Matrix Lead Terminal Arrangement for Touch Display Panel Wiring
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Solution Overview
Problem
The existing designs for touch display panels require complex wiring configurations that increase manufacturing costs and complicate the process, as they often necessitate additional metal layers and space to prevent lead intersections between data and touch signal lines.
Innovation Solution
A touch display panel design where lead terminals for data and touch signal lines are arranged in a matrix pattern, allowing them to be connected in the same layer without intersecting, simplifying the manufacturing process and reducing production costs by eliminating the need for additional metal layers and space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lead terminals for data lines and touch signal lines are arranged separately in different zones, then lead intersections can be avoided, but the wiring becomes complex and additional metal layers are required
Solution Approach 1:
The patent merges the arrangement of lead terminals for data lines and touch signal lines into a single matrix array, eliminating the need for separate zoned arrangements. This combining approach allows both types of leads to be connected in the same layer without intersections, reducing wiring complexity and eliminating additional metal layer requirements while maintaining connection reliability
Solution Approach 2:
The patent transitions from a two-dimensional zoned planar arrangement to a three-dimensional matrix configuration with row and column dimensions. This dimensional change enables lead terminals to be interconnected through multiple pathways (row direction and column direction), allowing data line leads and touch signal line leads to reach their destinations without intersecting in the same layer
2Reliability
If additional metal layers are added to prevent lead intersections, then lead intersections are avoided, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple lead connection functions into a single metal layer by using the matrix arrangement of lead terminals. This eliminates the need for additional metal layers to prevent intersections, as the matrix configuration with row and column connectivity allows all leads to be routed without intersections in the same layer, thereby reducing manufacturing cost
3Reliability
If additional space is allocated for lead routing, then lead intersections are prevented, but the display area is reduced
Solution Approach 1:
The patent uses the matrix arrangement with row and column dimensions to route leads efficiently. The lead terminals are positioned at intersections of rows and columns, allowing leads to connect through multiple directions without requiring additional lateral space. This dimensional routing approach prevents lead intersections while minimizing the space occupied by lead routing structures
Data Source
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AI summary
An embodiment of the present disclosure discloses a touch display panel and a display device. The touch display panel includes a plurality of touch signal lines and a plurality of data lines disposed in a display area, and a plurality of lead terminals disposed in a peripheral area. The plurality of lead terminals includes a plurality of first terminals respectively connected to the plurality of data lines and a plurality of second terminals respectively connected to the plurality of touch signal lines. The plurality of lead terminals are arranged in a matrix. Every seven or four lead terminals of the plurality of lead terminals are selected as one lead terminal group, and a lead terminal group includes one second lead terminal. The touch display panel and the display device according to the embodiments of the present disclosure can realize that the leads corresponding to the data signal lines and the leads corresponding to the touch signal lines prepared wirings in a same layer, thereby reducing production cost and improving the production yield.