Display PCB Layout With Integrated NFC Antenna for Easier Assembly

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Solution Overview

Problem

Existing electronic apparatuses are complex to manufacture due to the presence of various elements, including display panels, wireless communication antennas, and flexible printed circuit boards, which complicates their assembly and integration.

Innovation Solution

The electronic apparatus is designed with a simplified structure that includes a light-transmitting window, a display panel, a printed circuit board with a near-field communication antenna, and a main circuit board, where the printed circuit board is positioned over a side of the display panel facing away from the light-transmitting window, and the main circuit board is positioned over a side of the printed circuit board facing away from the display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If various elements (display panel, wireless communication antenna, flexible printed circuit board) are included in the electronic apparatus, then the functionality is enhanced, but the manufacturing complexity increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the near-field communication antenna with the flexible printed circuit board, integrating two functional elements into a single component. This merging reduces the total number of separate parts that need to be assembled, thereby simplifying manufacturing while maintaining both display and communication functionalities

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flexible printed circuit board serves multiple functions: it provides structural support, transmits electrical signals to the display panel, and incorporates the near-field communication antenna for wireless communication. This multi-functionality reduces the need for separate components, simplifying the overall device structure and manufacturing process

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate components are used for different functions, then the functionality is enhanced, but the assembly process becomes more complex

Engineering Contradiction:
ImprovefunctionalityVSAvoidassembly process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The near-field communication antenna is integrated directly into the flexible printed circuit board, combining two previously separate components into one. This integration reduces the number of assembly steps required, as fewer parts need to be handled and positioned during the manufacturing process

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the antenna area is kept clear of wires, then the near-field communication performance is improved, but the circuit board design becomes more constrained

Engineering Contradiction:
Improvenear-field communication performanceVSAvoidcircuit board design constraints
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent utilizes the flexible, multi-layer nature of the printed circuit board to route wires in three-dimensional space around the antenna area. By employing different layers and spatial routing, the design maintains clear antenna regions for optimal near-field communication while still providing complete electrical connectivity for the display panel

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 design results in an electronic apparatus that is easier to manufacture while maintaining the capability for near-field communication, thereby reducing manufacturing complexity and costs.

Implementation Method 1

a printed circuit board electrically connected to the display panel, disposed over a side of the display panel to face away from the light-transmitting window, and including wires and a near-field communication antenna

Methodology Applied
Scientific EffectNear-field communication: Electromagnetic Induction

Data Source

PatentUS20250132485A1Electronic apparatus
Publication Date: 2025.04.24 SAMSUNG DISPLAY CO LTD
  • US20250132485A1 patent drawing
  • US20250132485A1 patent drawing
  • US20250132485A1 patent drawing

AI summary

An electronic apparatus having a simple structure and capable of near-field communication comprises a light-transmitting window, a display panel disposed over the light-transmitting window, a printed circuit board electrically connected to the display panel, disposed over a side of the display panel to face away from the light-transmitting window, and including wires and a near-field communication antenna, and a main circuit board electrically connected to the printed circuit board and disposed over a side of the printed circuit board to face away from the display panel.