Display Panel Interference Layer for Low-Glare Color Mirrors
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Solution Overview
Problem
Mirror display devices using metal reflection layers suffer from high light reflectivity, leading to glare and a single-colored mirror surface, which can cause a dazzling effect.
Innovation Solution
A display panel design incorporating a substrate, a light-emitting structure layer, a specular reflection layer, and an interference adjustment layer that allows for destructive interference of light colors to form a set color mirror display, reducing glare and enabling multiple color options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a metal reflection layer is used in mirror display devices, then high light reflectivity is achieved, but glare and single-colored mirror surface occur causing dazzling effect
Solution Approach 1:
The reflection layer is segmented into multiple sub-reflectors arranged in an array, each sub-reflector having different geometric parameters (depth, width, spacing) to selectively reflect different wavelengths. This segmentation allows the mirror surface to reflect multiple colors rather than a single color, reducing the dazzling effect while maintaining overall reflectivity.
Solution Approach 2:
Different regions of the reflection layer have locally optimized properties - sub-reflectors at different positions or with different characteristics reflect specific wavelength bands. This local quality variation enables selective spectral reflection, creating a multi-colored mirror effect that reduces glare while preserving necessary reflectivity for mirror function.
2Illumination intensity
If a metal reflection layer is used, then high light reflectivity is achieved, but the mirror surface appears single-colored
Solution Approach 1:
The reflection layer is divided into multiple sub-reflectors with different geometric parameters, where each sub-reflector is responsible for reflecting a specific wavelength range. This segmentation enables the mirror surface to display multiple colors simultaneously, enhancing color variety while maintaining high overall reflectivity through the collective action of all sub-reflectors.
Solution Approach 2:
The reflection layer employs a composite structure of multiple sub-reflectors with different materials or geometric configurations, each contributing to reflection of specific wavelengths. This composite approach enables broad-spectrum reflection with spectral selectivity, achieving both high reflectivity and multi-color capability.
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 design effectively reduces light intensity and glare while allowing for a dark-colored mirror surface, enhancing the aesthetic appeal and functionality of the display panel.
Implementation Method 1
The interference adjustment layer is configured such that lights of some colors interfere destructively to form a mirror display of a set color
Implementation Method 2
a specular reflection layer located on a side of the light-emitting structure layer away from the substrate
Data Source
Figure 1~2
Figure 3~5
Figure 6A~6B
AI summary
A display panel, comprising a substrate, a light-emitting structure layer, a specular reflection layer, and an interference adjustment layer. The light-emitting structure layer is located on one side of the substrate; the light-emitting structure layer comprises a plurality of light-emitting regions and non-light-emitting regions that make the plurality of light-emitting regions spaced apart from each other; the specular reflection layer is located on the side of the light-emitting structure layer distant from the substrate; the specular reflection layer at least covers the non-light-emitting regions; the interference adjustment layer is located on the side of the specular reflection layer distant from the light-emitting structure layer; the interference adjustment layer is configured to cancel interference of light of some colors to form specular display of a set color.