Patent ID: 7139048

Claim:
A backlight assembly comprising; a light source to emit a first light and a second light; and a light guide plate including a receiving recess formed at a first end thereof so as to receive the light source, and a guide recess formed at a position adjacent to the receiving recess so as to guide the second light to a second end opposite to the first end of the light guide plate, wherein the first light is provided to the second end of the light guide plate and the second tight is provided to the second end of the light guide plate after reflected from the guide recess, wherein the guide recess comprises a first inclined surface that is inclined to a first direction with respect to the first end of the light guide plate such that the second light from the light source is reflected to the second end of the light guide plate, and wherein the first inclined surface is inclined by an angle of a range from about 22 degrees to about 33 degrees with respect to an imaginary line that is substantially perpendicular to the first end of the light guide plate and intersected with the first inclined surface, and the light guide plate has a refractive index of about 1.49.