I am quiet new to Raspberry Pi. Planning to get one for some DIY projects. So while doing some homework on that, found that it can be connected to normal monitor through HDMI, and also some independent small displays lie the 3.4" or 7" maybe touchscreen too. So if some one can tell me what kind of connection type is to be used for the J4?
No screen works on that connector (it's a flat flex connector) until one is released (including software update/driver presumably) by raspberrypi.org, see here: http://www.raspberrypi.org/forums/viewtopic.php?f=64&t=32311#p305332