Circular Polarizer Hollow Structures for Display Reflection Reduction
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Solution Overview
Problem
Conventional organic light-emitting display panels face challenges in achieving both reflection reduction and a large viewing angle due to the trade-off between the size of the black matrix layer and pixel opening area.
Innovation Solution
Incorporating a circular polarizer with hollow structures that overlap light-emitting elements, which provides effective reflection reduction while maintaining a large viewing angle by replacing the traditional black matrix layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the size of the black matrix layer is increased to reduce reflection, then the reflection reduction effect is improved, but the pixel opening area and viewing angle are reduced
Solution Approach 1:
The circular polarizer is divided into multiple regions: a first region with hollow structures positioned over light-emitting elements to maintain viewing angle and light output, and a second region without hollow structures to provide reflection reduction. This segmentation allows different areas of the circular polarizer to perform different functions simultaneously.
Solution Approach 2:
Different regions of the circular polarizer are designed with different structures to achieve different local functions. The first region has hollow structures for light emission and viewing angle, while the second region has solid structure for reflection reduction, creating local quality variations that resolve the contradiction.
2Object-affected harmful factors
If the size of the black matrix layer is increased to reduce reflection, then the reflection reduction effect is improved, but the viewing angle is reduced
Solution Approach 1:
The circular polarizer is segmented into regions with different structures: hollow structures in the first region preserve light emission characteristics and viewing angle, while the solid second region provides reflection reduction, allowing the system to achieve both goals simultaneously.
Solution Approach 2:
The invention transitions from a uniform two-dimensional black matrix layer to a three-dimensional circular polarizer with hollow structures, adding vertical dimensionality that allows light to pass through while maintaining reflection reduction properties in specific regions.
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 solution effectively reduces reflectivity and enhances light-emitting efficiency, improving the display panel's performance in both reflection reduction and viewing angle requirements.
Implementation Method 1
a circular polarizer is disposed on one side of the multiple light-emitting elements facing away from the substrate
Implementation Method 2
The circular polarizer is provided with first hollow structures corresponding to at least part of the multiple light-emitting elements. The area where each first hollow structure is located overlaps a respective one of the at least part of the multiple light-emitting elements
Data Source
AI summary
Provided are a display panel, a manufacturing method thereof and a display device. The display panel includes a substrate, multiple light-emitting elements and a circular polarizer. The multiple light-emitting elements are disposed on one side of the substrate. The circular polarizer is disposed on one side of the multiple light-emitting elements facing away from the substrate. The circular polarizer is provided with first hollow structures corresponding to at least part of the multiple light-emitting elements. The area where each first hollow structure is located overlaps a respective one of the at least part of the multiple light-emitting elements.