Display Device Support Plate Openings for Driver Circuit Cooling

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Solution Overview

Problem

Organic light-emitting diode displays face challenges in efficiently dissipating heat from driver circuits, which can impact performance and reliability.

Innovation Solution

Incorporating a support plate with grooves or holes that overlap with driver circuits, allowing for increased air contact and efficient heat dissipation, along with the use of heat dissipation members and adhesive layers to enhance thermal management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a support plate with grooves or holes is added to improve heat dissipation, then heat dissipation efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The support plate is designed with grooves or holes that create a porous structure, allowing air to flow through and contact the driver circuit. This porous configuration increases the surface area for heat exchange and improves heat dissipation efficiency without requiring complex active cooling systems

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The support plate is segmented by dividing it into multiple regions with grooves or holes at different locations. This segmentation allows targeted heat dissipation at specific areas where driver circuits are mounted, improving overall heat management while maintaining structural integrity

Inventive Principle:
Principle #1Segmentation

2Temperature

If the width of grooves or holes is increased to enhance heat dissipation, then heat dissipation efficiency is improved, but structural strength decreases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidsupport plate strength
Core Design Contradiction:
TemperatureVSStrength

Solution Approach 1:

The support plate features non-uniform groove or hole widths at different locations, optimized according to the local heat dissipation requirements and structural strength demands. Areas with higher heat generation have wider grooves or holes for better heat dissipation, while areas requiring structural support have narrower features to maintain strength

Inventive Principle:
Principle #3Local quality

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

The solution effectively disperses heat from driver circuits, improving the heat dissipation effect and overall performance of the display device.

Implementation Method 1

a support plate overlapping with the display panel and having a groove or hole overlapping with the first driver circuit

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

a heat dissipation member disposed in the groove or the hole of the support plate

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4641349A1Display device and electronic device
Publication Date: 2025.10.29 SAMSUNG DISPLAY CO LTD
  • EP4641349A1 patent drawingFigure 1
  • EP4641349A1 patent drawingFigure 2
  • EP4641349A1 patent drawingFigure 3

AI summary

The present invention relates to a display device, and more particularly to a display device that can efficiently dissipate heat from a driver circuit, and an electronic device including the same. According to an aspect of the present invention, there is provided a display device including: a display panel; a first driver circuit connected to the display panel; and a support plate overlapping with the display panel. The support plate may have a groove or a hole that overlaps with the first driver circuit.