It did so with foldable phones the last few CES expos to gauge acceptance, and those actually materialized, so the slide-out handset may be commercialized at some point, too. In fact, Samsung showed a rollable display way back at the SID expo in 2016, so the technology must have matured more by now.

As an alternative to the horizontal slide, Samsung has also patented a vertical sliding mechanism for its rollable display phones, so it could be on or the other, or maybe both that will be showcased at the secret booth today.
We'll keep our ears to the ground, but in the meantime you can take a gander at what the future might bring from Samsung below.
View Full BioDaniel, a devoted tech writer at PhoneArena since 2010, has been engrossed in mobile technology since the Windows Mobile era. His expertise spans mobile hardware, software, and carrier networks, and he's keenly interested in the future of digital health, car connectivity, and 5G. Beyond his professional pursuits, Daniel finds balance in travel, reading, and exploring new tech innovations, while contemplating the ethical and privacy implications of our digital future.
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