Dead Pixel Test and Fix

什么是 Dead Pixel Test and Fix？

Dead Pixel Test is a free no signup browser tool to check any screen for defects. Cycle through 10 full-screen color tests to spot dead, stuck, or hot pixels on monitors, phones, laptops, and TVs. Includes a stuck-pixel repair mode that flashes rapid colors to revive frozen sub-pixels. 100% browser-side, no install, works on LCD, OLED, and QLED.