Stretchable Antenna Design for Flexible Display Devices
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Solution Overview
Problem
The demand for thinner, lighter electronic devices with increased functionality has led to a need for reducing the size of electronic modules while maintaining their effectiveness, particularly in antennas, which face challenges in maintaining frequency characteristics as device shape changes.
Innovation Solution
The use of stretchable antennas with varying sizes and patterns, including mesh shapes and curved-line portions, that can be stretched to accommodate different frequencies and device shapes, allowing for multiple frequency bands to be supported without compromising performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the size of electronic modules is reduced to meet thinner and lighter device requirements, then device portability is improved, but antenna effectiveness and frequency characteristics deteriorate
Solution Approach 1:
The patent applies the dynamics principle by making the antenna stretchable and adaptable in size. The antenna can be stretched to different lengths to maintain proper frequency characteristics regardless of device size. This dynamic adjustment capability allows the antenna to maintain effectiveness in both compact and expanded states, resolving the contradiction between reduced device weight and maintained antenna performance.
Solution Approach 2:
The patent employs parameter changes by varying the physical dimensions of the antenna through stretching. The antenna's length and shape can be modified to match different frequency requirements and device configurations. This parameter adjustment enables the antenna to maintain proper electrical characteristics even when the overall device size is reduced for portability.
2Adaptability or versatility
If multiple antenna modules are added to support increased functions and specifications, then device functionality is improved, but device size increases
Solution Approach 1:
The patent applies universality by designing a single stretchable antenna that can perform multiple functions across different frequency bands. Instead of requiring separate antenna modules for different functions, this multi-functional antenna can be adjusted to support various frequency requirements, thereby maintaining enhanced device functionality without proportionally increasing device area.
Solution Approach 2:
The dynamic stretchable design allows one antenna to replace multiple fixed-size antennas. By stretching or compressing the antenna to different configurations, the system can support multiple frequency bands and functions using a single adaptable component, reducing the total area required compared to having multiple separate antenna modules.
3Ease of manufacture
If fixed-size antennas are used in devices with variable shapes, then manufacturing simplicity is maintained, but frequency characteristics cannot be maintained when device shape changes
Solution Approach 1:
The patent resolves this contradiction by making the antenna dynamic and stretchable. Rather than using fixed-size antennas that work only for specific device shapes, the stretchable antenna can be adjusted to maintain proper frequency characteristics across various device configurations. This dynamic adaptability ensures reliable frequency performance while still allowing for relatively simple manufacturing processes.
Data Source
AI summary
The present disclosure presents an electronic device. The electronic device may include a display panel, an input sensor, a first antenna, and a second antenna. The display panel includes a display region and a non-display region adjacent to the display region. The input sensor is disposed on the display panel and overlapped with a first region of the display region. The first antenna and a second antenna are disposed on the display panel and are overlapped with a second region of the display region, and each of which includes a stretchable pattern. A first distance between opposite ends of the stretchable pattern of the first antenna may be different from a second distance between opposite ends of the stretchable pattern of the second antenna. The inventive concept may provide an electronic device including a stretchable antenna.