Ring Wearable Display With Dual-Surface Optical Biometric Sensing
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Solution Overview
Problem
Existing portable display devices lack the capability to conveniently measure biometric information such as blood pressure, heart rate, and oxygen saturation, and require separate components like a light source and sensor, making them inconvenient for users.
Innovation Solution
A wearable display device in the form of a ring or cylindrical shape that emits and receives light on both inner and outer surfaces to detect biometric information and sense touch movements, incorporating a housing, display panel, main driver circuit, and sensing circuit to measure biometric data and direction control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate light source and sensor are added to a portable display device to measure biometric information, then the biometric measurement capability is improved, but the device complexity and convenience are worsened
Solution Approach 1:
The patent combines the display panel with light-emitting and light-sensing functions into a single integrated component. The display panel serves dual purposes: displaying information and measuring biometric data through light emission and reflection detection, thereby eliminating the need for separate light sources and sensors.
Solution Approach 2:
The display panel is designed to perform multiple functions simultaneously: it acts as both a display device and a biometric sensor. By emitting light and detecting reflected light, the same component enables blood pressure, heart rate, and oxygen saturation measurements without requiring additional specialized hardware.
2Measurement precision
If a wearable display device emits and receives light on both inner and outer surfaces, then the biometric detection accuracy and touch sensing capability are improved, but the device complexity increases
Solution Approach 1:
The patent extends the light emission and detection functionality to both the inner and outer surfaces of the wearable device, utilizing the third dimension (depth/thickness) of the structure. This dual-surface approach enables simultaneous biometric measurement and touch direction sensing by detecting light reflection from different surfaces.
Solution Approach 2:
The light-sensing function is divided into two distinct detection zones: one for detecting light reflected from the inner surface (for biometric measurement) and another for detecting light reflected from the outer surface (for touch direction sensing). This segmentation allows independent optimization of each sensing function.
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 quick and accurate real-time measurement of biometric information like blood pressure, heart rate, and oxygen saturation, and provides direction control through light sensing, enhancing the functionality of wearable devices.
Implementation Method 1
detects a first light-sensing signal by emitting and receiving light in a first direction and detects a second light-sensing signal by emitting and receiving light in a second direction
Implementation Method 2
senses movement of a touch by a part of the user's body using the second light-sensing signal
Data Source
AI summary
A wearable display device includes a housing formed in a ring or cylindrical shape, a display panel which is disposed inside the housing in a ring or cylindrical shape, detects a first light-sensing signal by emitting and receiving light in a first direction and detects a second light-sensing signal by emitting and receiving light in a second direction, and a main driver circuit which detects a user's pulse wave signal using the first light-sensing signal, measures the user's biometric information, and senses movement of a touch by a part of the user's body using the second light-sensing signal.