Backlight device and three-dimensional display apparatus having the same

A 3D display apparatus comprising:

• a light source configured to generate light;
• a light guide plate configured to change a path of the light and configured to emit the light;
• and
• a display panel configured to transmit the light emitted from the light guide plate and configured to display a first image recognized by a first eye of the user and a second image recognized by a second eye of the user,
• wherein the light guide plate comprises:
• an incident surface upon which the light is incident;
• an exit surface configured to emit the incident light;
• a reflective surface provided opposite to the exit surface;
• and
• a plurality of main patterns separated at uniform intervals, the plurality of main patterns discontinuously provided on the reflective surface and configured to scatter the incident light.

A backlight device comprising:

• a light source configured to generate light;
• and
• a light guide plate configured to emit the light comprising:
• an incident surface upon which the light is incident;
• an exit surface extending perpendicularly from the incident surface and configured to emit the incident light;
• and
• a reflective surface provided opposite to the exit surface and comprising a plurality of main scattering patterns provided intermittently and configured to scatter the incident light,
• wherein the plurality of main scattering patterns are configured to variably scatter the incident light from an end portion of the light guide plate to a middle portion of the light guide plate.

A 3D display apparatus comprising:

• a light source configured to generate light;
• a light guide plate configured to emit the light;
• and
• a display panel configured to transmit the light emitted from the light guide plate and configured to display a first image recognized by a first eye of a user and a second image recognized by a second eye of the user,
• wherein the light guide plate comprises:
• an incident surface upon which the light is incident;
• an exit surface extending perpendicularly from the incident surface and configured to emit the incident light;
• a reflective surface provided opposite to the exit surface and comprising a plurality of main scattering patterns provided intermittently and configured to scatter the incident light, and
• wherein the plurality of main scattering patterns are configured to variably scatter the incident light from an end portion of the light guide plate to a middle portion of the light guide plate.