Flexible Display Bracket Rib Design for Curvature Control

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Solution Overview

Problem

Existing display devices with flexible OLED panels face challenges in freely changing curvature, leading to separation of side surfaces and exposure issues due to bending, which affects the mounting of electronic components and the integrity of the rear cover.

Innovation Solution

A display device design featuring a flexible OLED panel with a coupled flexible plate and bracket, a rear cover that includes protruding side parts and ribs, and a sliding structure to manage curvature changes, minimizing separation and exposure risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display panel is made flexible to enable curvature change, then adaptability is improved, but structural stability deteriorates causing side surface separation

Engineering Contradiction:
Improvecurvature change capabilityVSAvoidside surface separation
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The bracket is divided into multiple sections including bending portions and rigid portions. The bending portions allow curvature change while the rigid portions maintain structural stability. The rear cover is also segmented with side parts that can move independently to accommodate panel bending without causing separation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bracket and rear cover are designed with movable elements that adapt to the display panel's curvature changes. The bending portions of the bracket and the side parts of the rear cover can dynamically adjust their positions to maintain structural integrity during curvature transitions.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the display panel is bent to achieve desired curvature, then adaptability is improved, but harmful effects increase due to panel exposure

Engineering Contradiction:
Improvecurvature adjustmentVSAvoidpanel exposure
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The rear cover's side parts are designed to move in advance before the display panel is fully bent, preventing panel exposure. The sliding structure allows the side parts to preemptively cover the panel edges as curvature changes occur.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The sliding structure acts as an intermediary mechanism between the display panel and the rear cover. It mediates the interaction by allowing controlled movement of the rear cover side parts to prevent direct exposure of the panel during bending.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the bracket structure is made rigid to prevent separation, then structural stability is improved, but adaptability deteriorates limiting curvature change

Engineering Contradiction:
Improvebracket stabilityVSAvoidcurvature change freedom
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

Different portions of the bracket have different mechanical properties. The bending portions are designed to be flexible to enable curvature change, while the rigid portions maintain structural stability. This local differentiation of mechanical properties allows the bracket to simultaneously achieve both adaptability and stability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12189434B2Display device
Publication Date: 2025.01.07 LG ELECTRONICS INC
  • US12189434B2 patent drawing
  • US12189434B2 patent drawing
  • US12189434B2 patent drawing

AI summary

A display device may include: a flexible display panel having a left side and a right side opposite to each other in a curved direction of the display panel; a flexible plate disposed at a rear of the display panel and to which the display panel is coupled; a flexible bracket disposed at a rear of the plate and fixed to the plate at a position adjacent to a periphery of the bracket; and a rear cover covering a rear of the bracket and fixed to the bracket at a position adjacent to a central portion of the bracket, wherein: the rear cover may include a first side part protruding from a left side of the rear cover toward the bracket; and the bracket may include a first bending portion protruding rearward from a left side of the bracket, and a first rib provided inside the first bending portion and disposed opposite the first bending portion with respect to the first side part.