| abstract |
The present invention relates to a backlight unit including a light guide plate, an optical film having a reverse refractive pattern portion facing the light guide plate when disposed above the light guide plate, and a panel disposed on the optical film to display an image. The reverse refraction pattern portion of the film is formed along the pattern surface of the first refraction portion having a plurality of first optical patterns for condensing and scattering the light incident from the light guide plate at a predetermined angle, and the first optical pattern, the first And a second refraction portion having a plurality of second optical patterns configured to collect the light scattered by the refraction portion and transmit the light to the panel.n n n As a result, productivity and manufacturing cost are reduced, infiltration can be prevented, and a backlight unit capable of exhibiting a wide viewing angle and high brightness is provided.n n n n Backlight Unit, Reverse Refraction Pattern, Optical Film, Infiltration, High Brightness, Diffusion |