Display Support Unit as Integrated Antenna with Impedance Matching
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Solution Overview
Problem
Users face inconvenience in viewing terrestrial broadcasts without a separate antenna, as not all buildings have public antennas, and existing solutions either require a separate antenna or are inconvenient to set up.
Innovation Solution
A display device with a support unit that serves as an antenna, equipped with a matching unit using variable capacitors and inductors to optimize signal reception characteristics for each broadcast channel, allowing the device to receive and display terrestrial broadcasts without a separate antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate antenna is provided for receiving terrestrial broadcasts, then the reception rate is improved, but the device complexity and user convenience deteriorate
Solution Approach 1:
The patent combines the antenna function with the existing support unit structure. The support unit, which already provides mechanical support for the display device, is designed to also function as an antenna for receiving terrestrial broadcast signals. This merging eliminates the need for a separate antenna component, thereby improving reception rate without increasing device complexity
Solution Approach 2:
The support unit is designed to serve multiple functions: it provides mechanical support for the display device and simultaneously acts as an antenna for receiving broadcast signals. This multi-functionality allows the same component to fulfill both structural and signal reception roles, resolving the contradiction between reception performance and device complexity
2Reliability
If a separate antenna is provided for receiving terrestrial broadcasts, then the reception rate is improved, but the ease of operation deteriorates
Solution Approach 1:
By merging the antenna function into the support unit, the patent eliminates the need for users to separately install or connect an antenna. The antenna functionality is already integrated into the support structure, making the device ready for broadcast reception out of the box and significantly improving ease of operation
3Device complexity
If the support unit serves as an antenna without signal matching, then the device complexity is reduced, but the reception rate deteriorates
Solution Approach 1:
The patent incorporates a matching unit with variable capacitors that can dynamically adjust the impedance matching between the support unit antenna and the broadcast receiver across different frequency bands. This dynamic adjustment capability ensures optimal reception rate for various broadcast channels while maintaining a relatively simple overall device structure
Solution Approach 2:
The matching unit changes electrical parameters (capacitance values) to optimize signal reception characteristics for different frequency bands. By adjusting the capacitance of variable capacitors in the matching unit, the system adapts to different broadcast frequencies, improving reception rate without significantly increasing device complexity
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
Enables users to view terrestrial broadcasts with improved reception rates by matching signal reception characteristics to each broadcast channel, eliminating the need for a separate antenna and enhancing convenience.
Implementation Method 1
The matching unit may include at least one variable capacitor
Implementation Method 2
The matching unit may further include at least one inductor
Implementation Method 3
a support unit configured to support a body and receive a broadcast signal transmitted from an outside thereof
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
Provided are a display device and a control method therefor, which uses, as an antenna, a support unit for supporting a display panel, so as to enable a user of the display device to view a terrestrial broadcast without having a separate antenna, and matches the signal reception characteristic of the support unit to each broadcast channel, so as to allow the support unit to function as an antenna having an improved reception rate. A display device according to an embodiment comprises: a support unit which supports a body and receives a broadcast signal transmitted from the outside; a matching unit which is disposed in the body so as to match the signal reception characteristic of the support unit to a frequency band allocated to a broadcast channel; a tuning unit which selects a signal of the frequency band allocated to the broadcast channel among broadcast signals output from the matching unit; and a display unit which displays an image signal included in the selected signal of the frequency band.