Display Screen Heat Transfer Layout for Color Uniformity

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Solution Overview

Problem

Existing heat dissipation devices in electronic devices are inadequate for managing temperature differences across different areas of a display screen, leading to abnormal color display issues.

Innovation Solution

A display apparatus with a temperature adjustment apparatus on its non-display surface, utilizing heat transfer layers and air guide structures to adjust temperature differences across the screen, including flexible graphite sheets, liquid channels, and fluid drivers to manage heat distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If existing heat dissipation devices are used for components generating significant heat, then heat dissipation for CPUs and image processors is improved, but temperature differences across different areas of the display screen cannot be controlled

Engineering Contradiction:

Improveheat dissipation performanceVSAvoidtemperature uniformity across display screen

Core Design Contradiction:

TemperatureVSManufacturing precision

Solution Approach 1:

The heat dissipation system is segmented into multiple independent temperature adjustment apparatuses, with each apparatus dedicated to controlling the temperature of a specific area of the display screen. This allows precise local temperature control rather than uniform global cooling, addressing the temperature uniformity requirement across different display areas.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different areas of the display screen are equipped with dedicated temperature adjustment apparatuses tailored to their specific thermal requirements. The system applies localized heat dissipation solutions rather than a one-size-fits-all approach, enabling precise control of temperature distribution across the display surface.

Inventive Principle:

Principle #3Local quality

2Reliability

If temperature adjustment apparatuses are added to control temperature differences, then abnormal color display issues are prevented, but device complexity increases

Engineering Contradiction:

Improvedisplay quality stabilityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The temperature adjustment apparatuses are integrated with the display screen structure, merging the heat dissipation function into the display assembly itself. This integration reduces overall system complexity by eliminating the need for separate external heat dissipation systems while maintaining reliable temperature control for preventing abnormal color display.

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

Effectively prevents abnormal color display issues by balancing temperature differences across the display screen, ensuring consistent performance.

Implementation Method 1

utilizing heat transfer layers and air guide structures to adjust temperature differences across the screen

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

liquid channels, and fluid drivers to manage heat distribution

Methodology Applied

Scientific EffectFluid convection: Convection

Data Source

PatentUS20250374492A1Display apparatus, heat transfer control method, and electronic device

Publication Date: 2025.12.04 LENOVO (BEIJING) LTD

AI summary

A display apparatus includes a display screen and a temperature adjustment apparatus. The display screen includes a display surface and a non-display surface facing away from the display surface. The temperature adjustment apparatus is arranged on a side of the non-display surface of the display screen and configured to adjust a temperature difference among different areas of the display screen.