Optical Feedback Display Calibration for Multi-Display Quality
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Solution Overview
Problem
Current display systems, particularly multiple-projector setups, struggle with maintaining consistent quality due to individual displays being calibrated separately and not adjusting to ambient conditions, leading to artifacts and the need for manual maintenance without advanced warning.
Innovation Solution
A system that uses sensors to optimize display parameters, automatically adjusting both input signals and operating points of displays, and predicting when maintenance is needed, while minimizing artifacts and ensuring consistent quality across displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If displays are calibrated separately in factory, then manufacturing process is simple, but display quality consistency deteriorates
Solution Approach 1:
The system uses sensors to capture optical feedback from the display output and automatically adjusts display parameters based on this feedback. This closed-loop approach compensates for variations between individually calibrated displays, ensuring consistent quality across multiple displays without requiring complex manual calibration processes.
Solution Approach 2:
The display system performs self-calibration by automatically adjusting its own parameters based on sensor feedback. The system monitors its own output and makes real-time corrections to maintain optimal display quality, eliminating the need for external manual calibration while ensuring consistency.
2Reliability
If manual maintenance is performed, then display quality can be maintained, but time consumption and labor increase
Solution Approach 1:
Sensors continuously monitor display performance and provide feedback to the control system. This real-time monitoring enables automatic detection of quality degradation and triggers corrective actions without requiring manual inspection, significantly reducing maintenance time while maintaining display quality.
Solution Approach 2:
The system performs self-diagnosis and self-maintenance by automatically adjusting parameters based on sensor feedback. When quality degradation is detected, the system autonomously corrects the issue without human intervention, eliminating the need for manual maintenance while ensuring continuous quality.
3Device complexity
If display parameters are fixed, then system complexity is low, but adaptability to ambient conditions deteriorates
Solution Approach 1:
The system dynamically adjusts display parameters in real-time based on ambient conditions detected by sensors. Instead of fixed parameters, the system continuously adapts brightness, contrast, and other parameters to match changing environmental conditions, achieving high adaptability through automated dynamic control.
Solution Approach 2:
Sensors monitor ambient conditions and provide feedback to the control system, which automatically adjusts display parameters in response. This feedback loop enables the system to adapt to changing environments without requiring complex manual configuration, achieving versatility through automated environmental sensing and response.
Data Source
AI summary
This invention provides an improved display system and method that is created by adjusting the properties of one or more displays to obtain coarse control over display behavior, by using sensors to optimize display parameters. The display is further improved by constructing a display map by selectively driving the display and sensing the optical image created. Furthermore, the sensors are used to ensure that the resulting optimized display meets target quality measurements over time, potentially taking into account ambient conditions. The system reports on status, and can predict when it no longer meets a quality target. It is able to optimize a display system and keep it optimized over time. Individual displays with the display system can have operating points that are matched to each other. Corrections to the input image signal, delivering improved display system performance, are minimized, and therefore, unwanted artifacts of those changes can be minimized.