The Samsung 650TS 65" LCD touchscreen display is an efficient, effective teaching tool. Its touch-sensitive optical technology, interactivity and whiteboard LCD software allow you to illustrate concepts by accessing PowerPoint presentations, videos, live webcam presentations via network, and more. The included whiteboard pen lets you add handwritten notes, even out to the edges of the screen. Its sleek, slim design allows for easy placement. And 1,920 x 1,080 p full HD resolution, 500 nits brightness, 5,000:1 static contrast ratio, non-glare glass and 178 º viewing angle, provides a sharp, clear, brilliant from anywhere in the room.