Touch-Sensitive Bezel Techniques for Accidental Touch Detection
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Solution Overview
Problem
Conventional mobile computing devices often perform undesired actions due to their inability to distinguish between intentional and accidental touches, leading to user frustration and the need for wider bezels that hinder device design and mobility.
Innovation Solution
Incorporating touch sensors in both the bezel and display portions of a display device to detect touch inputs and determine the likelihood of user intention, allowing the device to differentiate between accidental and intentional touches, and activating bezel display capabilities to display menus without reducing usable screen space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wide bezels are used to prevent accidental touches, then accidental touches are reduced, but display area is decreased
Solution Approach 1:
The touch-sensitive surface is segmented into multiple regions including the display portion and the bezel portion, each capable of independent touch detection. This segmentation allows the system to distinguish between intentional touches on the display and accidental touches on the bezel, resolving the contradiction by enabling accurate touch detection without requiring wide non-functional bezels.
Solution Approach 2:
Different regions of the device have different functions: the display portion is optimized for visual output and intentional interaction, while the bezel portion serves as a protective border that can also detect accidental touches. By assigning different roles to different regions, the system maintains display area while improving touch detection accuracy through localized functionality.
2Reliability
If bezel width is increased to prevent accidental touches, then device mobility is reduced, but touch accuracy is improved
Solution Approach 1:
The system dynamically adjusts its response to touch inputs based on the location and characteristics of the touch. Rather than relying on static wide bezels, the system uses real-time analysis of touch parameters (pressure, duration, location) to distinguish between intentional and accidental touches, enabling accurate touch detection with narrower bezels and maintaining device mobility.
3Reliability
If touch sensors are added to the bezel portion, then accidental touches can be distinguished, but device complexity increases
Solution Approach 1:
The touch sensor system serves multiple functions: it detects intentional touches on the display, detects accidental touches on the bezel, and provides the data needed for the system to distinguish between the two. By making the sensor system multi-functional, the patent avoids adding separate specialized sensors for bezel detection, thereby reducing overall system complexity while improving user intention detection.
Data Source
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AI summary
Touch-sensitive bezel techniques are described. In one or more implementations, touch sensors located in a display portion and a bezel portion detect a touch input and determine, based on one or more characteristics of the touch input, a likelihood that a user intends or does not intend to interact with the computing device. A location of a centroid of an area of the touch input is on such characteristic that can be utilized. In at least some implementations, the bezel portion has display capabilities such that when a touch input is detected, the display capabilities in a region of the bezel portion can be made active to cause a menu to be displayed in the region of the bezel.