Patent ID: 8643265

Claim:
A backlight assembly comprising a plurality of light generating blocks each sequentially outputting light having a plurality of colors and having different wavelengths, the backlight assembly comprising: a first base substrate; a second base substrate facing the first base substrate; a plurality of electroluminescent units disposed between the first base substrate and the second base substrate and arranged in each of the light generating blocks; and a barrier disposed between the first base substrate and the second base substrate and positioned at a boundary between two adjacent light generating blocks, wherein each of the electroluminescent units comprises: a first electrode arranged on the first base substrate; a plurality of electric field emitters arranged on the first electrode to emit an electron beam; an insulating layer arranged on the first electrode and provided with a plurality of openings to expose the electric field emitters; a plurality of second electrodes arranged on the insulating layer to control an operation of the electric field emitters, respectively; a third electrode arranged on a surface of the second base substrate, the third electrode being spaced apart from the first electrode at a predetermined distance and facing the first electrode to accelerate the electron beam emitted from the electric field emitters; a plurality of fluorescent layers arranged on a surface of the third electrode to face the first electrode, the fluorescent layers colliding with the electron beam to output the light having the plurality of colors; and a reflective layer arranged between the fluorescent layers and the electric field emitters and provided with an opening that is formed corresponding to the electric field emitters to transmit the electron beam the reflective layer reflecting the light having the plurality off colors.