Integrated Polarization Plate for LCD Luminance and Structural Integrity
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Solution Overview
Problem
Conventional liquid crystal displays face challenges in maintaining structural and environmental integrity, especially in large sizes and demanding environments, with issues such as distortion and non-compliance with avionics or military standards for luminance, viewing angle, and uniformity.
Innovation Solution
A polarization plate is introduced between the light source and the display panel, comprising a repolarization region and a prepolarization region, which diffuses and reorients light to enhance energy efficiency and structural robustness, while maintaining optical and physical characteristics suitable for large displays and harsh environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a pre-polarizing film is used to recycle unpassed light, then energy efficiency is improved, but structural integrity deteriorates in large displays and harsh environments
Solution Approach 1:
The patent combines the pre-polarizing film and rear polarizer into a single integrated polarization plate structure. This merging eliminates the air gap between separate components, providing mechanical support to the flexible film while maintaining its polarizing function. The integrated structure prevents film distortion and contact with other components in large displays and harsh environments, while still enabling light recycling for energy efficiency.
Solution Approach 2:
The polarization plate uses composite material construction with a substrate layer providing mechanical strength and a flexible film layer providing polarizing function. This composite structure allows the film to maintain structural integrity in large displays and harsh environments while preserving its ability to recycle light for energy efficiency.
2Reliability
If a pre-polarizing film is laminated to a rear polarizer, then structural integrity is improved, but optical and physical characteristics deteriorate
Solution Approach 1:
The patent merges the pre-polarizing film and rear polarizer into a single polarization plate with an air gap maintained between them, avoiding lamination. This approach provides structural support to the film while preserving optimal optical characteristics for light recycling and display performance, eliminating the need for lamination processes that could degrade optical properties.
3Illumination intensity
If display size increases, then luminance and viewing angle are improved, but structural integrity of the film deteriorates
Solution Approach 1:
The patent integrates the pre-polarizing film with the rear polarizer into a single polarization plate structure, providing mechanical support to the flexible film. This merged structure maintains structural integrity even in large display configurations, enabling the display to achieve high luminance and wide viewing angles without film distortion or failure.
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 polarization plate increases luminance and viewing angle, reduces size and thickness, and enhances structural integrity, making it suitable for avionics, military, and commercial applications while being simple and cost-effective to manufacture.
Implementation Method 1
The polarization plate increases luminance and viewing angle
Implementation Method 2
A polarization plate is introduced between the light source and the display panel, comprising a repolarization region and a prepolarization region, which diffuses and reorients light
Data Source
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AI summary
A polarization plate is provided for use between a light source and a display panel, where the light source is configured to emit light having a plurality of planes of polarization and the display panel is configured to have a predetermined polarization axis. The plate includes a repolarization region and a prepolarization region. The repolarization region is configured to diffuse and to depolarize or rotate at least one plane of polarization of the light passing therethrough. The prepolarization region is disposed adjacent to and in contact with the repolarization region. The prcpolarization region is configured to be substantially nonabsorbent, to allow passage of light having a plane of polarization that is substantially aligned with the predetermined polarization axis, and to prevent passage of light having a plane of polarization that is not substantially aligned with the predetermined polarization axis. In another embodiment, an interface is provided between the regions.