Display Panel Hole Routing With Overlapped Gate and Data Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels with holes, such as those accommodating camera modules, experience dead space issues due to the curvature or bending of gate and source-drain lines, which affects the efficiency and layout of the display apparatus.
Innovation Solution
The display panel incorporates multiple gate layers and source-drain layers with patterns that are curved or bent along the hole's periphery, allowing these layers to overlap in the thickness direction within the hole surrounding area, thereby reducing dead space by optimizing the layout and minimizing gaps between lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gate lines and data lines are curved or bent to detour the hole, then the lines can accommodate the hole structure, but dead space is generated adjacent to the hole surrounding area
Solution Approach 1:
The patent utilizes the thickness direction (vertical dimension) by overlapping gate patterns and source-drain patterns in the hole surrounding area. This allows lines to occupy the same planar space at different vertical levels, effectively converting a 2D routing problem into a 3D solution and reducing dead space in the planar view.
Solution Approach 2:
The patent embeds multiple conductive patterns within each other in the thickness direction. Gate patterns from different gate layers are nested with source-drain patterns, creating a compact structure where multiple functional elements occupy overlapping spatial regions, thereby minimizing the overall footprint and reducing dead space.
2Area of stationary object
If gate patterns and source-drain patterns are overlapped in the thickness direction in the hole surrounding area, then dead space is reduced, but layer complexity increases
Solution Approach 1:
The patent divides the gate structure into multiple discrete gate layers (first gate layer, second gate layer, third gate layer), each with its own gate insulating layer. This segmentation allows independent optimization of each layer's routing and enables selective overlapping in the hole surrounding area while maintaining manageable complexity through modular design.
Data Source
AI summary
A display panel includes two or more gate layers including a plurality of gate patterns extending in a first direction and one or more source-drain layers including a plurality of source-drain patterns extending in a second direction crossing the first direction. The gate patterns of the two or more gate layers are curved or bent along a hole surrounding area corresponding to a periphery of a hole in an active area. The source-drain patterns of the one or more source-drain layers are curved or bent along the hole surrounding area. The gate patterns of at least one of the two or more gate layers overlap the source-drain patterns of at least one of the one or more source-drain layers in a thickness direction of the display panel in the hole surrounding area.