Touchscreen Cursor Offset Function for Precise Gloved Interaction
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Solution Overview
Problem
Touchscreen displays often obscure touch points, making precise interaction difficult, especially for users wearing gloves, which is a challenge in applications like military aviation where precise control is crucial.
Innovation Solution
A touchscreen display system that uses a controller to display a cursor with a selection point offset from the touch point, dynamically updating its angle based on a cursor display map that divides the screen into zones, allowing for precise interaction without obscuration by the input device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touchscreen display is used for interaction, then the interface is intuitive and direct, but the input device (finger or stylus) obscures the touch point, impairing precise selection
Solution Approach 1:
The patent introduces a cursor as an intermediary element between the touch input device and the display content. The cursor includes a selection point that is offset from the touch point, allowing the user to interact with content at the selection point location rather than directly under the input device. This mediator resolves the contradiction by decoupling the physical touch location from the logical selection location.
Solution Approach 2:
The patent adds an offset dimension to the cursor positioning. Instead of the selection point being directly at the touch point (zero offset), the selection point is positioned at a configurable offset distance and angle from the touch point. This dimensional change allows precise selection away from the obscured touch area.
2Object-affected harmful factors
If a user wears gloves for protection in military aviation applications, then hand safety is ensured, but the gloves further obscure the display and have broader touch points, reducing interaction precision
Solution Approach 1:
The cursor acts as a mediator that compensates for the reduced precision caused by gloved input. By offsetting the selection point from the touch point, the system allows users wearing gloves to select content at a location that is not obscured by their hand or glove, thereby maintaining interaction precision despite the protective gear.
Solution Approach 2:
The patent allows dynamic adjustment of the offset distance and angle parameters of the cursor. This enables the system to adapt to different input conditions, including when users are wearing gloves with broader touch points. The configurable parameters allow optimization of selection precision for various glove types and touch scenarios.
3Loss of time
If the cursor selection point is positioned at the touch point for direct feedback, then the response is immediate, but the selection point is obscured by the input device making precise interaction difficult
Solution Approach 1:
The offset cursor serves as a mediator that provides both immediate feedback and precise selection capability. The cursor responds immediately to touch input while positioning the selection point at an offset location that is not obscured by the input device, thus maintaining both fast response time and selection precision.
Data Source
AI summary
A touchscreen display device may include a touchscreen display and a controller. The controller may receive a display map of the touchscreen display dividing the touchscreen display into two or more display zones and defining offset angles for each of the two or more display zones. The controller may further detect a touch input at a touch point on the touchscreen display. The controller may further display a cursor comprising graphical objects on the touchscreen display to visualize a selection point separated from the touch point by an offset distance from the touch point and oriented at an offset angle defined by the cursor display map. The controller may further dynamically update the offset angle of the cursor based on the cursor display map when the touch point enters any of the two or more display zones.