Vehicle Display Switchable Reflective Layer for Visual Quality
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Solution Overview
Problem
Display devices in vehicles face issues with visual quality deterioration due to mismatch between internal vehicle design and external display device design, particularly in controlling ambient light reflection.
Innovation Solution
A display device incorporating a switchable reflective layer with an electrode layer and electroactive material pattern that changes thickness, width, and pitch in response to applied voltage, allowing control of ambient light reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed reflective layer is used in the display device, then the manufacturing process is simple, but the visual quality deteriorates due to mismatch with vehicle interior design
Solution Approach 1:
The patent applies a switchable reflective layer that can dynamically change its reflective properties based on voltage input. The electroactive material pattern adjusts its thickness, width, and pitch in response to electrical signals, allowing the display device to adapt its appearance to match different vehicle interior design themes. This dynamic adjustment resolves the contradiction by enabling the device to maintain high visual quality while remaining manufacturable through a standardized base structure that can be reconfigured.
Solution Approach 2:
The patent changes physical parameters of the electroactive material pattern including thickness, width, and pitch to control ambient light reflection. By adjusting these parameters through voltage application, the reflective layer can be optimized for different design requirements. This parameter change approach allows the same manufacturing process to produce a versatile display device that can adapt to various vehicle interior designs, resolving the contradiction between manufacturing simplicity and visual quality.
2Device complexity
If the electroactive material pattern has fixed dimensions, then the device structure is simple, but the ability to control ambient light reflection is limited
Solution Approach 1:
The patent implements a dynamic electroactive material pattern that changes its dimensions (thickness, width, pitch) in response to voltage. This dynamic capability allows the same structural base to provide varied ambient light reflection control, enhancing adaptability without requiring multiple fixed structural designs. The voltage-controlled adjustment enables the display device to adapt to different lighting conditions and design requirements while maintaining a relatively simple base structure.
Solution Approach 2:
The switchable reflective layer serves multiple functions by adjusting its reflective properties based on voltage input. The same electroactive material pattern can provide different levels of ambient light reflection control for various applications, such as matching different vehicle interior designs or adapting to different lighting conditions. This multi-functionality allows a single structural design to achieve versatile performance, resolving the contradiction between structural simplicity and adaptability.
3Ease of manufacture
If the display device uses a fixed design, then the manufacturing cost is low, but the harmony with vehicle interior design is poor
Solution Approach 1:
The patent employs a dynamic switchable reflective layer that can change its appearance based on voltage input, allowing the display device to adapt to different vehicle interior design themes. This dynamic capability enables the same manufacturing process to produce a versatile device that can harmonize with various interior designs by adjusting the reflective properties of the electroactive material pattern, thereby reducing the need for expensive custom manufacturing for different design requirements.
Solution Approach 2:
The patent changes key parameters of the electroactive material pattern including thickness, width, and pitch to control the reflective properties. By adjusting these parameters through voltage, the display device can be optimized for different design requirements without requiring physical retooling. This parameter change approach allows a single manufacturing process to serve multiple design harmonies, resolving the contradiction between manufacturing cost and design adaptability.
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
Enhances harmony between vehicle interior and display device design by adjusting reflectance and transmittance, improving visual quality and luminance.
Implementation Method 1
a switchable reflective layer including an electrode layer and an electroactive material pattern and positioned at a side of the display panel, wherein in a first mode in the electrode layer, the electroactive material pattern has a first thickness, a first width and a first pitch, wherein in a second mode in the electrode layer, the electroactive material pattern has a second thickness, a second width and a second pitch
Data Source
AI summary
A display device can include a display panel, and a switchable reflective layer having an electrode layer and an electroactive material pattern and positioned at a side of the display panel. In a first mode in the electrode layer, the electroactive material pattern has a first thickness, a first width and a first pitch. In a second mode in the electrode layer, the electroactive material pattern has a second thickness, a second width and a second pitch. The electroactive material pattern satisfies at least one of i) the second thickness being different from the first thickness, ii) the second width being different from the first width, and iii) the second pitch being different from the first pitch.