Flexible Display Rolling Mechanism for Aspect Ratio Adjustment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional multimedia devices with hard displays struggle to adjust their screen aspect ratios to fit the optimal format of content, leading to immersion issues due to blank spaces, and lack a practical standby mode utilization method.

Innovation Solution

A multimedia device with a flexible display that uses a guide bar and motor to adjust the screen size by rolling up or unrolling the display, allowing for optimal aspect ratio adjustment and incorporating a standby mode with partial illumination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hard display is used, then the display structure is stable and simple, but the screen aspect ratio cannot be adjusted to fit different content formats, causing blank spaces and reducing immersion

Engineering Contradiction:

Improvescreen aspect ratio adjustmentVSAvoiddisplay structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The display transitions from a static hard display to a dynamic flexible display that can change its shape and size. The flexible display is rolled up or unrolled around a guide bar to adjust the screen aspect ratio, transforming the display from a fixed structure to an adaptable one that can match different content formats.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent employs a flexible display instead of a rigid hard display. This flexible display can be bent and rolled around a guide bar, enabling the screen to change its physical dimensions and aspect ratio to fit various content formats, thereby resolving the contradiction between adaptability and structural simplicity.

Inventive Principle:

Principle #30Flexible shells and thin films

2Adaptability or versatility

If the flexible display is rolled up to adjust aspect ratio, then the screen fits the content optimally, but the display area decreases

Engineering Contradiction:

Improveaspect ratio fittingVSAvoiddisplay area

Core Design Contradiction:

Adaptability or versatilityVSArea of moving object

Solution Approach 1:

The display system dynamically adjusts between two states: fully unrolled for maximum display area and partially rolled for optimized aspect ratio fitting. This dynamic adjustment allows the system to prioritize either screen size or aspect ratio compatibility depending on the content being displayed, resolving the contradiction between these two parameters.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the display is fully illuminated in standby mode, then the display is ready for immediate use, but energy consumption increases

Engineering Contradiction:

Improvedisplay readinessVSAvoidenergy consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

Instead of fully illuminating the display in standby mode, the system applies partial illumination only to the necessary regions. This partial action approach maintains sufficient display readiness for common operations while significantly reducing energy consumption compared to full illumination.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The display illumination in standby mode operates periodically rather than continuously. The display can be fully illuminated on demand when needed, while during standby it uses minimal or periodic illumination, balancing readiness with energy conservation.

Inventive Principle:

Principle #19Periodic action

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

Enables seamless aspect ratio adjustment to eliminate blank spaces and provides a user-friendly standby mode with partial illumination, enhancing user immersion and device functionality.

Implementation Method 1

motor

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

flexible display, which can be bent or curved

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3503537B1Multimedia device having flexible display and controlling method thereof

Publication Date: 2022.06.22 LG ELECTRONICS INC

Figure 1a~1b
Figure 2
Figure 3

AI summary

Disclosed are a multimedia device including a flexible display and controlling method thereof. The present invention includes a guide bar, a flexible display configured to be rolled up on an outer circumference of the guide bar, the flexible display having a first region rolled up on the outer circumference of the guide bar and a second region not rolled up on the outer circumference of the guide bar, a receiving unit configured to receive a content and metadata corresponding to the content from a source device, and a control unit adjusting a vertical width of the second region of the flexible display in accordance with a preset condition.