LED Display Grid Wiring Layout for Low-Visibility Conductive Paths
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light-emitting displays for distant viewing face challenges in achieving good electrical conductivity, reducing wiring visibility, and enhancing aperture ratio to improve contrast, particularly when using LEDs with a transparent substrate and flexible wiring designs.
Innovation Solution
A light-emitting display device with a substrate featuring a patterned conductive layer, including grid wirings and slender wires, where the input voltage and ground connections are spaced apart to allow for multiple-grid shaped wires with smaller linewidths, reducing visibility and improving contrast, and a transparent protective layer is used to enhance light emission and reduce reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wiring designs are used with transparent substrates, then electrical conductivity can be maintained, but wiring visibility increases and aperture ratio decreases
Solution Approach 1:
The wiring is divided into two separate grid wirings (first grid wiring and second grid wiring) with different orientations. The first grid wiring extends in a first direction while the second grid wiring extends in a second direction perpendicular to the first direction, creating a segmented structure that reduces individual wire visibility while maintaining overall conductivity
Solution Approach 2:
The patent introduces a dimensional separation by orienting grid wirings in perpendicular directions (first direction and second direction), effectively using two-dimensional grid patterns instead of traditional linear wiring. This dimensional approach distributes the wiring load across multiple orientations, reducing the visibility impact of any single wire while maintaining electrical conductivity
2Reliability
If wiring density is increased to improve electrical conductivity, then conductivity improves, but wiring visibility increases and contrast decreases
Solution Approach 1:
The high-density wiring requirement is satisfied by segmenting the conductive path into two perpendicular grid systems. Each grid can operate at lower individual wire densities while collectively providing the necessary conductivity, thereby reducing overall wiring visibility and improving display contrast
Solution Approach 2:
By transitioning from linear wiring to two-dimensional perpendicular grid patterns, the patent achieves improved conductivity distribution without increasing wire density in any single direction. This dimensional approach allows current to flow through multiple pathways, maintaining conductivity while reducing the visual impact of individual wires
3Adaptability or versatility
If wiring flexibility is increased for design adaptability, then design changeability improves, but manufacturing complexity increases
Solution Approach 1:
The perpendicular grid wiring structure serves multiple functions simultaneously: it provides electrical conductivity, enables design flexibility through modular patterns, and facilitates standardized manufacturing processes. The universal grid pattern can be adapted to different display configurations without requiring complex custom wiring designs
Solution Approach 2:
The wiring system is segmented into standardized perpendicular grid units that can be independently designed and manufactured. This segmentation allows for modular design adaptability where grid sections can be reconfigured for different applications while maintaining consistent manufacturing processes, thereby reducing overall manufacturing complexity
Data Source
AI summary
A light-emitting display device has a substrate, at least four electrically isolated soldering pad regions, and a plurality of light-emitting assemblies. The minimum distance between the light-emitting assemblies is at least 2 mm. The soldering pad regions are correspondingly in electrical connection with the input voltage pin, the data signal input or output pin, the clock signal input or output pin, and the ground pin of one of the light-emitting assemblies. The soldering pad region which is in electrical connection with the input voltage pin is electrically connected with a first grid wiring, the soldering pad region which is in electrical connection with the ground pin is electrically connected with a second grid wiring, and the soldering pad region which is in electrical connection with the data signal input pin, the data signal output pin, the clock signal input pin, or the clock signal output pin is electrically connected with a slender wire. The slender wire and the soldering pad regions are formed in a patterned conductive layer.