Illuminating keyboard and light emitting module thereof

A light emitting module, applied in an illuminating keyboard, the illuminating keyboard comprising a keyboard module, the keyboard module having an opaque region, the light emitting module being correspondingly disposed to the keyboard module, the light emitting module comprising:

• a light guiding plate, comprising:
• a first surface, disposed toward the keyboard module;
• a second surface, located on an opposite side of the first surface;
• and
• an accommodating groove, located between the first surface and the second surface and corresponding to the opaque region, the accommodating groove including a first sidewall, a second sidewall, a first light divergence segment and a second light divergence segment, wherein the first light divergence segment is disposed on the first sidewall, and the second light divergence segment is disposed on the second sidewall;
• a first light emitting component, located in the accommodating groove and disposed toward the first sidewall, wherein light beams emitted from the first light emitting component are injected into the light guiding plate via the first light divergence segment;
• and
• a second light emitting component, located in the accommodating groove and disposed toward the second sidewall, wherein light beams emitted from the second light emitting component are injected into the light guiding plate via the second light divergence segment.