Signal Desk

Add Signal Desk to this device

Good to know

  • An internet connection is required. Nothing works offline.
  • Adding it does not request permissions or send notifications.
  • The app window and browser tabs may use separate storage, so practice records can look different.
  • Menu names and positions vary by browser and version. To remove it, use your browser’s or device’s app settings.

Display

Monitor pattern and alignment test

Inspect gray steps, gradients, contrast, grids, and related patterns.

Getting the controls ready…Still loading. Check your connection, then reload the page.

Choose a color, inspect the panel, then confirm only what you saw yourself.

Fullscreen opens without text or buttons. Space / →: next · ←: previous · H: show/hide control buttons · tap the pattern: next · Esc: exit fullscreen. Read these shortcuts before hiding controls.

Not started

Current color: Red (1/13)

Visual confirmation only — not automatic dead-pixel detection or certification.

Details and limits

Adds banding, contrast, and alignment patterns beyond solid dead-pixel colors. No automatic defect detection.

How to check

Pick patterns one by one or step forward, using fullscreen to inspect edges. There is no automatic flashing loop.

If something feels wrong

If banding appears, change cable, port, GPU scaling, or a film, then recheck the same pattern.

Limits

Does not prove panel response time, factory calibration, or official color accuracy. Outcomes are user-confirmed.

Test methods and limitations
FAQ

I see bands in the gradient.

Panel, cable, or bit depth can contribute. This tool only helps you look — it does not judge.

The grid looks warped.

Check viewing angle, curvature, and scaling. This is not a geometry certificate.