Low-Refractive Index Layer with Hollow Particles for Display Reliability
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Solution Overview
Problem
Existing display devices face challenges in achieving improved reliability and optical characteristics, particularly in maintaining low-refractive index characteristics while enhancing durability.
Innovation Solution
Incorporating a low-refractive index layer with hollow particles of different sizes, where the first hollow particle has a diameter of 80 nm to 120 nm and the second hollow particle has a diameter of 30 nm to 70 nm, dispersed in a matrix part, to provide a refractive index range of 1 to 1.2, thereby improving strength and optical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a low-refractive index layer is used to improve light efficiency, then optical characteristics are improved, but durability and reliability deteriorate
Solution Approach 1:
The patent uses a composite low-refractive index layer containing hollow particles (such as hollow glass beads or hollow resin particles) dispersed in a resin matrix. This composite structure achieves both low refractive index (improving light efficiency) and high durability (improving reliability) simultaneously, resolving the technical contradiction between optical performance and mechanical strength.
2Illumination intensity
If hollow particles are added to reduce refractive index, then optical characteristics are improved, but structural strength deteriorates
Solution Approach 1:
The patent optimizes parameters including the size distribution of hollow particles (using a mixture of different particle sizes), the weight ratio of hollow particles to resin (typically 10-70 wt%), and the shell thickness of hollow particles. These parameter adjustments allow achieving low refractive index while maintaining adequate structural strength.
Solution Approach 2:
The low-refractive index layer is formulated as a composite material with hollow particles embedded in a resin matrix, where the resin provides structural strength and the hollow particles provide low refractive index. This composite approach balances optical performance and mechanical strength.
3Illumination intensity
If hollow particles of different sizes are used to improve optical characteristics, then light efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent specifies optimal parameter ranges for hollow particle sizes (e.g., combining particles of 10-50 μm and 50-100 μm) and their weight ratios to achieve uniform dispersion and optimal optical performance. These standardized parameter specifications simplify the manufacturing process while maintaining high light efficiency.
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 enhances the display device's reliability and optical characteristics by maintaining a low-refractive index while increasing durability, reducing the occurrence of defects such as rupture and scattering, and improving total reflection efficiency.
Implementation Method 1
an optical member including: a color filter member including quantum dots; and a low-refractive index layer below the color filter member and comprising a first hollow particle and a second hollow particle
Implementation Method 2
improving total reflection efficiency
Data Source
AI summary
Provided is an optical member. The optical member includes a color filter member including quantum dots and a low-refractive index layer below the color filter member and including a first hollow particle and a second hollow particle. The first hollow particle may have a particle size different from a particle size of the second hollow particle.