Only after mastering teleportation. Our brain smells by analyzing air molecules with the help of receptors. The possibility of affecting the areas that are responsible for the sense of smell may make you think you smell, but this will only work with the smells in your memory. The transfer of a new scent will only be possible with the transfer of molecules containing this scent.
There were some attempts, in 2001 the DigiScents company tried to release the ISmell scent synthesizer. There were also rumors about the release of the Smellit device by Olf-action . As a result, none of the projects was implemented and did not go on sale. It seems to me that such a device will not be able to be designed and put on the market soon, unlike screens where the color is determined by 3 colors, much more components are required to create a certain smell. Where to store them, how to fit them all into a device, how to sell the components and how to ensure safety, because toxic components may be required to produce a certain odor. As for the remote transmission of a specific scent, say, an air freshener, there are probably already smart home systems that allow you to spray a freshener remotely.
Quite a long time ago, in the late 90s or early 00s, I read an article in a computer magazine about the idea of transmitting smells. Technically, it was supposed to be a device similar to an inkjet printer, where instead of 4 tanks with ink, 5-6 different containers with flavors would be used, mixing which it was possible to synthesize different smells. Alas, everything is not so simple, a true color inkjet printer can synthesize almost any color from its set of 4 basic colors, but with smells everything is much more complicated. In that publication, it was said that the novelty was of interest to online cosmetics and perfumery stores, which were then taking their first steps. I retell from memory, I was very skeptical about this idea then, I do not think that the developers have achieved at least some noticeable success. And it's not a fact that now someone wants to invest money in it.
The Internet will allow the transfer of smells to users when practical and sufficient funding arises.
There have been many attempts since 1959 until recently.
There are odor analyzers.
There are scent synthesizers.
There are protocols for transmitting odor descriptions over the Internet.
There were attempts in cinemas several decades ago. Spraying aerosols. The trick was not successful, because you have to remove old odors before introducing new ones, otherwise they will mix. Actually, this was what happened.
Now they are actively studying the supply of information directly to the brain and its reception from the brain. Much is being written about these technologies in the context of deciphering dreams and new ways of communicating between paralyzed and blind people.
That is, right now, all research is focused on other senses, but the sense of smell, in theory, should also appear sooner or later. And then they will be able to transmit odors directly to the head, without the participation of receptors in the nose. And the problem of a timely change of smell will not be ...