Display Container Member with Mold Frame for Impact Protection

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Solution Overview

Problem

Existing container members for display panels either become bulky to absorb external impacts effectively or fail to prevent deformation due to lack of rigidity, and may damage the panel during assembly.

Innovation Solution

A container member design featuring a metal frame with a bottom opening and a mold frame interposed between the metal frame and the display panel, along with a buffer tape, which provides structural reinforcement and minimizes deformation by attenuating external impacts, while maintaining a compact size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a metal frame is used to prevent deformation by external stress, then rigidity is improved, but the display panel may be damaged during assembly process

Engineering Contradiction:
ImproverigidityVSAvoiddamage to display panel
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

A mold frame is introduced as an intermediary component between the metal frame and the display panel. The mold frame serves as a buffer that absorbs assembly forces and prevents direct contact between the rigid metal frame and the fragile display panel, thereby preventing damage while maintaining structural support.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mold frame is positioned in advance between the metal frame and display panel to provide cushioning protection. This pre-positioned buffer structure prevents damage before it can occur during the assembly process, rather than attempting to protect the panel after damage has been inflicted.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If the metal frame is made sufficiently thick to absorb external impact, then impact resistance is improved, but the entire size is increased

Engineering Contradiction:
Improveimpact resistanceVSAvoidsize of container member
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The impact absorption function is segmented between two components: the metal frame provides structural support and primary impact resistance, while the mold frame provides secondary cushioning. This segmentation allows each component to be thinner than a single thick frame would require, reducing overall size while maintaining impact resistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The container member uses a composite structure combining metal frame and mold frame materials with different mechanical properties. The metal frame provides rigidity and primary impact resistance, while the mold frame material provides complementary cushioning, creating a synergistic effect that improves impact resistance without increasing size.

Inventive Principle:
Principle #40Composite materials

3Ease of manufacture

If a mold frame is used to facilitate assembly and minimize size, then ease of manufacture and compactness are improved, but rigidity is insufficient to prevent deformation

Engineering Contradiction:
Improveassembly facilitationVSAvoidrigidity
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The metal frame and mold frame are merged into a cooperative structure where the metal frame provides the necessary rigidity and structural support, while the mold frame provides assembly facilitation and size minimization benefits. Together, they achieve both ease of manufacture and sufficient rigidity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The metal frame serves multiple functions: providing structural support, preventing deformation through its rigidity, and working in conjunction with the mold frame to enable easy assembly. This multi-functionality allows a single component to address multiple requirements that would otherwise require separate specialized components.

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

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 deformation and damage to the display panel during external impacts, such as drops, while maintaining a slim profile and ensuring assembly safety.

Implementation Method 1

a buffer member (300) made of an elastic material and located between the metal frame and the display panel

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

a mold frame (220) located inside the metal frame and between the display panel and the buffer member

Methodology Applied
Scientific EffectImpact attenuation: Damping

Data Source

PatentEP2322975B1Container member, method of manufacturing the same, and display device having the same
Publication Date: 2019.03.27 SAMSUNG DISPLAY CO LTD
  • EP2322975B1 patent drawingFigure 1
  • EP2322975B1 patent drawingFigure 2A~2B
  • EP2322975B1 patent drawingFigure 3A

AI summary

A display device that includes a display panel and a container member that accommodates the display panel, where the container member can effectively absorb an external impact to sufficiently protect the display panel from damage and minimize deformation caused by an external stress, a method of manufacturing the same. The container member includes a metal frame including a space that accommodates the display panel, a plurality of sides and a bottom having a first opening; and a mold frame arranged between the sides of the metal frame and sides of the display panel. The display device may also include a buffer tape within the first opening. The mold frame is preferably produced by an injection molding technique.