Transparent Diamond Display Cover for Impact Resistance
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Solution Overview
Problem
Existing display device protection layers, such as glass or polyethylene, are prone to cracking, suffer from optical losses, and lack sufficient impact resistance and heat dissipation, leading to reduced durability and usability, especially under bright light conditions.
Innovation Solution
A transparent protective cover featuring a discrete diamond layer with a textured surface and controlled grain size, doping, and multiple sub-layers, produced by chemical vapor deposition, providing enhanced impact resistance, optical efficiency, and thermal dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If glass or polyethylene protection layers are used, then the display device is protected from physical damage, but the layers are prone to cracking and lack sufficient impact resistance
Solution Approach 1:
The patent changes the material parameter from conventional glass or polyethylene to diamond, which has fundamentally different mechanical properties including superior hardness, toughness, and impact resistance. This parameter change resolves the contradiction by providing a material that simultaneously delivers high strength and reliability without cracking.
Solution Approach 2:
The patent employs a composite structure consisting of a diamond layer combined with a transparent substrate. This composite material approach allows the diamond to provide exceptional strength and crack resistance while the substrate maintains transparency and structural support, effectively resolving the contradiction between impact resistance and cracking resistance.
2Illumination intensity
If conventional protection layers are used, then the display device is covered and protected, but optical losses occur reducing brightness and contrast
Solution Approach 1:
The patent changes the optical parameter of the protection layer by using diamond, which has superior optical transmission properties compared to glass or polyethylene. Diamond's wide bandgap and low absorption coefficient minimize optical losses across the visible spectrum, thereby resolving the contradiction by maintaining high display brightness while reducing optical energy loss.
3Temperature
If thin film diamond coatings are applied, then the display device gains protective properties, but the thin film nature limits heat dissipation
Solution Approach 1:
The patent changes the dimensional parameter of the diamond layer from a thin film coating to a thicker discrete layer. This parameter change enables sufficient thermal conduction path while maintaining the protective function, resolving the contradiction by providing adequate heat dissipation capability without excessive complexity.
4Object-affected harmful factors
If standard protection layers are used, then the display device is covered, but they lack antimicrobial properties and contribute to bacterial growth
Solution Approach 1:
The patent changes the chemical and biological parameter of the protection layer material from conventional organic materials to diamond. Diamond's chemically inert nature and non-porous structure create a surface that resists bacterial adhesion and growth, resolving the contradiction by providing antimicrobial properties while preventing harmful bacterial factors.
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 diamond layer enhances display device durability, improves optical performance by reducing reflections and increasing brightness, and offers antimicrobial properties while maintaining eco-friendliness through minimal mining impact.
Implementation Method 1
At least one of the first surface and the second surface has a textured surface which is configured to direct light away from the display module in a predetermined direction
Implementation Method 2
A transparent protective cover featuring a discrete diamond layer with a textured surface and controlled grain size, doping, and multiple sub-layers, produced by chemical vapor deposition
Data Source
Figure 1A~2
Figure 3A~3B
Figure 3C~3F
AI summary
A transparent protective cover (300) for a display device (400, 700, 902) is disclosed. The transparent protective cover (300) includes a discrete diamond layer (300-1). The discrete diamond layer (300-1) has at least one textured surface, diamond grain size below 500 nano meters, and dopants in the range of 1013 atoms/cubic centimeter to 1018 atoms/cubic centimeter. The display device (400, 700, 902) includes a stack of the transparent protective cover, a touch detection module, and a display module (404, 500, 600, 704). The display module (404, 500, 600, 704) is one of a liquid crystal display (LCD), an organic light emitting diode (OLED) display, active-matrix OLED (AMOLED) display, and quantum dot LED (QLED) display. The discrete diamond layer (300-1) protects the display module (404, 500, 600, 704), or the touch detection module form an external impact and provides optical efficiency, thermal dissipation, and antimicrobial properties to the display device (400, 700, 902) or an electronic apparatus configured with the display device (400, 700, 902).