Automated Display Orientation Detection and Keystone Correction
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Solution Overview
Problem
Information handling system displays often present visual information in orientations that differ from the expected initial orientation, causing difficulties for end users, particularly when displays are inverted, as in the case of projectors hung from ceilings, leading to upside-down image presentation that is hard to navigate.
Innovation Solution
A system and method that automatically detect the display orientation using sensors like accelerometers or mechanical pressure sensors to adjust the image presentation, ensuring it remains upright regardless of the display's orientation, with keystone correction for various angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is installed in different orientations (e.g., ceiling-mounted inverted), then the display can be positioned in various locations, but the image becomes inverted and difficult to navigate
Solution Approach 1:
The system performs preliminary action by automatically detecting the display orientation before the user needs to navigate the image. The accelerometer senses the gravitational vector to determine display orientation, and the image processing system pre-adjusts the image orientation accordingly, so the image is always presented upright regardless of display installation position.
Solution Approach 2:
The display system serves itself by automatically detecting its own orientation through the accelerometer and self-correcting the image presentation. The system monitors its installation orientation and autonomously adjusts the image without requiring user intervention, making the system self-configuring and self-adapting to different mounting positions.
2Ease of operation
If manual image inversion is provided through service menu, then users can adjust image orientation, but the setup becomes complex and user-friendly interface is lost
Solution Approach 1:
The system eliminates the need for manual user configuration by implementing self-service automation. The accelerometer-based orientation detection and automatic image adjustment work without user intervention, removing complex service menus and manual setup steps while maintaining full functionality.
Solution Approach 2:
The patent replaces the manual mechanical interaction (user pressing buttons, navigating menus) with an automated sensing and processing system. The accelerometer mechanically senses orientation, and the image processing system automatically applies corrections, substituting user manual operations with automated electronic control.
3Extent of automation
If automated orientation detection is implemented, then setup is simplified, but additional sensors and processing are required
Solution Approach 1:
The patent replaces complex software-based orientation detection with a simple mechanical accelerometer sensor that directly senses gravitational pull. This mechanical sensing approach is more reliable and requires less processing complexity compared to software-only solutions, achieving automation with minimal added hardware.
Solution Approach 2:
The accelerometer serves multiple functions: it detects display orientation for image correction, and can potentially be used for other motion-sensing applications. This multi-functionality justifies the added component by providing orientation detection capability that benefits the primary function while having potential additional uses.
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
This solution simplifies the setup and use of information handling systems by eliminating the need for manual adjustments, providing reliable and flexible automated image orientation detection and correction, enhancing the user experience by maintaining an upright image view across different display orientations.
Implementation Method 1
the display orientation sensor is an accelerometer that senses the vector of gravitational pull and determines the display orientation by analysis of the offset between a predetermined vector and the sensed gravitational vector
Data Source
AI summary
Automated orientation of an image presented by a display, such as a projector, with the orientation of the display simplifies presentation of images generated by an information handling system. A display orientation sensor detects the orientation of a display so that a display orientation module automatically adjusts the orientation of an image presented by the display to align with the display orientation. For example, display orientation is sensed by an accelerometer associated with the display or by determining the attachment point of the display to a support.