Display Substrate With Trench-Overlapping Barrier For Static Discharge
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Solution Overview
Problem
Plastic substrates in display devices are susceptible to static electricity, leading to potential deterioration in the reliability of the display device's operation due to electromagnetic interference.
Innovation Solution
A substrate design featuring a first and second base layer with an adhesive layer containing trenches and a barrier that overlaps with the trenches, connected to a ground layer, providing a conductive pathway for static electricity discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic substrate is used in a display device, then the device can be manufactured with flexibility and cost-effectiveness, but the substrate becomes more susceptible to static electricity and electromagnetic interference
Solution Approach 1:
The patent applies composite materials by combining the plastic substrate with a conductive adhesive layer containing metal particles and a barrier layer. This composite structure maintains the manufacturing advantages of plastic while adding static electricity shielding capabilities through the conductive and barrier components, directly resolving the contradiction between ease of manufacture and static electricity resistance.
Solution Approach 2:
The conductive adhesive layer acts as an intermediary between the plastic substrate and the barrier layer, providing a conductive pathway that grounds static electricity. This mediator component enables the plastic substrate to achieve static electricity resistance without compromising its manufacturing flexibility, as the adhesive layer integrates the conductive function into the existing substrate structure.
2Reliability
If a barrier layer is added to shield static electricity, then the reliability of the display device improves, but the device complexity increases
Solution Approach 1:
The patent merges the barrier layer with the adhesive layer structure, where the barrier layer is positioned to overlap with the adhesive layer rather than being a completely separate component. This merging approach provides effective static electricity shielding while reducing overall device complexity by integrating multiple functions into a combined layer structure.
Solution Approach 2:
The barrier layer is arranged in a specific spatial dimension, overlapping with the adhesive layer in a planar configuration rather than adding vertical complexity. This dimensional arrangement provides comprehensive shielding coverage while maintaining a relatively simple overall structure, as the barrier operates in the same plane as the adhesive layer rather than requiring additional three-dimensional complexity.
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 design effectively shields static electricity, stabilizing the substrate's potential and enhancing the reliability of the display device's operation.
Implementation Method 1
a barrier overlapping with the at least one trench... connected to a ground layer, providing a conductive pathway for static electricity discharge
Implementation Method 2
an adhesive layer on the first base layer, the adhesive layer including at least one trench... effectively shields static electricity, stabilizing the substrate's potential
Data Source
AI summary
A substrate including: a first base layer; an adhesive layer on the first base layer, the adhesive layer including at least one trench; a second base layer on the adhesive layer; and a barrier overlapping with the at least one trench, the at least one trench penetrating the adhesive layer.