Rollable Display Self-Standing Guide Unit

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Solution Overview

Problem

Portable electronic devices like laptops and tablets face challenges in maintaining a rollable display panel upright without additional support structures, which increases size and weight, hindering portability and convenience.

Innovation Solution

A self-standing guide unit is integrated to curve the rollable display panel into an arc shape, allowing it to stand upright without external support, using guide rollers and a torsion spring mechanism for easy unrolling and rolling, and a detachable keyboard system for enhanced portability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a hinged folding unit is used to maintain the rollable display panel upright, then the display panel can be stably maintained in an unrolled state, but the structure becomes complex and the size becomes large

Engineering Contradiction:

Improvestability of unrolled stateVSAvoidstructure complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent extracts the essential function of maintaining the display panel upright by utilizing the flexibility and self-weight of the display panel itself, rather than incorporating a complex hinged folding unit. The display panel is designed to be pulled down from a retracted position and held upright by its own structural properties and the force of gravity, eliminating the need for additional support mechanisms.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The display panel serves its own support function by using its flexible nature and weight to maintain its upright position. The panel's own physical properties are leveraged to provide the necessary stability without requiring external support structures, making the system self-sufficient and reducing overall complexity.

Inventive Principle:

Principle #25Self-service

2Stability of the object's composition

If a hinged folding unit is used to maintain the rollable display panel upright, then the display panel can be stably maintained in an unrolled state, but the size of the device becomes large

Engineering Contradiction:

Improvestability of unrolled stateVSAvoiddevice size

Core Design Contradiction:

Stability of the object's compositionVSLength of stationary object

Solution Approach 1:

The patent removes the unnecessary hinged folding unit that would increase device size, retaining only the essential components needed for the display panel to maintain its upright position. This extraction of non-essential elements reduces the overall footprint of the device while preserving the required functionality.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The display panel utilizes its flexible nature to achieve stability without rigid support structures. The flexible display can be pulled down and held in place by its own properties and the force of gravity, eliminating the need for bulky support mechanisms and reducing device size.

Inventive Principle:

Principle #30Flexible shells and thin films

3Stability of the object's composition

If additional support structures are used to maintain the rollable display panel upright, then the display panel can be kept standing, but the weight of the device increases

Engineering Contradiction:

Improveability to stand uprightVSAvoiddevice weight

Core Design Contradiction:

Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The display panel uses its own weight and flexible properties to maintain its upright position, rather than relying on additional support structures that would add weight. The panel's self-weight acts as the supporting force, making the system weight-efficient while maintaining stability.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent utilizes the force of gravity acting on the display panel itself as a counterbalancing force to maintain its upright position. The weight of the display panel creates a stabilizing moment that prevents it from collapsing, eliminating the need for additional counterweight mechanisms.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

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 significantly reduces the size and weight of the device, enhances portability, and simplifies operations by allowing the display to stand upright on its own, while also enabling easy detachment and reattachment of the keyboard for versatile usage.

Implementation Method 1

using guide rollers and a torsion spring mechanism for easy unrolling and rolling

Methodology Applied

Scientific EffectTorsion spring: Torsion Spring

Data Source

PatentUS11720148B2Portable electronic device having rollable display structure

Publication Date: 2023.08.08 LG ELECTRONICS INC

AI summary

A portable electronic device having a rollable display structure is proposed. When the rollable display panel is unrolled from the display drum inside the housing and drawn out of the housing, a self-standing guide unit guides the rollable display panel to be curved in an arc shape so that the rollable display panel stands upright on its own, whereby the rollable display panel may be maintained in an unrolled state without an additional structure. In this way, the size and weight of a product may be reduced, so that portability of the portable electronic device may be improved.