Staggered Connection Pads for Static Protection in Display Arrays
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Solution Overview
Problem
Display device connection pads are prone to breakdown due to static electricity when arranged closely together, leading to reliability issues and potential damage.
Innovation Solution
The array substrate design includes a non-display region with connection pads arranged such that adjacent pads do not fully or partially overlap in a specific direction, allowing for a small gap between them, and incorporates antistatic mechanisms, alignment marks, and testing mechanisms in non-wiring regions to prevent static electricity damage, while maintaining a narrow bezel and efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If connection pads are arranged closely together to reduce arrangement space, then area utilization is improved, but reliability deteriorates due to static electricity breakdown
Solution Approach 1:
The patent transitions from one-dimensional linear arrangement of connection pads to two-dimensional array arrangement with staggered rows. Connection pads in odd-numbered rows are offset from those in even-numbered rows, creating a grid pattern that reduces the gap between adjacent pads while preventing static electricity breakdown through non-linear spatial distribution.
Solution Approach 2:
The patent employs asymmetric arrangement where odd-numbered connection pads and even-numbered connection pads are positioned at different lateral locations. This asymmetric staggered layout breaks the symmetry of traditional linear arrangements, allowing reduced spacing while maintaining reliability by preventing direct alignment that would create static electricity pathways.
2Ease of manufacture
If connection pads are arranged in a line parallel to lateral edge, then ease of manufacture is improved, but area utilization deteriorates
Solution Approach 1:
The patent extends the connection pad arrangement from a single linear row to multiple rows arranged in a two-dimensional array. This multi-row configuration充分利用 the available area in the connection region, significantly improving space utilization while maintaining manufacturability through systematic positioning patterns.
Solution Approach 2:
The patent divides the connection pads into multiple groups arranged in separate rows, with odd-numbered rows and even-numbered rows having different lateral positions. This segmentation into staggered rows allows efficient packing of connection pads within the connection region, maximizing area utilization while simplifying the routing of corresponding signal lines.
Data Source
AI summary
An array substrate and a display device are provided. The array substrate includes a display region and a non-display region surrounding the display region. The non-display region includes a connection region where a plurality of connection pads is arranged, and for at least parts of the connection pads, two adjacent connection pads are not overlap each other or partially overlap each other in a first direction.