Display Panel Via Layout to Prevent Connecting Line Short Circuits
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Solution Overview
Problem
Current display panel technologies face a risk of short circuits between third connecting lines and first connecting lines due to overlapping via holes in the insulation layers, which can lead to electrical failures.
Innovation Solution
The display panel design includes a first insulation layer between first and second connecting lines, with second holes extending through both layers, ensuring that these holes do not overlap with first connecting lines in a top view, and third connecting lines are electrically connected via these holes without overlapping, using a configuration that includes a second body and additional trapezoidal portions to maintain conductivity even if the connecting portion is damaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If via holes are used to electrically connect third connecting lines to first and second connecting lines, then electrical connectivity is achieved, but the risk of short circuits increases due to overlapping via holes with first connecting lines
Solution Approach 1:
The patent extracts the harmful overlapping portion by designing the second via hole to be positioned away from the first connecting line in the top view. This separation removes the potential short circuit path while maintaining the necessary electrical connectivity through the via holes to the second connecting line.
Solution Approach 2:
The patent resolves the contradiction by considering the three-dimensional positioning of via holes relative to the planar connecting lines. By controlling the horizontal position of the second via hole in the top view to avoid overlapping with the first connecting line, the design achieves safe electrical connection without short circuit risk.
2Reliability
If third connecting lines are positioned to connect to both first and second connecting lines through via holes, then electrical connection is established, but the probability of electrical damage increases due to potential overlapping with first connecting lines
Solution Approach 1:
The harmful overlapping configuration is extracted and eliminated by positioning the second via hole horizontally away from the first connecting line in the top view, thereby removing the source of potential electrical damage while preserving the electrical connection function.
Solution Approach 2:
The second connecting line acts as an intermediary element that receives electrical connections from both the first connecting line (through first via holes) and the third connecting line (through second via holes), enabling electrical connectivity without direct contact between third and first connecting lines that could cause short circuits.
3Reliability
If via holes extend through insulation layers to provide electrical connections, then conductivity is achieved, but the risk of short circuits increases due to potential overlap with first connecting lines in top view
Solution Approach 1:
The harmful overlapping configuration is extracted by designing the second via hole to be positioned away from the first connecting line in the top view, removing the short circuit risk while maintaining the conductivity function of the via holes through the insulation layers.
Solution Approach 2:
The patent resolves the contradiction by controlling the horizontal position of the second via hole in the top view to avoid overlapping with the first connecting line, achieving safe electrical connection through three-dimensional positioning while maintaining conductivity.
Data Source
AI summary
Embodiments of the present disclosure provide a display panel comprising a plurality of first connecting lines and a plurality of second connecting lines which are cross-arranged, a first insulation layer, a second insulation layer defining first holes extending through the first insulation layer and the second insulation layer and second holes extending through the second insulation layer, and a plurality of third connecting lines, wherein each of the plurality of the third connecting lines is electrically connected to a corresponding one of the plurality of the first connecting lines via a corresponding one of the first hole and is electrically connected to a corresponding one of the plurality of the second connecting lines via a corresponding one of the second hole, and each of the second holes does not overlap the plurality of the first connecting lines in a top view.