Motorized Rollable Front Cover for Display Panel Protection

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Solution Overview

Problem

Existing display devices lack effective protective and storage structures that allow for easy concealment and deployment of the display panel while maintaining a compact form factor.

Innovation Solution

A display device design featuring a display panel, a module cover, a frame, and a front cover that can be opened or closed, utilizing a bar, rollers, pulleys, and a motor system to roll or unroll the front cover, along with a foldable link mechanism for up-down movement, providing a protective and storage solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a front cover is added to protect the display panel, then protection capability is improved, but device complexity increases

Engineering Contradiction:
Improveprotection capabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The front cover is designed to be movable rather than fixed, allowing it to slide along guide rails and be rolled up via a roller mechanism. This dynamic design provides protection when needed while allowing easy access when not needed, resolving the contradiction between protection capability and device complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The front cover protection system is divided into separate functional components: the cover itself, guide rails for movement, a roller for rolling, and a motor for actuation. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a movable front cover system is implemented, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveconcealment and deployment easeVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The motorized roller system automatically rolls up or unrolls the front cover without requiring manual intervention. The system serves itself by using the motor to perform the repetitive rolling action, making operation extremely easy while containing the complexity within the automated mechanism rather than requiring complex manual controls.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical operation of rolling and unrolling the front cover is replaced with an automated motor-driven system. This substitution eliminates the need for complex manual mechanisms while providing smooth, controlled movement through electrical actuation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the display panel is made concealable, then adaptability is improved, but device complexity increases

Engineering Contradiction:
ImproveconcealabilityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display panel system transitions from a static fixed configuration to a dynamic concealable configuration through the movable front cover. The cover can be positioned in multiple states (fully closed, partially open, fully rolled up), providing adaptability for different usage scenarios while using relatively simple mechanical components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The front cover can be rolled up and stored within the device housing when not in use, similar to a nested doll structure. This nesting approach allows the concealable feature to be integrated into the existing device form factor without requiring excessive additional space or complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 offers a compact and flexible display device with a protective structure for the panel and a storage mechanism, allowing for easy concealment and deployment, enhancing usability and protection.

Implementation Method 1

a roller disposed adjacent to a lower end of the frame and configured to roll or unroll the front cover

Methodology Applied
Scientific EffectRolling: Roller

Implementation Method 2

a bar extending in a left-right direction of the display panel and sliding on the frame

Methodology Applied
Scientific EffectSliding: Friction

Implementation Method 3

a guide roller sliding and moving on the vertical frame, the guide roller being fixed to the bar

Methodology Applied
Scientific EffectSliding: Friction

Implementation Method 4

a lower pulley installed at the vertical frame adjacent to the roller; an upper pulley installed adjacent to an upper end of the vertical frame; and a belt configured to connect the lower pulley and the upper pulley

Methodology Applied
Scientific EffectPulley mechanism: Pulley

Implementation Method 5

a motor mounted on the vertical frame and configured to provide a rotational force to the lower pulley

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 6

a joint disposed between the motor and the lower pulley, wherein the joint may be configured to transfer the rotational force provided by the motor to the lower pulley

Methodology Applied
Scientific EffectGear transmission: Gear

Data Source

PatentEP3951753B1Display device
Publication Date: 2023.10.04 LG ELECTRONICS INC
  • EP3951753B1 patent drawingFigure 1
  • EP3951753B1 patent drawingFigure 2
  • EP3951753B1 patent drawingFigure 3

AI summary

A display device is disclosed. The display device includes a display panel; a module cover disposed behind the display panel and coupled to the display panel; a frame disposed behind the module cover and coupled to the module cover; and a front cover configured to close or open the display panel while moving on the frame in an up-down direction.