Optical lens, optical module having the same, and backlight assembly having the same

A backlight assembly comprising:

• a circuit board;
• a receiving container receiving flip circuit board;
• and
• a plurality of optical modules disposed on the circuit board, each of the optical modules comprising:
• a point light source device for generating light;
• and
• an optical lens including an inner curved surface having a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis, and an outer curved surface having a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis, the light generated by the point light source device entering the optical lens through the inner curved surface and exiting from the optical lens through the outer curved surface.

A display apparatus comprising:

• a display panel that displays an image by using light;
• and
• a backlight assembly that provides the display panel with the light, the backlight assembly comprising, a circuit board, a receiving container receiving the circuit board, and a plurality of optical modules disposed on the circuit board, each of the optical modules comprising:
• a point light source device for generating light;
• and
• an optical lens including an inner curved surface having a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis, and an outer curved surface having a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis, the light generated by the point light source device entering the optical lens through the inner curved surface and exiting from the optical lens through the outer curved surface.