Touch Interface Scrolling and Mode Switching via Perpendicular Directions
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Solution Overview
Problem
Current touch interfaces, such as touchpads and touchscreens, face difficulties in easily and reliably controlling the display of elements on a screen, particularly when additional peripheral equipment like buttons is not used, limiting the actions that can be performed.
Innovation Solution
A method that allows controlling the display of elements on a screen using a touch interface alone, with distinct scrolling and triggering directions, enabling multiple display modes without the need for additional buttons, where the second display mode provides additional information and user interface elements, and scrolling speed is adjustable based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a touch interface is used to control display elements, then the device complexity is reduced by eliminating additional buttons, but the ease of operation deteriorates because controlling display modes becomes difficult
Solution Approach 1:
The patent introduces a second direction of movement perpendicular to the scrolling direction to trigger display mode changes. This dimensional addition allows the touch interface to distinguish between scrolling actions (first direction) and mode switching actions (second direction), resolving the operational ambiguity while maintaining interface simplicity
Solution Approach 2:
The touch interface controls are segmented into distinct directional movements: one direction for scrolling through list elements and another perpendicular direction for triggering display mode changes. This segmentation allows independent control of navigation and mode switching without requiring additional physical buttons
2Loss of information
If additional information is displayed for list elements, then the loss of information is reduced, but the area occupied increases reducing the number of visible elements
Solution Approach 1:
The display dynamically adjusts the amount of information shown for list elements based on the triggered display mode. In the first mode, minimal information is displayed to maximize element visibility, while in the second mode, additional information appears for selected elements, optimizing the balance between information density and element count
Data Source
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Figure 3A~3B
AI summary
The method involves projecting elements of a list (50) in a display mode on a display device i.e. TV screen (2), in response to the movement exerted on a capacitive type tactile interface (10) in a predetermined projecting direction (D1). The display of the list is triggered from the display mode according to another display mode. The information displayed in the former mode and additional information are displayed in the latter mode, for one element of the list in response to the movement exerted on the interface in triggering direction (D2) different from the projecting direction. Independent claims are also included for the following: (1) a computer program comprising a set of instructions to perform a display control method (2) a readable-recording medium comprising a set of instructions to perform a display control method (3) a device for controlling display of a set of elements on a display device.