Display Panel Slot Antenna Layout Without Transmittance Loss
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Solution Overview
Problem
The integration of antennas on-screen in display panels reduces light transmittance and increases manufacturing complexity.
Innovation Solution
A slot antenna is arranged in the non-display area of the display panel, utilizing a first conductive layer with an opening and a second conductive layer forming a feed line to create a slot antenna without affecting the display area's optical transmittance, and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an on-screen antenna scheme is adopted to expand antenna space and improve communication quality, then communication quality is improved, but light transmittance of the display panel decreases
Solution Approach 1:
The antenna is extracted from the display area and relocated to the non-display area. The slot antenna is formed by an opening in the first conductive layer and a feed line in the second conductive layer, both positioned in the non-display area, thereby separating the antenna function from the light-emitting area to maintain optical transmittance while preserving communication functionality.
Solution Approach 2:
The antenna structure utilizes the thickness dimension by forming a slot antenna that penetrates through the first conductive layer. The slot antenna extends in the thickness direction of the display panel, allowing electromagnetic wave radiation without occupying additional lateral space in the display area.
2Reliability
If an on-screen antenna scheme is adopted, then communication quality is improved, but manufacturing complexity increases
Solution Approach 1:
The antenna structure is merged with the existing conductive layers of the display panel. The slot antenna utilizes the first conductive layer (which may be part of the electrode structure) and the second conductive layer (which may be part of the signal transmission structure), integrating the antenna function into the existing manufacturing process without requiring separate antenna fabrication steps.
3Illumination intensity
If the first conductive layer is placed closer to the light-emitting surface, then light transmittance is improved, but antenna radiation performance may be affected
Solution Approach 1:
The first conductive layer is positioned closer to the light-emitting surface in the display area to optimize light transmittance, while the slot antenna structure (opening and feed line) is specifically configured in the non-display area. This local differentiation allows optimal optical performance in the display area and functional antenna performance in the non-display area without mutual interference.
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
Maintains optical transmittance and simplifies the manufacturing process by placing the slot antenna in the non-display area, improving communication quality and reducing production costs.
Implementation Method 1
the feed line is configured to be electrically connected with a communication chip to acquire a signal to be radiated from the communication chip
Data Source
AI summary
The present disclosure provides a display panel including a stack of: a substrate, including a display area and a non-display area; a first conductive layer, including a first conductive part located in the non-display area, wherein the first conductive part is provided with an opening, and the opening penetrates through the first conductive part along a thickness direction; a second conductive layer, including a feed line, wherein the feed line is arranged opposite to and is insulated from the first conductive part, so that the feed line cooperates with the opening to form a slot antenna, and the feed line is configured to be electrically connected with a communication chip to acquire a signal to be radiated from the communication chip. Since the slot antenna in the present disclosure is arranged in the non-display area, so that the optical transmittance of the display area will not be reduced by the slot antenna.