OLED Display Panel Conductive Layout for Compact Pixel Wiring

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Solution Overview

Problem

Existing light-emitting display panels face issues with complex wiring and space occupation, leading to poor user experience and manufacturing challenges.

Innovation Solution

The display panel design includes a substrate with a drive module layer, a first auxiliary layer, an anode layer, and a cathode layer, featuring an auxiliary conductive portion that is insulated from blocky anodes and connected via jumper layers, allowing for wider gap regions and simplified manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If traditional wiring layout is used in light-emitting display panels, then electrical connection is achieved, but wiring complexity increases and space occupation increases

Engineering Contradiction:
Improvewiring complexityVSAvoidspace occupation
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The patent introduces a third conductive portion disposed at a different spatial level (between the substrate and the second conductive portion), transforming a planar wiring problem into a three-dimensional structure. This vertical arrangement allows electrical connections without increasing lateral space occupation, effectively resolving the contradiction between wiring complexity and space occupation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent divides the conductive path into multiple segmented portions (first, second, and third conductive portions) that are spatially separated and functionally independent. This segmentation allows each portion to be optimized for its specific function, reducing overall wiring complexity while maintaining compact space utilization.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If more conductive portions are added to simplify wiring, then ease of manufacture improves, but device complexity increases

Engineering Contradiction:
Improvemanufacturing easeVSAvoidconductive structure complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The third conductive portion serves multiple functions simultaneously: it provides electrical connection pathways, acts as a structural support element, and enables simplified manufacturing processes. By designing this component to fulfill multiple roles, the patent improves ease of manufacture without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250341908A1Organic light-emitting diode display panel and display device
Publication Date: 2025.11.06 HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
  • US20250341908A1 patent drawing
  • US20250341908A1 patent drawing
  • US20250341908A1 patent drawing

AI summary

Provided are a display panel and a display device. The display panel includes a substrate, a first conductive portion, a second conductive portion and a third conductive portion. The second conductive portion is disposed between the first conductive portion and the substrate. The first conductive portion is electrically connected to a drive module through the second conductive portion. The second conductive portion is disposed between the third conductive portion and the substrate. The projection of the third conductive portion on the substrate does not overlap with the first conductive portion. The projection of the third conductive portion on the substrate overlaps with the second conductive portion.