Display Panel Locking Structures for Narrow Bezel Reliability

Solution Overview

Problem

Traditional Frit glass powder packaging methods for display panels with narrow bezels compromise the reliability and pulling force of the panels, making it challenging to achieve a high screen-to-body ratio and full-screen display with a narrow bezel.

Innovation Solution

A display panel design featuring a first and second substrate with corresponding locking structures, including locking members and protrusions, that engage by sliding leftwards and rightwards, enhancing connection strength and sealing performance, thereby improving the pulling force and allowing for a narrower bezel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional Frit glass powder packaging method is used, then sealing is achieved, but the pulling force and reliability of the display panel deteriorate

Engineering Contradiction:

ImprovereliabilityVSAvoidpulling force

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The packaging structure is segmented into multiple locking members (first locking member, second locking member, third locking member, fourth locking member) distributed at different edges, where each locking member provides localized engagement and sealing, collectively enhancing both reliability and pulling force

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The locking members extend in the thickness direction of the substrates, creating engagement in the vertical dimension rather than relying solely on horizontal sealing. This dimensional change provides mechanical interlocking that significantly improves pulling force while maintaining sealing effectiveness

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Length of moving object

If traditional Frit glass powder packaging method is used, then sealing is achieved, but the bezel width cannot be reduced

Engineering Contradiction:

Improvebezel widthVSAvoidreliability

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

The packaging structure is segmented into multiple locking members (first locking member, second locking member, third locking member, fourth locking member) distributed at different edges, where each locking member provides localized engagement and sealing, collectively enhancing both reliability and pulling force

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The locking members extend in the thickness direction of the substrates, creating engagement in the vertical dimension rather than relying solely on horizontal sealing. This dimensional change provides mechanical interlocking that significantly improves pulling force while maintaining sealing effectiveness

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Measurement precision

If clamping up and down engagement method is used, then substrates are connected, but alignment accuracy deteriorates

Engineering Contradiction:

Improvealignment accuracyVSAvoidengagement method

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

Instead of clamping the substrates from top to bottom (vertical compression), the locking members engage by sliding along the edges in a horizontal direction. This inverted engagement approach allows for better alignment control during the sliding process and reduces the design margin requirements

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS11681332B2Display panel and method for manufacturing the same

Publication Date: 2023.06.20 SUZHOU GOVISIONOX INNOVATION TECHNOLOGY CO LTD

AI summary

A display panel includes: a first substrate; a second substrate, arranged opposite to the first substrate. A first locking structure is arranged on at least one edge of a surface of the first substrate facing the second substrate, a second locking structure that corresponds to the first locking structure is arranged on a surface of the second substrate facing the first substrate corresponding to the at least one edge. The first locking structure includes a first locking member arranged on the first substrate and a second locking member arranged on the first locking member. The second locking structure includes a third locking member arranged on the second substrate and a fourth locking member arranged on the third locking member. The first locking member is engaged with the third locking member, and the second locking member is engaged with the fourth locking member.