Display Panel Fanout Wiring Layout for Narrow Borders
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Solution Overview
Problem
Current display technologies, such as LCDs and OLEDs, require significant non-display areas for signal transmission lines, leading to large borders and hindering the achievement of narrow border designs.
Innovation Solution
The display panel design includes a fanout line module with first and second signal lines in separate wiring areas, where the first signal lines connect the driving chip to data lines and the second signal lines connect it to gate lines, both being electrically insulated and strategically positioned to minimize border size, with specific dimensions and spacings optimized for efficient layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data signal transmission lines are disposed on an upper end of the display device and control signal transmission lines are disposed on both sides of the display device, then signal transmission is achieved, but the border of the display device becomes too large
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement of transmission lines to a three-dimensional stacked configuration. Data signal transmission lines and control signal transmission lines are arranged in different layers (first wiring area and second wiring area) vertically above each other, allowing both signal types to coexist in a compact space without requiring large lateral borders.
Solution Approach 2:
The patent implements a nested arrangement where the second wiring area containing control signal transmission lines is positioned directly above the first wiring area containing data signal transmission lines. This vertical nesting allows the control signal lines to be embedded within the spatial envelope of the data signal lines, maximizing space utilization and minimizing border requirements.
2Area of stationary object
If transmission lines are arranged on multiple sides of the display device, then signal routing is achieved, but the non-display area increases
Solution Approach 1:
The patent moves signal transmission from a lateral two-dimensional layout to a vertical three-dimensional stack. By placing data signal transmission lines in a first wiring area and control signal transmission lines in a second wiring area above them, the design achieves reliable signal transmission while confining all transmission lines to a compact vertical column, thereby minimizing the non-display area.
Solution Approach 2:
The patent merges the routing paths of data signal transmission lines and control signal transmission lines into a single vertical column structure. Both types of lines share the same spatial column but occupy different vertical layers, eliminating the need for separate lateral routing paths and reducing the total non-display area required for signal transmission.
Data Source
AI summary
A display panel and a manufacturing method of a display panel are provided. The display panel includes a display area and a non-display area disposed on one side of the display area. A driving chip and a fanout wiring area are disposed in the non-display area. A fanout line module is disposed in the fanout wiring area. The fanout line module includes a first wiring area and a second wiring area. A first signal line connecting the data line is disposed in the first wiring area. A second signal line connecting the gate line and another first signal line connecting the data line are disposed in the second wiring area.