LG Display has already demonstrated rollable OLED TVs (and according to reports it aims to release the first such TV to the market in 2019) - but Samsung has been left behind as its current LCD-QLED TV technology choice does not enable rollable TVs.
LGD's prototype rollable TV (unveiled in 2018) rolls vertically, inside a single case at the bottom. According to a new patent recently awarded in the US (USPTO #10,162,387) Samsung has a different design in mind - a TV that rolls horizontally, as you can see in the image above.
Samsung is progressing with its future QD-OLED TV hybrid technology, and according to reports it aims to begin trial production in 2019. It will be interesting to see whether Samsung will opt to produce flexible or even rollable OLED TVs early on.