Loop Antenna Layout Around Display Openings for Signal Loss Reduction
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Solution Overview
Problem
As display technology advances, the increasing area occupied by display apparatuses in electronic devices leads to severe signal loss and signal blocking due to structural antenna issues, affecting communication performance.
Innovation Solution
The integration of a loop-type antenna electrode on the base substrate in the display apparatus, surrounding the opening area and extending through non-display peripheral areas, enhances antenna performance by optimizing its placement and configuration, including the use of transparent conductive materials and RFIC for efficient signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna area is increased to improve communication performance, then signal transmission quality improves, but the display area and overall device size increase
Solution Approach 1:
The patent transitions from planar antenna designs to three-dimensional loop-type antenna structures that extend vertically through multiple layers (base substrate, buffer layer, passivation layer, conductive layer, and cover). This vertical dimensionality allows the antenna to achieve sufficient radiation area and communication performance without increasing the horizontal display area, resolving the contradiction between communication quality and display size.
Solution Approach 2:
The loop-type antenna is nested within the display device structure by integrating it into the existing layered architecture. The antenna electrodes are formed between the base substrate and cover, utilizing the vertical space within the display device thickness. This nesting approach allows the antenna to occupy space that would otherwise be structural, avoiding additional area consumption while maintaining communication performance.
2Ease of manufacture
If conventional antenna structures are used, then manufacturing is simpler, but signal loss and blocking occur due to structural problems
Solution Approach 1:
The patent merges the antenna structure with the display device's existing layered architecture. The loop-type antenna electrodes are integrated into the same structure that includes the base substrate, buffer layer, passivation layer, and cover, forming a unified multi-functional structure. This merging allows the antenna to benefit from the existing manufacturing processes and material layers, reducing signal loss without requiring completely separate manufacturing steps.
Solution Approach 2:
The antenna structure utilizes composite material layers including conductive materials (such as ITO, IZO, or aluminum) integrated with insulating and protective layers (buffer layer, passivation layer). This composite structure optimizes both electrical performance (reducing signal loss) and structural integrity, while being manufacturable through standard thin-film deposition and patterning processes.
Data Source
AI summary
A display apparatus includes a base substrate including an opening area which transmits light, an opening peripheral area which is a non-display area surrounding the opening area, and a display area surrounding the opening peripheral area, a thin film transistor disposed on the base substrate, a light emitting structure electrically connected to the thin film transistor, and a loop-type antenna electrode disposed on the base substrate in the opening peripheral area to surround the opening area.