Hinged Display Misalignment Compensation via Software Shift
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Solution Overview
Problem
Information handling systems with adjacent hinged displays often experience misalignment issues due to manufacturing tolerances and wear, leading to visual displeasure and pixel misalignment, especially as the gap between displays narrows or resolution increases.
Innovation Solution
A system that generates screen shots of the displays, compares them to a reference image to detect misalignment, and implements software compensation by shifting images vertically, horizontally, or rotationally using predetermined corrections stored in a database, potentially aided by reserve pixels for alignment correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manufacturing tolerances are reduced to improve display alignment, then manufacturing precision improves, but manufacturing cost and complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing compensation values in a lookup table during manufacturing. The system captures images of alignment markers, determines misalignment amounts, and stores correction values before the device reaches the customer. This eliminates the need for complex real-time alignment mechanisms while achieving precise display alignment through software compensation.
Solution Approach 2:
The patent replaces mechanical alignment adjustment mechanisms with a software-based compensation system. Instead of using complex mechanical structures to physically adjust display positions, the system uses image processing to detect misalignment and applies digital transformations (translation, rotation, scaling) to compensate for the misalignment, thereby reducing manufacturing complexity.
2Measurement precision
If software compensation is applied to correct misalignment, then display alignment accuracy improves, but processing time increases
Solution Approach 1:
The patent uses preliminary action by pre-calculating compensation values and storing them in a lookup table during the manufacturing or initial setup phase. When the device operates, the system only needs to query the pre-computed lookup table based on detected misalignment, rather than performing complex real-time calculations. This significantly reduces processing time during normal operation while maintaining high alignment accuracy.
Solution Approach 2:
The patent creates a digital model (lookup table) that copies and stores the relationship between misalignment amounts and compensation values. Instead of recalculating compensation for every display state, the system references pre-computed values from this digital copy, thereby achieving fast alignment correction with minimal processing time.
3Shape
If the gap between displays is narrowed to improve visual appearance, then aesthetic quality improves, but alignment sensitivity increases
Solution Approach 1:
The patent replaces mechanical precision requirements with software-based compensation. By using image processing to detect alignment markers and applying digital transformations to compensate for misalignment, the system can achieve accurate display alignment even with narrow gaps between displays. This software approach eliminates the need for extremely tight mechanical tolerances that would be required for narrow-gap designs.
Solution Approach 2:
The patent changes the approach from controlling physical parameters (gap width, mechanical positioning) to controlling digital parameters (image transformation parameters such as translation distance, rotation angle, scaling factor). This allows the system to achieve precise alignment视觉效果 even when physical manufacturing variations occur, thereby enabling narrower display gaps without proportionally increasing alignment sensitivity.
Data Source
AI summary
An information handling system includes adjacent displays connected by a hinge. A processor renders a first image on the first display, renders a second image on the second display, and receives data representing a misalignment between the first display and the second display. The data is implemented to compensate for the misalignment between the first display and the second display.