Stretchable Display Panel Layout for Resolution Retention

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Stretchable display devices experience a decrease in resolution when stretched due to the increase in display panel size, as the total number of pixels remains constant, unlike foldable or rollable displays where the size does not change.

Innovation Solution

A stretchable display panel design incorporating multiple light-emitting modules with elastic connectors and satellite portions, allowing for overlapping and non-overlapping configurations to maintain resolution by adjusting the activation of light-emitting elements when stretched.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the display panel is stretched to increase its size, then the display area is improved, but the resolution deteriorates because the total number of pixels remains constant

Engineering Contradiction:
Improvedisplay areaVSAvoidresolution
Core Design Contradiction:
Area of moving objectVSManufacturing precision

Solution Approach 1:

The display panel is divided into multiple light-emitting modules, each containing a subset of the total pixels. When stretched, different modules can be selectively activated to maintain resolution in the un-stretched direction while expanding the display area in the stretched direction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The display panel incorporates a stretchable structure that can dynamically change its shape between stretched and un-stretched states. The light-emitting modules are configured to adapt their activation patterns based on the current state, allowing the display to maintain optimal resolution regardless of whether it is stretched or not.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If multiple light-emitting modules are used to maintain resolution during stretching, then the resolution is improved, but the device complexity increases

Engineering Contradiction:
ImproveresolutionVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Multiple light-emitting modules are arranged in a nested or overlapping configuration where modules can be positioned at different depths or layers. This allows the modules to share common structures and control circuits, reducing overall complexity while maintaining the ability to selectively activate modules for resolution maintenance.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 design maintains consistent resolution even when the display panel is stretched, ensuring that the display quality is preserved across different states without decreasing pixel visibility.

Implementation Method 1

a plurality of first connectors extending from the first body in different directions and each having a predetermined elastic force

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS20240194845A1Stretchable display panel
Publication Date: 2024.06.13 KOREA ADVANCED INST OF SCI & TECH
  • US20240194845A1 patent drawing
  • US20240194845A1 patent drawing
  • US20240194845A1 patent drawing

AI summary

A stretchable display panel including a first light-emitting module and a second light-emitting module. The first light-emitting module includes a first body, a plurality of first connectors extending from the first body in different directions and each having a predetermined elastic force, first satellite portions extending from the first body in directions different from the directions of the plurality of first connectors, a first adhesive member disposed on the first body, and a first light-emitting element disposed on the first satellite portion. The second light-emitting module includes a second body disposed on the first adhesive member, a plurality of second connectors extending from the second body in different directions and each having a predetermined elastic force, a second satellite portion extending from the second body in a direction different from the directions of the plurality of second connectors and not overlapping the first satellite portion.