Dynamic Anti-Glare Display Screen for High Brightness Glare Reduction

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Solution Overview

Problem

Conventional high-brightness display screens suffer from glare and eye fatigue due to excessive brightness, and blue light emission, which negatively impacts user experience.

Innovation Solution

A display screen incorporating an optical layer group with an anti-glare layer, anti-blue light layer, and anti-reflection layer, where the anti-glare layer can selectively reflect light specularly or diffusely, featuring a rough surface that changes reflection states based on light intensity or electric field, and is formed through photomicrostructures or electromicrostructures, integrated with a touch layer and adhesive layer for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If display brightness is increased to improve visibility, then display luminance is improved, but glare and eye fatigue increase

Engineering Contradiction:
Improvedisplay luminanceVSAvoidglare and eye fatigue
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent applies a dynamic anti-glare layer with variable surface roughness that can switch between smooth and rough states. When the display is at high brightness, the surface becomes rougher to diffuse light and reduce glare. When brightness is lower, the surface becomes smoother to maintain clarity. This dynamic adaptation resolves the contradiction by adjusting the anti-glare property based on the actual display luminance level.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the physical parameter of surface roughness of the anti-glare layer based on display brightness conditions. At high brightness levels, the surface roughness increases to scatter light and reduce glare. At lower brightness levels, the surface roughness decreases to maintain image clarity. This parameter change allows the display to optimize both visibility and comfort across different operating conditions.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If anti-glare treatment is applied to reduce glare, then glare is reduced, but light transmittance decreases

Engineering Contradiction:
ImproveglareVSAvoidlight transmittance
Core Design Contradiction:
Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The patent uses a dynamic anti-glare layer that adjusts its surface roughness based on display brightness requirements. When high light transmittance is needed, the surface becomes smoother. When glare reduction is prioritized, the surface becomes rougher. This dynamic adjustment resolves the contradiction by allowing the system to optimize between transmittance and glare reduction based on operational conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies different surface roughness characteristics to different regions or conditions of the anti-glare layer. The surface can have varying degrees of roughness in different areas or at different times, allowing localized optimization of both glare reduction and light transmittance properties according to specific viewing conditions.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If fixed surface roughness is used for anti-glare, then manufacturing is simple, but adaptability to different lighting conditions is poor

Engineering Contradiction:
Improveanti-glare layer fabricationVSAvoidadaptation to lighting conditions
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic anti-glare layer whose surface roughness can change in response to different lighting conditions and display brightness levels. This is achieved through materials or structures that can transition between smooth and rough states, allowing the display to adapt to various environmental conditions while maintaining good manufacturing feasibility through established material science approaches.

Inventive Principle:
Principle #15Dynamics

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 reduces glare and blue light exposure, improving user comfort and visual experience by selectively adjusting light reflection and transmission, thereby mitigating eye fatigue and enhancing display quality.

Implementation Method 1

the anti-glare layer is configured to selectively reflect specularly or diffusely light incident on the display screen

Methodology Applied
Scientific EffectSpecular reflection: Reflection

Implementation Method 2

the anti-glare layer is configured to selectively reflect specularly or diffusely light incident on the display screen

Methodology Applied
Scientific EffectDiffuse reflection: Reflection

Implementation Method 3

a surface roughness of the first surface changes based on a change in a light intensity or an electric field, so that a light reflection state of the anti-glare layer changes

Methodology Applied
Scientific EffectSurface roughness modulation:

Implementation Method 4

an optical layer group, the optical layer group disposed on a light emitting side of the display panel and at least including an anti-glare layer, an anti-blue light layer, and an anti-reflection layer

Methodology Applied
Scientific EffectBlue light filtering: Absorption (EM radiation)

Implementation Method 5

an adhesive layer is provided between the display panel and the touch layer for bonding the display panel and the touch layer

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS20250102851A1Display screen
Publication Date: 2025.03.27 HUIZHOU TCL MOBILE COMM CO LTD
  • US20250102851A1 patent drawing

AI summary

A display screen (10). The display screen (10) comprises a display panel (100) and an optical layer group (200), which is arranged on a light-emitting side of the display panel (100), wherein the optical layer group (200) is arranged on the light-emitting side of the display panel (100), the optical layer group (200) at least comprises an anti-glare layer, an anti-blue-light layer and an anti-reflection layer, which are arranged in a stacked manner, and the anti-glare layer can selectively perform mirror surface reflection or diffuse reflection on light that is incident to the display screen (10). By means of the display screen (10), the problems of glare, eye fatigue and vision damage caused by blue light of the high-brightness display screen (10) can be solved.