Display Panel Cantilever Separators for Sensor Integration

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Solution Overview

Problem

Display panels face challenges in integrating additional functions beyond image display due to limited space and the need for thinner, lighter designs, requiring innovative structural and functional enhancements to accommodate components like sensors or cameras within the display area.

Innovation Solution

A display panel design featuring a substrate with openings, a light-emitting diode structure with organic and inorganic encapsulation layers, and separators with cantilever portions and inorganic insulating layers to create a transmissive area for components like sensors or cameras, allowing for efficient integration of additional functions while maintaining display functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the display area is expanded to provide more display functionality, then the display area increases, but the space available for additional functions (sensors, cameras) decreases

Engineering Contradiction:
Improvedisplay areaVSAvoidintegration of additional functions
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent utilizes the vertical dimension by forming cantilever portions that extend in the first direction (perpendicular to the substrate) from the separator structure. This allows additional functions to be integrated above the display panel plane without increasing the horizontal footprint, effectively resolving the space conflict between display area expansion and functional integration.

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

Solution Approach 2:

The separator is divided into multiple segments including first and second cantilever portions, intermediate portions, and gap regions. This segmentation allows the separator to create distinct functional zones while maintaining structural integrity, enabling multiple functions to coexist within the display panel structure.

Inventive Principle:
Principle #1Segmentation

2Weight of moving object

If the display panel is made thinner and lighter, then the device becomes more portable, but the structural integrity and moisture protection become more challenging

Engineering Contradiction:
Improvedisplay panel weightVSAvoidmoisture protection and structural integrity
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The patent employs a composite encapsulation structure combining organic encapsulation layers with inorganic encapsulation layers. This composite approach provides enhanced moisture protection and structural integrity while maintaining a thin profile, as each material layer contributes different protective properties that complement each other.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The thin-film encapsulation layer and separator structures use thin film technologies to provide protection against moisture and structural support without adding significant weight or thickness. The cantilever portions and encapsulation layers are designed as thin films that maintain reliability while preserving the thin, lightweight characteristic.

Inventive Principle:
Principle #30Flexible shells and thin films

3Adaptability or versatility

If separators with cantilever portions are introduced to enable component integration, then functional integration improves, but the structural complexity increases

Engineering Contradiction:
Improvecomponent integration capabilityVSAvoidseparator structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The separator structure is designed to serve multiple functions simultaneously: it provides structural support, creates gaps for component integration, forms part of the encapsulation system, and maintains electrical isolation. By making the separator multi-functional, the patent reduces the need for additional separate components, thereby limiting the increase in overall device complexity despite the sophisticated geometry.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables the integration of components like sensors or cameras within the display panel, enhancing functionality without compromising the display area's performance, and effectively managing moisture and structural integrity through the use of inorganic encapsulation and separator designs.

Implementation Method 1

a light-emitting diode arranged in a display area around the opening and including a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 2

a thin-film encapsulation layer on the light-emitting diode and including an organic encapsulation layer and at least one inorganic encapsulation layer

Methodology Applied
Scientific EffectPhysical containment: Physical Containment

Data Source

PatentUS20240324410A1Display panel and electronic apparatus including the same
Publication Date: 2024.09.26 SAMSUNG DISPLAY CO LTD
  • US20240324410A1 patent drawing
  • US20240324410A1 patent drawing
  • US20240324410A1 patent drawing

AI summary

A display panel includes a light-emitting diode arranged in a display area around an opening of a substrate, a thin-film encapsulation layer on the light-emitting diode, a first separator and a second separator arranged in a first non-display area between the opening of the substrate and the display area, wherein the first separator includes a first inorganic insulating layer and a second inorganic insulating layer on an upper surface of the first inorganic insulating layer and arranged in a first direction perpendicular to the substrate, wherein the first separator includes a first cantilever portion and a second cantilever portion opposite to the first cantilever portion, and wherein the first cantilever portion has a first gap in the first direction from a lower layer under the first separator, and has a first length in a second direction crossing the first direction.