Multi-zone Touchscreen Orientation via Periphery Zone
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Solution Overview
Problem
Tablet information handling systems face difficulties in accurately detecting the vertical orientation when placed on a flat surface, leading to arbitrary and confusing image orientation changes, as the closer the device gets to a perpendicular orientation relative to gravity, the harder it is to detect the correct orientation.
Innovation Solution
A multi-zone touchscreen system that extends beyond the display perimeter to monitor touches for user input, allowing analysis of user grasp to determine the orientation of images presented, independent of the operating system, using a periphery zone for managing functions such as selecting display settings, power states, and image orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If accelerometer is used to detect vertical orientation, then orientation detection is provided, but detection precision deteriorates when device is placed on flat surface or接近 perpendicular to gravity
Solution Approach 1:
The patent introduces a periphery zone as an intermediary sensing area between the display and the user's hand. This periphery zone detects touch inputs that indicate user grasp orientation, serving as a mediator to determine image orientation when accelerometer detection fails on flat surfaces. The periphery zone acts as an additional sensing channel that complements the accelerometer.
Solution Approach 2:
The periphery zone serves multiple functions: it detects user grasp orientation for image orientation determination, provides touch input for managing display settings, power states, and other system functions. This multi-functional design eliminates the need for separate sensors for orientation detection and system control.
2Stability of the object's composition
If periphery zone is added for orientation detection, then orientation management stability is improved, but device complexity increases
Solution Approach 1:
The patent merges the orientation detection function with the existing touchscreen structure by extending the touch-sensitive periphery zone beyond the display boundaries. This integration allows the touchscreen to serve both as a display interface and an orientation sensing mechanism, avoiding the need for separate dedicated sensors.
Solution Approach 2:
The periphery zone is designed to handle multiple functions including orientation detection through grasp analysis, touch input for display settings, power management, and other system controls. This multi-functionality reduces overall system complexity by consolidating multiple sensor and control functions into a single integrated zone.
3Adaptability or versatility
If periphery zone is extended beyond display perimeter, then orientation detection capability is improved, but area of touchscreen increases
Solution Approach 1:
The periphery zone is positioned strategically around the display perimeter where it can detect user grasp orientation without significantly increasing the overall device footprint. The zone utilizes the existing touchscreen material extension beyond the display boundaries, concentrating the additional sensing functionality in a localized manner that minimizes area increase.
Data Source
AI summary
A tablet portable information handling system touch screen display includes a touch surface that extends past the periphery of a display surface to accept touch inputs used to establish an orientation of images presented at the display surface. For example, thumb and palm touches at the touch surface outside the periphery of the display are analyzed to determine the orientation of the tablet information handling system so that images presented at the display align with the determined orientation.