Yellow Backlight System Neutralizes Blue Light

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Solution Overview

Problem

Prolonged exposure to blue light from electronic devices can cause macular degeneration and vision loss, and existing solutions like blue-light blocking glasses are inconvenient and can distort color perception, especially for those who already wear glasses.

Innovation Solution

A yellow backlight system that emits yellow light to neutralize and reduce the intensity of blue light emitted by display devices, using methods like reflection, refraction, or direct illumination, eliminating the need for additional glasses and preventing color misjudgment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If blue-light blocking glasses are used to reduce blue light intensity, then the impact on human visual cells is reduced, but color perception is distorted and users must replace existing glasses

Engineering Contradiction:
Improveblue light damage to visual cellsVSAvoidconvenience of use and color perception accuracy
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

A yellow light source is introduced as an intermediary element between the display device and the user's eyes. The yellow light neutralizes the blue light from the screen, reducing its harmful effects without requiring the user to wear blue-light blocking glasses, thereby maintaining color perception accuracy and convenience

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention converts the harmful blue light into a beneficial effect by using yellow light to neutralize it. The yellow light from the light source counteracts the blue light from the display, transforming the potential harm into a protective effect that reduces visual cell damage while maintaining normal color perception

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Object-affected harmful factors

If blue-light blocking lenses are used to filter blue light, then blue light intensity is reduced, but users incur additional costs and must replace existing glasses

Engineering Contradiction:
Improveblue light intensityVSAvoidadditional cost for new glasses
Core Design Contradiction:
Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

A yellow light source serves as an intermediary that reduces blue light intensity in the environment without requiring physical blue-light blocking lenses. This eliminates the need for users to purchase and replace glasses, thereby avoiding additional costs while still achieving blue light reduction

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system provides blue light protection through an ambient light source that automatically neutralizes blue light without requiring user action to wear or adjust special glasses. The protection is self-service in nature, continuously operating in the background without additional user expense or effort

Inventive Principle:
Principle #25Self-service

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

Reduces blue light intensity without the need for new glasses, minimizing eye damage and color distortion, while enhancing ambient brightness and reducing eye fatigue during prolonged screen use.

Implementation Method 1

a yellow light source 200 is installed at a backside of the display device 100, and the yellow light source 200 emits yellow light

Methodology Applied
Scientific EffectLight emission: Light

Implementation Method 2

using methods like reflection, refraction, or direct illumination

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 3

using methods like reflection, refraction, or direct illumination

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentEP3232261B1Yellow backlight system and yellow backlight method
Publication Date: 2021.02.24 LIN PO KANG
  • EP3232261B1 patent drawingFigure 1
  • EP3232261B1 patent drawingFigure 2
  • EP3232261B1 patent drawingFigure 3

AI summary

Provided is a method for a yellow backlight, including the following steps of emitting blue light by a display device; and emitting yellow light into surroundings of the display device in a particular manner by at least one yellow light source to neutralize and decrease intensity of the blue light. The present invention further provides a system for a yellow backlight.