Touch-sensitive input screen having regional sensitivity and resolution properties
First Claim
1. A touch-sensitive screen for providing data input to a data processing system, said touch-sensitive screen comprising:
- a major screen region;
at least one contiguous, non-overlapping minor screen region, said minor screen region having different touch and different force detection resolution properties than said major screen region, each screen region responsive to a touch input of a finger or stylus in that region; and
a matrix of touch sensing elements which are periodically scanned both horizontally and vertically in order to detect changing x and y positions of a touch input, and wherein the resolution is varied between screen regions by varying the percentage of sensing elements scanned during a single scanning operation in response to a determination of in which region the touch input has occurred.
2 Assignments
0 Petitions
Accused Products
Abstract
A touch screen panel having varied region-specific combinations of resolution and touch sensitivity may also incorporate display functionality. For a first embodiment of the invention, the majority of the screen area exhibits low resolution, high touch force characteristics. A smaller area of the screen exhibits low touch force and high resolution properties. For a second embodiment of the invention, at least a portion of the peripheral regions (i.e., regions near the circumferential edge) of the screen are provided with regions of low touch force high resolution properties. These regions may be programmed to act as scroll bars, which would allow the user to change locations in a document of which only a portion is displayed on the screen. In the central regions of the screen, higher touch force and lower resolution provide palm rejection and coarse marking or movement capability with low bandwidth utilization. Either the varied screen properties may be incorporated into the screen during its manufacture, or the screen may be designed so that different resolution and touch sensitivity properties can be assigned to different regions of the screen to suit the user'"'"'s needs.
-
Citations
23 Claims
-
1. A touch-sensitive screen for providing data input to a data processing system, said touch-sensitive screen comprising:
-
a major screen region;
at least one contiguous, non-overlapping minor screen region, said minor screen region having different touch and different force detection resolution properties than said major screen region, each screen region responsive to a touch input of a finger or stylus in that region; and
a matrix of touch sensing elements which are periodically scanned both horizontally and vertically in order to detect changing x and y positions of a touch input, and wherein the resolution is varied between screen regions by varying the percentage of sensing elements scanned during a single scanning operation in response to a determination of in which region the touch input has occurred. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A touch-sensitive display screen for providing data input to a data processing system, said screen comprising:
-
a major screen region and at least one minor screen region, said minor screen region having different resolution and touch force detection properties than said major screen region;
a matrix of touch sensing elements which are periodically scanned both horizontally and vertically in order to detect changing x and y positions of a touch input; and
wherein resolution is varied between regions by varying the percentage of sensing elements scanned during a single scanning operation in response to a determination of in which region the touch input has occurred. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
-
Specification