Bend-Integrated Pulsating Heat Pipe for Display Cooling

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Solution Overview

Problem

Existing display devices face challenges in effectively dissipating heat, which can lead to performance degradation and operational issues.

Innovation Solution

Incorporating a pulsating heat pipe within bend portions of a heat dissipation layer, utilizing the bend structure of a heat dissipation plate to enhance heat dissipation characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a conventional flat heat dissipation structure is used, then the device structure is simple, but heat dissipation performance is insufficient

Engineering Contradiction:

Improveheat dissipation performanceVSAvoidstructure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The heat dissipation plate incorporates bend portions with curved surfaces instead of a flat structure. The convex and concave bend portions create increased surface area and improved heat distribution pathways, enhancing heat dissipation performance through the curved geometry that facilitates better thermal contact and heat flow distribution.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The pulsating heat pipe is integrated within the bend portions of the heat dissipation plate, creating a nested structure where the heat pipe is embedded in the curved regions. This nesting approach allows the heat dissipation system to achieve enhanced performance without significantly increasing overall device volume or structural complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Temperature

If heat dissipation is improved by adding components, then heat dissipation performance increases, but device complexity increases

Engineering Contradiction:

Improveheat dissipation performanceVSAvoidnumber of components

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The pulsating heat pipe and heat dissipation plate are merged into an integrated structure where the heat pipe is positioned within the bend portions of the plate. This combination allows both components to work together as a unified heat dissipation system, improving thermal performance while avoiding the complexity of separate, independently managed components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bend portions of the heat dissipation plate serve multiple functions: they increase surface area for heat dissipation, provide structural pathways for heat flow, and act as housing structures for the pulsating heat pipe. This multi-functionality reduces the need for additional dedicated components while achieving enhanced heat dissipation performance.

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

Improves heat dissipation performance by distributing heat evenly across the display device, preventing overheating and maintaining optimal operating conditions.

Implementation Method 1

a pulsating heat pipe in at least one of the bend portions

Methodology Applied

Scientific EffectHeat pipe: Heat Pipe

Implementation Method 2

pulsating heat pipe

Methodology Applied

Scientific EffectPhase change: Phase Change

Data Source

PatentUS20260025963A1Display device and electronic device including the same

Publication Date: 2026.01.22 SAMSUNG DISPLAY CO LTD

AI summary

A display device includes: a display panel; a lower plate on a rear surface of the display panel; a heat dissipation layer on a rear surface of the lower plate, and including a plurality of bend portions; and a pulsating heat pipe in at least one of the bend portions.