Unsual sizes of TFT, LCD or OLED panels?
In short No, there are some companies that provide smaller displays for wearables and small electronics displays, but those are standard sizes , like electronic shelf labels etc.

For larger displays, there is no demand and as such the cost of the NRE of first runs are so high that there is ZERO reason to do this.

If you do need such displays and have the $$ then there are cool companies that can take also any display and cut it down to size.  Of course they can only cut to modulo driver chip size (i.e. they have to cut between driver chip lines) but they can do it. One such company is http://pixelscientific.com/