Display Device Front Frame Folding Side Wall Rigidity

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Solution Overview

Problem

Existing display devices face challenges in achieving a slim profile while maintaining sufficient rigidity, particularly for OLED displays, where structural rigidity is compromised when aiming for a thinner design.

Innovation Solution

The display device incorporates a modular cover with a plate portion and side walls, including reinforcement elements and an air gap between the display panel and the front frame, along with a rear frame with a protruding beam, to enhance structural rigidity while maintaining a slim thickness. This configuration includes a reinforcement plate and adhesive plate for improved coupling strength and heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the display device is designed with a thinner profile, then the slimness is improved, but the structural rigidity deteriorates

Engineering Contradiction:
ImprovethicknessVSAvoidstructural rigidity
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The patent introduces a folding side wall structure that extends vertically from the rear frame, adding a third-dimensional element to the otherwise planar thin profile. This folding structure provides structural reinforcement without increasing the horizontal footprint, thereby maintaining slimness while improving rigidity through dimensional complexity.

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

Solution Approach 2:

The patent employs a composite structure combining the rear frame with folding side walls made of rigid materials. This composite design integrates multiple structural elements (frame + folding walls) to achieve enhanced mechanical strength and rigidity while keeping the overall device thickness minimal, resolving the contradiction between thinness and structural integrity.

Inventive Principle:
Principle #40Composite materials

2Strength

If reinforcement structures are added to improve rigidity, then the structural rigidity is improved, but the device complexity increases

Engineering Contradiction:
Improvestructural rigidityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the reinforcement structure with the existing rear frame by integrating folding side walls that extend from the frame itself. This consolidation approach provides structural reinforcement without adding separate, independent components, thereby improving rigidity while minimizing increases in device complexity through unified design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The folding side wall structure is segmented into distinct portions (first side wall, second side wall, bending portion) that can be manufactured and assembled separately but function as an integrated reinforcement system. This segmentation allows for simplified manufacturing of individual parts while achieving complex structural reinforcement when assembled, balancing rigidity improvement with manufacturing simplicity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3163362B1Display device
Publication Date: 2019.03.13 LG ELECTRONICS INC
  • EP3163362B1 patent drawingFigure 1
  • EP3163362B1 patent drawingFigure 2
  • EP3163362B1 patent drawingFigure 3

AI summary

A display device is disclosed. The display device includes a display panel (110), a rear frame (124) in a rear of the display panel (110), and a front frame (122) positioned between the display panel (110) and the rear frame (124) and coupled (DT) with the display panel (110) and the rear frame (124). The front frame (122) includes a plate portion (122P) facing the display panel (110) and a side frame (SF) formed at a side or an edge of the plate portion (122P). The side frame (SF) includes a first side wall (122SW1) adjacent to a side of the display panel (110) and extended from the plate portion (122P), a second side wall (122SW2) located near a side of the first side wall (122SW1) and exposed to outside, and a first bending portion (122C1) extended from the first side wall (122SW1) and connecting the first side wall (122SW1) to an end of the second side wall (122SW2), and a second bending portion (122C2) extended from the other end of the second side wall (122SW2) and bent from the second side wall (122SW2) toward the rear frame (124) and then to the front frame (122).