Display Panel Signal Bus Segmentation for Voltage Uniformity
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Solution Overview
Problem
The challenge is to enhance the display effect of pictures while increasing the proportion of the display area in full-screen displays, particularly addressing the issue of signal uniformity and voltage drops across different areas of the display panel, which affects the visual experience.
Innovation Solution
The solution involves a display panel design with multiple signal bus lines and conducting wires that surround the edges of display areas, ensuring electrical connections between signal lines to maintain signal uniformity across the panel, thereby improving the display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display area proportion is increased to achieve full-screen display, then the visual experience is improved, but signal uniformity and voltage stability deteriorate due to longer signal transmission paths and larger area
Solution Approach 1:
The display panel is divided into multiple display areas (first display area, second display area, third display area) with intermediate areas between them. Signal bus lines are segmented to serve different display areas independently, allowing each segment to maintain proper signal characteristics while contributing to a larger overall display area.
Solution Approach 2:
Signal bus lines are arranged in multiple layers (first signal bus line, second signal bus line, third signal bus line) at different positions within the display panel. This multi-layer arrangement provides additional transmission paths and reduces voltage drops by distributing the signal distribution function across multiple dimensions.
2Area of stationary object
If the display area proportion is increased, then the border width is reduced, but voltage drops and signal inconsistencies increase across the panel
Solution Approach 1:
Multiple signal bus lines are configured at different positions (first signal bus line at the first edge, second signal bus line at the second edge, third signal bus line at the third edge) to create equipotential regions across different display areas. This ensures that voltage levels remain consistent throughout the large display area by providing multiple reference points.
Solution Approach 2:
Intermediate areas are introduced between different display areas, and signal bus lines extend through these intermediate areas to connect different display regions. These intermediate signal bus lines act as mediators to maintain voltage uniformity across the entire panel despite the large overall area.
3Area of stationary object
If signal bus lines are extended to cover larger areas, then more display area can be served, but signal quality and uniformity deteriorate
Solution Approach 1:
Instead of using a single long signal bus line that would cause signal degradation, the patent divides the signal distribution into multiple segments (first signal bus line, second signal bus line, third signal bus line), each serving a specific display area. This segmentation maintains signal quality within each segment while collectively covering a large display area.
Solution Approach 2:
Signal bus lines are arranged in multiple layers and positions throughout the display panel rather than relying on a single planar arrangement. This multi-dimensional configuration reduces the effective transmission distance in any single direction and provides redundant signal paths, maintaining signal quality across the entire large display area.
Data Source
AI summary
A display panel is described. Further, an electroluminescent display panel and a display device are described. By arrangement of a second signal bus line, a first end of a first signal line in a first display area in the display panel is electrically connected with the first signal bus line, and the second end of the first signal line is electrically connected with a first conducting wire in the second signal bus line, so that uniformity of a signal input by the first signal line in the first display area can be ensured. Therefore, the structure is not only the precondition of ensuring signal uniformity of the first display area, but is also the precondition of ensuring signal uniformity of a display area of the entire display panel.