Display Panel Auxiliary Signal Layer for High-Resolution Layout

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Solution Overview

Problem

The increasing resolution of display panels leads to limited layout space, making it difficult to connect initialization signal line patterns in the same row, thereby increasing production costs.

Innovation Solution

A display panel design that includes a first auxiliary signal line layer and conductive connection portions to couple initialization signal line patterns in each sub-pixel area, allowing for sequential coupling without requiring additional via holes through the planarization layer, thereby reducing layout space and manufacturing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the resolution of the display panel is increased, then the display quality is improved, but the layout space becomes smaller making it difficult to connect initialization signal line patterns

Engineering Contradiction:
Improvedisplay resolutionVSAvoidlayout space
Core Design Contradiction:
Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent introduces a first auxiliary signal line layer above the initialization signal line layer to establish signal transmission paths in a vertical dimension. This multi-layer approach allows initialization signal line patterns in the same row to be connected through the auxiliary layer without requiring additional lateral space in the planarization layer, thus resolving the space constraint imposed by high resolution requirements.

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

2Reliability

If additional via holes are added to connect initialization signal line patterns, then signal connectivity is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvesignal connectivityVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The first auxiliary signal line layer is formed in advance during the manufacturing process, before the initialization signal line patterns require connection. This preliminary structure provides pre-established connection paths that simplify subsequent manufacturing steps, avoiding the need to add complex via hole structures later in the process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The first auxiliary signal line layer acts as an intermediary structure between the initialization signal line patterns and the planarization layer. It provides a mediating connection path that eliminates the need for direct via hole connections through the planarization layer, thereby reducing manufacturing complexity while maintaining signal connectivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Area of stationary object

If the layout space is reduced, then high resolution is achieved, but the difficulty of connecting signal lines increases

Engineering Contradiction:
Improvelayout spaceVSAvoidsignal line connection ease
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

By utilizing the vertical dimension through the first auxiliary signal line layer, the patent enables signal line connections without requiring additional lateral layout space. This dimensional transition allows high resolution to be achieved while maintaining ease of manufacture through the auxiliary layer's connection paths.

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

Data Source

PatentUS12419166B2Display panel, method of manufacturing the same and display device
Publication Date: 2025.09.16 BOE TECHNOLOGY GROUP CO LTD
  • US12419166B2 patent drawing
  • US12419166B2 patent drawing
  • US12419166B2 patent drawing

AI summary

The present disclosure provides a display panel, a method of manufacturing the same, and a display device. The initialization signal line layer in the display panel includes an initialization signal line pattern arranged in each of the plurality of sub-pixel areas; the first auxiliary signal line layer includes a plurality of first auxiliary signal line patterns corresponding to the plurality of sub-pixel areas in a one-to-one manner, and the first auxiliary signal line pattern is coupled to an initialization signal line pattern in a corresponding sub-pixel area, at least part of the first auxiliary signal line pattern extends along the first direction, and first auxiliary signal line patterns corresponding to sub-pixel areas in a same row of sub-pixel areas are sequentially coupled.