Temperature-Based Pixel Calibration for AR Display Panel Alignment
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Solution Overview
Problem
Augmented reality (AR) display devices face misalignment issues due to differing expansion degrees of monochrome display panels, leading to pixel misalignment and degraded display quality.
Innovation Solution
A pixel calibration method that aligns pixels one-to-one by determining a calibration strategy based on temperature ranges using a temperature sensor and a controller, enabling automatic calibration upon specific conditions or manual image analysis, and verifying the alignment to ensure accurate display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three monochrome display panels are used to increase full-color pixel quantity and improve resolution, then display resolution is improved, but pixel misalignment occurs due to different expansion degrees of the panels
Solution Approach 1:
The patent applies parameter changes by detecting temperature variations and selecting different pixel calibration strategies based on temperature ranges. The calibration parameters (such as pixel position offsets) are adjusted according to the detected temperature, compensating for thermal expansion differences among the three monochrome display panels and maintaining pixel alignment across varying operating conditions.
2Manufacturing precision
If pixel calibration is performed manually through image analysis, then pixel alignment accuracy is improved, but device complexity and operation time increase
Solution Approach 1:
The patent implements self-service by enabling the display device to automatically perform pixel calibration without requiring external manual intervention. The system uses its own temperature sensor to detect temperature changes and automatically selects and executes the appropriate pixel calibration strategy, making the calibration process autonomous and eliminating the need for complex manual image analysis operations.
Solution Approach 2:
The patent applies feedback by using temperature detection as a trigger condition for pixel calibration. The system continuously monitors temperature changes and uses this feedback information to determine when calibration is needed and which calibration strategy to apply, creating a closed-loop control system that automatically responds to environmental conditions.
3Manufacturing precision
If automatic pixel calibration based on temperature detection is implemented, then pixel misalignment is prevented and display quality is improved, but power consumption increases
Solution Approach 1:
The patent applies periodic action by triggering pixel calibration only at specific intervals or under specific temperature change conditions, rather than continuously. The system monitors temperature changes and performs calibration periodically when temperature thresholds are exceeded or after predetermined time intervals, reducing unnecessary calibration operations and associated power consumption while maintaining display quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively prevents pixel misalignment, improving display quality and reducing power consumption by optimizing pixel alignment processes.
Implementation Method 1
obtaining a current temperature of the display module when an automatic calibration function is enabled and a preset automatic calibration condition is met
Data Source
AI summary
This application provides a display device and a pixel calibration method therefor, and relates to the field of display technologies. When an automatic calibration function is enabled, and a preset automatic calibration condition is met, a pixel calibration strategy corresponding to a temperature range within which a current temperature of a display module falls is found from a correspondence between a temperature range and a pixel calibration strategy. A to-be-calibrated display panel is found according to the pixel calibration strategy. A pixel that is used to emit light on the to-be-calibrated display panel is determined. Even if pixels that are used to emit light on display panels are misaligned because expansion degrees of the display panels are different, the pixels that are used to emit the light on the display panels can still be one-to-one aligned through calibration.