How to interpret the result
Some fine stepping is normal on 8-bit output. Strong blocks, tinted grays, crushed shadows, or clipped highlights may point to settings, a limited signal range, compression, or panel behavior.
Inspect grayscale and RGB ramps for abrupt steps, clipping, tint, posterization, and dithering patterns.
Some fine stepping is normal on 8-bit output. Strong blocks, tinted grays, crushed shadows, or clipped highlights may point to settings, a limited signal range, compression, or panel behavior.
This is not a colorimeter measurement and cannot certify gamut, white point, gamma, Delta E, HDR peak brightness, or bit depth.
Use black and low-gray fields to inspect bright corners, edge leakage, clouding, and viewing-angle effects.
Open testInspect viewport size, screen resolution, pixel ratio, orientation, color depth, and fullscreen behavior.
Open testCycle solid red, green, blue, white, black, and neutral backgrounds to inspect the panel edge to edge.
Open testA cautious way to separate persistent black points, color-locked subpixels, dust, reflections, scaling artifacts, and intermittent defects.
Read guideWhy dark-screen photos are misleading and how position, angle, brightness, exposure, and panel technology change what you see.
Read guide