Display Device Conductor Alignment via Insulating Layer Openings
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Solution Overview
Problem
Existing display devices face defects around openings in insulating layers for electrical connections between conductors on different conductive layers, leading to potential short-circuits and reliability issues.
Innovation Solution
The design includes a substrate with conductors and insulating layers, where the insulating layers have strategically positioned openings to facilitate electrical connections between conductors, with extensions and edges aligned to prevent peeling and ensure secure connections, using organic or inorganic materials for the insulating layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If openings are formed in insulating layers to electrically connect conductors on different conductive layers, then electrical connectivity is achieved, but defects and short-circuits may occur around the openings
Solution Approach 1:
The patent applies preliminary action by extending the second conductor before forming the openings, so that the extension overlaps with the first conductor. This pre-positioning ensures proper alignment and reduces the risk of misalignment defects during subsequent opening formation processes, thereby preventing potential short-circuits and improving connection reliability.
2Stability of the object's composition
If extensions of conductors are aligned to overlap with edges of other conductors, then peeling is prevented and connection stability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the second conductor with the first conductor by making the second conductor extend and overlap with the first conductor. This merging creates a more stable, integrated connection structure that resists peeling forces, while the overlap region provides mechanical reinforcement that simplifies the overall connection design compared to separate, precisely aligned features.
Data Source
AI summary
The present disclosure relates to a display device that includes: a first conductor provided on a substrate; a first insulating layer provided on the first conductor; a second conductor provided on the first insulating layer; a second insulating layer provided on the second conductor; and a third conductor provided on the second insulating layer, wherein, the first conductor has a first edge and a second edge extending in different directions, the second conductor includes a first extension and a second extension extending in different directions, the first insulating layer and the second insulating layer collectively include a first opening provided on the first conductor and the second conductor, the third conductor is electrically connected to the first conductor and the second conductor through the first opening, the first extension extends parallel to the first edge, and the second extension extends parallel to and overlaps with the second edge.