Yellow Screen Test Online for Stuck Pixel Check
Free online yellow screen test to check for stuck pixels, dead pixels, and color uniformity on OLED, LCD, and phone displays. Pure yellow fullscreen — no install needed.
Click for Fullscreen Yellow Screen
Best for spotting pixel defects
Stuck Pixel Finder
A pure yellow screen reveals stuck pixels as dots that display incorrect colors instead of the expected yellow.
Yellow Color Test
Test the red and green sub-pixels simultaneously since yellow is a combination of red and green light.
Color Uniformity Check
Verify that the yellow color appears evenly across your entire display without patches or variations.
All Devices Supported
Works on OLED TVs, gaming monitors, laptops, tablets, and smartphones — iOS and Android.
Why Use a Yellow Screen Test for Stuck Pixel Detection?
A yellow screen test activates both red and green sub-pixels simultaneously, making it ideal for detecting stuck pixels and testing two color channels at once on any display.
What This Yellow Screen Test Reveals
Each issue becomes visible on a pure yellow background
Complete Guide to Yellow Screen Test & Stuck Pixel Detection Online
“A yellow screen tests both red and green sub-pixels simultaneously, making it an efficient diagnostic tool for detecting stuck pixels and color channel defects.”
This free online yellow screen test fills your entire display with pure yellow (RGB 255, 255, 0) so you can perform a stuck pixel check, detect color channel defects, and spot color uniformity issues on OLED, LCD, and AMOLED screens — no software installation required.
How to Perform a Yellow Screen Test for Stuck Pixel Detection
Follow these steps to use our free yellow screen test for the most accurate results:
- Set your display brightness to at least 50% for optimal defect visibility.
- Click "Enter Fullscreen Yellow Screen" above to fill your entire display with pure yellow.
- Look carefully for any dots that appear blue, white, or black — these are stuck or dead pixels.
- Check if the yellow color appears uniform across the entire screen without patches or variations.
- Take a photo of any defects you find for warranty claims or return requests.
Detecting Stuck Pixels with a Yellow Screen Test
Since yellow is produced by combining red and green light, a yellow screen test activates both sub-pixel channels. Pixels that appear blue indicate stuck blue sub-pixels that won't turn off. Pixels that appear black have both red and green sub-pixels dead. This makes the yellow screen test one of the most efficient diagnostic tools.
Yellow Color Uniformity Test for Display Quality
Yellow color uniformity issues appear as patches of different shades — some areas may look more orange (excess red) or greenish (excess green). This indicates uneven color balance across the panel. Our free yellow screen test helps you identify these uniformity problems that affect your viewing experience.
OLED Burn-in Detection with Yellow Screen
OLED burn-in from static content that contains yellow or warm-colored elements can be detected with a yellow screen test. Look for faint shadows or uneven brightness on the yellow background. Yellow-heavy UI elements like warning icons, notification badges, and certain game elements can cause burn-in on the red and green sub-pixels over time.
Important: Yellow Tests Red and Green Channels
Since yellow is created by combining red and green sub-pixels, a yellow screen test cannot detect issues with blue sub-pixels specifically. For a complete display diagnostic, combine the yellow screen test with our blue, red, green, and white screen tests to cover all color channels.
Supported Display Types for Yellow Screen Testing
This yellow screen test works on all major display technologies and devices:
OLED / QD-OLED / AMOLED
Test red and green sub-pixel health simultaneously. Check for burn-in from yellow or warm-colored static content.
LCD / IPS / VA
Detect stuck pixels and color uniformity issues affecting the red and green channels on LCD panels.
Phones & Tablets
Test smartphone or tablet screens for stuck pixels and color accuracy on any mobile device.
This free yellow screen test runs entirely in your browser with no download or sign-up required. Combine it with our other color tests for comprehensive display diagnostics.