Modular Display Panel Interconnect for Voltage Uniformity
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Solution Overview
Problem
Existing technologies face challenges in manufacturing ultra-large flat panel display apparatuses, as conventional methods struggle to maintain uniform voltage levels and minimize seam regions when assembling multiple display panels in a tiled manner, leading to issues with display quality and ease of panel replacement.
Innovation Solution
A display apparatus design featuring unit display panels with defined power terminals and a connecting member that ensures uniform voltage distribution across the entire display area by connecting low and high-level power terminals, allowing for seamless assembly and replacement of panels in a matrix configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display panels are assembled in a tiling manner to manufacture ultra-large flat panel display apparatus, then the display area can be expanded to ultra-large sizes, but voltage levels become non-uniform across the display area leading to luminance deviations
Solution Approach 1:
The power supply system is segmented into multiple independent power supply units, each serving a specific display panel. Each power supply unit includes separate low-level voltage and high-level voltage power supplies that can be independently adjusted to compensate for voltage drops in large-area displays, thereby maintaining uniform voltage levels across the entire ultra-large display area.
Solution Approach 2:
Different regions of the ultra-large display are provided with locally optimized power supply configurations. Each display panel receives customized voltage levels through its dedicated power supply unit, allowing local adjustment of voltage parameters to compensate for position-dependent voltage drops and ensure uniform luminance across the entire display area.
2Area of stationary object
If multiple display panels are assembled in a tiling manner, then the display apparatus becomes expandable in size, but seam regions become visible when gaps between panels exceed certain thresholds
Solution Approach 1:
A connecting member is introduced as an intermediary component between adjacent display panels. This connecting member includes positioning structures that precisely align the panels with each other, minimizing gaps and seam visibility. The connecting member acts as a mediator that ensures high-precision positioning while allowing the overall display area to be expanded through modular panel assembly.
3Adaptability or versatility
If multiple display panels are assembled in a tiling manner, then the display apparatus can be configured in various sizes, but the structure becomes complex making panel replacement difficult
Solution Approach 1:
The display apparatus is segmented into independent, modular display panels that can be individually replaced. Each panel is designed as a self-contained module with its own power supply connections and positioning structures, allowing defective panels to be quickly removed and replaced without affecting other panels, thereby simplifying maintenance while maintaining size configurability.
Solution Approach 2:
The connecting member is designed with universal positioning structures that work across all panel configurations. The same connecting member design can be used regardless of the number or arrangement of panels, enabling consistent panel replacement procedures whether the display is configured with 2 panels or 100 panels, thus simplifying repair operations while maintaining adaptability.
Data Source
AI summary
A large-area display apparatus may include: a cover plate; a plurality of unit display panels arrayed on one surface of the cover plate, each of the unit display panels including a substrate; a display area defined at middle portions of the substrate; a non-display area around the display area; a pad portion disposed in the non-display area; a first terminal disposed outside the pad portion in the non-display area; and a second terminal apart from the first terminal disposed outside the pad portion in the non-display area; and a connecting member disposed between two unit display panels, the connecting member connecting the first terminals of the unit display panels and the second terminals of the unit display panels, respectively.