Stack Display List Selection for Vehicle Infotainment
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Solution Overview
Problem
Modern vehicles require efficient methods to display and manage increasing amounts of information, particularly operation-related data, while ensuring intuitive and quick access to functions within limited display surfaces, without distracting the driver.
Innovation Solution
A method and device utilizing a stack display of graphical objects on a touch-sensitive surface, where a selection operation automatically initiates the function of a graphical object by moving the top object off-screen, allowing easy switching between objects and distinguishing between selection and scrolling operations through gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a complete list of graphical objects is displayed on the display surface, then all functions are visible, but the display surface area required increases significantly
Solution Approach 1:
The list of graphical objects is segmented into a visible subset displayed on the display surface and hidden objects stored in memory. The control device manages this segmentation by displaying only the necessary subset at any given time, allowing all functions to be accessible without requiring simultaneous display of all objects.
Solution Approach 2:
The patent introduces a temporal dimension to the display by implementing scrolling and selection operations over time. Instead of displaying all objects simultaneously in space, the system transitions between different subsets of objects across time steps, enabling access to the complete list through sequential display rather than simultaneous spatial arrangement.
2Adaptability or versatility
If more graphical objects are displayed simultaneously, then more functions are accessible, but the complexity of the display and operation increases
Solution Approach 1:
The display is made dynamic through scrolling operations that allow the subset of visible graphical objects to change over time. The control device responds to scrolling commands by updating the displayed subset, enabling users to navigate through the complete list sequentially rather than presenting all objects statically at once, thereby reducing initial display complexity while maintaining full accessibility.
3Loss of information
If the top graphical object remains visible during selection, then the user can see current position, but the selection operation becomes less intuitive
Solution Approach 1:
Instead of keeping the top object visible and having the user search for the target object among visible ones, the patent inverts the approach by having the target object move to the top position and become fully visible. This inversion makes the selection operation more intuitive because the system actively brings the selected object into full view rather than requiring the user to locate it among partially visible objects.
Data Source
AI summary
A method for selecting an object from a list. A portion of a list is displayed using graphical objects on a display surface and functions are assigned to each graphical object. The list is displayed as a stack in which a first graphical object is completely visible at the top of the stack, and other graphical objects are only partly visible perspectively behind the first graphical object, wherein one of the other graphical objects is selected by a selection operating process. The first graphical object displayed at the top of the stack disappears when a selection operating process has been detected such that one of the other graphical objects is displayed at the top of the stack after the first graphical object has disappeared, and the second graphical object is automatically selected so that the function assigned to the second graphical object is carried out.