Display device comprising adhesive layer comprising magnesium compound and yttrium compound and method of manufacturing the same
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Solution Overview
Problem
Display devices face increased thickness and manufacturing costs due to the inclusion of polarization layers, which are used to prevent external light reflection.
Innovation Solution
A display device structure comprising a substrate with a driving element and light emitting element, a window layer, and adhesive layers made of magnesium and yttrium compounds, along with a refractive layer, which collectively reduce external light reflection without the need for a polarization layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a polarization layer is added to prevent external light reflection, then the reflection prevention effect is improved, but the thickness of the display device increases
Solution Approach 1:
The anti-reflection function is segmented into multiple thin layers (first adhesive layer with magnesium compound and yttrium compound, second adhesive layer, and refractive layer) instead of using a single thick polarization layer. Each layer has a specific refractive index and thickness to collectively achieve the anti-reflection effect while maintaining thin overall structure.
Solution Approach 2:
The invention changes the refractive index parameter of each layer to optimize anti-reflection performance. The first adhesive layer has refractive index 1.38-1.40, the second adhesive layer has 1.46-1.50, and the refractive layer has 1.30-1.34. By precisely controlling these refractive index parameters and layer thicknesses, the device achieves effective light reflection prevention without increasing overall thickness.
2Object-affected harmful factors
If a polarization layer is added to prevent external light reflection, then the reflection prevention effect is improved, but the manufacturing cost increases
Solution Approach 1:
The invention replaces expensive polarization layers with cheaper adhesive layers and refractive layers made from magnesium compounds, yttrium compounds, and PFPE compounds. These materials are more cost-effective while achieving the same anti-reflection function, thereby reducing manufacturing costs.
Solution Approach 2:
The invention uses composite material structures combining magnesium compound (MgF2, MgO), yttrium compound (YOF), and PFPE compound in specific layers. This composite approach allows optimization of both optical properties and manufacturing cost, achieving effective anti-reflection without the high cost associated with traditional polarization layers.
3Object-affected harmful factors
If adhesive layers with specific refractive indices are used to reduce external light reflection, then the reflection prevention effect is improved, but the structural complexity increases
Solution Approach 1:
The adhesive layers serve multiple functions: they provide structural adhesion between components and simultaneously function as anti-reflection layers through their specific refractive indices. This multi-functionality reduces the need for separate anti-reflection layers, thereby simplifying the overall device structure while maintaining effective reflection prevention.
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 structure effectively reduces external light reflection while maintaining high strength, hardness, and durability, thereby enhancing the quality of the display device without increasing thickness or cost.
Implementation Method 1
A first adhesive layer is disposed on the window layer. The first adhesive layer includes a magnesium compound and an yttrium compound... effectively reduces external light reflection
Implementation Method 2
A refractive layer is disposed on the second adhesive layer. The refractive layer includes a PFPE compound... effectively reduces external light reflection
Data Source
AI summary
A display device having a substrate including a driving element and a light emitting element electrically connected to the driving element. A window layer is disposed on the substrate. A first adhesive layer is disposed on the window layer. The first adhesive layer includes a magnesium compound and an yttrium compound. A second adhesive layer is disposed on the first adhesive layer. A refractive layer is disposed on the second adhesive layer. The refractive layer includes a PFPE compound.