Color Filter-Integrated Polarizer for Thinner Displays
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Solution Overview
Problem
Conventional display devices require separate polarizer and color filter elements, leading to increased thickness and complexity, which hinders the development of thinner and more efficient display technologies.
Innovation Solution
A color filter-integrated polarizer is developed, comprising a conductive material with a polarizer region featuring parallel conductive wire patterns and a color filter region with patterned holes, allowing for both polarization and color filtration in a single layer, manufactured by forming a resin layer, patterning it, and depositing a conductive material with strategically arranged holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate polarizer and color filter elements are used, then each element can perform its specific function independently, but the overall device thickness increases and structural complexity increases
Solution Approach 1:
The patent combines the polarizer and color filter into a single integrated element. The conductive material layer serves dual functions: as a wire grid polarizer when configured with parallel patterns, and as a color filter when configured with hole patterns. This merging eliminates the need for separate polarizer and color filter layers, directly reducing device thickness while maintaining both polarization and color filtration functions.
Solution Approach 2:
The conductive material layer is designed to perform multiple functions depending on its configuration. By adjusting the pattern (parallel lines for polarization, holes for color filtration), the same material layer can function as either a polarizer or a color filter, or both simultaneously. This multi-functionality allows a single element to replace what would traditionally require separate components.
2Reliability
If separate polarizer and color filter elements are used, then each element can be optimized independently, but the manufacturing process becomes more complex
Solution Approach 1:
The patent merges the manufacturing processes for polarizers and color filters into a single integrated process. The conductive material layer is deposited once, and then patterned according to the desired configuration. This eliminates the need for separate deposition and patterning processes that would be required for independent polarizer and color filter manufacturing, thereby simplifying the overall manufacturing process.
Solution Approach 2:
The patent utilizes parameter changes in the conductive material layer configuration to achieve different functions. By changing the pattern parameters (parallel lines vs. holes), the same base material and deposition process can produce either polarization or color filtration functionality, reducing manufacturing complexity while maintaining functional optimization.
3Length of stationary object
If a single integrated layer is used for both polarizer and color filter functions, then device thickness is reduced and manufacturing is simplified, but the structural design becomes more challenging
Solution Approach 1:
The patent applies local quality by creating different patterns in different regions of the conductive material layer. The wire grid polarizer region has parallel conductive patterns, while the color filter region has hole patterns. This localized differentiation allows each region to perform its specific function optimally within the integrated structure, managing design complexity through regional specialization.
Solution Approach 2:
The integrated conductive material layer is segmented into distinct functional regions: a polarizer region with parallel wire patterns and a color filter region with hole patterns. This segmentation allows the design to manage complexity by dividing the single layer into functionally distinct zones, each optimized for its specific purpose while remaining part of the same integrated structure.
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 integration results in a thinner display device with improved luminance and polarization performance, while also simplifying the manufacturing process and reducing the overall thickness of the display device.
Implementation Method 1
a polarizer region having a plurality of conductive wire patterns formed along an edge of the conductive material
Implementation Method 2
a color filter region having a plurality of holes formed in a pattern across the color filter region
Data Source
AI summary
Provided are color filter-integrated polarizer and method of manufacturing a color filter-integrated polarizer. A color filter-integrated polarizer includes a conductive material disposed on a substrate. The conductive material includes a polarizer region which comprises a plurality of parallel conductive wire patterns and a color filter region which comprises a plurality of holes arranged in a pattern.