Patent ID: 7597468
Filing Date: 2009-10-06
Classification: H05B,Y10S

Abstract:
1. A light source of side-edge type light-emitting diode (LED) backlight unit, for using in a liquid crystal display (LCD), comprising: a substantial LED bar; at least one primary LED set disposed at the LED bar, the at least one primary LED set being composed of a plurality of LEDs and preset as the light source of the LCD; and at least one backup LED set composed of a plurality of LEDs and disposed also at the LED bar; wherein the at least one primary LED set and the at least one backup LED set are arranged in lineal arrays, each primary LED set is correspondent to one backup LED set at the LED bar, and the LEDs of the primary and backup LED sets are arranged in two rows and alternate rows in adjacent columns; consequently, one set of the at least one backup LED set will be enlightened and substituted for one primary LED set as the light source when the primary LED set is broken-down so that the light source for the LCD is maintained at constant levels.