Touchscreen Display Zone Segmentation for Avionics Visibility
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Solution Overview
Problem
Interactive touchscreen displays in avionics and similar environments face challenges in maintaining high visibility and viewability of critical information under high ambient illumination without requiring positional changes or shading, as they are prone to optical fouling and wear from frequent tactile interactions, making it difficult to preserve optical performance without cleaning or maintenance.
Innovation Solution
The method involves separating the touchscreen display's viewing surface into distinct zones for critical information presentation and haptic input reception, coordinating their usage, and dynamically adjusting optical output based on environmental and usage data to maintain visibility and viewability without cleaning or maintenance, using a system that includes a controller to manage the display's zones and adjust optical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the touchscreen display surface is used for frequent tactile interactions to enable haptic user inputs, then the interactivity and ease of operation are improved, but the optical performance deteriorates due to contamination and wear from repeated touching
Solution Approach 1:
The touchscreen display surface is divided into multiple distinct zones: a first zone optimized for presenting critical information with high visibility characteristics, and a second zone optimized for receiving haptic user inputs. This spatial segmentation allows each zone to serve its primary function while minimizing the negative impact of tactile interactions on the display of critical information.
2Illumination intensity
If the display presents critical information with high luminance and contrast to maintain visibility under high ambient illumination, then the visibility is improved, but the optical performance deteriorates more quickly due to the heightened impact of contaminants and wear
Solution Approach 1:
The display surface is segmented into zones with different optical performance requirements. The first zone presents critical information with high luminance and contrast, while the second zone accepts tactile inputs where optical performance degradation is less critical. This segmentation protects the high-luminance display area from the detrimental effects of contamination and wear.
Solution Approach 2:
Different regions of the touchscreen display are assigned different functional qualities: the first zone is optimized for visual presentation with high visibility characteristics, while the second zone is optimized for tactile interaction. This local differentiation ensures that critical information maintains high visibility without being subject to the same degradation as frequently touched areas.
3Reliability
If cleaning or maintenance is performed on the display surface to remove contaminants and restore optical performance, then the visibility is improved, but the operation is interrupted and critical information may be obscured during cleaning
Solution Approach 1:
By segmenting the display into a first zone for critical information and a second zone for tactile inputs, the system reduces the need for frequent cleaning of the entire display surface. The second zone, being separate from the critical information area, can accumulate some contamination without significantly impacting the visibility of critical data, thereby reducing maintenance interruptions.
4Illumination intensity
If the display is positioned or shaded to avoid direct lighting sources to maintain viewability, then the visibility under high ambient illumination is improved, but the ease of operation deteriorates as the display cannot be freely positioned or moved
Solution Approach 1:
The segmentation of the display surface into functionally distinct zones allows the entire display to be optimally positioned for visibility without requiring physical shading or positional adjustments. The first zone maintains high visibility characteristics for critical information, while the second zone handles tactile inputs, eliminating the need to compromise display positioning for shading purposes.
Data Source
AI summary
Information is presented on a touchscreen display. An available viewing surface area of the touchscreen is separated into a first zone and at least a second zone. The first zone is operable for presenting a critical portion of the information. The second zone is operable for receiving haptic user inputs. Usage of the first zone and the second zone are coordinated. The presentation of the critical information in the first separated zone, and/or a prompt related to at least one of the one or more haptic user inputs may be controlled based on the coordinated usage.