Polarizing Plate with Perpendicular Dichroic Dye for Side Light Absorption
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Solution Overview
Problem
Conventional polarizing plates fail to effectively absorb side light, which affects the display properties of image display devices such as smartphones and smart televisions.
Innovation Solution
A polarizing plate is manufactured using a base film coated with a dichroic dye in a discotic liquid crystal phase, perpendicularly oriented and cured, which absorbs side light while transmitting front light, thereby improving display properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional polarizing plates are used, then manufacturing is simple, but side light absorption is insufficient
Solution Approach 1:
The patent changes the molecular orientation parameter of the dichroic dye from parallel to perpendicular relative to the base film. This parameter change enables the polarizing plate to absorb side light effectively while maintaining a relatively simple structure, resolving the contradiction between side light absorption and device complexity.
Solution Approach 2:
The patent uses a composite structure combining a base film with a dichroic dye layer having discotic liquid crystal phase. This composite material approach achieves effective side light absorption through the specific molecular arrangement of the dichroic dye perpendicular to the base film, while keeping the overall device structure manageable.
2Reliability
If dichroic dye is perpendicularly oriented to absorb side light, then display properties improve, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes the phase transition properties of discotic liquid crystal phase dichroic dye. By controlling the phase transition during the coating and drying process, the dichroic dye molecules self-organize into a perpendicular orientation relative to the base film. This phase transition mechanism enables reliable display properties while reducing the need for complex external alignment equipment, thus lowering manufacturing precision requirements.
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 polarizing plate effectively absorbs side light, enhancing the display properties of display devices by aligning light penetration and absorption axes, resulting in improved visibility and reliability across varying environmental conditions.
Implementation Method 1
a polarizer including a dichroic dye formed on the base film, perpendicularly oriented, and having a discotic liquid crystal phase
Implementation Method 2
having a discotic liquid crystal phase
Data Source
AI summary
A polarizing plate includes a base film and a polarizer. The polarizer includes a dichroic dye formed on the base film, oriented perpendicular to a plane of the base film, and having a discotic liquid crystal phase.