Why does (consumer) monitor tech always seem to lag TV tech by a few years?

It looks like the situation is still that in the 4k OLED space there are a few ~$4000+ monitors and dozens of ~$1000 TVs. Per the pcpartpicker link, maybe the Gigabyte FO48U will change that, but it's still out of stock. Besides, I feel like this has happened before with HDR and 4k and IPS. First it shows up in TVs, a year later it is cheap in TVs, a year later it is expensive in monitors, and finally it becomes cheap in monitors. But it takes years. Which seems odd, since surely they use the same panels? Is it an industry structure thing, where panel manufacturers integrate and co-develop with TV manufacturers but monitor manufacturers are separate, only get the panels after release, and need a year or three to turn things around?