专业的纯色工作区：在校准的画布上预览、调整亮度并以任何分辨率导出像素完美的 PNG 或 JPEG。
黑屏呈现真正的黑色，适合 OLED 省电、漏光测试、坏点检查与影院级暗场，也可用来隐藏桌面。
技术人员与日常用户用它评估面板、降低暗室光线并让眼睛休息。无需下载。
需要黑暗或测试时，黑屏是浏览器中获得 #000 全屏最简单的方式。
True #000000 black for OLED battery saving where pixels switch off, industry-standard dead-pixel and backlight bleed checks, editing reference black, and distraction-free focus—with exports at any resolution.
A pure #000000 black screen is the industry standard for revealing stuck pixels, backlight bleed, and panel defects. If a pixel is glowing on this screen, it's a defect you can document for warranty claims.
On OLED displays (iPhones, Samsung, high-end laptops), black pixels are physically switched off. Using a true black screen consumes zero power on those subpixels, extending battery life compared with dark wallpapers that are not pure black.
Identify matte lines, color spills, and garbage masks in your video edits. Editors use this absorbing black backdrop to judge contrast and color saturation accurately without visual interference.
Eliminate every visual prompt, icon, and notification. A full black screen removes micro-distractions, allowing your eyes to rest or focus entirely on your physical books or secondary tasks.
Protect your OLED or plasma TV from static image ghosting. Use a solid black screen when playing music or during idle times to keep the panel uniform and avoid permanent burn-in of channel logos.
Fingerprints and dust are almost invisible on a busy desktop. A plain #000 background makes every smudge pop, making it easy to wipe down your monitor and maintain a crystal-clear display.
直达访问量最高的工具合集：恶搞、屏保、假更新、灯光与实用工具。
精选各分类代表工具——每个合集一款亮点，快速获取灵感。
Realistic cracked-glass overlay for harmless prank visuals and short social clips.
试用工具 →Looping ember and flame-inspired animation for warm ambient visual backgrounds.
试用工具 →Experience a realistic Fake Windows 11 Update Screen in your browser. Ideal for pranks, UI demos, and testing fullscreen system-like update visuals.
试用工具 →Aurora Light Screen delivers beautiful northern light inspired visuals with soft flowing gradients and immersive fullscreen ambience for relaxation and calm environments.
试用工具 →Front-camera mirror preview in a clean full-screen frame for quick grooming and webcam checks.
试用工具 →Rain Effect Screen creates a relaxing fullscreen rain ambience with smooth falling rain visuals, calming atmosphere, and immersive sound effects for focus and relaxation.
试用工具 →最近上线的全屏工具与环境体验——目录中的新鲜推荐。
用户评价
Ran it on an older machine and it was smooth. Nice work.
I keep a tab pinned for lighting tests. Works great on my laptop too.
Exported a frame at exact resolution—matched my spec sheet.
Been using this for weeks before shoots—solid colors make it easy to check uniformity across panels.
同一分类中的更多工具——精选四个，始终属于您正在浏览的类别。
关于纯色预览、任意分辨率导出、全屏显示以及将显示器用作测试或光源的简明解答。
WhiteScreenLab 让日常屏幕工具变得简单、快速、人人可用。无需下载软件，一键即可在浏览器中直接启动。
平台汇集全屏彩色屏幕、环境灯光、生产力工具、恶搞屏幕、显示测试与创意资源。每个工具都针对性能进行了优化，加载迅速。
我们专注于简洁设计、流畅全屏表现、准确色彩、多语言支持和无干扰体验，打造完整的在线屏幕工具目的地。
