Reading comments on forums and elsewhere, one aspect of the new Samsung Galaxy Book S that appears to be giving some potential buyers pause is Samsung's less than detailed description of the display panel it has incorporated into the device. We've done a little digging and believe its TFT LCD panel has been supplied to Samsung by BOE and utilizes and uses Advanced Fringe Field Switching (AFFS) technology, derived from IPS technology, to deliver wide viewing angles and a wide color gamut.
https://www.notebookcheck.net/The-mystery-of-the-Samsung-Galaxy-Book-S-display-panel.454247.0.html