⚡ Complete Display Testing Suite

Suite professionnelle de test d'écran et d'étalonnage de moniteur

Diagnostics instantanés dans votre navigateur pour moniteurs, ordinateurs portables et smartphones. Détectez les pixels morts, le ghosting et l'exactitude des couleurs sans rien installer.

Découvrir plus de 20 outils spécialisés ⚪ Écran Blanc 🏆 Score
20+ Diagnostic Tools
Zero Install / Pure Browser
4K / OLED & 360Hz Ready
Cross-Device & Mobile Sync

Test rapide de couleurs et de pixels

Lancez des couleurs plein écran pour inspecter l'uniformité, les sous-pixels et les fuites de rétroéclairage.

⚪ Blanc ⚫ Noir 🔴 Rouge 🟢 Vert 🔵 Bleu 🟡 Jaune 🟠 Orange 🟣 Violet 🩷 Rose

Tests Professionnels d'Écran

Outils de test complets pour évaluer la qualité de votre moniteur et détecter les problèmes d'affichage

Tests d'Affichage Avancés

Réparateur de Pixels

Fix dead and stuck pixels using rapid color cycling technology

Test de Mouvement

Vérifiez le ghosting et le flou de mouvement avec des objets en mouvement rapide

Test de Latence d'Entrée

Mesurez votre temps de réaction et la latence du système. Êtes-vous un Pro Gamer ?

Vérification de la résolution

Vérifiez instantanément la résolution et le rapport hauteur/largeur de votre écran. Données d'affichage professionnelles.

Calculateur de Distance de Visionnage et PPI

Calculez la distance optimale, la limite de résolution Retina, la densité PPI et l échelle recommandée.

Test VRR et G-Sync/FreeSync

Testez le taux de rafraîchissement variable, G-Sync et FreeSync.

Test de Scintillement PWM

Détectez le gradation PWM et vérifiez si votre écran cause de la fatigue oculaire.

Vérification de la disposition des sous-pixels

Identifiez les structures de pixels RVB, BGR ou non standard pour optimiser la clarté du texte et les paramètres Windows ClearType.

Test gamma

Vérifiez et calibrez les niveaux gamma de votre écran pour garantir des détails précis des ombres et des tons moyens.

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Uniformité

Vérifiez l'uniformité de la luminosité et des couleurs sur tout votre écran

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Clarté du texte

Évaluez le rendu des polices et détectez les franges colorées ClearType.

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Dégradé

Détectez le banding de couleur et testez les transitions de couleur douces

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Contraste

Testez les détails en niveaux de gris et le rapport de contraste

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Test OLED

Les motifs gris sont les meilleurs pour détecter u...

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Surveiller le score

Évaluez votre affichage – Analyse de performance...

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Test et Calibration d'Écran HDR

Testez les capacités de votre écran HDR, les nivea...

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Angle de Vue

Panneaux IPS ou TN...

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Info Écran

Outils de test d'affichage professionnels pour pho...

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Test d'écran tactile

Trouvez les zones mortes, testez le multitouch et vérifiez la précision du dessin

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Outil de comparaison de moniteurs

Comparer les spécifications des moniteurs côte à côte

DisplayMaster Technical Diagnostic Guide

The Complete Display Diagnostics & Screen Calibration Guide

From new monitor out-of-the-box quality inspection to competitive gaming refresh rates, color accuracy, and OLED burn-in care.

5-Step Hardware Diagnostic & Inspection Protocol

Follow this standardized 5-step hardware testing workflow within your return window (7–14 days) to detect screen defects early:

01 Essential First Step

Pixel Defect & Subpixel Isolation

Use pure fullscreen colors to instantly differentiate dead pixels (black dots) from stuck pixels (RGB colored dots). Under ISO 13406-2 standards, premium Class I displays require zero defects, while consumer panels allow minor tolerances. Stuck subpixels can often be unstuck using rapid color cycling.

Launch Pixel Fixer & Tester
02 Image Clarity

Gamma 2.2 Curve & Dynamic Contrast Calibration

Gamma 2.2 is the industry standard curve across Windows, macOS, and digital design. A low gamma creates a washed-out milky image, while a high gamma causes dark details to crush into pitch black. Fine-tune your monitor's contrast and black level with progressive grayscale gradients.

Calibrate Gamma 2.2 Curve
03 Gaming Precision

Motion Blur & GtG Pixel Response Evaluation

A high refresh rate panel does not automatically guarantee crystal clarity. Slow pixel transitions (GtG) introduce severe ghosting behind moving elements or inverse overshoot from aggressive overdrive. Test your monitor against moving UFO targets to dial in the ideal overdrive setting.

Run Motion Blur & UFO Test
04 Tear-Free Gaming

VRR / G-Sync & Tear-Free Synchronization

Verify active variable refresh rate communication between your GPU and display scaler. Eliminate screen tearing and test Low Framerate Compensation (LFC) transitions under fluctuating framerates for stutter-free gaming.

Verify G-Sync / FreeSync Sync
05 Build Quality

Backlight Bleed & 9-Zone Uniformity Audit

Clearly differentiate natural IPS Glow (which shifts depending on viewing angle) from physical backlight bleed (caused by bezel pressure and frame clamping). Scan 9 display zones to ensure even luminance and color temperature across the canvas.

Audit Panel Uniformity

Display Panel Technologies Compared

Understand the physical strengths, limitations, and best use cases for modern display architectures:

OLED / QD-OLED Panels

The Darkroom King

Self-emissive pixels eliminate backlights completely, delivering true infinite contrast and near-instantaneous 0.03ms response times.

Pros: Inky blacks, breathtaking HDR highlights, zero ghosting.
Cons: Subpixel text fringing on desktop OS, aggressive ABL on full-white windows, requires burn-in mitigation.
Run OLED Burn-in Diagnostics

Fast IPS / Nano IPS Panels

All-Round Industry Benchmark

The most dependable LCD technology, offering 178° viewing angles and factory-grade sRGB/DCI-P3 color precision.

Pros: Natural color reproduction, sharp text rendering, durable lifespan with zero burn-in risk.
Cons: Moderate native contrast (~1000:1), visible IPS Glow in dark ambient conditions.
Test IPS Viewing Angles

VA Panels

Cinematic Contrast

Vertically aligned liquid crystals achieve deep 3000:1 to 5000:1 native contrast ratios, vastly outperforming standard IPS blacks.

Pros: Deep shadows, excellent for cinematic movies and curved immersive single-player games.
Cons: Slower dark pixel transitions cause dark scene smearing during fast motion.
Measure Contrast Ratio

Mini-LED Backlight Technology

High-Luminance HDR Benchmark

Thousands of miniaturized LED chips arranged behind an IPS or VA panel deliver dense local dimming zones.

Pros: Peak brightness over 1000–2000 nits, stellar HDR punch, zero risk of organic pixel burn-in.
Cons: Subtle blooming/haloing around bright objects against black backgrounds.
Test HDR Peak Luminance

Featured Technical Guides & Deep Dives

Master display hardware fundamentals, interfaces, and optimization workflows:

Explore All Articles
fuites-de-lumiere IPS-glow

Fuites de Lumière, Lueur IPS ou Blooming : Pourquoi mon écran brille-t-il ?

Votre écran présente des taches lumineuses ? Découvrez la différence technique entre backlight bleed et IPS glow, et apprenez à tester votre dalle en 2026.

Read Article
fatigue oculaire lumière bleue

Réduire la Fatigue Oculaire en 2026 : Le Guide Santé du Moniteur

Poches sous les yeux ? Maux de tête ? Découvrez comment configurer votre écran et votre espace de travail pour éliminer la fatigue visuelle numérique en 2026.

Read Article
pixels-morts pixels-bloques

Comment Réparer les Pixels Morts et Bloqués : Le Guide Complet 2026

Votre écran a un point noir ou coloré ? Apprenez la différence entre un pixel mort et un pixel bloqué, et découvrez comment les réactiver avec nos outils.

Read Article

Popular Flagship Monitor Comparisons

Side-by-side spec, refresh rate, panel, and value analysis for popular flagship displays:

Browse Comparison Hub
ASUS vs LG

ROG Swift PG32UCDM vs 32GS95UE UltraGear

QD-OLED (240Hz) vs WOLED (Dual-Mode) (240Hz)

Alienware vs ASUS

AW3225QF vs ROG Swift PG32UCDM

QD-OLED (240Hz) vs QD-OLED (240Hz)

Alienware vs ASUS

AW2725DF vs ROG Swift OLED PG27AQDP

QD-OLED (360Hz) vs WOLED (True 480Hz) (480Hz)

AOC vs Dell

Q27G3XMN vs G2724D

Mini-LED VA (180Hz) vs IPS (165Hz)

Apple vs BenQ

Studio Display vs RD2720U Programming Monitor

IPS (Retina) (60Hz) vs IPS (Fine-Coated Anti-Glare) (60Hz)

Samsung vs Samsung

Odyssey Neo G9 (S49CG950) vs Odyssey OLED G9 (G95SD)

VA (Mini LED) (240Hz) vs QD-OLED (240Hz)

Frequently Asked Questions (FAQ)

Authoritative answers to common display testing and hardware queries:

1 Can dead or stuck pixels be fixed with software?
It depends on the hardware defect type. A true dead pixel (permanently black) is a broken transistor circuit and cannot be repaired by software. However, a stuck pixel (permanently lit red, green, or blue) is a liquid crystal molecule physically stuck in place. Running our Pixel Fixer for 30–60 minutes cycles high-frequency RGB pulses, successfully reviving stuck subpixels in approximately 30%–50% of cases.
2 How do I verify my monitor is actually running at 144Hz, 240Hz, or 360Hz?
Many users unknowingly run high-refresh displays at 60Hz due to Windows default settings, HDMI cable bandwidth limits, or GPU driver caps. You can verify real-time vertical sync refresh rates in your browser using our Motion Blur Test. Also ensure Windows Advanced Display Settings is explicitly set to your monitor's maximum rated refresh rate.
3 What is the difference between Response Time (GtG) and Input Lag?
Response Time (GtG/MPRT) measures how quickly a pixel can transition from one color to another, determining visual motion blur and ghosting. Input Lag measures the total time delay from pressing a mouse/keyboard button to seeing that action rendered on screen, determined by your GPU, cable, and display scalar processor. Both must be low for optimal gaming.
4 How do I safely prevent OLED burn-in during daily coding or office work?
Follow three golden rules: 1. Set the Windows/macOS taskbar to auto-hide; 2. Enable dark mode themes across your code editor and browser to minimize static high-luminance white windows; 3. Never cut power to the monitor via wall switch — always leave it in standby mode so it can run automated pixel refresh cycles after 4+ hours of usage.
5 Why does my desktop look washed out or gray after enabling HDR in Windows?
Most desktop UI and web pages are authored in standard SDR (sRGB). When global Windows HDR is toggled on, Windows maps SDR color coordinates into wide HDR color spaces. If your monitor's EOTF tracking is inaccurate, SDR content will appear washed out. Install the official Windows HDR Calibration utility from the Microsoft Store, and verify your peak brightness using our HDR Diagnostic Tool.
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Zero software installation required. 100% private and browser-based. Detect hidden screen flaws and verify display performance in 60 seconds.

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