Of course, if you did have an Apple IIc and wanted a portable monitor for it a small LCD TV with composite input would probably do the job just fine. Adapting the signals from the IIc's output port to directly drive an arbitrary panel would probably be... non-trivial. How non-trivial would probably depend on exactly how forgiving your targeted panel is when it comes to clock speed/etc. (The resolution of the Apple panel is nonstandard by any measure and may well have been made specifically for the application.) If you wanted to *improve* on it it's probably worth noting that the port doesn't really support color; to drive a color display with that port you need to drive an "encoder" that turn the Apple II graphic dot-patterns into a color... like a DAC, but more complicated because it has to emulate the Apple II's weird NTSC color generation system. They did make RGB adapters that plugged into it but they were rare.