olemus
ISO/IEC 2382:
pildi värskendamise sagedus
= the frequency with which a display image is refreshed

ISO/TR 11065:
värskenduseks kuva tekituste arv sekundis
= the number of times per second at which a display image is produced for refresh

ISO 9241:
kõrgeim võimalik ekraanil teabe muutmise sagedus
= highest frequency with which the screen information can be changed

ülevaateid
https://www.viewsonic.com/library/tech/frame-rate-vs-refresh-rate-whats-the-difference/

https://insights.samsung.com/2020/01/16/how-do-refresh-rates-work-for-monitors/

https://techterms.com/definition/refreshrate

https://www.makeuseof.com/tag/60hz-vs-144hz/