Display Cushion Layer Tuning for Thin Panel Impact Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels in lightweight and thin display apparatuses suffer from reduced impact resistance due to the properties of cushion layers, which need to be improved to effectively absorb external impacts.
Innovation Solution
Incorporating a cushion layer with specific mechanical properties, including a storage modulus and tangent delta within defined ranges, enhances the impact resistance of display apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If display panels are made lighter and thinner, then the display apparatus becomes more lightweight and compact, but the impact resistance of the display panel decreases
Solution Approach 1:
A cushion layer is arranged below the first plate to absorb external impacts before they reach the display panel. The cushion layer has specific mechanical properties (storage modulus of 0.1-10.0 MPa and tangent delta of 0.1-0.5 at 25°C and 1 Hz) that enable it to effectively cushion impacts while maintaining a lightweight and thin overall structure.
2Strength
If a cushion layer is added below the display panel, then the impact resistance is improved, but the device complexity and structural layers increase
Solution Approach 1:
The cushion layer is integrated into the existing structure below the first plate, combining the protective function with the overall device architecture. This merging approach adds impact protection without creating entirely separate complex subsystems, thereby limiting the increase in device complexity.
3Stability of the object's composition
If the cushion layer has high storage modulus, then the structural support is improved, but the ability to absorb impact energy decreases
Solution Approach 1:
The cushion layer is designed with specific parameter ranges: storage modulus of 0.1-10.0 MPa and tangent delta of 0.1-0.5 at 25°C and 1 Hz. These optimized parameters enable the cushion layer to provide adequate structural support while maintaining high impact energy absorption capability through appropriate material selection and property control.
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 cushion layer effectively absorbs external impacts, improving the overall impact resistance of the display apparatus while maintaining the lightweight and thin design.
Implementation Method 1
the cushion layer has a storage modulus in a range of about 0.1 megapascal (MPa) to about 10.0 MPa and a tangent delta in a range of about 0.1 to about 0.5, at a temperature of 25° C. and a frequency of 1 hertz (Hz)
Data Source
AI summary
A display apparatus includes: a display panel including a display element; a first plate arranged below the display panel; and a cushion layer arranged below the first plate, where the cushion layer has a storage modulus in a range of about 0.1 MPa to about 10.0 MPa and a tangent delta in a range of about 0.1 to about 0.5, at a temperature of 25° C. and a frequency of 1 Hz.