Brightness 100%
Timer Mode

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

黄色 background

px
×
px
#FFFF00
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 黄色

<p>黄色屏幕工具将显示器填充为温暖明亮的黄色。黄色是一种充满活力的颜色,与能量和乐观相关联。非常适合创意项目、照明效果和颜色测试。</p><p>在显示器色彩准确性测试中黄色是重要的颜色。黄色由红色和绿色子像素共同工作产生。如果黄色看起来偏橙或偏绿,则显示器的色彩平衡需要调整。</p><p>黄色背景营造温暖的氛围。模拟日落色调的这种颜色提供放松的环境照明。冬季也可用来弥补缺少的阳光。</p><p>在创意摄影中黄色背景传达活力和愉快的感觉。为产品拍摄、人像或社交媒体内容创建引人注目的背景。</p>

Frequently Asked Questions – 黄色

黄色由红色和绿色子像素全功率运行、蓝色子像素关闭产生。因此它是色彩平衡测试的重要颜色。

短时间使用是放松的,但长时间观看可能会疲劳。通过调整亮度可以提高舒适度。

是的,研究表明黄色能唤起乐观、能量和快乐的感觉。暖色调通常与积极情绪相关联。

将显示器用作黄色背景光,可以拍出暖色调照片。特别是在产品和食物摄影中创造令人食欲大增的效果。

纯黄色(#FFFF00)如果看起来偏橙或偏柠檬绿,表明显示器的红绿平衡有偏差。这说明需要校准调整。