Narrow Bezel Array Substrate with Segmented Encapsulation Region

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing display panels face challenges in achieving a narrow bezel design due to uneven edges and inadequate cutting results when using the frit solution encapsulation method, which affects display performance.

Innovation Solution

The encapsulation region is divided into a first region away from the display region and a second region, with a metal layer only in the second region and a frit solution layer in both regions, featuring a cutting edge in the first region for precise cutting after alignment and bonding with an encapsulation cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a cutting region is reserved in the peripheral of the encapsulation region to ensure sufficient flat edges, then the cutting result is improved, but the bezel width increases and narrow bezel design becomes difficult

Engineering Contradiction:

Improvecutting resultVSAvoidbezel width

Core Design Contradiction:

Manufacturing precisionVSLength of moving object

Solution Approach 1:

The encapsulation region is divided into a first region and a second region. The second region contains the metal layer and frit solution layer for encapsulation, while the first region is reserved for cutting operations. This segmentation allows the cutting edge to be positioned within the encapsulation region itself, eliminating the need for additional peripheral cutting regions and enabling narrow bezel design while maintaining cutting precision.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent repositions the cutting edge from the peripheral area outside the encapsulation region to within the encapsulation region by utilizing the first region. This dimensional reorganization allows the cutting operation to occur within the existing encapsulation boundary, reducing the overall bezel width while ensuring sufficient flat edge for cutting.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Length of moving object

If the edges of the display panel are cut directly without reserving a cutting region, then the bezel width is reduced, but the cutting result becomes defective due to insufficient flat edges

Engineering Contradiction:

Improvebezel widthVSAvoidcutting result

Core Design Contradiction:

Length of moving objectVSManufacturing precision

Solution Approach 1:

The encapsulation region is segmented into a first region specifically designated for cutting and a second region for encapsulation materials. This segmentation ensures that sufficient flat edge area is available within the encapsulation region to accommodate cutting operations, guaranteeing cutting precision while minimizing bezel width.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first region is pre-configured within the encapsulation region to provide the necessary flat edge for cutting operations. This preliminary arrangement ensures that when cutting is performed, the required flat edge is already in place, eliminating the need for additional peripheral cutting regions and preventing defective cuts.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the metal layer and frit solution layer are formed in the entire encapsulation region, then the encapsulation coverage is improved, but the cutting precision deteriorates due to uneven edges

Engineering Contradiction:

Improveencapsulation coverageVSAvoidcutting precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The encapsulation region is divided into a first region and a second region. The metal layer and frit solution layer are formed only in the second region, while the first region remains clear for cutting operations. This segmentation ensures both adequate encapsulation coverage in the second region and sufficient flat edge for precise cutting in the first region.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the encapsulation area are assigned different functions: the second region contains the metal layer and frit solution layer for encapsulation, while the first region is kept clear for cutting operations. This local differentiation ensures that encapsulation coverage is maintained where needed while cutting precision is preserved where required.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10431609B2Array substrate, display panel with frit at cutting edge for narrow bezel

Publication Date: 2019.10.01 WUHAN TIANMA MICRO ELECTRONICS CO LTD

AI summary

An array substrate, a display panel, an encapsulation method for the display panel, and a display apparatus are provided. The array substrate comprises a display region and an encapsulation region divided into a first region away from the display region and a second region adjacent to the display region. The encapsulation region includes a metal layer configured only in the second region, a frit solution layer configured in both the first region and the second region, and a cutting edge configured in the first region. The array substrate which has been aligned and bonded with an encapsulation cover is cut along the cutting edge.