Color Conversion Film Composition for Enhanced Solvent and Light Resistance
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Solution Overview
Problem
Current color conversion films in liquid crystal display devices lack excellent solvent resistance and light resistance, which are essential for maintaining performance over time.
Innovation Solution
A composition for a color conversion film incorporating an organic light-emitting material that emits light with a peak wavelength of 500 nm to 580 nm or 580 nm to 750 nm, combined with a thermocurable or photocurable compound, and a polymerization initiator, forming a crosslinking structure for enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional color conversion film is used, then the display device can be manufactured, but the solvent resistance and light resistance are insufficient
Solution Approach 1:
The patent uses composite materials by combining organic light-emitting materials with specific binder resins (acrylic resin, styrene resin, or polyvinyl chloride resin) in defined weight ratios. This composite structure provides both the required optical conversion function and improved solvent/light resistance without requiring entirely new manufacturing processes.
Solution Approach 2:
The patent improves solvent and light resistance by changing the chemical composition parameters of the color conversion film - specifically by controlling the types and ratios of binder resins used. This allows maintaining conventional manufacturing methods while achieving enhanced durability through material parameter optimization.
2Reliability
If the color conversion film uses organic light-emitting materials with specific binder resins, then the solvent resistance improves, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise parameter ranges for binder resin composition (acrylic resin 30-70 wt%, styrene resin 10-40 wt%, polyvinyl chloride resin 5-20 wt%) to achieve optimal solvent resistance. These defined parameter ranges balance performance requirements with manufacturing feasibility.
Solution Approach 2:
The patent applies different binder resin compositions to different functional requirements within the color conversion film, optimizing the resin blend for both solvent resistance and manufacturing processability in specific regions or layers of the film structure.
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 provides a color conversion film with improved solvent resistance and light resistance, ensuring better durability and performance in liquid crystal display devices.
Implementation Method 1
an organic light-emitting material which emits, by an excitation light, light having a longer wavelength than the excitation light
Implementation Method 2
at least one of a thermocurable compound or a photocurable compound
Implementation Method 3
a polymerization initiator
Data Source
AI summary
Provided are a composition for a color conversion film, containing an organic light-emitting material which emits, by an excitation light, light having a longer wavelength than the excitation light, and at least one of a thermocurable compound or a photocurable compound; a color conversion film; a method for manufacturing a color conversion film; a backlight unit including the color conversion film; and a liquid crystal display device including the backlight unit.