Flexible Display Support Blocks for One-Directional Bending

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Solution Overview

Problem

Flexible display devices face challenges in maintaining a flat shape while allowing for rollability and bendability, as existing designs often fail to prevent unintended bending or rolling in multiple directions, affecting user convenience.

Innovation Solution

A flexible display device with a support system comprising first and second blocks, where the second blocks are movable to overlap adjacent first blocks, allowing for one-directional bending or rolling while maintaining a flat shape through an elastic member and fixing mechanism, preventing separation and external impacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the flexible display module is made bendable and rollable to improve portability, then user convenience is improved, but the device cannot maintain a flat shape and may bend or roll in unintended directions

Engineering Contradiction:
Improverollability and bendabilityVSAvoidflat shape maintenance
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The support structure is divided into multiple first blocks and second blocks arranged in sequence. These segmented blocks can independently move relative to each other, allowing the display module to be supported in different configurations - either maintaining a flat shape or enabling controlled bending/rolling in one direction, thus resolving the contradiction between adaptability and shape stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second blocks are designed to be movable relative to the first blocks along the first direction, transitioning between a first configuration (overlapping one first block) and a second configuration (overlapping two adjacent first blocks). This dynamic adjustment mechanism allows the system to switch between maintaining a flat shape and enabling one-directional bending/rolling, addressing both requirements simultaneously.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the second blocks are made movable to enable one-directional bending, then rollability is improved, but the blocks may separate from the first blocks in unintended directions

Engineering Contradiction:
Improveone-directional bending capabilityVSAvoidblock separation prevention
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The opening in each first block is selectively positioned and sized to allow movement of the second block only in the intended first direction while blocking movement in other directions. This local structural feature creates asymmetric freedom of movement, enabling one-directional bending while preventing separation in unintended directions, thus resolving the contradiction between adaptability and reliability.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If the support structure is made complex to prevent bending in multiple directions, then flat shape stability is improved, but the device complexity increases

Engineering Contradiction:
Improveflat shape maintenanceVSAvoidsupport structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The opening structure in the first blocks and the movable second blocks work together to automatically constrain the system to one-directional bending without requiring additional complex control mechanisms. The geometric configuration of the openings and blocks themselves provides the constraint, allowing the structure to self-regulate its bending behavior, thus maintaining flat shape stability while minimizing added complexity.

Inventive Principle:
Principle #25Self-service

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 the flexible display device to be securely fixed in a flat shape, preventing unintended bending or rolling in one direction while allowing for rollability and portability, enhancing user convenience and durability.

Implementation Method 1

an elastic member. The elastic member may be disposed in the auxiliary block to provide a force to a second block of the plurality of second blocks in the first direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9836088B2Flexible display device
Publication Date: 2017.12.05 SAMSUNG DISPLAY CO LTD
  • US9836088B2 patent drawing
  • US9836088B2 patent drawing
  • US9836088B2 patent drawing

AI summary

A flexible display device includes: a flexible display module; a first support member below the flexible display module, the first support member including a plurality of first blocks that are arranged adjacent to each other in a first direction; and a second support member including a plurality of second blocks that are arranged to correspond to the plurality of first blocks and arranged adjacent to each other in the first direction, and each of the plurality of second blocks overlaps a corresponding first block of the plurality of first blocks in a first configuration, and the second support member is movable in the first direction between a second configuration, in which a second block of the plurality of second blocks overlaps two adjacent first blocks of the plurality of first blocks, and the first configuration.