Self-Powered Display Panel With Dual Light Conversion Charging
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Solution Overview
Problem
Existing self-powered display devices face limitations in power generation due to the inefficiency of solar panels capturing ambient light and the integration of wireless charging functions, particularly in environments with insufficient ambient light, and the challenge of manufacturing complexity and cost.
Innovation Solution
A self-powered display device with a substrate featuring a light-transmitting display module and a wireless charging module, utilizing different wavelength ranges for ambient light and infrared radiation conversion, and a power storage module to enhance power generation and simplify manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a solar panel is installed below the ChLCD to capture ambient light, then the display can achieve self-powered function, but the solar panel can only capture part of the light that penetrates ChLCD to generate power
Solution Approach 1:
The patent applies multi-functionality by enabling the solar panel to serve dual purposes: capturing ambient light for display power and receiving infrared radiation for wireless charging. The solar panel is designed with spectral splitting capabilities to handle different wavelength ranges for different functions simultaneously.
Solution Approach 2:
The patent extends the functional dimension of the solar panel from single-wavelength ambient light capture to multi-wavelength operation including infrared radiation. This dimensional expansion in spectral response enables both display power and wireless charging functions.
2Power
If expanding the wireless charging function on the same solar panel to increase power generation, then power generation capability increases, but the solar cells for absorbing ambient light and wireless charging have different absorption bands
Solution Approach 1:
The patent segments the spectral absorption function by integrating multiple types of solar cells with different absorption characteristics. Each solar cell type is optimized for specific wavelength ranges, and they work together to cover the full spectrum from visible to infrared radiation.
Solution Approach 2:
The patent employs composite material principles by combining multiple solar cell materials with complementary absorption bands. This composite structure enables the panel to efficiently convert both visible ambient light and infrared wireless charging radiation into electrical energy.
3Productivity
If using different types of solar cells with different absorption bands for ambient light and wireless charging, then power generation efficiency improves, but manufacturing complexity and cost increase
Solution Approach 1:
The patent merges multiple solar cell types into a unified integrated structure that handles both ambient light capture and wireless charging. This combined design simplifies manufacturing by treating the multi-functional panel as a single integrated component rather than separate assemblies.
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 device achieves increased power generation through dual light conversion, supports wireless charging without interference, and reduces manufacturing complexity and cost by using the same type of solar cells in both display and non-display regions.
Implementation Method 1
the first photoelectric conversion unit converts the first light into a first electrical energy
Implementation Method 2
the wireless charging module converts the second light into a second electrical energy
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A self-powered display device is proposed, and includes a light-transmitting panel and a photoelectric converting module. The light-transmitting panel includes a display region for allowing light to penetrate. The photoelectric converting module is electrically connected to the light-transmitting panel. The photoelectric converting module includes a power generation region for absorbing the light penetrating the display region, and the power generation region converts the light into electrical energy to provide electrical energy to the light-transmitting panel. The light-transmitting panel is spaced apart from the photoelectric converting module, and a projected area of the display region on the power generation region is larger than the area of the power generation region.