Illuminated keyboard equipped with light emitting keycaps

An illuminated keyboard equipped with light emitting keycaps, comprising:

• a keyboard portion including at least one circuit board contained a plurality of keyboard command portions and a plurality of press members located above the circuit board corresponding to the keyboard command portions and depressible to trigger the keyboard command portions, each press member including a press surface, a holding surface and a coupling surface interposed between the press surface and the holding surface, the press surface and the circuit board forming a light projection zone therebetween;
• and
• a light emitting portion including a lighting unit to provide light to the light projection zone and a light mask plate which includes an aperture to expose the press surface and a light mask portion overlapped over the holding surface, the light mask portion masking light in the light projection zone projected towards the holding surface and confining the light in the light projection zone to project merely to the press surface and the coupling surface.