Patent ID: 8896787
Filing Date: 2014-11-25
Classification: G06F

Abstract:
1. A light-emitting assembly comprising: a light guide plate (LGP) having printed patterns formed on a lower surface thereof; a first infrared light-emitting part including a plurality of first infrared light-emitting diodes (LEDs) disposed at a first side of the LGP, the first infrared LEDs spaced apart by first intervals wherein at least two of the first intervals have different sizes; a second infrared light-emitting part including a plurality of second infrared LEDs disposed at a second side of the LGP, the second infrared LEDs spaced apart by second intervals wherein at least two of the second intervals have different sizes; and a visible light-emitting part including a plurality of visible LEDs disposed at a third side of the LGP, the visible LEDs spaced apart by third intervals wherein at least two of the third intervals have different sizes, wherein the first intervals between the first infrared LEDs and the second intervals between the second infrared LEDs are gradually increased in a direction away from the visible light-emitting part.