Guides — Learn Display Testing & Care
Guides on Fillhex explain how to use fullscreen color tools for real hardware decisions—returns, calibration sanity checks, and daily device care.
Articles target readers in the United States and Brazil with English and pt-BR page content mirrored for each guide slug.
Start with how-to-use if you are new, then dive into pixel testing or OLED-specific topics as needed.
Getting started
how-to-use covers shortcuts, mobile behavior, and sharing links across tools.
Pixel and panel quality
how-to-test-dead-pixels walks warranty-friendly inspection; pair with monitor-cleaning-guide so dust is not mistaken for defects.
OLED education
oled-vs-lcd clarifies black levels and bleed. battery-saving-oled and oled-burn-in-test pages complement long-term ownership habits.
Maintenance
monitor-cleaning-guide lists safe supplies before you run white-screen checks.
Connecting guides to tools
Each guide links to live tools—black screen, slideshow, bleed test—so you can act immediately after reading.
Suggest topics
Contact the team if you need coverage of projector calibration or classroom AV workflows—we expand guides based on reader questions.