Backlight module

A backlight module, comprising:

• a light-emitting element disposed on a circuit board;
• a reflective sheet disposed above the circuit board and having a side surface facing the light-emitting element;
• a light guide plate disposed above the reflective sheet and having a light mixing region, the light mixing region having a side surface facing the light-emitting element, wherein the light mixing region is configured to receive light emitted by the light-emitting element;
• a light-outputting sheet disposed above the light guide plate and having a side surface facing the light-emitting element, a light-outputting region, a first light-shielding region, and a second light-shielding region, the first light-shielding region being connected to the side surface of the light-outputting sheet and disposed corresponding to the light mixing region;
• and
• a glass substrate correspondingly disposed above the light-outputting region, the second light-shielding region surrounding at least a part of an outer periphery of the glass substrate,
• wherein the light leaves the light guide plate and then sequentially propagates through the light-outputting region and the glass substrate.