1.install
sudo apt-get update
sudo apt-get install xorg lxde-core tightvncserver

2.setup
set up a VNC password:
vncserver

config the xstartup:
nano ~/.vnc/xstartup

Remove the # before #x-window-manager &
Add the line lxterminal &
Add the line /usr/bin/lxsession -s LXDE &

final content following:

#!/bin/sh

xrdb $HOME/.Xresources
xsetroot -solid grey
#x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
x-window-manager &
lxterminal &
/usr/bin/lxsession -s LXDE &
# Fix to make GNOME work
export XKL_XMODMAP_DISABLE=1
/etc/X11/Xsession

3.Restart

vncserver -kill :1
vncserver :1 -geometry 1024x768 -depth 16 -pixelformat rgb565