Backlight module and luminous keyboard using the same

A luminous keyboard, comprising:

• a light guide plate comprising an escape opening and a light-source opening;
• a circuit board disposed under the light guide plate;
• an electronic component disposed on the circuit board, and at least a part of the electronic component being located in the escape opening;
• a reflective layer disposed on a rear surface of the light guide plate, wherein the reflective layer comprises a reflective layer opening corresponding to the escape opening;
• a light-emitting component disposed in the light-source opening;
• a base plate disposed on the light guide plate, wherein the base plate and the circuit board are disposed on two opposite sides of the light guide plate;
• and
• a plurality of keycaps disposed on the base plate, wherein the electronic component is disposed corresponding to a position between two adjacent keycaps.

A luminous keyboard, comprising:

• a key switch structure;
• a light guide plate being disposed under the key switch structure and comprising an escape opening;
• a circuit board disposed under the light guide plate;
• an electronic component coupled to the circuit board, and at least a part of the electronic component being located in the escape opening;
• a light-emitting component coupled to the circuit board and disposed on a surface of the light guide plate;
• and
• a light-shielding layer disposed between the key switch structure and the light guide plate, wherein the light-shielding layer covers a surface of the electronic component.