceived surface roughness and friction coefficient, said software product comprising:
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software code for displaying information on said touchscreen, and software code for dynamically controlling said at least one user perceived surface roughness and friction coefficient of the whole of said portion in relation to the information displayed at the position where an object touches said touch sensitive surface.
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Specification