Resin Composition for Flexible Display Pixel Separation
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Solution Overview
Problem
Current display technologies, particularly organic light emitting display devices, face challenges in achieving a high anti-reflection effect due to the limitations of polarizing films, which are not suitable for flexible devices, and require effective methods to reduce reflectance at specific wavelengths for improved visibility.
Innovation Solution
A resin composition containing a specific repeating unit, reactive unsaturated compounds, initiators, and pigments is used to form a pixel separation unit with enhanced absorbance at 550 nm, improving visibility and image quality by forming a photosensitive resin composition that includes a binder resin with a particular chemical structure, reactive unsaturated compounds, initiators, and pigments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a polarizing film is used to block light in organic light emitting display devices, then light blocking performance is improved, but flexibility is lost due to lack of bending properties
Solution Approach 1:
The patent changes the material parameter from rigid polarizing film to resin composition with specific repeating units that enable flexibility while maintaining light blocking capability through controlled molecular structure and pigment dispersion
Solution Approach 2:
The patent creates a composite material system combining resin with specific repeating units (containing aromatic rings, heterocyclic groups, or fused rings) with light-blocking pigments, achieving both flexibility and optical performance
2Adaptability or versatility
If inorganic film or color filter is used to replace polarizing film, then flexibility is improved, but anti-reflection effect is insufficient
Solution Approach 1:
The patent optimizes the optical parameters of the resin composition by controlling the chemical structure of repeating units and pigment concentration to achieve both flexibility and desired anti-reflection properties
Solution Approach 2:
The patent applies local quality by incorporating light-blocking pigments specifically at regions where anti-reflection is needed, while maintaining overall flexibility through the resin matrix structure
3Ease of manufacture
If carbon black or organic pigments are used in light-shielding layer, then color representation is improved, but reflectance at 550 nm wavelength is not sufficiently reduced
Solution Approach 1:
The patent changes the optical parameters of the light-shielding layer by selecting specific pigments and controlling their dispersion in the resin to achieve reduced reflectance at 550 nm while maintaining color representation
Solution Approach 2:
The patent uses the resin composition with specific repeating units as a template that guides pigment dispersion and optical property optimization to achieve target reflectance reduction
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 resin composition effectively increases absorbance at 550 nm, enhancing visibility and image quality by forming a pixel separation unit with improved light-blocking properties, suitable for flexible display devices.
Implementation Method 1
the resin composition effectively increases absorbance at 550 nm, enhancing visibility and image quality
Data Source
AI summary
Provided are a display device including a resin containing a repeating unit represented by chemical formula (1), a resin composition comprising the resin, and a pixel separation unit formed of the resin composition, in which the display device is a display device including a first electrode formed on a substrate, a pixel separation unit formed on the first electrode to partially expose the first electrode, and a second electrode installed to face the first electrode, and the pixel separation unit has an absorbance of 0.5/μm or more at a wavelength of 550 nm.