Display Panel Connecting Electrodes Overlap Pixel Units
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Solution Overview
Problem
In micro-LED display technology, the large bezel size due to seams between tiled modules affects the display effect and user experience, especially when creating large-size displays, as existing methods for connecting signal lines result in gaps and increased bezel sizes.
Innovation Solution
A display panel design with pixel units arranged in an array, intersecting signal lines, and connecting electrodes formed using a magnetron sputtering process, where the electrodes are arranged to overlap with pixel units, reducing bezel size and enabling narrow or no borders when panels are spliced together.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If connecting electrodes are arranged along the second direction with overlap with pixel units, then bezel size is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent merges the function of connecting electrodes with the pixel unit arrangement by positioning the electrodes to overlap with pixel units. This integration allows the electrode structure to serve dual purposes: electrical connection and spatial utilization within the display area, thereby reducing bezel size without requiring entirely separate connection structures.
Solution Approach 2:
The patent changes the arrangement parameters of the connecting electrodes by defining their position along the second direction and establishing the overlap relationship with pixel units. This parameter-based positioning system provides a systematic approach to reducing bezel size while maintaining manufacturability through defined geometric relationships.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces bezel size, enhances display effect, and improves user experience by minimizing seams between tiled panels, allowing for nearly invisible seams in large-size displays.
Implementation Method 1
forming first connecting electrodes electrically connected to the first signal lines in one-to-one correspondence on the base substrate by a magnetron sputtering process with a magnetron sputtering mask
Data Source
AI summary
A display panel, a preparation method thereof, and a display device are disclosed. The display panel includes: a plurality of pixel units arranged in an array; a plurality of first signal lines extending in a first direction and arranged in a second direction; and a plurality of first connecting electrodes arranged in the second direction; where the first direction intersects with the second direction. The plurality of pixel units form m pixel rows arranged in sequence along the first direction and each extending along the second direction, where m is an integer greater than 1; and a projection of at least one pixel unit in an m-th pixel row on a plane perpendicular to the second direction and projections of the first connecting electrodes on the plane perpendicular to the second direction have an overlapped area.