Light emitting diode module and back light assembly

A backlight assembly comprising:

• a light emitting diode module having a light emitting element;
• a reflective plate having hole corresponding to the light emitting element;
• and
• a cover bottom enclosing the reflective plate and the light emitting diode module,
• wherein the light emitting diode module comprises:
• a substrate including a first insulating layer, a second insulating layer, and a metal layer between the first and the second insulating layers;
• a groove formed at the first insulating layer for exposing the metal layer;
• and
• the light emitting element disposed at the groove,
• wherein the light emitting element including an LED chip and body part surrounding the LED chip.

A backlight assembly comprising:

• a cover bottom having a light emitting element;
• a driving board disposed at one side of the cover bottom for driving the light emitting element;
• and
• a reflective plate having a hole corresponding to the light emitting element, and mounted on the cover bottom.