Light-Emitting Substrate Wiring Layout for Low-Interference Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Signal interference among signal lines in mini and micro LED display devices due to limited wiring space, leading to potential display issues and reduced efficiency.
Innovation Solution
A light-emitting substrate design with a first and second wiring layer, featuring non-overlapping orthographic projections of signal lines and connecting lines, allowing for regional independent control of brightness with low power consumption and reduced interference, suitable for use in passive display devices like liquid crystal displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wiring space is reduced to achieve higher integration, then device integration is improved, but signal interference increases
Solution Approach 1:
The patent introduces a multi-layer wiring structure with first and second wiring layers positioned at different heights (Z-axis dimensions). The first signal lines are in the first wiring layer while connecting lines are in the second wiring layer, utilizing vertical separation to reduce horizontal overlap and signal interference while maintaining high integration density.
Solution Approach 2:
The patent segments the wiring into different functional layers: first signal lines for signal transmission in the first wiring layer, and connecting lines for inter-layer connections in the second wiring layer. This segmentation allows independent optimization of each layer's routing to minimize interference while maintaining integration.
2Area of stationary object
If signal lines are arranged closely to improve space utilization, then area efficiency is improved, but signal interference increases
Solution Approach 1:
The patent moves connecting lines from the same plane as signal lines to a different layer (second wiring layer above first wiring layer). This vertical dimensionality change allows signal lines and connecting lines to be closely positioned in the plan view without causing interference, as they occupy different Z-axis positions separated by insulating layers.
Solution Approach 2:
The patent introduces insulating layers (first insulating layer and second insulating layer) as intermediaries between the first wiring layer and second wiring layer. These intermediary layers electrically isolate the closely positioned signal lines and connecting lines, preventing signal interference while allowing tight spatial arrangement.
3Object-generated harmful factors
If multiple wiring layers are used to reduce interference, then signal interference is reduced, but device complexity increases
Solution Approach 1:
The patent segments wiring functions into two distinct layers: first signal lines for primary signal transmission and connecting lines for inter-layer connections. This segmentation reduces interference by separating functions vertically while keeping the overall structure manageable through clear functional division.
Solution Approach 2:
The multi-layer wiring structure serves multiple functions: the first wiring layer handles signal transmission, the second wiring layer handles connecting functions, and the insulating layers provide both electrical isolation and structural support. This multi-functionality justifies the increased structural complexity by consolidating multiple roles into an integrated system.
Data Source
AI summary
A light-emitting substrate and a display apparatus are disclosed, The substrate includes: a base substrate; a base substrate; a first wiring layer on the base substrate including a first signal line and a second signal line; a first insulating layer on a side of a first wiring layer facing away from the base substrate; and a second wiring layer on a side of the first insulating layer facing away from the base substrate. The second wiring layer includes a plurality of first connecting lines and a plurality of second connecting lines. The first signal line includes a plurality of first sub-signal lines extending in a first direction and arranged at intervals. At least one first sub-signal line is coupled with at least one first connecting line, and the second signal line is coupled with at least one second connecting line.