Stretchable Display Pixel Islands with Particle Blocking Structures

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Solution Overview

Problem

Stretchable display panels face challenges in maintaining the integrity and display quality of pixel islands when subjected to deformation, as the island-shaped light-emitting regions are prone to deformation under stretching or compression.

Innovation Solution

The display panel incorporates a substrate with pixel islands and blocking structures that include a substrate substance filled with spherical particles. The blocking structures are designed to enclose the pixel islands, reducing the effect of stretching or compression by dispersing deformation stresses through the movement of spherical particles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display panel is made stretchable to adapt to various surfaces, then the adaptability is improved, but the pixel islands are prone to deformation under stretching or compression

Engineering Contradiction:

Improveadaptability to surface shapesVSAvoidintegrity of pixel islands

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The blocking structures are divided into multiple segments (first blocking structures and second blocking structures) that can independently deform. This segmentation allows each block to handle stress separately, preventing force concentration that would deform the pixel islands, thus maintaining pixel integrity while enabling overall panel stretchability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blocking structures are designed with flexible characteristics, allowing them to deform elastically under stretching or compression forces. This flexibility enables the blocking structures to absorb deformation energy without transmitting excessive stress to the pixel islands, protecting the pixels while maintaining the stretchable nature of the display panel.

Inventive Principle:

Principle #30Flexible shells and thin films

2Reliability

If the blocking structures are designed to enclose pixel islands to protect them, then the protection of pixel islands is improved, but the blocking structures themselves are prone to deformation

Engineering Contradiction:

Improveprotection of pixel islandsVSAvoidstrength of blocking structures

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The blocking structures utilize composite material characteristics by combining rigid enclosing features with flexible deformation capabilities. This composite design allows the blocking structures to maintain sufficient strength for enclosure and protection while incorporating flexibility to withstand stretching or compression without permanent deformation.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The blocking structures are designed with inherent cushioning capabilities through their flexible nature, providing beforehand protection against deformation forces. This prior cushioning allows them to absorb and dissipate stress from stretching or compression before the forces can reach the pixel islands, ensuring both structural integrity and pixel protection.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Shape

If the blocking structures are made rigid to maintain shape, then the shape stability is improved, but the deformation stresses cannot be dispersed effectively

Engineering Contradiction:

Improveshape stability of blocking structuresVSAvoiddeformation stresses on pixel islands

Core Design Contradiction:

ShapeVSObject-affected harmful factors

Solution Approach 1:

The blocking structures transition from a static rigid design to a dynamic flexible design that can adapt its shape under external forces. This dynamic characteristic allows the blocking structures to deform elastically during stretching or compression, dispersing deformation stresses away from the pixel islands while maintaining shape stability during normal operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The blocking structures incorporate parameter changes in their mechanical properties, allowing them to change from a rigid state during normal operation to a flexible state under deformation forces. This parameter change enables effective stress dispersion during stretching or compression while maintaining shape stability under normal conditions, protecting the pixel islands from harmful deformation stresses.

Inventive Principle:

Principle #35Parameter changes

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

This configuration enhances the display effect by minimizing the deformation of sub-pixels and improving the strength of the blocking structures, thereby reducing the impact of stretching or compression on the pixel islands.

Implementation Method 1

The blocking structures are designed to enclose the pixel islands, reducing the effect of stretching or compression by dispersing deformation stresses through the movement of spherical particles

Methodology Applied

Scientific EffectParticle movement and stress dispersion:

Data Source

PatentUS20250204166A1Display panel and display device

Publication Date: 2025.06.19 HKC CORP LTD

AI summary

A display panel and an electronic device. The display panel includes: a substrate; a plurality of pixel islands, arranged on a side of the substrate; wherein each pixel island comprises at least one sub-pixel; and a plurality of blocking structures; wherein each blocking structure is disposed protruding from the substrate and encloses to form a blocking region; each blocking structure includes a substrate substance filled with spherical particles. A positive projection of each pixel island on the substrate is disposed within a positive projection of a corresponding blocking region on the substrate.