Polarizer Array Structure for High Alignment
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Solution Overview
Problem
Existing polarizers used in image display devices have limitations in achieving a high degree of alignment, which affects the performance and future expectations of these devices.
Innovation Solution
A polarizer formed from a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, with an array structure formed by the first and second dichroic materials, enhancing the degree of alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional polarizer structure is used, then the device is simple to manufacture, but the degree of alignment is insufficient
Solution Approach 1:
The polarizer is segmented into multiple functional layers including a liquid crystal layer, a first dichroic material layer, and a second dichroic material layer. Each layer serves a specific function in achieving high alignment, with the array structure dividing the dichroic materials into discrete positional arrangements that enhance alignment precision without requiring complete structural redesign
Solution Approach 2:
The invention uses a composite structure combining liquid crystal compounds with dichroic materials (such as iodine or organic coloring agents) in a polarizer-forming composition. This composite approach leverages the alignment properties of liquid crystals and the light-absorbing properties of dichroic materials to achieve high degree of alignment while maintaining manufacturing feasibility through established multi-layer fabrication processes
2Manufacturing precision
If iodine is used as dichroic material, then the polarization function is achieved, but the alignment degree is limited
Solution Approach 1:
The invention changes the material parameters by introducing organic coloring agents as alternative dichroic materials to iodine, and by adjusting the compositional ratios and structural parameters of the array. These parameter changes enable improved alignment degrees while maintaining compatibility with existing manufacturing processes for polarizer production
Solution Approach 2:
The liquid crystal compound acts as an intermediary medium between the dichroic materials and the substrate, facilitating the transfer and stabilization of alignment. The liquid crystal layer mediates the orientation of dichroic materials during the formation process, enabling higher alignment precision without significantly complicating the overall manufacturing procedure
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 proposed solution improves the degree of alignment in polarizers, leading to enhanced performance in image display devices and allowing for future performance improvements.
Implementation Method 1
a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material
Implementation Method 2
a first dichroic material, and a second dichroic material... an absolute value of a difference between a maximum absorption wavelength λ2 in an absorption spectrum of a film formed of a composition that contains the second dichroic material and the liquid crystal compound
Implementation Method 3
a polarizer-forming composition containing a polymer liquid crystal compound and a dichroic material
Data Source
AI summary
A polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.