Sliding Display Age Compensation via Region Illumination Tracking
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Solution Overview
Problem
Handheld electronic communication devices with sliding displays experience differential aging due to varying illumination of screen regions, leading to uneven degradation over time.
Innovation Solution
A method and device configuration that tracks the relative illumination durations of display screen portions and adjusts their illumination levels to compensate for differential aging by enabling or disabling illumination based on the screen's position, using a processor and position sensors to ensure even aging across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sliding display is used with regions illuminated differently, then display functionality is improved, but differential aging of display screen regions occurs over time
Solution Approach 1:
The patent applies local quality by dividing the display screen into multiple regions (first region and second region) with different illumination characteristics. The system tracks illumination durations separately for each region and applies region-specific compensation factors to adjust illumination levels, ensuring each region ages uniformly despite different usage patterns.
Solution Approach 2:
The patent implements feedback by continuously tracking the cumulative illumination duration of different display regions and using this information to dynamically adjust illumination levels. The processor monitors usage patterns and applies compensation factors based on tracked data, creating a closed-loop system that prevents differential aging.
2Reliability
If illumination is enabled based on screen position tracking, then differential aging is compensated, but device complexity increases
Solution Approach 1:
The system performs self-service by automatically tracking its own illumination patterns and compensating for differential aging without external intervention. The processor monitors cumulative illumination durations and autonomously adjusts illumination levels based on tracked data, eliminating the need for manual calibration or external monitoring systems.
Solution Approach 2:
The patent applies preliminary action by tracking illumination durations in advance and calculating compensation factors before significant differential aging occurs. The system proactively adjusts illumination levels based on accumulated usage data, preventing uneven aging rather than correcting it after the fact.
3Duration of action of stationary object
If relative illumination durations are tracked and illumination levels adjusted, then display lifespan is extended, but energy consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting illumination levels (brightness parameters) based on tracked usage patterns. The system modifies illumination intensity in response to cumulative duration data, extending display lifespan by optimizing illumination parameters rather than maintaining constant high-level illumination.
Data Source
AI summary
A method and handheld electronic device for compensating for differential aging of display screen on a handheld electronic device wherein in a first position a first portion of the display screen is hidden from view while a second portion of the display screen is viewable, and in a second position the first portion and the second portion of the display screen are viewable. Over time, relative illumination durations of the first and second portions are tracked and based on the relative illumination durations, a relative degree of illumination of one or both of the first portion and the second portion are adjusted when the display screen is in the second position to compensate for differential aging between the first and second portion.