Wearable OLED Visual Stimulation Platform for Brain Function Control
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Solution Overview
Problem
Conventional long-term visual stimulation technologies using LEDs are inefficient and may cause eye tissue damage due to localized light emission and heat generation, making it difficult to achieve effective cognitive ability prevention and recovery without repeated stimulation for extended periods.
Innovation Solution
A short-term visual stimulation platform utilizing an organic light-emitting diode (OLED) with optimized light emission uniformity and wavelength, configured as a wearable device with a control unit that sets time, brightness, frequency, and duty ratio for light generation, allowing for customizable light wavelengths and modes for effective brain function control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED visual stimulation is used, then light emission is achieved, but localized light emission causes non-uniform stimulation and heat generation damages eye tissue
Solution Approach 1:
The patent segments the light emission function by using multiple LEDs arranged in a matrix pattern rather than a single LED, distributing the light source across multiple locations to achieve uniform illumination while reducing localized heat concentration on the retina
Solution Approach 2:
The patent applies local quality by controlling each LED individually with independent drive signals, allowing different regions of the light-emitting array to emit light with specific characteristics optimized for uniform retinal stimulation while managing heat distribution
2Reliability
If long-term repeated stimulation is applied, then cognitive ability improvement is achieved, but extended stimulation time increases power consumption and reduces user convenience
Solution Approach 1:
The patent implements periodic action through flash patterns that alternate between light emission and darkness at specific frequencies (e.g., 40 Hz), delivering cognitive benefits through rhythmic stimulation rather than continuous illumination, thereby reducing overall power consumption while maintaining therapeutic effectiveness
Solution Approach 2:
The patent achieves continuity of useful action by using persistent phosphor materials that continue to emit light after the LED excitation is removed, extending the effective stimulation duration beyond the actual power consumption period and reducing the duty cycle required for therapeutic effect
3Illumination intensity
If high brightness LED is used, then light stimulation intensity is sufficient, but heat generation increases causing eye tissue damage
Solution Approach 1:
The patent segments the high-brightness light emission function across multiple lower-power LEDs arranged in a matrix, distributing the total light output requirement across many individual emitters, which reduces the heat generation per LED while maintaining sufficient overall illumination intensity for retinal stimulation
Solution Approach 2:
The patent introduces persistent phosphor material as an intermediary between the LED excitation source and the retinal target, converting the LED's light output to prolonged phosphorescent emission, which allows using lower-power LEDs that generate less heat while still achieving sufficient stimulation intensity through the phosphor's extended emission
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 platform effectively prevents cognitive ability deterioration and achieves quick recovery through behavioral modification with short-term stimulation, consuming low power and minimizing side effects such as tissue damage, while providing stable visual stimulation even to moving subjects.
Implementation Method 1
an organic light-emitting diode (OLED) with optimized light emission uniformity and wavelength
Data Source
AI summary
The present invention relates to an organic light-emitting short-term visual stimulation platform for brain function control. The visual stimulation platform, according to an aspect of the present invention, comprises: an OLED module; a control unit which controls an operation of the OLED module; and a power supply unit which supplies operating power to the OLED module and the control unit, wherein the visual stimulation platform is configured as a wearable device to project light generated from the OLED module to the eyes of a user under the control by the control unit, and the control unit may include a time setting unit, a brightness setting unit, a frequency setting unit, and a duty ratio setting unit for light generation of the OLED module.