Purple Screen Test 4K — 25 Minutes | Dead Pixel & Color Shift Check

Purple Screen Test 4K created for detecting dead pixels, color shifts, panel inconsistencies, and display calibration issues. This 25-minute fullscreen monitor and TV diagnostic video is optimized for OLED, LED, and LCD displays. Perfect for identifying subtle color problems and hidden display defects. 📊 Technical Specs: Color: Purple Resolution: 3840x2160 4K UHD Duration: 25 Minutes FPS: 30 Audio: Silent 👉 Complete fullscreen color test playlist available on the channel.