Electronic Device Heat Dissipation and Pressure Touch Integration

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Solution Overview

Problem

Existing electronic devices face challenges in maintaining a compact structure while incorporating advanced features like OLED displays, pressure touch sensing, and effective heat dissipation, often resulting in increased thickness and reduced durability.

Innovation Solution

The electronic device integrates an OLED display module with a pressure touch sensing unit and a heat dissipation structure, featuring a metal case, guide frame, and heat dissipation members to stabilize the components and enhance durability while maintaining heat dissipation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heat dissipation structures and waterproofing structures are added to support advanced functions, then heat dissipation capability and reliability are improved, but device thickness increases

Engineering Contradiction:
Improveheat dissipation capabilityVSAvoiddevice thickness
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent merges the heat dissipation function and waterproofing function into a single integrated structure. The waterproofing structure includes a heat dissipation member that is in direct thermal contact with the OLED display module, allowing heat to be conducted away while the same structure provides waterproofing. This eliminates the need for separate heat dissipation and waterproofing layers, thereby maintaining compact thickness while achieving both functions simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The waterproofing structure is designed to serve multiple functions: it provides waterproofing protection, acts as a heat dissipation pathway, and maintains structural integrity. The heat dissipation member integrated into the waterproofing structure can conduct heat from the OLED display module while the waterproofing structure prevents moisture ingress, demonstrating multi-functionality that resolves the thickness contradiction.

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

2Adaptability or versatility

If multiple functional layers are added for touch sensing and heat dissipation, then functionality is improved, but structural simplicity is reduced

Engineering Contradiction:
Improvetouch sensing capabilityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the touch sensing function and heat dissipation function into an integrated structure. The waterproofing structure includes a heat dissipation member that is in direct thermal contact with the OLED display module, allowing heat to be conducted away while the same structure provides waterproofing. This eliminates the need for separate heat dissipation and waterproofing layers, thereby maintaining compact thickness while achieving both functions simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

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 allows for a compact, durable electronic device that effectively dissipates heat and detects pressure touches, improving user interaction and device longevity.

Implementation Method 1

a first heat dissipation member disposed on another surface of the first base substrate and configured to diffuse heat generated, a second heat dissipation member disposed on another surface of the second base substrate and configured to diffuse heat generated

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

The first base substrate is deformed with respect to the second based substrate, in response to a pressure touch applied to the window

Methodology Applied
Scientific EffectPressure-induced deformation: Deformation

Implementation Method 3

a circuit board electrically connected to the first and second electrode layers to detect a change in capacitance between the electrode lines of one of the first electrode layer and the second electrode layer

Methodology Applied
Scientific EffectCapacitance detection: Capacitance

Data Source

PatentEP3382518B1Electronic device
Publication Date: 2022.06.15 LG ELECTRONICS INC
  • EP3382518B1 patent drawingFigure 1A
  • EP3382518B1 patent drawingFigure 1B~1C
  • EP3382518B1 patent drawingFigure 2A

AI summary

The present invention provides an electronic device, including a window defining an outer surface of a main body, and having a pressure touch receiving area for receiving a pressure touch input, a metal case supporting the window and defining the outer surface of the main body, an organic light emitting diode (OLED) display module disposed beneath the window and configured to output visual information through the window, a metal support frame supporting the OLED display module, a guide frame supporting the OLED display module, and coupled to the window, and a pressure touch sensing unit disposed beneath the window and configured to detect a touch input applied to the window.