Display Illumination for Spectral Sensing
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Solution Overview
Problem
Existing spectral sensing technologies are often expensive, large, and complex, making them difficult to use for acquiring spectral information efficiently and effectively, especially in portable or handheld applications.
Innovation Solution
A user device comprising a spectrometer module and a display with controllable spectral output, where the display functions as an illumination source, allowing for flexible and cost-effective spectral sensing by controlling the spectral output and detecting incident light, and using correction data to adjust spectral data for accurate interpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated spectrometer devices are used for acquiring spectral information, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines a display device with spectrometer functionality by integrating a light sensor array behind the display pixels. The display serves dual purposes: showing information and acting as an illumination source for spectral measurement. This merging eliminates the need for separate illumination sources and reduces overall device complexity while maintaining spectral measurement capability.
Solution Approach 2:
The display pixels are made multi-functional by allowing them to serve both as visual output elements and as controlled illumination sources for spectral sensing. The light sensor array behind the display detects light transmitted through the display, enabling the same display structure to perform both display and spectral measurement functions simultaneously.
2Measurement precision
If traditional spectrometer systems are used, then spectral sensing capability is achieved, but portability and ease of operation deteriorate
Solution Approach 1:
The patent integrates the spectrometer functionality directly into a portable display device, combining what were previously separate benchtop instruments into a single handheld unit. This integration maintains spectral sensing capability while dramatically improving portability and ease of operation.
Solution Approach 2:
The display device serves itself by using its own display pixels as the illumination source for spectral measurement. This self-service approach eliminates the need for external illumination sources, making the device more self-contained, portable, and easier to operate in field conditions.
3Measurement precision
If separate illumination sources are used for spectral measurement, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The display pixels are repurposed to serve as illumination sources, making the display structure multi-functional. This eliminates the need for separate illumination sources while maintaining the ability to perform spectral measurements with controlled wavelengths.
Solution Approach 2:
The display device uses itself as the illumination source, with the display pixels emitting light that passes through the sample and is detected by the light sensor array behind the display. This self-service approach simplifies the device architecture by eliminating external illumination components.
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
Enables the acquisition of spectral information using a compact, inexpensive device that is easy to use, providing flexible and accurate spectral sensing capabilities without the need for a separate light source, thus improving portability and usability.
Implementation Method 1
a display (160) having a controllable spectral output, wherein (in use of the user device) the processing unit is adapted to control the display to illuminate said region with a light of a set spectral output
Implementation Method 2
a spectrometer module (10) adapted to acquire spectral information and output spectral data representing the acquired spectral information
Data Source
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AI summary
The present invention relates to a user device (100) comprising: a spectrometer module (10) adapted to acquire spectral information from a region, a display (160) having a controllable spectral output, and a processing unit (120) adapted to control the spectral output of the display (160), wherein, in use of the user device (100), the processing unit (120) is adapted to control the display (160) to illuminate said region with a light of a set spectral output and the spectrometer module (10) is adapted to detect incident light from the region.