https://wccftech.com/samsung-galaxy-note-20-ultra-z-fold-2-ltpo-display-refresh-rate-switching/

Samsung continues to make strides in improving both the display quality as well as the technological aspect to experience the smartphone experience for its loyal customer base. There were a significant number of rumors running around stating that Samsung would employ the use of LTPO screens on the Galaxy Note 20 Ultra to make it extremely power-efficient. Fortunately, the same technology exists on the Galaxy Z Fold 2 and it has way more benefits than just just conserving battery life.

Tipster Ice Universe confirmed the presence of LTPO display technology on both the Galaxy Note 20 Ultra and the Galaxy Z Fold 2, while also stating that the refresh rate will switch between values depending on what kind of content is being shown on the display. He further says that if the user is viewing a normal image, the refresh rate will reduce to as low as 1Hz and increase to 11Hz when needed. When viewing dynamic content, such as videos or when streaming, that refresh rate will switch between 30Hz and 60Hz. With some content being able to playback at 60FPS consistently, this LTPO technology will come in real handy.