—— bit Browser reportA bright field, stepped tones and regional patterns help you inspect changes in visible intensity. The percentage on this page controls the test image rather than the device's backlight setting.
Changing an RGB value changes the image requested by the browser. Changing the monitor's brightness control changes the display's operating settings. Keep those two controls distinct when recording a comparison. A 50% pattern is not a claim that the screen emits half its maximum luminance.
Use the uniform and regional patterns to compare the center with the edges. Keep your viewing angle and room lighting fixed. A visible difference can depend on picture processing or viewing position as well as panel uniformity, so repeat the comparison at a normal working brightness.
A brightness value in nits requires an instrument and a defined pattern, window size and measurement procedure. This page provides observation patterns without measuring that light output. If the display changes intensity as a large bright area appears, record the behavior before drawing conclusions about its cause.
Percentages change web patterns, not the device backlight, and do not represent nits.
Set comfortable hardware brightness.
Compare the center, edges and corners.
Recheck detail with stepped levels.
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.