Backlight Module and Optical Component Thereof

A backlight module, characterized in that:

• the backlight module comprises:
• an optical component comprising:
• a substrate having a first surface and a second surface which is opposite to the first surface;
• a fluorescent layer formed on the first surface of the substrate;
• and
• a microstructure formed on the second surface of the substrate;
• a fixed plate;
• and
• at least one semiconductor light-emitting device fixing on the fixed plate for emitting at least one incident beam;
• wherein the at least one incident beam is optically refracted or scattered by the microstructure, so that the at least one incident beam uniformly penetrates through the microstructure and the substrate in turn, and then penetrates through the fluorescent layer or excites the fluorescent layer.

An optical component comprises, characterized in that:

• the optical component comprises:
• a substrate having a first surface and a second surface;
• a fluorescent layer formed on the first surface of the substrate;
• and
• a microstructure formed on the second surface of the substrate for at least one beam to be optically refracted or scattered, so that the at least one beam penetrates through the microstructure and the substrate in turn, and then penetrates through the fluorescent layer or excites the fluorescent layer.