Flexible Display Antenna Layout for Narrow-Bezel Sensing
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Solution Overview
Problem
Existing display devices face challenges in reducing the bezel size while incorporating antennas for wireless communication and sensing functions, which often occupy valuable space in the bezel area.
Innovation Solution
The display device incorporates antennas as sensors in non-display areas, utilizing a flexible substrate with protruded areas for antenna circuit boards, and designs asymmetric dipole and monopole antennas to minimize bezel size without compromising functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If antennas are disposed in the bezel area for wireless communication and sensing functions, then wireless communication and sensing capabilities are maintained, but the bezel size increases
Solution Approach 1:
The patent relocates antennas from the traditional bezel area to the non-display area, utilizing the flexible substrate that extends beyond the display region. This spatial reconfiguration allows antennas to be positioned in the third non-display area at corners or along edges, effectively using the vertical and horizontal extensions of the flexible substrate to achieve compact antenna integration without increasing the visible bezel dimensions.
Solution Approach 2:
The patent employs a flexible substrate that can be bent or folded to accommodate antenna circuit boards in the non-display area. This flexibility allows the antenna structure to be integrated into the corner or edge regions without adding rigid bulk to the bezel area, maintaining thin profile while preserving wireless communication and sensing functions.
2Area of stationary object
If asymmetric dipole and monopole antennas are designed to minimize bezel size, then bezel area is reduced, but antenna configuration complexity increases
Solution Approach 1:
The patent utilizes asymmetric dipole and monopole antenna designs where the antenna elements have unequal lengths or different geometrical configurations. This asymmetry allows the antennas to achieve compact footprints suitable for corner or edge placement in non-display areas, reducing the required bezel area while maintaining effective radiating patterns for wireless communication and sensing operations.
Solution Approach 2:
The patent divides the antenna system into multiple independent asymmetric antenna elements (dipole and monopole types) that can be separately configured and optimized. Each antenna element is independently designed with specific asymmetric geometries suitable for placement in constrained non-display areas, allowing modular integration that reduces overall bezel requirements while managing configuration complexity through standardization of individual elements.
Data Source
AI summary
According to an embodiment, a display device may include a display panel including a display area and a non-display region disposed outside the display area, and including a flexible substrate including a protruded area extended from a portion of the non-display area, and an antenna circuit board connected to the protruded area. The non-display region includes a first non-display area positioned on a long side of the display panel, a second non-display area positioned on a short side of the display panel and a third non-display area positioned on a corner of the display panel, connecting the first non-display area with the second non-display area, and the display panel includes at least one transmitting antenna disposed at least partially in, or adjacent to, the first non-display area, adjacent first receiving antennas and a second receiving antenna disposed in the third non-display area.