Brightness 100%
Timer Mode

Set a timer for fullscreen display. Useful for timed screen tests and ambient lighting sessions.

蓝色 background

px
×
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#0000FF
Custom Color
Opens one color window per detected screen. Drag & fullscreen each.
Free & Browser-Based

Free Online Screen Savers – No Download Required

Transform your display with beautiful, interactive screensavers that run right in your browser. Choose from digital clocks, productivity timers, ambient animations, and mesmerizing visual effects — perfect for idle screens, desk displays, presentations, and relaxation.

Free Prank Tool

Fake Update Screens – Free Online Prank Tools

Realistic fullscreen prank screens — BSOD, Windows updates, Ubuntu upgrades, iOS updates, and hacker terminals. Launch any screen fullscreen and watch your friends panic. Press ESC to exit anytime.

Screen Testing Tools

Auto Color Cycle

Rapidly cycle through colors to help fix stuck pixels. Run for 20–30 minutes for best results.

OLED Burn-in Test

Display a moving pattern to detect and reduce OLED burn-in artifacts on your screen.

Gradient Smoothness Test

Display smooth gradients to check for color banding and bit-depth issues on your monitor.

Checkerboard Pattern Test

Display pixel-level checkerboard patterns to test monitor sharpness and pixel response.

Pixel Response Time Test

Flash rapid black/white transitions to evaluate pixel response time and ghosting.

Viewing Angle Test

Display color bands to help evaluate your monitor's viewing angle consistency.

Gray Uniformity Test

Display 50% gray to reveal backlight hotspots, clouding, and brightness non-uniformity.

Color Accuracy Checker

Display reference color swatches to compare against known standards for calibration checks.

Multi-Monitor Detection

Detect connected displays and open fullscreen color on all screens simultaneously.

Drag each window to a different monitor, then click Go Fullscreen inside it.
Detected Screens
Click "Refresh" to detect…

About 蓝色

<p>蓝色屏幕工具将显示器填充为纯蓝色。蓝色以其镇静和宁静的特性而闻名。您可以将蓝色屏幕用作背景照明来营造平静的氛围或减轻压力。</p><p>在子像素测试中蓝色背景用于检测蓝色子像素的问题。蓝色子像素通常最小,最容易出现故障。在全蓝屏幕上可以轻松发现这些问题。</p><p>此工具也适用于蓝光评估。使用全蓝屏幕测试蓝光过滤眼镜或屏幕滤光片的效果。即使用肉眼也能评估滤光效果。</p><p>摄影师和视频制作人可以将蓝色屏幕用作替代色键背景。特别是拍摄穿绿色衣服的人时,蓝色背景更为合适。</p>

Frequently Asked Questions – 蓝色

长时间暴露在强烈蓝光下可能导致眼睛疲劳和睡眠障碍。但正常使用不构成严重健康风险。限制夜间使用是有益的。

打开全蓝屏幕,透过蓝光滤镜眼镜观看。有效的滤镜应显著减少蓝光并产生偏黄的色调。

蓝色与天空和海洋相关联。研究表明蓝色调可以降低心率并产生镇静效果。

可以,蓝光作为背景照明营造现代而时尚的氛围。可以在观看电影或听音乐时用作环境照明。

蓝色子像素通常更小,工作电压更高。在OLED屏幕中,蓝色有机材料的寿命比红色和绿色短。