OLED Flash Illumination Device for Mobile Devices
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Solution Overview
Problem
Conventional LED flash illumination in mobile devices is inefficient due to high power consumption, limited light distribution, and unnatural light emission, which can cause visual impairment and is not environmentally sustainable.
Innovation Solution
A flash illumination device using organic light-emitting diodes (OLEDs) that provides low-power, surface-emitting, and flexible light capable of simulating natural light through remote control of spectral curves, allowing for instantaneous or persistent lighting with reduced power consumption and adaptable shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional LED is used as a flash illumination device, then the light emission is instantaneous and point-emitting, but the power consumption is high and the light distribution is limited
Solution Approach 1:
The patent transitions from point-emission (0D/1D) to surface-emission (2D) by using an organic light-emitting diode structure that emits light across a surface area rather than from a single point. This dimensional change enables broader light distribution while maintaining lower power consumption, as the light is distributed across multiple emission points simultaneously.
Solution Approach 2:
The patent changes the emission characteristics by using organic electroluminescent materials that can be tuned to emit full-spectrum or natural light, compared to conventional LEDs. This parameter change in the emission spectrum and spatial distribution allows for improved light quality and broader coverage with reduced power consumption.
2Illumination intensity
If a conventional LED flash is used, then the light emission is instantaneous, but the light quality is unnatural and causes visual impairment
Solution Approach 1:
The patent changes the spectral parameters of the light emission by using organic electroluminescent materials that can produce full-spectrum or natural light with appropriate color temperature, as opposed to the narrow-band emission of conventional LEDs. This parameter change in the emission spectrum eliminates harmful blue light dominance and provides more natural illumination that is easier on the eyes.
3Device complexity
If conventional materials are used for LED manufacturing, then the device structure is complex and requires additional components, but the manufacturing cost increases and natural resources are depleted
Solution Approach 1:
The patent uses organic electroluminescent materials that can be deposited as thin films, replacing the need for complex inorganic LED structures with multiple layers and components. This composite material approach simplifies the device structure, reduces the number of required components, and enables more sustainable manufacturing processes that rely on organic materials rather than rare earth elements.
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 OLED-based flash illumination device extends battery life, provides broad and natural-like illumination, and is environmentally friendly, reducing the need for additional structural components and manufacturing costs while minimizing visual strain.
Implementation Method 1
an organic light-emitting diode unit disposed on a lateral surface of the connection unit and electrically connected to the electronic apparatus through the connection unit, wherein the organic light-emitting diode unit is operated under control of the electronic apparatus to emit instantaneous light for use in supplemental lighting
Data Source
AI summary
A flash illumination device for use with an electronic apparatus is provided and includes a connection unit and at least one organic light-emitting diode unit. The electronic apparatus includes a video shooting component or a display screen. The connection unit electrically connects with the electronic apparatus. The organic light-emitting diode unit is coated on a lateral surface of the connection unit and electrically connected to the electronic apparatus through the connection unit. The organic light-emitting diode unit starts under the control of the electronic apparatus and emits instantaneous light or persistent light, which is conductive to low power consumption and characterized by surface emission, while the video shooting component is capturing an image, so as to provide supplemental lighting.