Laptop innovation flop: Detachable displays

Back in the 1990s we had a laptop which had a detachable screen. The rear of the screen also came off so that you could place the screen on an overhead projector (before the days of vga projectors) to project the display on to a screen.

I can't remember the make of it bt it wasn't a popular make. I always wondered why such features weren't more popular.

Removable display or attachable keyboard ...........
Flopped idea or tablet ....

Asus Eeepad is a touchscreen LCD which is connectable to a keyboard. However this is not computer but only function like iPad. It is an iPad with a detachable keyboard.

Someone will be making laptop with removable/detachable LCD soon.
I think this laptop computer is where you can remove the LCD and use it as iPad.