Liquid crystal display module, mobile communication device, and method of mounting liquid crystal display module

An LCD module principally has an LCD, a backlight module including an LED section, an optical waveguide, and a light reflector. The side faces of the backlight module are provided with fixing sections to mount and fix the LCD module to a case by fastening screws. Since the LCD's display section has a smaller outward form than the LCD, the LCD module is fixed to the case using the fixing sections on the side faces of the backlight module so as not to affect the LCD display section. This enables a space for packaging any other functions to be secured, the frame to be narrowed, and the device to be miniaturized without the need for any special attaching parts.