Wire Grid Polarizer Aperture Optimization for Foldable Displays
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Solution Overview
Problem
Current electronic devices with wire grid polarizers face challenges in optimizing optical efficiency, particularly in curved, foldable, or stretchable substrates, where improving polarizing performance is essential to meet increasing user demands.
Innovation Solution
The electronic device incorporates a substrate with a grid structure featuring a plurality of apertures and polarizing wires, where the number of polarizing wires within each aperture ranges from 50 to 15000, and their arrangement is optimized based on wavelength to enhance polarizing effects, with the wires extending across apertures and formed using etching or imprint processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of polarizing wires within each aperture is increased, then the polarizing effect is enhanced, but the manufacturing precision requirement increases
Solution Approach 1:
The patent applies parameter changes by optimizing the number of polarizing wires within a specific range (50 to 15000 per aperture) and adjusting wire dimensions and spacing to achieve the desired polarizing effect while maintaining manufacturability. This resolves the contradiction by finding the optimal parameter values that balance performance and manufacturing feasibility.
2Use of energy by moving object
If the polarizing wires are arranged to optimize wavelength-specific polarizing effects, then optical efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by arranging polarizing wires with different densities and orientations in different regions of the grid structure to optimize polarizing effects for specific wavelengths. This allows the device to achieve wavelength-specific optical efficiency enhancement while managing overall device complexity through localized optimization rather than uniform complexity throughout.
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 configuration significantly enhances the polarizing effect by adjusting the number and arrangement of polarizing wires according to the wavelength of light, maintaining performance even with manufacturing deviations, thereby improving optical efficiency in electronic devices.
Implementation Method 1
wire grid polarizers (WGP) are important polarizing components
Data Source
AI summary
An electronic device includes a substrate, a grid structure, and a plurality of polarizing wires. The grid structure is disposed on the substrate and includes a plurality of apertures. The polarizing wires are disposed on the substrate and extend across the apertures. A first number of a portion of the polarizing wires within a first aperture of the apertures is in a range from 50 to 15000.