OLED Display Anti-Impact Member for Substrate Oscillation
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Solution Overview
Problem
Organic light emitting display apparatuses are prone to damage from external impacts due to the oscillation of the top substrate, which can lead to cracks and damage in the peripheral area, potentially extending to the display area.
Innovation Solution
Incorporating an anti-impact member in the peripheral area of the bottom substrate, apart from the sealing member, which protrudes towards the top substrate, helps absorb and reduce the oscillation of the top substrate during external impacts, thereby minimizing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is used to attach the bottom substrate to the top substrate, then the display apparatus is sealed and protected, but the structure becomes vulnerable to damage from external impacts due to top substrate oscillation
Solution Approach 1:
An anti-impact member is positioned between the bottom substrate and top substrate to absorb impact energy before it reaches the sealing member and display area. This cushioning element prevents direct transmission of external forces, protecting the sealed structure from damage while maintaining the integrity of the sealing arrangement.
Solution Approach 2:
The anti-impact member acts as an intermediary element between the external environment and the sealed display structure. It mediates the transmission of impact forces, dissipating energy through controlled deformation or damping mechanisms, thereby protecting both the sealing member and the vulnerable display area from direct impact damage.
2Stability of the object's composition
If the top substrate is rigidly attached to the bottom substrate, then structural stability is improved, but impact forces are transmitted directly causing cracks and damage
Solution Approach 1:
The anti-impact member introduces a flexible or compliant element into the substrate assembly. This flexible component allows the structure to absorb impact energy through elastic deformation or damping, preventing the rigid transmission of forces that would otherwise cause cracks while maintaining overall structural stability during normal operation.
Solution Approach 2:
The anti-impact member is positioned in advance between the substrates to provide cushioning before impact occurs. This pre-positioned protective element absorbs and dissipates impact energy, preventing the transmission of harmful forces to the display area and other vulnerable components, thereby maintaining structural integrity under impact conditions.
3Area of stationary object
If the display area is maximized, then the useful viewing area increases, but the peripheral area for protective structures is reduced
Solution Approach 1:
The anti-impact member is positioned locally in the peripheral area near the sealing member, concentrating protective function in a specific location rather than requiring uniform protection across the entire structure. This localized approach provides effective impact protection at the critical sealing region while minimizing the space required, thereby preserving maximum display area.
Solution Approach 2:
The anti-impact member serves as a compact intermediary structure positioned between the substrates in the peripheral region. It provides protective function in a space-efficient manner, absorbing impact energy without requiring extensive peripheral space, thus allowing the display area to be maximized while maintaining reliable protection.
Data Source
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AI summary
An organic light emitting display apparatus having improved impact resistance includes a bottom substrate (110) including a display area (DA) and a peripheral area (PA) surrounding the display area (DA); a plurality of organic light emitting devices (200) arranged in the display area (DA) of the bottom substrate (110); a top substrate (300) corresponding to the bottom substrate (110); a sealing member (400), which is arranged in the peripheral area (PA) of the bottom substrate (110) and attaches the bottom substrate (110) to the top substrate (300); and an anti-impact member (185), which is arranged in the peripheral area (PA) of the bottom substrate (110), is apart from the sealing member (400), and protrudes from the bottom substrate (110) toward the top substrate (300).