Thin Glass Optical Laminate with Polarizing Plate
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Solution Overview
Problem
Conventional protective materials for display apparatuses face challenges in achieving a balance between weight reduction and improved impact resistance while maintaining optical functionality, with glass sheets being heavy and plastic sheets lacking sufficient hardness and impact resistance.
Innovation Solution
An optical laminate comprising a thin glass with a thickness of 100 µm or less, a polarizing plate including a polarizer and a protective resin film that absorbs ultraviolet rays, and an adhesion layer, which provides a lightweight and high-hardness solution with enhanced impact resistance by effectively distributing impact across the polarizing plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a liquid crystal display device uses a single polarizing plate, then the device structure is simple, but the viewing angle characteristics and contrast ratio are insufficient
Solution Approach 1:
The single polarizing plate is segmented into two distinct polarizing plates with different transmission axes orientations. The first polarizing plate has its transmission axis in the same direction as the liquid crystal director, while the second polarizing plate has its transmission axis perpendicular to the liquid crystal director. This segmentation resolves the contradiction by providing improved viewing angle characteristics and contrast ratio while maintaining reasonable structural complexity.
Solution Approach 2:
The invention introduces a new dimensional aspect by orienting the transmission axes of the two polarizing plates in different directions relative to the liquid crystal director. This dimensional change in the orientation space allows the system to achieve superior viewing angle characteristics and contrast ratio without excessively complicating the overall device structure.
2Device complexity
If a liquid crystal display device uses a single polarizing plate, then the device structure is simple, but the response speed is slow
Solution Approach 1:
The single polarizing plate is divided into two polarizing plates with different orientations, creating distinct optical pathways that accelerate the response speed of the liquid crystal display device while keeping the structural complexity manageable.
Solution Approach 2:
By introducing different orientation dimensions for the two polarizing plates, the system achieves faster response speed through enhanced optical modulation capabilities without proportionally increasing structural complexity.
3Device complexity
If a liquid crystal display device uses a single polarizing plate, then the device structure is simple, but the liquid crystal molecules cannot be oriented uniformly
Solution Approach 1:
The single polarizing plate is segmented into two polarizing plates with different transmission axis orientations. The first polarizing plate orients liquid crystal molecules in the same direction as the director, while the second polarizing plate orients them perpendicular to the director, achieving uniform molecular orientation and enhanced composition stability.
Solution Approach 2:
The invention introduces dimensional diversity in the orientation of transmission axes, allowing liquid crystal molecules to be uniformly oriented through multiple directional components, thereby stabilizing the composition without excessive structural complexity.
4Device complexity
If a liquid crystal display device uses a single polarizing plate, then the device structure is simple, but the color display properties are insufficient
Solution Approach 1:
The single polarizing plate is divided into two polarizing plates with different orientations, creating enhanced color display properties through differential optical modulation while maintaining reasonable structural complexity.
Solution Approach 2:
By introducing different orientation dimensions for the two polarizing plates, the system achieves superior color display properties through expanded optical modulation capabilities without proportionally increasing structural complexity.
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 optical laminate achieves a reduction in weight and improvement in impact resistance, offering a flexible and handleable solution suitable for display apparatuses while maintaining polarization functionality and protecting the polarizer from deterioration.
Implementation Method 1
a first polarizing plate having a transmission axis in the same direction as a liquid crystal director and a second polarizing plate having a transmission axis perpendicular to the liquid crystal director
Data Source
Figure 1
AI summary
Provided is an optical laminate capable of contributing to reduction in weight and improvement in impact resistance of a display apparatus. The optical laminate includes a thin glass having a thickness of 100 µm or less and a polarizing plate arranged on one side of the thin glass, in which the polarizing plate includes a polarizer and a protective film arranged on a surface of the polarizer on a thin glass side. In one embodiment, the optical laminate of the present invention further includes an adhesion layer between the thin glass and the polarizing plate.