Electronic Device Light-Filtering Unit Chromaticity Control
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Solution Overview
Problem
The automobile industry faces chromaticity deviation issues when adjusting the color of pilot lamps by replacing LEDs, which is inefficient and may not accurately meet user demands for color adjustments.
Innovation Solution
An electronic device with a light-emitting unit and a light-filtering unit, comprising a substrate and light-conversion layers, is developed. The vehicle control unit modulates the light intensity and color based on sensing signals, allowing for precise adjustment of light emission through the light-filtering unit to achieve desired chromaticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the color of pilot lamps is adjusted by replacing LEDs, then the color can be changed, but chromaticity deviation occurs and color accuracy deteriorates
Solution Approach 1:
The patent changes the wavelength parameters of multiple light sources (first, second, and third light sources with different wavelengths) and combines them through additive mixing to achieve precise chromaticity control. By adjusting the intensity ratios of these multiple wavelengths, the system can accurately reach target chromaticity coordinates without deviation, resolving the chromaticity accuracy problem while maintaining color adjustment versatility.
Solution Approach 2:
The patent uses a composite light emission approach by combining multiple light sources with different spectral characteristics (first light source, second light source, third light source) to create a composite light output. This composite approach allows precise chromaticity control through spectral mixing, avoiding the chromaticity deviation that occurs with single LED replacement methods.
2Manufacturing precision
If multiple light sources with different wavelengths are used, then color accuracy is improved, but device structure becomes more complex
Solution Approach 1:
The patent merges multiple light sources (first, second, and third light sources) and their corresponding driving circuits into a single integrated module. The housing contains all these components together, and the control system manages them as a unified system. This merging approach maintains the chromaticity accuracy benefits of multiple wavelengths while reducing overall device complexity through integration.
Solution Approach 2:
The patent creates a multi-functional light emission device that can produce multiple colors and adjust chromaticity by using a single integrated module containing multiple light sources and control circuits. This universal design allows the same structure to achieve various color outputs and chromaticity adjustments, reducing the need for separate devices for different color functions.
3Ease of manufacture
If LED replacement is used for color adjustment, then implementation is simple, but color accuracy and user demand satisfaction are insufficient
Solution Approach 1:
The patent performs preliminary setup by pre-configuring multiple light sources with specific wavelength characteristics and their corresponding driving circuits within an integrated module. The control system is pre-programmed with target chromaticity coordinates and the algorithms to achieve them. This preliminary configuration maintains implementation simplicity while enabling high color accuracy, as the complex spectral mixing and control logic are already established during manufacturing rather than requiring complex field adjustments.
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 solution enables precise control over the color and intensity of light emitted by pilot lamps, reducing chromaticity deviation and improving color accuracy, thus better meeting user demands without the need for LED replacements.
Implementation Method 1
The light-filtering unit includes a substrate and a light-conversion layer disposed on the substrate. The first emitted light passes through the first light-filtering unit to form a second emitted light.
Data Source
AI summary
An electronic device is provided. The electronic device includes an electronic unit, a vehicle control unit and a sensing unit. The electronic unit includes a light-emitting unit that provides a first emitted light and a first light-filtering unit disposed on the light-emitting unit. The first light-filtering unit includes a substrate and a first light-conversion layer disposed on the substrate. The vehicle control unit is electrically connected to the light-emitting unit. The sensing unit is electrically connected to the vehicle control unit. The vehicle control unit modulates the intensity of the first emitted light based on the sensing signal from the sensing unit. The modulated first emitted light passes through the first light-filtering unit to form a second emitted light.