How do I identify possible shadow crushing?

If several near-black steps merge, record the behavior and check RGB range, brightness, contrast, color profile and ambient light before adjusting the display.

Which transfer curve should I use as reference?

sRGB has its own segmented transfer function, often approximated as gamma 2.2. Video workflows may use BT.1886; the target depends on the delivery standard and viewing environment.

Visual Display Check

By MonitorSmith editorial team · EXVORN.TECH • Updated September 23, 2026 • Editorial process

Visual Check groups browser-rendered patterns for observing grayscale, contrast, gradients and apparent sharpness.

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Interface and local controls remain in Portuguese.

How to use

Record the current picture mode, brightness, colour profile and scaling; stabilize room lighting before changing any setting.
Select the grayscale pattern to compare 17 steps, then the near-black pattern labelled Uniformidade 5% to inspect five dark fields from 0% to 10%.
Compare the CSS gradient, sharpness grid and RGB/BGR text patterns. Record visible bands, halos or fringes; these patterns cannot identify FRC or physical bit depth.

When to use

Visual comparison of tonal gradation after OSD changes.
Observing apparent banding across content and display modes.
Comparing text sharpness and visible color fringing.

Limitations

Visual inspection guides OSD and GPU driver tuning. It does not generate hardware ICC profiles or replace a dedicated spectrophotometer.

Frequently Asked Questions

How do I identify possible shadow crushing?: If several near-black steps merge, record the behavior and check RGB range, brightness, contrast, color profile and ambient light before adjusting the display.
Which transfer curve should I use as reference?: sRGB has its own segmented transfer function, often approximated as gamma 2.2. Video workflows may use BT.1886; the target depends on the delivery standard and viewing environment.

Technical Methodology & Display Science

Transfer functions relate digital code values to luminance. sRGB is segmented rather than an exact single power law; BT.1886 defines a reference response that accounts for display conditions.

An 8-bit ramp has codes from 0 to 255, but color management, composition, framebuffer depth, GPU and panel processing can transform the physical output. This page supports observation, not colorimetric validation.

Text rendering depends on the operating system, browser, scaling and subpixel geometry. Comparing targets may reveal visible fringing without automatically identifying panel layout or the correct compensation.