Edge Touch Screen Biometric Measurement via Pixel Integration
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Solution Overview
Problem
Electronic devices with flexible display panels face challenges in measuring biometrics like heartbeat and SpO2 without additional modules, due to limited space, and existing solutions do not efficiently utilize the device's internal space for such measurements.
Innovation Solution
An edge touch screen with integrated red and near-infrared pixels and sensor pixels that emit light and detect biometric data when touched, allowing for biometric measurement without an additional module, by using the device's display and sensor panels to measure heartbeat and SpO2 through light emission and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a discrete measurement module is used to measure biometrics, then measurement functionality is achieved, but device space is limited and device size increases
Solution Approach 1:
The patent merges the biometric measurement functionality with the existing display panel by integrating red pixels, near-infrared pixels, and sensor pixels directly into the display structure. This eliminates the need for a separate discrete measurement module, thereby reducing device volume while maintaining measurement capability.
Solution Approach 2:
The display panel is designed to serve multiple functions: it acts as both a visual display device and a biometric measurement device. The same panel structure houses display pixels and measurement pixels, allowing the device to perform both display and health monitoring functions without requiring additional dedicated components.
2Measurement precision
If additional modules are added for biometric measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple measurement functions (red light measurement and near-infrared measurement) into a single integrated pixel structure. The display panel contains both red pixels and near-infrared pixels that can simultaneously or sequentially perform different biometric measurements, achieving high measurement precision without requiring separate modules for each measurement type.
3Reliability
If the display panel is made larger to accommodate measurement components, then measurement functionality is achieved, but device thickness increases
Solution Approach 1:
The patent integrates all measurement components (red pixels, near-infrared pixels, and sensor pixels) within the existing display panel thickness. By sharing the same physical space and structural layers, the measurement functionality is achieved without increasing device thickness, as the components are embedded within the display structure rather than adding to it.
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 solution enables convenient biometric measurement, efficient use of internal space, and a slim or downsized device design, providing a new user experience by integrating measurement functionality into the device's display and touch screen.
Implementation Method 1
instructing at least one selected red pixel of the red pixels and at least one selected near infrared ray pixel of the near infrared ray pixels corresponding to a position of the touch input to emit light
Implementation Method 2
measure biometrics based on light amounts of light of different wavelengths received from at least one selected sensor pixel of the sensor pixels corresponding to the position of the touch input
Data Source
AI summary
An electronic device may include an edge touch screen including a main display region and an edge display region extending from the main display region each including one or more of red pixels, near infrared ray pixels, and sensor pixels for detecting light with different wavelengths; and a controller configured to, drive the edge touch screen in response to a touch input for the edge display region being maintained for a set time by instructing at least one selected red pixel of the red pixels and at least one selected near infrared ray pixel of the near infrared ray pixels corresponding to a position of the touch input to emit light, and measure biometrics based on light amounts of light of different wavelengths received from at least one selected sensor pixel of the sensor pixels corresponding to the position of the touch input.