Dielectric Mirror Layer for Metallic Color in Display Panels
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Solution Overview
Problem
Current electronic devices lack the ability to provide a metallic color appearance beyond traditional paint options, which limits user customization in terms of texture and color.
Innovation Solution
A display panel assembly featuring a dielectric mirror layer with alternating high and low refractive index layers, combined with a light absorbing layer, is used to selectively reflect light and provide a metallic color sense, while an organic light emitting display panel and molding layer enhance the visual effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional paint is used for coloring electronic devices, then manufacturing is simple and cost-effective, but the ability to provide metallic color appearance and texture sense is limited
Solution Approach 1:
The patent applies composite materials by combining multiple dielectric layers with different refractive indexes (high-refractive-index layers and low-refractive-index layers) to create a dielectric mirror layer. This composite structure produces metallic color appearances through optical interference, overcoming the limitation of traditional single-material paints while maintaining a systematic manufacturing approach.
Solution Approach 2:
The patent utilizes parameter changes by adjusting the thickness of individual dielectric layers and the refractive indexes of materials to control the reflected color wavelengths. By varying these parameters, different metallic color appearances can be achieved from the same basic structure, providing versatility without complicating the manufacturing process.
2Adaptability or versatility
If a dielectric mirror layer with multiple layers is introduced to provide metallic color, then color appearance variety is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the dielectric mirror layer into multiple alternating high-refractive-index and low-refractive-index layers. Each layer is thin and has a specific function in the optical interference process. This segmentation allows control over the reflected color while keeping each individual layer simple to manufacture, thereby reducing overall complexity.
Solution Approach 2:
The dielectric mirror layer structure serves multiple functions: it provides metallic color appearance, controls light reflection, and can be integrated with existing display panel structures. The same layered approach can produce different colors by adjusting parameters, making it a universal solution for various color requirements without proportionally increasing complexity.
3Adaptability or versatility
If light absorbing layer is added to enhance metallic color effect, then color appearance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies the taking out principle by extracting and isolating the light absorption function into a separate layer beneath the dielectric mirror layer. This dedicated light absorbing layer prevents unwanted light transmission and enhances the metallic color effect by ensuring that only reflected light from the dielectric layers reaches the viewer, improving visual effect quality without requiring complex integration of multiple functions in single layers.
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 provides a metallic color appearance to electronic devices by selectively reflecting light, offering customizable and visually appealing options that go beyond traditional paint limitations.
Implementation Method 1
selectively reflects light that corresponds to a wavelength satisfying conditions of constructive interference from light incident through the window cover
Implementation Method 2
selectively reflects light incident through the window cover
Implementation Method 3
a light absorbing layer disposed on the dielectric mirror layer and absorbing light that transmitted the dielectric mirror layer
Implementation Method 4
a dielectric mirror layer disposed on a location of the rear surface of the window cover corresponding to the non-display area which selectively reflects light incident through the window cover
Implementation Method 5
selectively reflects light that corresponds to a wavelength satisfying conditions of constructive interference
Data Source
AI summary
A display panel assembly and an electronic device including the assembly are disclosed. In one aspect, the assembly includes a window cover including a display area and a non-display area and a display panel disposed on a location of a rear surface of the window cover corresponding to the display area. The assembly further includes a dielectric mirror layer disposed on a location of the rear surface of the window cover corresponding to the non-display area which selectively reflects light incident through the window cover to provide a metallic color sense to a user and a light absorbing layer absorbing light transmitted through the dielectric mirror layer.