FPC Board Slits for Curved Display Stress Reduction

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Solution Overview

Problem

Existing curved display apparatuses face stress issues with FPC boards connected to curved display panels, leading to potential troubles such as peeling off or broken wiring, as they cannot effectively reduce the stress applied to these boards.

Innovation Solution

Incorporating slits in the FPC boards that are connected to the curved side of the display panel, which reduces the stress by distributing it across multiple regions and terminals, thereby minimizing the risk of peeling off or disconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If FPC boards are connected to the curved side of the display panel, then the display apparatus can achieve a curved display structure, but stress is applied to the FPC boards causing potential troubles

Engineering Contradiction:
Improvecurved display structureVSAvoidFPC board reliability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The FPC board is divided into multiple regions by introducing slits, which segment the continuous board into separate zones. This segmentation allows stress to be distributed across multiple smaller regions rather than concentrated across the entire board, reducing the overall stress impact on the FPC board while maintaining the curved display structure.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If the FPC board is made larger to cover the curved side, then connection coverage is improved, but stress applied to the FPC board increases

Engineering Contradiction:
ImproveFPC board connection coverageVSAvoidstress on FPC board
Core Design Contradiction:
Area of stationary objectVSStress or pressure

Solution Approach 1:

By introducing slits that divide the FPC board into multiple regions, the stress distribution is optimized across the entire area. Each segmented region experiences reduced stress compared to a continuous board of the same size, allowing the FPC board to maintain adequate connection coverage while reducing overall stress through the segmented structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The slits are strategically positioned to create local variations in the FPC board structure. These local modifications allow different regions of the board to handle stress differently, with the slit regions acting as stress relief zones while maintaining connection coverage in critical areas.

Inventive Principle:
Principle #3Local quality

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

The solution effectively reduces the stress on FPC boards in a curved state, preventing issues like peeling off or broken wiring, while maintaining signal transmission efficiency and reducing costs by optimizing the board's dimensions and configuration.

Implementation Method 1

the FPC board is provided with a slit for reducing a stress applied to the FPC board

Methodology Applied
Scientific EffectStress distribution:

Data Source

PatentUS10795224B2Curved display apparatus
Publication Date: 2020.10.06 TRIVALE TECHNOLOGIES LLC
  • US10795224B2 patent drawing
  • US10795224B2 patent drawing
  • US10795224B2 patent drawing

AI summary

A curved display apparatus includes a display panel curved along a first direction, and an FPC board used for driving the display panel. The FPC board is connected to a side of a curved side of the display panel. The FPC board is provided with the slits for reducing the stress applied to the FPC board.