Touchscreen FM Antenna Integration via Separation Layer

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Solution Overview

Problem

Current mobile terminals with FM antennas require earphones for FM broadcast reception, limiting flexibility due to the need for unfolding or stretching, which compromises user experience.

Innovation Solution

A touchscreen terminal design incorporating a frequency modulation FM antenna layer between conductive and touch layers, separated by a separation layer, allowing for direct FM broadcast reception without earphones.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an FM antenna is implemented using earphones, then FM broadcast reception is enabled, but flexibility is reduced due to the need to carry and unfold earphones

Engineering Contradiction:
Improveflexibility for receiving FM broadcastVSAvoidconvenience of FM reception
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the FM antenna function with the existing touchscreen structure by integrating the antenna layer into the touchscreen's multi-layer construction. The antenna layer is incorporated between the basal layer and conductive layers, combining the display function and FM reception function into a single integrated component, eliminating the need for separate earphone-based antenna systems

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The touchscreen structure is designed to serve multiple functions simultaneously: the basal layer provides both structural support and houses the FM antenna, while the conductive layers serve both touch sensing and antenna functions. This multi-functionality allows the terminal to receive FM broadcasts directly without requiring dedicated earphone accessories

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

2Adaptability or versatility

If the FM antenna is integrated into the touchscreen structure, then flexibility and convenience are improved, but interference between the antenna and conductive layers must be managed

Engineering Contradiction:
Improveintegration of FM antenna in touchscreenVSAvoidinterference between antenna and conductive layer
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a separation layer as an intermediary between the antenna layer and the conductive layers. This separation layer acts as a mediator that prevents harmful electromagnetic interference between the FM antenna and the touch sensor conductive layers, while still allowing the antenna to function effectively within the integrated touchscreen structure

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The touchscreen is segmented into distinct functional layers including the antenna layer, separation layer, and conductive layers. This segmentation allows each layer to perform its specific function independently - the antenna layer for FM reception, the separation layer for interference isolation, and the conductive layers for touch sensing - thereby resolving the interference issue while maintaining integration

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2728449B1Terminal with a touch screen including an FM antenna, and method of manufacturing the touchscreen
Publication Date: 2018.12.26 HUAWEI DEVICE CO LTD
  • EP2728449B1 patent drawingFigure 1~2
  • EP2728449B1 patent drawingFigure 3
  • EP2728449B1 patent drawingFigure 4~5

AI summary

Embodiments of the present invention disclose a terminal and a method for making a touchscreen of the terminal, relate to the field of communications technologies and are invented for improving flexibility for receiving an FM broadcast. A terminal includes: a touchscreen; where the touchscreen includes a basal layer, a first conductive layer, a second conductive layer, and a touch layer, an antenna layer, and a separation layer, where the antenna layer is configured to dispose a frequency modulation FM antenna; the antenna layer and the separation layer are disposed between the basal layer and the first conductive layer or disposed between the second conductive layer and the touch layer, and the antenna layer is separated from the first conductive layer or the second conductive layer by using the separation layer; or, the first conductive layer or the second conductive layer is divided into a first area, a second area, and a third area, the antenna layer and the separation layer are disposed in the first area and the second area of the first conductive layer respectively, or the antenna layer and the separation layer are disposed in the first area and the second area of the second conductive layer respectively, and the separation layer in the second area separates the antenna layer in the first area from the third area. The embodiments of the present invention are mainly used in a terminal.