Display FPCB Guide Structure for Uniform Folding and Antenna Spacing

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Solution Overview

Problem

The internal space constraints in portable communication devices, such as smartphones, lead to variations in antenna communication characteristics due to the use of housing parts as antennas, affecting uniformity and assembly precision.

Innovation Solution

A display device with a display FPCB module featuring a guide structure for uniform folding and assembly, ensuring consistent communication characteristics by managing the folded state and distance from metallic housing walls used as antennas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If housing parts are used as antennas to reduce internal space, then device weight and size are optimized, but communication characteristics become non-uniform

Engineering Contradiction:
Improveinternal spaceVSAvoidcommunication characteristics uniformity
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

A guide structure is introduced as an intermediary component between the display FPCB module and the housing. This guide structure standardizes the folded state of the FPCB module, ensuring consistent positioning and distance from the housing antenna, thereby maintaining uniform communication characteristics while utilizing housing space efficiently

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide structure controls and standardizes the spatial parameters (position and distance) of the display FPCB module in its folded state. By fixing these parameters, the invention ensures that the FPCB module maintains a consistent relationship with the housing antenna, resolving the non-uniformity issue

Inventive Principle:
Principle #35Parameter changes

2Volume of moving object

If display FPCB module is folded to fit internal space, then device compactness is improved, but assembly precision varies

Engineering Contradiction:
Improvedevice compactnessVSAvoidassembly precision
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The guide structure serves as a mediating component that standardizes the folding process and final position of the display FPCB module. It provides reference surfaces and constraints that ensure consistent assembly precision across all devices, eliminating variations caused by manual folding

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide structure is pre-installed on the housing before the display FPCB module is folded and assembled. This preliminary action establishes fixed reference points that guide the folding process and ensure precise positioning, making the assembly process more consistent and repeatable

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If manual assembly is used for display FPCB module folding, then flexibility is maintained, but productivity decreases

Engineering Contradiction:
Improveassembly flexibilityVSAvoidmass production efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The guide structure acts as a standardized intermediary component that can be integrated into automated assembly equipment. It provides fixed reference surfaces and constraints that guide robotic manipulators or automated folding devices, enabling mass production while maintaining assembly precision and flexibility

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide structure serves multiple functions: it guides the folding process, standardizes the final position, provides assembly references, and can be integrated into automated equipment. This multi-functionality makes it suitable for both flexible manual assembly and high-volume automated production

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

Data Source

PatentUS20250392659A1Display device and portable communication device including the same
Publication Date: 2025.12.25 SAMSUNG ELECTRONICS CO LTD
  • US20250392659A1 patent drawing
  • US20250392659A1 patent drawing
  • US20250392659A1 patent drawing

AI summary

Disclosed are a display device including a display module including a panel part, in which a plurality of pixels are disposed, and a rear part supporting the panel part, and a display flexible printed circuit board (FPCB) module connected to the display module, and the display FPCB module may include a guide structure disposed at a first position of a rear surface of the display FPCB module to contact a portion of the rear part of the display module when the display FPCB module is in a folded state, a signal line connected to the guide structure, and a connector connected to the signal line, and a portable communication device including the same.