Yes, it's a tech that can be used to display in 3d, but not sure that's the best categorization choice overall.

You can also make things like holographic lenses [1].

And, "display" doesn't seem right. If you recorded a still image, it's a (literal) record of the light field of a scene that lets you view the scene in 3d, like a magnifying glass functioning from all perspectives [2]. You do get the "display" of a 3d scene out of it, when used that way.

Fun fact, you can make your own at home with gelatin, some photo chemicals [3], a laser, and a ludicrously stable table. DIY hologram is going to be one of the first things I do when I retire.

[1] Used in HUDs, like in fighter jets. https://en.wikipedia.org/wiki/Holographic_optical_element

[2] https://www.youtube.com/watch?v=iMdvBmePm9U and https://www.youtube.com/shorts/DnjATyPuFFk

[3] https://holowiki.org/wiki/Dichromated_Gelatin