Dual Display Object Detection and Hinge Braking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dual display portable information handling systems face damage risks due to torsional forces during housing closure, especially when objects like keyboards or styluses are left between the displays, causing hinge failure and display cracking.
Innovation Solution
A system that monitors the display surface for objects using sensors like Hall sensors and touch active pen sensors, and rotation sensors to detect angular velocity and position, initiating alerts and altering hinge operation to prevent closure over objects, thus preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If objects like keyboards or styluses are left between the displays during housing closure, then the system maintains operational flexibility and ease of use, but the displays and hinges are at risk of damage due to torsional forces
Solution Approach 1:
The system performs preliminary detection of objects between the displays using sensors (Hall effect sensors, touch active pen sensors, rotation sensors) before the housing closure completes. When an object is detected, the system initiates corrective actions such as sounding alerts, providing haptic feedback, and adjusting hinge operation to prevent damage, thereby protecting the display and hinge while maintaining ease of operation.
2Reliability
If the system uses sensors and corrective actions to detect and prevent object-related damage, then the reliability and protection of displays are improved, but the device complexity increases
Solution Approach 1:
The patent employs multi-functional sensors that serve multiple purposes: Hall effect sensors detect magnetic fields from keyboards, touch active pen sensors detect stylus presence, and rotation sensors monitor housing closure motion. These sensors collectively provide object detection, closure monitoring, and protective control functions, reducing the need for separate dedicated components and thereby managing device complexity while improving reliability.
3Reliability
If the hinge operation is adjusted to prevent closure over objects, then the protection of displays is improved, but the productivity and speed of housing closure is reduced
Solution Approach 1:
The system applies preliminary anti-action by detecting objects before the housing closure completes and initiating corrective actions such as sounding alerts and adjusting hinge operation. This prevents damage while allowing the housing to close normally when no objects are present, thereby minimizing the impact on closure speed and productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively warns users of potential damage and takes corrective action to prevent stress on the housing and displays by sounding alerts, providing haptic feedback, and adjusting hinge operation, thereby reducing the risk of damage during housing closure.
Implementation Method 1
A system that monitors the display surface for objects using sensors like Hall sensors
Implementation Method 2
touch active pen sensors
Implementation Method 3
rotation sensors to detect angular velocity and position
Data Source
AI summary
A portable information handling system having a display on each of opposing rotationally coupled housing portions monitors for objects disposed on a display and takes corrective action if the housing portions rotate to a closed position that impacts the object on an opposing display. For instance, a keyboard or stylus placed on one display is detected by the touchscreen, by Hall sensors, by IR sensors and or other sensors. The rotational position and angular velocity of the housing portions are tracked and analyzed to take corrective action if the housing portions will reach a closed position in less than a predetermined time. The corrective action may include visual and audible warnings and/or braking at a hinge that works against hinge rotation to slow or stop impact by the object and display.