Touchpad Reflective Layer for Self-Calibrating Display Color
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Solution Overview
Problem
Color calibration in mobile computing devices like laptops is cumbersome and inconsistent due to the need for external sensors, which increases costs and manufacturing complexity.
Innovation Solution
Incorporating a color sensor into the touchpad with a reflective layer that reflects a color calibration pattern displayed by the screen, allowing for self-calibration without additional external devices, and using a processor to adjust for reflection losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external sensors are used to capture color outputs for calibration, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The device uses its own display to generate the color calibration pattern and its own color sensor to detect the reflected pattern, eliminating the need for external calibration devices. The display serves both as the source of calibration data and the target being calibrated, while the integrated color sensor performs both environmental sensing and calibration detection functions.
Solution Approach 2:
The color sensor is designed to perform multiple functions: detecting ambient light conditions for display adaptation and capturing reflected color calibration patterns for self-calibration. The display serves dual purposes as both the output device and the calibration pattern source, reducing the need for separate dedicated calibration components.
2Measurement precision
If additional sensors are added to the device for calibration, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The device performs self-calibration using existing integrated components (display and color sensor) without requiring additional external sensors or specialized calibration hardware, thereby avoiding increased manufacturing costs and complexity.
Solution Approach 2:
The system creates a optical copy of the calibration pattern by displaying it on the screen and capturing its reflection. This allows the color sensor to measure the actual color output indirectly through the reflected light path, using the display itself as both source and measurement target.
3Measurement precision
If the color sensor field of view is optimized to be entirely encompassed by the touchpad, then measurement precision is improved, but device design constraints increase
Solution Approach 1:
The touchpad with reflective layer serves as an intermediary between the display and the color sensor. It provides a controlled reflection surface that directs the calibration pattern light to the sensor while maintaining precise optical alignment, eliminating the need for complex mechanical positioning mechanisms.
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
This method simplifies color calibration by leveraging existing hardware, reducing manufacturing complexity and ensuring consistent results without the need for external sensors, while maintaining cost-effectiveness.
Implementation Method 1
the touchpad includes a reflective layer to reflect a color calibration pattern displayed by the display
Data Source
AI summary
An example computing device includes: a display to display a color calibration pattern; a touchpad to receive input for the computing device, the touchpad having a reflective layer to reflect the color calibration pattern; a color sensor to detect the reflected color calibration pattern from the touchpad; a processor interconnected with the color sensor and the display, the processor to calibrate a color output of the display based on the color calibration pattern detected at the color sensor.