Auto Calibration Display Light Guide Sensor Feedback
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Solution Overview
Problem
Conventional RGB LED backlit displays face challenges in controlling color due to fixed gamma voltages and backlights, leading to potential color inaccuracies over time, which existing methods struggle to address effectively.
Innovation Solution
An information handling system with a movable housing configuration, integrated sensor, and light guide that channels display attributes to a sensor for calibration, allowing for real-time adjustment of display settings, including RGB LED intensity, to maintain color accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed gamma voltages and backlights are used in RGB LED displays, then device complexity is reduced, but color accuracy deteriorates over time
Solution Approach 1:
The patent implements an automatic calibration system where a sensor measures the actual light output from the display, and processing circuitry compares this measurement against target values. Based on the comparison, the system automatically adjusts gamma voltages and backlight intensities to correct color drift, establishing a closed-loop feedback mechanism that maintains color accuracy without manual intervention
Solution Approach 2:
The display system performs self-calibration using integrated sensors and processing circuitry that automatically detect and correct color deviations. The system monitors its own performance and adjusts its parameters without requiring external calibration equipment or user intervention, enabling the display to maintain accuracy autonomously over time
2Measurement precision
If manual calibration methods are used, then color accuracy can be improved, but loss of time increases due to complex calibration procedures
Solution Approach 1:
The system automatically performs calibration without requiring user intervention. Sensors continuously monitor display output and the processing circuitry autonomously adjusts parameters to maintain color accuracy, eliminating the time-consuming manual calibration process while maintaining high precision
Solution Approach 2:
The automatic feedback loop continuously measures display performance and makes real-time adjustments, replacing manual calibration procedures with an automated system that maintains color accuracy without requiring user time or expertise
3Measurement precision
If RGB LED intensity is adjusted dynamically, then color accuracy is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The processing circuitry serves multiple functions: it controls gamma voltages, adjusts backlight intensities, processes sensor data, and performs calculations to determine optimal settings. This multi-functional approach consolidates control complexity into a single intelligent component rather than requiring separate dedicated circuits for each function
Solution Approach 2:
The dynamic adjustment of RGB LED intensity is driven by automatic feedback from sensors, which measure actual output and trigger corrections only when deviations are detected. This on-demand adjustment approach maintains color accuracy while minimizing unnecessary control activity and complexity
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 system enables precise calibration of display attributes like color, contrast, and brightness, ensuring consistent and accurate color representation by adjusting RGB LED intensities based on real-time measurements, thereby addressing the limitations of fixed color palettes.
Implementation Method 1
the light guide having an input and an output. In the closed configuration, the input faces a portion of the display and channels light having display attributes from the display to the output
Data Source
AI summary
An information handling system having a first housing, a second housing interoperably coupled to the first housing and movable relative to the first housing between an open configuration and a closed configuration, and a sensor integrated with a housing of the first housing and the second housing. A display integrated with the same housing of the first housing and the second housing as the sensor and a light guide integrated with a different housing of the first housing and the second housing from the sensor, the light guide having an input and an output. In the closed configuration, the input faces a portion of the display and channels light having display attributes from the display to the output and the sensor is at least partially aligned with the output and receives at least some of the channeled light.