Separator Pattern Blocks Sealant Diffusion in Display Devices
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Solution Overview
Problem
Display devices, such as liquid crystal displays, suffer from image quality degradation due to contamination from sealant compounds diffusing into the display area during substrate attachment.
Innovation Solution
A separator pattern made of an epoxy-based compound is used between the sealant pattern and the display area, chemically reacting with an amine-based compound in the sealant to prevent diffusion and maintain image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a sealant pattern including a polymer resin compound is used to attach the two substrates together, then the substrates can be effectively bonded, but the compound may diffuse into the display area and contaminate it, deteriorating image quality
Solution Approach 1:
A separator pattern is introduced as an intermediary layer between the sealant pattern and the display area. This separator pattern includes a compound that chemically reacts with the sealant compound to form a reaction product, creating a chemical barrier that prevents diffusion of the sealant compound into the display area while maintaining the bonding function of the sealant
Solution Approach 2:
The invention uses composite material structures where the separator pattern is formed by combining specific compounds (such as epoxy-based compounds or carboxylic acid compounds) that have chemical reactivity with the sealant compound. This creates a multi-layer composite structure with distinct functional properties: the sealant layer provides bonding strength while the separator layer provides chemical barrier functionality
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 chemical reaction between the epoxy-based separator pattern and the amine-based sealant compound effectively blocks contaminants, preventing image quality deterioration and ensuring high-quality images in display devices.
Implementation Method 1
a separator pattern arranged on one of the first substrate and the second substrate and between the sealant pattern and the display area, the separator pattern including a second compound to chemically react with the first compound to prevent diffusion of the first compound into the display area
Data Source
AI summary
Disclosed is a display device. The display device includes first and second substrates facing each other, a sealant pattern including a first compound attaching the first and the second substrates together, and a separator pattern within the sealant pattern. The separator pattern includes a second compound chemically reacting with the first compound to block the diffusion of the first compound.