Display Panel Fan-Out Wiring With Virtual Grid for Uniform Emission
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Solution Overview
Problem
Existing organic light-emitting display panels suffer from uneven light emission and spot generation in the display region due to fan-out wiring, which affects display uniformity and viewing experience.
Innovation Solution
The display panel design includes a fan-out region partially located in the display region, with fan-out wires connected to pads, and virtual wires forming a grid structure insulated from the fan-out wires, ensuring uniform light emission by reducing the distance between data lines and pads, and minimizing wire bending angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fan-out wires are provided in the display region to achieve narrow-frame design, then the viewing experience is improved, but uneven light emission and spots are generated in the display region
Solution Approach 1:
The patent divides the display panel into distinct functional regions: a display region for image output and a non-display region containing the fan-out region for signal transmission. This segmentation allows fan-out wires to be positioned in the non-display region, eliminating their harmful visual impact while preserving signal transmission functionality.
Solution Approach 2:
The patent extracts the fan-out wires from the display region and relocates them to the non-display region. This extraction removes the source of light emission unevenness and spots from the visible area, while the fan-out wires continue to perform their signal transmission function in the non-display region.
2Manufacturing precision
If fan-out wires are relocated to the non-display region to improve display uniformity, then light emission evenness is improved, but the distance between pads and data lines increases
Solution Approach 1:
The patent utilizes the non-display region as an additional spatial dimension to route fan-out wires. By extending the wiring path into this unused spatial zone, the design achieves shorter effective connection distances between pads and data lines while keeping wires invisible, and maintains display region uniformity.
3Productivity
If fan-out region is configured partially in the display region to reduce wire distance, then connection efficiency is improved, but display uniformity deteriorates due to wire bending and light emission issues
Solution Approach 1:
The patent clearly segments the panel into display and non-display regions, assigning different functions to each. The fan-out region is exclusively positioned in the non-display region, eliminating wire-related visual defects from the display area while maintaining efficient signal transmission through optimized wire routing in the non-display region.
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes a display region, a non-display region at least partially surrounding the display region, and a fan-out region. The display region includes a plurality of scanning lines extending along a first direction and a plurality of data lines extending along a second direction, where the first direction intersects with the second direction. The non-display region includes a plurality of pads. The fan-out region is configured on one side of the display region closer to the plurality of pads, where at least part of the fan-out region is disposed in the display region. The fan-out region is provided with a plurality of fan-out wires for connecting the plurality of data lines to the corresponding pads.