Display Panel Hole Surround Layout with Vertical Line Overlap
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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 patterns, which affects the efficiency and layout of the display area.
Innovation Solution
The display panel incorporates multiple gate layers and source-drain layers with patterns that are curved or bent along the hole's perimeter, allowing these layers to overlap in the thickness direction within the hole's surrounding area, thereby reducing dead space by optimizing the layout and minimizing the horizontal interval between patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If gate lines and data lines are curved or bent to detour the hole, then the hole surrounding area can be utilized, but dead space is generated adjacent to the hole
Solution Approach 1:
The patent applies dimensionality change by stacking multiple gate layers and source-drain layers in the thickness direction (vertical dimension) to overlap patterns that would otherwise occupy horizontal space. This allows gate patterns and source-drain patterns to be positioned closer in the horizontal plane by utilizing the vertical stacking dimension, thereby reducing dead space around the hole while maintaining electrical functionality.
Solution Approach 2:
The patent implements nesting by placing multiple gate layers and source-drain layers within each other in the thickness direction. The first gate layer, second gate layer, and source-drain layers are nested vertically, with each layer contained within the structural envelope of the others, allowing compact arrangement around the hole without creating dead space.
2Area of stationary object
If multiple gate layers and source-drain layers are overlapped in the thickness direction, then dead space is reduced, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the gate structure into multiple discrete layers (first gate layer, second gate layer, third gate layer) and source-drain layers, each with specific functions. This segmentation allows independent optimization of each layer's position and function while collectively achieving dead space reduction, making the complex structure manageable and manufacturable.
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.