Medical Display Luminance Boost and Eye Adaptation Control
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Solution Overview
Problem
Medical and satellite imaging displays face challenges in balancing luminance levels to maximize detectability of subtle features while minimizing the degradation and inefficiency associated with high luminance settings, as prolonged high luminance can shorten the display's lifespan and require lengthy eye adaptation times.
Innovation Solution
Implementing a dual-mode system where the display operates in a normal mode with a balanced luminance for longevity and detectability, and a boost mode with increased luminance for enhanced feature detection, which can be triggered by user request or automatically, with adaptive calibration to match human eye adaptation and return to normal mode based on time or temperature thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display operates at maximum luminance to improve detectability of subtle features, then the ability to see subtle features is improved, but the display lifetime is reduced and degradation accelerates
Solution Approach 1:
The display system dynamically adjusts luminance between normal mode and boost mode based on operational needs. The controller switches between different luminance levels to balance detectability requirements with display lifetime preservation, making the system adaptive rather than static.
Solution Approach 2:
The display operates in periodic cycles, spending most time in normal mode for longevity and temporarily switching to boost mode when enhanced detectability is needed. This periodic switching pattern allows the display to provide high luminance only when necessary, reducing cumulative degradation.
2Illumination intensity
If the display increases luminance to improve detectability, then subtle features become more visible, but heat levels increase and efficiency decreases
Solution Approach 1:
The display uses periodic action by switching between normal and boost modes, allowing high luminance and associated heat generation only when necessary for detecting subtle features, rather than continuous operation at high levels.
3Illumination intensity
If the display operates at high luminance to maximize detectability, then feature visibility is improved, but the rate of degradation increases
Solution Approach 1:
The system dynamically adjusts operating conditions based on实际需求, switching from normal mode to boost mode only when enhanced detectability is required. This dynamic control prevents unnecessary acceleration of degradation while maintaining the ability to provide high luminance when needed.
Solution Approach 2:
The display changes operational parameters by switching between different luminance levels and drive conditions. By adjusting the luminance parameter dynamically rather than maintaining a fixed high level, the system reduces cumulative stress on display components while preserving the capability for high-performance operation.
4Illumination intensity
If the display temporarily boosts luminance for improved detectability, then subtle features can be detected more easily, but eye adaptation time is required reducing productivity
Solution Approach 1:
The system performs preliminary calibration and preparation before switching to boost mode, including adjusting drive conditions and preparing the display state to minimize adaptation requirements. This preliminary action reduces the time needed for eye adaptation when luminance changes occur.
Data Source
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AI summary
A system and method for increasing perceived contrast in a medical display (174) is provided. The method involves temporarily increasing luminance output (152) of at least part of a display (174) in response to a received request for improved visualization (150). To compensate for the change in luminance especially while the viewer's eyes adapt to the change in luminance, the method includes continuously modifying the display parameters especially during an adaptation period to match an adaptation of the viewer's eyes (156). The modified parameters at any given may correlate to the degree of adaptation by the viewer's eyes to the change. After a period of time, the display (174) may be returned to its normal operating luminance (158) and corresponding settings (162), which may be selected to maximize the lifetime of the display (174)