Directional Antenna Placement Behind Display Panel
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Solution Overview
Problem
The shrinking size of flat panel display devices poses a challenge for accommodating traditional omnidirectional embedded antennas, which are typically used for wireless communication, due to limited space, especially in devices with narrow or no side frames.
Innovation Solution
The integration of a directional antenna within the housing of the display device, positioned behind or under the display panel at a specific angle relative to the horizontal plane, utilizing a substrate with transmitting, radiating, and reflecting elements to provide efficient wireless signal radiation patterns across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional omnidirectional embedded antennas are used in display devices, then wireless communication capability is achieved, but the device size increases due to space requirements for antenna placement
Solution Approach 1:
The patent positions the directional antenna behind or under the display panel rather than in the side frame, utilizing the z-dimension (depth) and rear space. This dimensional relocation allows the antenna to fit within the existing device footprint without increasing overall device volume, while still achieving wireless communication functionality.
Solution Approach 2:
The patent employs a directional antenna with specific radiation patterns tailored for particular communication directions, rather than an omnidirectional antenna that radiates uniformly in all directions. This localized radiation approach optimizes space utilization and allows precise positioning within the constrained device interior.
2Reliability
If traditional omnidirectional embedded antennas are used in display devices, then wireless communication is enabled, but the side frame width must be increased to accommodate the antenna
Solution Approach 1:
The patent extracts the antenna from the traditional side frame location and relocates it to the rear or under-panel area. This extraction removes the constraint that would otherwise require increased side frame width, allowing for ultra-narrow or frameless display designs while preserving wireless communication capability.
Solution Approach 2:
By moving the antenna placement from the lateral dimension (side frame) to the longitudinal dimension (rear/under area), the patent eliminates the need for increased side frame width. The antenna is accommodated in the depth direction and rear space instead, enabling narrow bezel designs.
3Productivity
If directional antenna is positioned at specific angle, then signal radiation efficiency is improved, but antenna placement complexity increases
Solution Approach 1:
The patent integrates the directional antenna with the display panel structure, positioning it behind or under the panel in a unified assembly. This merging of antenna and display structure simplifies the overall placement process, as the antenna becomes part of the standard display module assembly rather than a separate component requiring independent installation.
Solution Approach 2:
The patent optimizes the antenna's radiation pattern parameters by positioning it at specific angles relative to the display panel. This parameter optimization improves signal radiation efficiency in key directions while maintaining a standardized placement approach that does not significantly increase placement 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
This configuration allows for effective wireless communication by optimizing antenna placement, ensuring signal reception and transmission without obstructing the radiating path, even when the device is positioned in tight spaces or behind barriers, thereby enhancing communication quality and efficiency.
Implementation Method 1
a first directional antenna disposed in the housing behind or under the display panel for radiating a wireless signal
Implementation Method 2
a first reflecting element disposed on the substrate along the second direction for reflecting the first radiation pattern of the first band towards the first direction
Data Source
AI summary
A display device includes a display panel and a directional antenna. The directional antenna is disposed behind or under the display panel for radiating or receiving wireless signals. The radiating path of the directional antenna is at a specific angle with respect to a horizontal plane for receiving surrounding wireless signals. Or, the signals radiated from the directional antenna may be reflected or refracted to regions above or in front of the display device by a back-side barrier or penetrate a back-side barrier which does not cause large electromagnetic degradation, thereby receiving wireless signals originated from the front-side or back-side of the display device.