Display Panel Conductive-Line Layout for Higher Pixel Density
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Solution Overview
Problem
Conventional display panels face a trade-off between increased signal lines, which occupy space and reduce pixel size, leading to decreased resolution and display quality.
Innovation Solution
A display panel design with conductive lines arranged such that the ratio of distances between specific conductive lines follows a specific relationship (0≤Y1/Y2≤0.25), allowing for efficient use of space and increased pixel density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more signal lines are used to drive light-emitting elements, then the display quality can be improved, but the space occupied by signal lines increases, causing pixel size to become larger and resolution to decrease
Solution Approach 1:
The patent transitions from conventional parallel signal line arrangement to a folded bus structure where signal lines extend in multiple dimensions. The first signal line extends in a first direction and folds back to extend in a second direction opposite to the first, utilizing spatial dimensionality change to reduce the area occupied by signal lines while maintaining adequate signal transmission for display quality.
Solution Approach 2:
The signal line structure implements a nested arrangement where the first signal line is disposed between the second and third signal lines in the first direction, and the fourth signal line is disposed between the second and third signal lines in the second direction. This nested configuration allows multiple signal lines to share space efficiently, reducing overall area occupation while maintaining display quality.
2Reliability
If more signal lines are used to drive light-emitting elements, then the display quality can be improved, but the resolution of the display panel decreases
Solution Approach 1:
By folding the first signal line to extend in opposite directions, the patent reduces the linear footprint of signal lines, allowing more pixels to be packed into the same area. This dimensional change enables higher pixel density and resolution while maintaining adequate signal line length for driving light-emitting elements with sufficient display quality.
Solution Approach 2:
The patent merges the spatial occupation of multiple signal lines by arranging them in a compact folded structure. The first signal line shares space with the second, third, and fourth signal lines through the folded configuration, effectively combining their spatial footprints into a smaller area, thereby enabling higher resolution.
3Device complexity
If signal lines are arranged in a conventional manner, then the layout is simple, but the area occupied by conductive lines is large
Solution Approach 1:
The patent introduces a folded configuration where the first signal line extends in a first direction and folds back to extend in a second direction opposite to the first. This dimensional change creates a compact bus structure that significantly reduces the area occupied by conductive lines compared to conventional linear arrangements, while the complexity remains manageable through systematic folding patterns.
Solution Approach 2:
The signal line arrangement employs asymmetric folding where the first signal line has different extensions in opposite directions, creating an optimized asymmetric layout. This asymmetric configuration allows for more efficient space utilization compared to symmetric arrangements, reducing the overall area occupied by conductive lines while maintaining structural integrity.
Data Source
AI summary
A display panel includes a substrate and a pixel circuit. The pixel circuit is disposed on the substrate. The pixel circuit is configured to drive a light-emitting unit. The pixel circuit includes a first conductive line, a second conductive line disposed adjacent the first conductive line, a third conductive line and a fourth conductive line. The first conductive line and the second conductive line are disposed between the third conductive line and the fourth conductive line. The first conductive line, the second conductive line, the third conductive line, and the fourth conductive line extend along the same direction. The first distance Y1 between the first conductive line and the second conductive line and the second distance Y2 between the third conductive line and the fourth conductive line conform to the following relationship: 0≤Y1/Y2≤0.25.