Flexible Display Insulating Base with Non-Linear Lines

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Solution Overview

Problem

Conventional flexible display devices lack elasticity, making it difficult to deform them into complex three-dimensional curved surfaces such as spherical shapes.

Innovation Solution

A display device structure featuring a flexible insulating base with non-linear line portions connecting island portions, allowing the display panel to expand and contract, thereby achieving elasticity and the ability to deform into various shapes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the display panel is deformed into complex three-dimensional curved surfaces, then adaptability is improved, but damage to pixel circuit and electrical connections deteriorates

Engineering Contradiction:
Improveability to deform into complex shapesVSAvoidelectrical connection reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The insulating base is designed as a flexible structure comprising island portions and connecting line portions, which can elastically deform into complex three-dimensional shapes. This flexible insulating base protects the pixel circuits and electrical connections while accommodating deformation, preventing damage to the embedded electronic components during transformation into spherical or curved surfaces.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The pixel circuits and electrical connections are embedded within or between the island portions of the insulating base, creating a nested structure where the sensitive electronic components are protected by the flexible insulating material. This nesting arrangement allows the outer insulating structure to deform while the inner electronic components remain protected.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of manufacture

If linear line portions are used to connect island portions, then manufacturing simplicity is improved, but elasticity and deformation capability deteriorates

Engineering Contradiction:
Improveline portion structureVSAvoiddeformation capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The line portions connecting the island portions are designed with curved or meandering geometries rather than straight linear paths. This curvature allows the line portions to accommodate elastic deformation more effectively, enabling the insulating base to transform into complex three-dimensional shapes while maintaining electrical connectivity between island portions.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS20220415988A1Display device
Publication Date: 2022.12.29 JAPAN DISPLAY INC
  • US20220415988A1 patent drawing
  • US20220415988A1 patent drawing
  • US20220415988A1 patent drawing

AI summary

According to one embodiment, a display device comprises an insulating base, a plurality of light-emitting elements, a plurality of pixel circuits, and a plurality of lines. The insulating base includes a plurality of first island portions and a plurality of non-linear line portions connecting two of the first island portions. The light-emitting elements are arranged in each of the first island portions. The pixel circuits are arranged in each of the first island portions and driving the light-emitting elements. The lines are arranged in each of the line portions and connected to the pixel circuits of the two first island portions connected by the line portions.