Light-Emitting Substrate Zigzag Wiring for Uniform Thin Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In display products using mini or micro light-emitting diodes, the removal of diffusion film structures to achieve ultra-thin displays leads to poor light uniformity due to inadequate light dispersion, resulting in optical defects and adverse impacts on display quality.
Innovation Solution
A light-emitting substrate with a base substrate featuring a grid-like wiring structure formed by zigzag-extending first driving signal line groups, which alternately pass through light-emitting units in adjacent columns, ensuring uniform light distribution and arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If diffusion film structures are removed to achieve ultra-thin displays, then the thickness of the display is reduced, but light uniformity deteriorates due to inadequate light dispersion
Solution Approach 1:
The patent transforms the light guiding structure from a planar two-dimensional arrangement to a three-dimensional configuration by making signal lines extend in zigzag patterns across multiple layers and dimensions. This dimensional transformation increases the light path length and dispersion area without increasing the overall display thickness, thereby improving light uniformity while maintaining ultra-thin profile.
Solution Approach 2:
The signal lines are designed with zigzag curved paths instead of straight lines, creating multiple reflection points and extending the light propagation path. This curvature design enhances light dispersion throughout the light-emitting substrate, improving uniformity without requiring additional thickness for diffusion films.
2Device complexity
If signal lines are arranged in straight lines between light-emitting units, then the wiring structure is simple, but light uniformity deteriorates due to insufficient light dispersion
Solution Approach 1:
The patent employs zigzag-shaped signal lines that extend between adjacent light-emitting units in a curved, multi-directional pattern rather than straight lines. This curved configuration increases the light dispersion path and coverage area, improving light uniformity across the substrate while the zigzag pattern remains manufacturable with standard fabrication processes.
3Ease of manufacture
If light-emitting units are arranged in a regular grid pattern, then the arrangement is simple and manufacturing is easy, but light uniformity deteriorates due to insufficient light distribution
Solution Approach 1:
The patent maintains the simple grid arrangement of light-emitting units for ease of manufacture, but introduces dimensional complexity through zigzag signal line paths that traverse multiple layers and directions. This separates the simplicity of unit placement from the complexity of light distribution, achieving both manufacturing ease and improved light uniformity simultaneously.
Data Source
AI summary
A light-emitting substrate, a display device, and an electronic apparatus are provided. The light-emitting substrate includes a base substrate, light-emitting units, and first driving signal line groups; the light-emitting unit includes light-emitting sub-units; the first driving signal line is configured to be connected to the first electrode terminal of the light-emitting sub-unit; a translation distance in the column direction is provided between a k-th light-emitting unit in the N-th column and a k-th light-emitting unit in the (N+1)-th column, and the translation distance is smaller than a spacing between two adjacent light-emitting units in a same column in the column direction; the first driving signal line group is between the N-th column of light-emitting units and the (N+1)-th column of light-emitting units and alternately passes through light-emitting units in the N-th column and the (N+1)-th column; and each light-emitting unit is passed by two adjacent first driving signal line groups.