—— bit Browser reportA black field and small steps above black reveal different things. Use both to inspect the screen's dark appearance without confusing deep-looking black with preserved shadow detail.
Begin with the black pattern, then lift the requested gray level a little. Look for patches, glow or differences across the display. These controls change the webpage's RGB values; they do not change the hardware backlight or directly measure the light emitted by the screen.
Keep your head at the normal viewing position, then carefully compare another angle. A glow that changes with angle may behave differently from a fixed patch near an edge. Avoid pressing the panel or using a bright camera exposure as the sole basis for a judgment.
A setting that makes a black field look darker can also merge several near-black tones. Cross-check the grayscale and contrast patterns, then watch normal dark content. The browser cannot convert that visual comparison into a measured black luminance or a panel contrast specification.
Compare near-black detail at your normal viewing distance. Very dark rooms and viewing angle affect perception.
Reduce distracting ambient light.
View pure black and near-black patches.
Look for large areas of merged detail.
Patterns support visual inspection. Quantitative color accuracy, brightness, gamut coverage and response time require appropriate instruments and methods.
No. It provides display test patterns and browser information. Screen anomalies that persist at the same position need visual inspection and, when needed, professional assessment.
Open the patterns and guides for your device. True full screen and touch depend on the browser; an immersive page preview remains available when full screen is unsupported.
No installation is needed. Patterns, calculations and interactions run locally in your browser; theme preferences stay on your device.
Rule out dust, reflections and display settings. Repeat under the same conditions, photograph defects that remain in the same screen position and check the device warranty policy.