Solid state disk

1. A solid state disk, including:

a main body, including a shell portion, a substrate which is disposed on the shell portion and a memory module which is disposed on the substrate, the substrate including a transmission port, the memory module being electrically connected to the transmission port;

at least one light-emitting portion, disposed on the substrate and electrically connected to the transmission port;

at least one scattering light-guiding portion, arranged on the substrate correspondingly to the at least one light-emitting portion without covering any part of the at least one light-emitting portion, each said scattering light-guiding portion having a scattering structure, at least one part of light emitted from each said light-emitting portion projecting toward the scattering structure and being scattered evenly via the scattering light-guiding portion to an exterior of the solid state disk.

2. The solid state disk of claim 1 , wherein the at least one light-emitting portion has a light-emitting angle, the light emitted from the at least one light-emitting portion has a projecting direction and a lightened area, and along the projecting direction, the lightened area is not beyond the scattering structure.

3. The solid state disk of claim 1 , wherein the scattering structure is a rugged structure or a scattering net point structure.

4. The solid state disk of claim 1 , wherein the shell portion has at least one light-penetrable portion, and the at least one light-penetrable portion corresponds to the scattering structure.

5. The solid state disk of claim 4 , wherein the at least one light-penetrable portion includes a decoration plate on the shell portion and a light-penetrable pattern portion disposed on the decoration plate.

6. The solid state disk of claim 1 , wherein each said scattering light-guiding portion is disposed on the substrate and neighboring to at least one said light-emitting portion.

7. The solid state disk of claim 1 , wherein the at least one scattering light-guiding portion is tiltedly arranged correspondingly to the at least one light-emitting portion.

8. The solid state disk of claim 1 , wherein the at least one light-emitting portion is selectively emittable in any of at least two kinds of light in different colors.

9. The solid state disk of claim 1 , wherein the substrate is further provided with a processing unit, the processing unit is electrically connected to the at least one light-emitting portion, and the at least one light-emitting portion is controllable by the processing unit.

10. The solid state disk of claim 1 , wherein the at least one light-emitting portion has a light-emitting angle, the light emitted from the at least one light-emitting portion has a projecting direction and a lightened area, and along the projecting direction, the lightened area is not beyond the scattering structure; the scattering structure is a rugged structure which is capable of total reflection and located on an exterior surface of the scattering light-guiding portion; the shell portion has at least one light-penetrable portion, and the at least one light-penetrable portion corresponds to the scattering structure; the light-penetrable portion includes a decoration plate on the shell portion and a light-penetrable pattern portion disposed on the decoration plate; each said scattering light-guiding portion is disposed on the substrate and neighboring to at least one said light-emitting portion; the at least one scattering light-guiding portion is tiltedly arranged correspondingly to the at least one light-emitting portion, and the light-penetrable portion is tilted relative to the scattering light-guiding portion; the at least one light-emitting portion is selectively emittable in any of at least two kinds of light in different colors; the substrate is further provided with a processing unit, the processing unit is electrically connected to the at least one light-emitting portion, the at least one light-emitting portion is controllable by the processing unit.