Yes, the Samsung Flip Pro WM85B can definitely be used as a large touchscreen. Here are some relevant features:

- Touchscreen function: the device has a touchscreen function with up to 2,048 pressure points and a latency of only 26 ms, providing a realistic and fluid drawing experience.
- Multi-touch: It supports multi-touch for up to 20 people, allowing for increased interactivity.
- Intuitive writing and drawing functions: The device offers pen and brush modes as well as flexible erasing functions that can be activated with a simple swipe of the finger or palm.

These features make the Samsung Flip Pro WM85B ideal for use as an interactive touchscreen in educational institutions and conference rooms.