Multi-Region Connection Member for Moisture-Resistant Display Bonding
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Solution Overview
Problem
Existing display devices face challenges in preventing lifting and moisture permeation while maintaining aesthetics and ensuring stable power and signal supply through connection members.
Innovation Solution
A connection member with a multi-layered conductive structure, comprising a first region, a second region with a higher number of conductive layers, and a third region, where the uppermost layer of the second region extends to the third region, and the lowermost layer of the third region extends to the second region, is used to connect the display panel and the body unit. This structure includes insulating layers and conductive layers connected by vias, with cover layers made of black material to enhance aesthetics and prevent exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-layered conductive structure is used to ensure stable power and signal supply, then reliability is improved, but device complexity increases
Solution Approach 1:
The connection member is divided into three distinct regions (first, second, and third regions) with different numbers of conductive layers. The second region has a greater number of conductive layers than the first and third regions, allowing each region to be optimized for its specific function while maintaining overall system reliability.
Solution Approach 2:
Different regions of the connection member have different structural characteristics. The second region, which likely corresponds to areas requiring higher current carrying capacity or signal integrity, has more conductive layers. The first and third regions have fewer layers, reducing complexity where full multi-layer protection is not necessary.
2Reliability
If cover layers are added to prevent lifting and moisture permeation, then reliability is improved, but device complexity increases
Solution Approach 1:
The first and second cover layers are positioned to cover the third region and extend into the second region in advance, creating a protective barrier before moisture or lifting issues can occur. This preliminary protective action prevents harmful effects rather than remedying them later.
Solution Approach 2:
The cover layers are nested within the multi-layered conductive structure, with the first cover layer extending from the third region into the second region, and the second cover layer similarly positioned. This nesting integrates the protective function within the existing structural framework rather than adding completely separate protective elements.
3Reliability
If the number of conductive layers is increased in the second region, then power and signal supply stability is improved, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process can be segmented into different stages for different regions. The second region, requiring more conductive layers, can be manufactured with additional deposition or lamination steps localized to that area, while the first and third regions use simpler processes, reducing overall manufacturing complexity.
Solution Approach 2:
The manufacturing complexity is localized to the second region where additional conductive layers are required. The first and third regions use fewer layers, allowing for simpler manufacturing processes in those areas. This local differentiation optimizes the balance between performance requirements and manufacturing ease.
Data Source
AI summary
A connection member includes a first region, a second region, and a third region, where a number of conductive layers in the second region is greater than a number of conductive layers in the first region and is greater than a number of conductive layers in the third region, a first layer, which is an uppermost layer of the second region, extends to the third region, a second layer, which is a lowermost layer of the third region, extends to the second region, and a side portion of the second region at a boundary between the second region and the third region is covered by the first layer and the second layer.