曾锋
Screen Issues is a free, browser-based screen test tool for checking monitors, laptops, TVs, phones, and other displays. Run full-screen color, dead-pixel, stuck-pixel, bright-spot, backlight-bleed, gradient, uniformity, and flicker tests with no download, account, or sign-up required. The guided test modes make it easy to spot defective pixels, lines, color issues, uneven lighting, and refresh or flickering problems. Use it when buying or selling a display, checking a device under warranty, validating refurbished hardware, or diagnosing a screen at home. The clean interface keeps attention on the panel while you move through test patterns and compare results. Screen Issues also provides step-by-step guides to help identify common display problems and decide what to do next. It works directly in modern browsers and is built with Next.js and Cloudflare Pages.
