Liquid crystal display device

A liquid crystal display device comprising:

• a light source;
• alight guide plate including a front surface, a back surface on the side opposite to the front surface, and an edge surface connecting the front surface with the back surface, the light guide plate being arranged such that the edge surface faces the light source, the light guide plate internally reflecting light incident from the edge surface and causing surface emission from the front surface;
• a liquid crystal display panel arranged so as to face the front surface of the light guide plate;
• and
• a reflective sheet arranged so as to face the back surface of the light guide plate, wherein
• the back surface includes a first portion and a second portion, the second portion having a surface located at a position recessed relatively from a surface of the first portion,
• the surface of the first portion is a rough surface,
• the surface of the second portion is a smooth surface, and
• the reflective sheet is in contact with the first portion but avoids contact with the second portion.