Light guide plate and liquid crystal display device using the same

A light guide plate for reflecting incident light from an end surface of the light guide plate in an inside to obtain surface emission from a front surface thereof,

• the light guide plate comprising protrusions and recesses which are formed on one of the front surface and a rear surface on an opposite side of the front surface,
• wherein the protrusions and recesses are formed of a shape in which a plurality of first mountain-range shapes and a plurality of second mountain-range shapes are combined,
• the plurality of first mountain-range shapes each including a first ridge continuing along a first direction, which is a direction toward the inside from the end surface,
• the plurality of second mountain-range shapes each including a second ridge continuing along a second direction intersecting with the first direction,
• wherein each of the plurality of first mountain-range shapes includes a pair of first side surfaces on both sides of the first ridge, and
• wherein each of the plurality of second mountain-range shapes includes a pair of second side surfaces on both sides of the second ridge.