Display Device Thin Bezel Segmentation and Chassis Protection

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Solution Overview

Problem

There is a challenge in creating a display device with a thin bezel while maintaining the durability of wiring and driving circuits in the non-display area, and ensuring easy reassembly in case of failure.

Innovation Solution

The display device incorporates a first and second substrate with pixels between them, conductive pads for signal transmission, a flexible circuit film connected via an anisotropic conductive film, and a protective film with adhesive layers to secure the chassis member, allowing for a thin bezel design without compromising durability and facilitating reassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the bezel width is reduced to achieve a thin bezel design, then the aesthetic design and space efficiency are improved, but the durability of wiring and driving circuits in the non-display area deteriorates

Engineering Contradiction:

Improvebezel widthVSAvoiddurability of wiring and driving circuits

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The patent divides the non-display area into separate modular regions, with wiring and driving circuits positioned in dedicated zones away from the thin bezel edge. This segmentation allows the bezel to be thin while circuits are protected in separate areas, resolving the contradiction between aesthetic thinness and circuit durability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces protective structures and routing paths as intermediary elements between the thin bezel and the wiring/driving circuits. These intermediaries shield the circuits from mechanical stress and damage while maintaining the thin bezel appearance, thus protecting reliability without compromising the aesthetic feature.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Shape

If the bezel width is reduced to achieve a thin bezel design, then the aesthetic design is improved, but the ease of reassembly when failure occurs deteriorates

Engineering Contradiction:

Improvebezel widthVSAvoidreassembly ease

Core Design Contradiction:

ShapeVSEase of repair

Solution Approach 1:

The patent segments the display device into modular components with clear separation between the display area, non-display area, and chassis member. This modular segmentation enables easy disassembly and reassembly for repair purposes while maintaining the thin bezel design, as each module can be independently accessed and replaced.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates preliminary design features such as accessible connection points and standardized interfaces in the non-display area that facilitate future reassembly operations. These preliminary arrangements make repair and reassembly straightforward even with a thin bezel configuration.

Inventive Principle:

Principle #10Preliminary action

3Shape

If wiring and driving circuits are positioned in the non-display area to enable thin bezel, then the aesthetic design is improved, but the risk of damage to these components increases

Engineering Contradiction:

Improvebezel widthVSAvoiddamage risk to wiring and circuits

Core Design Contradiction:

ShapeVSObject-affected harmful factors

Solution Approach 1:

The patent implements protective measures in advance by positioning wiring and driving circuits in protected zones within the non-display area, and by incorporating protective structures that cushion these components from potential damage. This beforehand protection allows the circuits to be located in the non-display area for aesthetic purposes while mitigating the increased damage risk.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent introduces protective barriers and routing structures as intermediaries between external harmful factors and the wiring/driving circuits in the non-display area. These intermediaries absorb or deflect potential damage while allowing the thin bezel design to proceed, thus reducing the damage risk to protected components.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This configuration enables the creation of a display device with a thin bezel that maintains the durability of non-display area components and allows for easy reassembly, enhancing both design aesthetics and functional reliability.

Implementation Method 1

the flexible circuit film and the plurality of conductive pads are attached by an anisotropic conductive film

Methodology Applied

Scientific EffectAnisotropic conduction: Anisotropy

Implementation Method 2

the flexible circuit film and the backlight unit are attached by an adhesive layer

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS10578901B2Display device

Publication Date: 2020.03.03 SAMSUNG DISPLAY CO LTD

AI summary

A display device includes a first substrate and a second substrate facing each other, a plurality of pixels disposed between the first substrate and the second substrate, a plurality of conductive pads which transmits signals to the plurality of pixels, a flexible circuit film connected with the plurality of conductive pads, a protective film disposed on the flexible circuit film on lateral sides of the first substrate and the second substrate, and a chassis member disposed on the protective film on lateral sides of the first substrate and the second substrate.