Every time we turn on the TV and see various food advertisements and food programs, our mouths water, but no matter how attractive the food is or how good the presentation is, we always I can only sit in front of the TV and use my brain to appreciate it, and I can only feel envious. Recently, Japan University of Agricultural Science and Technology demonstrated a TV that can emit various odors at the IEEE conference. There are four fans in the four corners of the screen to blow out the odors. However, the technology is not mature yet, and the scent preparation box cannot be prepared by itself and can only rely on preset methods.
