Patent ID: 7172325
Filing Date: 2007-02-06
Classification: G02F,Y10S

Abstract:
1. A backlight unit of a liquid crystal display, comprising: a plurality of light emitting diode packages arranged in a matrix while being spaced a uniform distance apart from each other, each of said light emitting diode packages including one or more light emitting diode chips and being structured such that light generated from the one or more light emitting diode chips is emitted in the horizontal direction; and a reflector comprising a plurality of reflection cells connected to each other in a matrix, wherein each of the reflection cells has one of the light emitting diode packages positioned at the center thereof, and reflects the light, emitted from the light emitting diode package at the center thereof in the horizontal direction, in the vertical direction; wherein each of the light emitting diode packages comprises: a printed circuit board with a conductive pattern for transmitting power formed thereon; a base located on the printed circuit board and having a heat dissipation function for transmitting heat to the printed circuit board; the one or more light emitting diode chips mounted on the base and electrically connected to the conductive pattern of the printed circuit board; and a lens formed on the base in order to change a path of the light, generated from the one or more light emitting diode chips, to the horizontal direction.