Hygroscopic Member Placement in Ultra-Thin Display Side Frame

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Solution Overview

Problem

Large-screen, ultra-thin display devices face challenges in maintaining structural rigidity and preventing damage to the display panel, particularly due to the lack of a backlight unit and increased vulnerability to moisture-induced issues.

Innovation Solution

A display device design incorporating a display panel with a side frame that includes horizontal and vertical parts, and a hygroscopic member positioned between the rear surface of the panel and the side frame to absorb moisture, along with a material complexed panel for enhanced structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the display device is made ultra-thin by removing the backlight unit, then the thickness is reduced and luminance characteristics are improved, but structural rigidity deteriorates and the panel becomes vulnerable to damage

Engineering Contradiction:

ImprovethicknessVSAvoidstructural rigidity

Core Design Contradiction:

Volume of moving objectVSStrength

Solution Approach 1:

The patent applies composite materials by combining the display panel with a rear cover assembly that includes a hygroscopic member and structural support components. This composite structure provides the necessary rigidity and protection while maintaining the ultra-thin profile of the display portion, resolving the contradiction between thinness and structural strength.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The hygroscopic member is positioned beforehand between the display panel and rear cover to absorb moisture and prevent damage. This preventive measure cushions the panel against environmental hazards before they can cause harm, maintaining both thinness and reliability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Volume of moving object

If the display device is made ultra-thin, then the device becomes more compact and aesthetically appealing, but vulnerability to moisture-induced issues increases

Engineering Contradiction:

ImprovethicknessVSAvoidmoisture ingress

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The hygroscopic member acts as an intermediary between the display panel and the external environment. It absorbs moisture that attempts to penetrate into the ultra-thin device, preventing direct contact between harmful moisture and sensitive display components, thus resolving the contradiction between thinness and moisture resistance.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the potentially harmful presence of moisture into a beneficial function by using the hygroscopic member to actively absorb and manage moisture. This transforms the threat of moisture ingress into a controlled environmental management system, allowing the ultra-thin design to maintain reliability.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Strength

If structural reinforcement is added to prevent panel damage, then structural rigidity is improved, but device complexity and size increase

Engineering Contradiction:

Improvestructural rigidityVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The rear cover assembly serves multiple functions simultaneously: it provides structural support for rigidity, houses the hygroscopic member for moisture control, and acts as a protective barrier. This multi-functionality achieves structural reinforcement without proportionally increasing complexity, as one component structure accomplishes multiple protective roles.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the structural support function with the environmental protection function by integrating the hygroscopic member within the rear cover assembly. This combination creates a unified structure that provides both mechanical strength and moisture protection, avoiding the need for separate complex reinforcement systems.

Inventive Principle:

Principle #5Merging (Combining)

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 ensures structural rigidity and prevents damage to the display panel by addressing moisture ingress and enhancing the panel's structural integrity, thereby extending its service life and reliability.

Implementation Method 1

a hygroscopic member positioned between the rear surface of the panel and the side frame to absorb moisture

Methodology Applied

Scientific EffectHygroscopic absorption: Absorption (physical)

Data Source

PatentUS20240164180A1Display device

Publication Date: 2024.05.16 LG ELECTRONICS INC

AI summary

A display device is provided. The display device according to the present disclosure includes: a display panel having at least one corner; a side frame including a horizontal part extending along one side of the display panel from the at least one corner and facing a rear surface of the display panel, and a vertical part extending in a direction intersecting the horizontal part and covering the one side of the display panel; and a hygroscopic member making contact with the vertical part and fixed to the horizontal part at a position between the rear surface of the display panel, which is adjacent to the at least one corner, and the horizontal part of the side frame.