Composite Display Substrate for Low-Resistance Edge Reliability
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Solution Overview
Problem
The edge of high-thickness conductive layers in display substrates is prone to fracture or breakdown, leading to uneven display brightness due to voltage or current attenuation.
Innovation Solution
A display substrate with a composite structure layer comprising a conductive layer and a colloidal medium layer, where the colloidal medium layer contains conductive particles deposited close to the conductive layer to form a conductive particle part, reducing the resistance of the conductive layer and minimizing the risk of fracture or breakdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the conductive layer is increased to reduce resistance, then the resistance decreases and voltage attenuation is reduced, but the edge of the conductive layer becomes prone to fracture or breakdown
Solution Approach 1:
The patent applies composite materials by combining a conductive layer with a colloidal medium layer containing conductive particles. This composite structure reduces resistance through the conductive particles while the colloidal medium provides mechanical support to prevent edge fracture, thus resolving the contradiction between resistance stability and edge strength.
Solution Approach 2:
The patent applies local quality by concentrating conductive particles specifically at the edges of the conductive layer where fracture is most likely to occur. This localized enhancement provides additional mechanical reinforcement at critical areas without increasing the overall thickness of the conductive layer, thereby preventing edge breakdown while maintaining low resistance.
2Illumination intensity
If the thickness of the conductive layer is increased to reduce resistance, then voltage attenuation is reduced and display brightness uniformity is improved, but the complexity of the structure increases
Solution Approach 1:
The patent uses composite materials consisting of a conductive layer and a colloidal medium layer with conductive particles. This composite approach reduces resistance and improves display brightness uniformity without requiring significant increases in overall structure thickness, thereby maintaining relatively simple device architecture while achieving the desired electrical performance.
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 increased thickness of the conductive layer reduces its resistance, preventing voltage or current attenuation and ensuring uniform display brightness, while the reduced height difference between the conductive layer and the conductive particle part minimizes the risk of edge fracture or breakdown.
Implementation Method 1
the colloidal medium layer comprises a plurality of conductive particles, and the plurality of conductive particles are located at a position of the colloidal medium layer close to the conductive layer to form a conductive particle part
Data Source
AI summary
The embodiment of the present application discloses a display substrate, a display panel and a manufacturing method of the display substrate. The display substrate comprises a base substrate and a composite structure layer. The composite structure layer comprises a conductive layer and a colloidal medium layer. The colloidal medium layer comprises a plurality of conductive particles. The plurality of conductive particles are located at a position of the colloidal medium layer close to the conductive layer to form a conductive particle part. The present application can reduce the height difference between the conductive layer and the edge of the conductive particle part, and reduce the risk of fracture or breakdown.