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DISPLAY TEST/ONLINE
DIAGNOSTIC MATRICIEL TACTILE CAPACITIF ANSI/NIST

Test de Grille de Zones Mortes

Glissez votre doigt ou stylet sur le quadrillage pour valider la couverture intégrale du numériseur et détecter les zones insensibles.

診断インスペクター

高密度マトリクスでタッチパネルの微小な不感帯を可視化。

Coverage Rating0.0%
Dead Cells Highlighted0
PHYSIQUE DU CAPTEUR TACTILE CAPACITIF

Pistes du Numériseur, Physique ITO et Isolation des Zones Mortes

Les écrans récents utilisent une matrice capacitive projetée (Pcap) en oxyde d'indium et d'étain (ITO) disposée en lignes orthogonales (X/Y). L'approche d'un conducteur modifie la capacité mutuelle (Cm) au point nodal.

Fracture de Circuit ITOLigne/Colonne Inerte

Les chocs peuvent sectionner une piste conductrice ITO, rendant inactive une bande entière.

Point Mort IsoléPanne de Nœud sur Puce IC

Un nœud capacitif ne capte plus les variations de tension, formant une cellule inerte.

Frappes FantômesBruit & Boucles de Masse

Des chargeurs mal isolés ou de l'humidité provoquent des parasites tactiles erratiques sans contact.

OPTOMETRIC ERGONOMICS & NON-MEDICAL NOTICE

Display Test Online is an engineering calibration utility for electronic visual displays (LCD, OLED, QD-OLED, MicroLED) and mobile touch digitizers. This software is NOT a medical eye exam, optometric vision test, or diagnostic health utility.

To reduce Digital Eye Strain (DES) during display calibration, apply optometric ergonomics:

  • The 20-20-20 Rule: Every 20 minutes, look at an object at least 20 feet away for 20 seconds.
  • Ambient Illumination: Ensure room ambient lighting matches display brightness levels (~100–150 nits for standard SDR workloads).
  • Optimal Viewing Distance: Place your screen approximately 20 to 30 inches (50–75 cm) from your eyes.
Technical FAQs & Helpful Content

よくある質問 (FAQ)

この診断機器、校正手順、ディスプレイ技術規格について知っておくべきすべての情報。

01.What is a digitizer dead-zone on a touchscreen?
A digitizer dead-zone is a region of a touchscreen where touch inputs fail to register due to fractured Indium Tin Oxide (ITO) sensor lines, damaged controller IC channels, or physical glass separation.
02.How does this online Touchscreen Dead-Zone Test work?
The test renders an interactive cell grid overlay on your screen. As you drag your finger or stylus across the grid, active cells change color to record 100% matrix coverage and highlight unresponsive zones.
03.Why is part of my screen not responding to touch?
Unresponsive screen sections are usually caused by physical drop impacts severing ITO conductive traces, liquid ingress corrosion on the digitizer flex cable, or third-party screen replacement defects.
04.Can software or factory reset fix a touch dead-zone?
If the dead-zone is caused by hardware ITO trace breakage, software cannot fix it. However, if caused by digitizer driver calibration errors or OS touch filtering, restarting or recalibrating touch drivers may help.
05.How do non-original screen replacements cause dead spots?
Low-quality aftermarket screens often use lower-density ITO sensor grids or poorly bonded controller flex ribbons, leading to dead edge zones and degraded touch sensitivity.
06.Does screen protector glass affect touch matrix sensitivity?
Thick tempered glass protectors or poorly aligned film can reduce mutual capacitance change, causing touch input drops along outer screen edges.
07.Can charger EMI noise simulate a touch dead-zone?
Yes, cheap or ungrounded AC chargers produce electromagnetic interference (EMI) that confuses the touch IC controller, causing ghost touches or temporary touch lockouts.
08.Can I test active stylus input like Apple Pencil or S-Pen with this test?
Yes, both capacitive fingers and active digital pens trigger W3C PointerEvents on the matrix grid.
09.What should I do if my screen fails the dead-zone test during warranty?
If dead zones are detected, capture a screenshot or screen recording of the grid coverage map to submit to the manufacturer or retailer for an RMA hardware repair.
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Matrice de Zones MortesCompteur MultipointPrécision VectorielleVitesse de BalayageTest de Latence
PASS

100% COUVERTURE GRILLE

Numériseur Capacitif

100/100
Matrice Active10 x 10 Cells
Zones Mortes0

Paramètres de Grille

Densité de Résolution

Controls

Mesures Tactiles

Données Capteur Capacitif

Télémétrie Numériseur
Cellules Touchées
0cells
Target: 100 cells
0%0%100%
Rayon de Contact
12.4mm

Shortcuts

Keyboard Navigation

Hotkeys
F
Basculer Plein Écran
R
Réinitialiser Matrice
TV users can navigate with D-Pad & Remote arrow keys

Spécifications Numériseur

Matrice Oxyde d'Indium-Étain

ISO 9241-307
Standard Citations
ISO 9241-307 & W3C PointerEventsCapacitive Digitizer

Détection matricielle ITO capacitive mutuelle avec résolution spatiale de 0,1 mm.

Monitor OSD Calibration
  • Nettoyez la surface pour éliminer les traces grasses faussant les résultats.
  • Retirez les verres trempés trop épais si les bordures ne répondent pas.
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