LED BACK LIGHT DEVICE

摘要

An LED(Light Emitting Diode) back light apparatus is provided to prevent the color spot phenomenon at the square corner of a back light by arranging white light emitting diodes instead of RGB light emitting diodes. Plural red(16), green(12) and blue(14) light emitting diodes are repetitively arrayed on a substrate(20) of a back light apparatus. White light emitting diodes(11) are arrayed at the corner of each substrate instead of the RGB light emitting diodes so that the color spot phenomenon is prevented at the square corner portion of the back light apparatus. The white light emitting diodes are arrayed additionally to the sides for connecting corners of the substrate instead of the RGB light emitting diodes. The RGB light emitting diodes are assembled so that a cluster as one unit is formed. The white light emitting diodes are arrayed instead of the RGB light emitting diodes for constructing the cluster and at this time, the R light emitting diode falls vacant.