Wearable Optical Sensor Display for Accurate Biometric Measurement
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Solution Overview
Problem
Existing wearable devices face challenges in providing accurate, reliable, and miniaturized biological signal measurement capabilities while being portable and capable of integrating display and communication functions.
Innovation Solution
A wearable device comprising a substrate with blocks and connection wirings, each block containing a light detector and semiconductor light-emitting elements that emit light forward and backward for image display and biological signal measurement, utilizing miniaturized semiconductor elements for enhanced accuracy and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple blocks with light detectors and pixels are integrated into a single wearable device, then measurement precision and reliability are improved, but device complexity increases
Solution Approach 1:
The device is divided into multiple independent blocks, each containing a light detector and pixels. Each block can measure biological signals separately, and the results are combined to improve overall measurement precision and reliability while maintaining manageable complexity through modular design
Solution Approach 2:
Multiple functional components (light detectors, pixels, substrates) are merged into integrated blocks that work together. The first substrate supports multiple blocks with connection wirings, creating a unified wearable device that combines display and measurement functions in a single portable unit
2Volume of moving object
If semiconductor light-emitting elements are miniaturized to micrometer scale, then device size is reduced for better portability, but manufacturing precision requirements increase
Solution Approach 1:
The light-emitting elements are scaled down to micrometer dimensions, changing the size parameter to achieve miniaturization. This enables the device to be portable and wearable while maintaining functional performance through advanced fabrication techniques that can achieve the required manufacturing precision at this scale
3Adaptability or versatility
If light is emitted both forward and backward by semiconductor elements, then dual functionality for image display and biological signal measurement is achieved, but energy consumption increases
Solution Approach 1:
The semiconductor light-emitting elements serve dual purposes: emitting light forward for image display and emitting light backward for biological signal measurement. This multi-functionality allows a single element to contribute to both display and measurement operations, reducing the need for separate dedicated components and optimizing overall energy usage
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 accurate and reliable measurement of various biological signals, including blood pressure and glucose, with efficient miniaturization and integration of display and communication functions, improving healthcare efficiency.
Implementation Method 1
at least one or more first semiconductor light-emitting element configured to emit a first light; at least one or more second semiconductor light-emitting element configured to emit a second light; and at least one or more third semiconductor light-emitting element configured to emit a third light
Implementation Method 2
a light detector on the second substrate
Data Source
AI summary
A wearable device may include a plurality of blocks on a first surface of a first substrate, and a plurality of connecting wires configured to connect the plurality of blocks. The plurality of blocks may each include a second substrate on the first substrate, a light detector on the second substrate, and a plurality of pixels around the light detector on the second substrate. The plurality of pixels may each include at least one or more first semiconductor light-emitting element configured to emit first light, at least one or more second semiconductor light-emitting element configured to emit second light, and at least one or more third semiconductor light-emitting element configured to emit third light. The second semiconductor light-emitting element may emit a portion of the second light forward and another portion of the second light backward to be transmitted to the light detector.