Flexible Display Support Bars and Bonding Member
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Solution Overview
Problem
Flexible display devices face damage during expansion operations due to lack of adequate panel support structures, which can lead to mechanical stress and potential damage to the display panel.
Innovation Solution
A display device design featuring a display panel with a first and second area, supported by a first support layer and support bars, respectively, bonded using a metal bonding member composed of nickel, copper, tin, silver, and zinc, ensuring strong bonding without overlapping the support bars' openings, and applying heat to achieve optimal bonding strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support structure is added to prevent display panel damage during expansion operations, then reliability is improved, but device complexity increases
Solution Approach 1:
The support structure is divided into multiple support bars spaced apart in the first direction, rather than using a continuous support layer. This segmentation provides adequate support while reducing material usage and complexity. The support bars are positioned to extend in the second direction (transverse to expansion direction), optimally distributing mechanical stress during expansion operations.
Solution Approach 2:
The support structure uses openings in the support layer at positions corresponding to the support bars, creating localized reinforcement only where needed. This allows the display panel to maintain flexibility in non-critical areas while receiving targeted support during expansion, balancing reliability improvement with device complexity management.
2Strength
If a bonding member is used to bond the support layer to support bars, then bonding strength is improved, but manufacturing complexity increases
Solution Approach 1:
A bonding member comprising a bonding metal is introduced as an intermediary layer between the support layer and support bars. This bonding metal creates strong metallurgical bonds with both the support layer and support bars, ensuring reliable mechanical coupling while simplifying the manufacturing process compared to direct bonding methods.
Solution Approach 2:
The bonding member is constructed from composite material properties, utilizing a bonding metal that combines multiple elements to achieve optimal bonding strength, ductility, and compatibility with both the support layer and support bars. This composite approach enhances bonding strength while managing manufacturing complexity through material selection.
3Adaptability or versatility
If the support bars are spaced apart in the first direction, then flexibility is improved, but support effectiveness deteriorates
Solution Approach 1:
The support structure is designed with openings that allow dynamic adjustment and movement of the display panel during expansion operations. The spaced support bars create a flexible support system that can adapt to the mechanical stresses of expansion while maintaining adequate support effectiveness through optimal spacing and positioning.
Solution Approach 2:
The support layer incorporates openings and works with the spaced support bars to create a flexible yet effective support system. This configuration allows the display panel to maintain its flexibility for expansion operations while the support bars provide necessary mechanical strength where required, achieving a balance between adaptability and support effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents damage to the display panel during expansion operations by enhancing the bonding strength between the support layers and bars, improving mechanical durability and reliability of the display device.
Implementation Method 1
a bonding member disposed between the first support layer and the plurality of support bars, the bonding member including a bonding metal
Implementation Method 2
applying heat to achieve optimal bonding strength
Data Source
AI summary
A display device includes a display panel including a first area and a second area, which are arranged in a first direction, a first support layer disposed below the display panel, overlapping the first area, and including a plurality of openings, a plurality of support bars spaced apart from each other in the first direction, disposed below the first support layer, and extending in a second direction intersecting the first direction, and a bonding member disposed between the first support layer and the plurality of support bars and including a bonding metal.