Bubble-Filled Buffer Layer for Display Shock Absorption
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Solution Overview
Problem
Existing display screens, particularly OLEDs and LCDs, suffer from poor shock resistance and drop resistance, with cracks often occurring at the edges due to inadequate buffering, leading to reliability and image performance issues.
Innovation Solution
A display device with a buffer layer filled with bubbles is introduced between the cover lens and the display panel in the non-display region, enhancing the buffering effect to absorb external impacts and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional adhesive layer is used to attach the cover lens to the display panel, then the device achieves basic structural integrity, but the shock resistance and drop resistance remain poor with cracks occurring at edges
Solution Approach 1:
The adhesive layer is designed with a porous structure containing multiple bubbles distributed throughout its thickness. These bubbles act as energy absorption units that collapse or deform under impact, dissipating mechanical energy and preventing crack propagation to the display region.
Solution Approach 2:
The adhesive layer combines the bonding function of conventional adhesives with the energy-absorbing characteristics of bubble-filled structures. This composite approach maintains structural integrity while adding shock absorption capabilities, enabling the device to withstand higher impact energies.
2Length of moving object
If the cover lens thickness is reduced to achieve thinner display devices, then the device achieves compactness and light weight, but the crack resistance deteriorates with 80% of cracks occurring in thin cover lenses
Solution Approach 1:
The bubble-filled adhesive layer is positioned between the cover lens and display panel to provide preemptive cushioning. When external forces are applied, the bubbles absorb impact energy before it can reach and crack the thin cover lens or display panel, enabling the use of thinner components without sacrificing reliability.
3Device complexity
If OLED technology is used to eliminate backlight modules and achieve light weight, then the device achieves compactness, but the protection against external forces is reduced making OLEDs more severely affected
Solution Approach 1:
The bubble-filled adhesive layer serves as an intermediary protective element between the OLED display panel and external environmental forces. It absorbs and dissipates impact energy, protecting the OLED structure from direct mechanical stress that would otherwise cause damage in the absence of a backlight module's protective function.
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 buffer layer with bubbles significantly improves the mechanical shock resistance and drop resistance of the display device, allowing it to withstand higher impact energies and maintain image quality.
Implementation Method 1
the buffer layer is selectively filled with a plurality of bubbles to enhance a buffering effect
Data Source
AI summary
A display device and a display device packing method are provided. The display device comprises a display panel having a display region and a non-display region; a cover lens disposed on a light-emitting surface of the display panel; and a buffer layer disposed between the cover lens and the display panel and in the non-display region of the display panel, wherein the buffer layer is selectively filled with a plurality of bubbles to enhance a buffering effect.