Array Substrate Conducting Wires Prevent Static Discharge
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Solution Overview
Problem
In array substrate assemblies, the overlapping orthogonal projections of wirings on a substrate lead to static electricity accumulation and electrostatic discharge due to long wirings, despite the presence of insulating layers.
Innovation Solution
The array substrate assembly features conducting wires with discontinuous segments and connection parts that electrically connect adjacent segments, along with via holes to facilitate electrical connections, preventing static electricity accumulation and discharge by ensuring that the orthogonal projections of the wires do not overlap continuously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If long wirings are used in array substrate assembly, then electrical connectivity is achieved, but static electricity accumulation and electrostatic discharge occur
Solution Approach 1:
The patent divides long conducting wires into multiple discontinuous conducting segments. Each segment is electrically isolated from adjacent segments by insulating layers, preventing continuous static electricity accumulation along the wire length. The segments are selectively connected through via holes to maintain necessary electrical connectivity while breaking the continuous path that causes ESD
Solution Approach 2:
Insulating layers are introduced as intermediary materials between adjacent conducting segments and between overlapping wirings. These insulating layers act as mediators that prevent direct electrical contact and static charge transfer, thereby eliminating the ESD pathway while allowing the wiring structure to maintain its functional connectivity through controlled via connections
2Reliability
If insulating layers are formed between wirings, then electrical isolation is achieved, but static electricity still accumulates on long wirings
Solution Approach 1:
The conducting wires are segmented into multiple discrete sections separated by insulating layers. This segmentation prevents the formation of long continuous conducting paths that would otherwise accumulate static electricity, even though insulating layers are present between overlapping regions
3Object-affected harmful factors
If conducting wires are made discontinuous to prevent static electricity, then electrostatic discharge is reduced, but electrical connectivity may be compromised
Solution Approach 1:
The conducting wires are divided into segments that are discontinuous in the planar wiring layers, which prevents static electricity accumulation. However, selective via holes are created to establish electrical connections between specific segments when needed, thereby maintaining functional connectivity while preserving the ESD protection benefits of discontinuity
Solution Approach 2:
The patent transitions the electrical connection from a two-dimensional planar wiring structure to a three-dimensional structure by introducing via holes that penetrate through insulating layers. This dimensional change allows segments to be electrically connected in the vertical dimension while remaining discontinuous in the horizontal plane, simultaneously achieving both ESD protection and electrical connectivity
Data Source
AI summary
The present disclosure relates to an array substrate assembly, a method of manufacturing the array substrate assembly, a display panel and a display apparatus. An array substrate assembly includes: a substrate; a first conducting wire on the substrate; a first insulating layer on the first conducting wire; a second conducting wire on the first insulating layer, wherein orthogonal projections of the first conducting wire and the second conducting wire on the substrate at least partly overlap, and at least one of the first conducting wire and the second conducting wire is constituted by a plurality of conducting segments arranged discontinuously; and a connection part configured to electrically connect adjacent ones of the conducting segments of the first conducting wire or the second conducting wire.