Sliding Display Panel Structure With Middle Support Against Creasing

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Solution Overview

Problem

Slidable display devices experience creasing or lifting phenomena on the display panel, particularly in the rolling area, which can lead to reduced durability and increased power consumption.

Innovation Solution

A display device design incorporating a middle support between two roll belts in a two-division structure to minimize creasing or lifting, featuring a base, sliding module, and display panel module with rollers and roll belts, where the middle support supports the end portions of the roll belts and reduces stress on the display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single roll belt is used in the sliding module, then the device complexity is reduced, but creasing or lifting phenomenon occurs on the display panel in the rolling area

Engineering Contradiction:
Improveroll belt structureVSAvoiddisplay panel integrity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The single roll belt is divided into two separate roll belts (first roll belt and second roll belt) that are spaced apart from each other. This segmentation allows the display panel to be supported at multiple points during rolling, preventing creasing or lifting while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the display panel is made more flexible to enable sliding, then the ease of operation is improved, but creasing or lifting phenomenon is intensified toward the center of the display panel

Engineering Contradiction:
Improvesliding functionalityVSAvoiddisplay panel integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The middle support is positioned specifically at the center region of the display panel where creasing or lifting is most intense. This localized support provides additional reinforcement exactly where needed, allowing the panel to remain flexible for sliding while preventing deformation at the vulnerable center area.

Inventive Principle:
Principle #3Local quality

3Device complexity

If the roll belts are positioned closer together, then the device complexity is reduced, but the stress distribution on the display panel becomes uneven

Engineering Contradiction:
Improveroll belt configurationVSAvoidstress distribution on display panel
Core Design Contradiction:
Device complexityVSStress or pressure

Solution Approach 1:

Instead of adjusting only the horizontal positioning of roll belts, the invention introduces a vertical dimension by adding a middle support that extends upward to contact the display panel. This three-dimensional configuration allows for better stress distribution while maintaining a compact horizontal footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20260010196A1Display device
Publication Date: 2026.01.08 LG DISPLAY CO LTD
  • US20260010196A1 patent drawing
  • US20260010196A1 patent drawing
  • US20260010196A1 patent drawing

AI summary

A display device disclosed, the display device includes a base; a sliding module slidably disposed on the base in a first direction; and a display panel module having one side fixed to the base and the other side fixed to the sliding module, wherein the sliding module includes a body, two sidewalls disposed on one side and the other side of the body, a middle support coupled to the body, and two rollers rotatably disposed between the sidewalls and the middle support. The display panel module includes a display panel and a first roll belt and a second roll belt disposed to be spaced apart from each other on a rear surface of the display panel in a second direction. The first roll belt and the second roll belt each includes a first protrusion supported by the middle support and a second protrusion supported by the sidewalls. The creasing or lifting phenomenon formed on a display panel may be minimized by using the middle support.