Elastic Component Buffering Frame Sealant Pressure in OLED Panels
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Solution Overview
Problem
OLED display panels are prone to defects such as dark dots, pixel contraction, and reduced lifetime due to the sensitivity of organic and metal materials to water and oxygen, which requires enhanced encapsulation to maintain airtightness and prevent oxidation.
Innovation Solution
Incorporating an elastic component between the frame sealant and the organic light emitting display, which buffers the pressure of the filler and includes an absorbent compound to reduce water vapor permeability, along with an encapsulation layer to protect the organic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the frame sealant is used to seal the organic light emitting display, then the airtightness is improved, but the pressure from the filler causes cracks in the frame sealant
Solution Approach 1:
An elastic component is arranged between the frame sealant and the organic light emitting display to buffer the pressure from the filler before it can cause cracks in the frame sealant. This cushioning structure absorbs the pressure and prevents direct transmission to the frame sealant, maintaining both airtightness and structural integrity.
2Duration of action of stationary object
If the organic light emitting display is sealed to prevent water and oxygen, then the lifetime is extended, but the pressure from filler may cause defects
Solution Approach 1:
The elastic component provides beforehand cushioning to protect the organic light emitting display from pressure-induced defects. By absorbing the pressure from the filler, it prevents cracks and other defects that would compromise display quality, while the sealing structure maintains the extended lifetime benefit.
3Stability of the object's composition
If the filler is used to fill the sealing space, then the structural stability is improved, but the pressure causes cracks in the frame sealant
Solution Approach 1:
The elastic component acts as an intermediary between the filler and the frame sealant. It allows the filler to provide structural stability to the sealing space while simultaneously protecting the frame sealant from pressure-induced cracks by absorbing and distributing the pressure.
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 reduces pressure-induced cracks in the frame sealant, enhances the airtightness of the display panel, and prevents oxidation of the organic light emitting display, thereby improving the reliability and extending the lifetime of the OLED panel.
Implementation Method 1
an elastic component arranged between the frame sealant and the organic light emitting display
Implementation Method 2
the elastic component includes an absorbent compound
Data Source
AI summary
The disclosure discloses a display panel, a method for fabricating the same and a display device. The display panel includes: a base substrate and a cover plate arranged opposite to each other, an organic light emitting display arranged between the base substrate and the cover plate, a frame sealant arranged between the base substrate and the cover plate and located around the organic light emitting display, and a filler arranged in a sealing space constituted by the base substrate, the cover plate and the frame sealant. The display panel further comprises: an elastic component arranged between the frame sealant and the organic light emitting display.