Light emitting diode lamp unit for liquid crystal display device, has LED chips arranged at fixed intervals in lower position of optical lens, and lower reflecting sheet arranged on bottom surface of chip

摘要

The LED lamp unit (10) includes an optical lens (81) with concave center and convex edge portions. Several LED chips (82) are arranged at fixed intervals in the lower portion of the optical lens. A lower reflecting sheet (83) is arranged on the bottom surface of the LED chip.