Liquid crystal display device and backlight module thereof

A backlight module comprising a light source, a back plate, and a light guide plate, a plastic frame and an optical film set sequentially disposed above the back plate in that order;

• wherein
• the optical film set comprises at least one lug portion, the lug portion comprises an inverted hook portion and an extension portion connected with the inverted hook portion which extend from an edge of the optical film set toward the plastic frame;
• the plastic frame has connected first supporting portion and second supporting portion which extend toward the light guide plate, the first supporting portion is disposed with an accommodating groove and a blocking portion, the second supporting portion is configured for supporting a display panel and making the display panel be abutted with the first supporting portion;
• the blocking portion is formed with a first notch communicated with the accommodating groove, the extension portion is passed through the first notch, the inverted hook portion is accommodated into the accommodating groove, and the blocking portion is configured for blocking the inverted hook portion to move toward the light guide plate.

A liquid crystal display device comprising a front frame, a display panel and a backlight module;

• the backlight module comprising a light source, a back plate, and a light guide plate, a plastic frame and an optical film set sequentially disposed above the back plate;
• wherein
• the optical film set comprises at least one lug portion, the lug portion comprises an inverted hook portion and an extension portion connected with the inverted hook portion which extend from an edge of the optical film set toward the plastic frame;
• the plastic frame has connected first supporting portion and second supporting portion which extend toward the light guide plate, the first supporting portion is disposed with an accommodating groove and a blocking portion, the second supporting portion is configured for supporting the display panel and making the display panel be abutted with the first supporting portion;
• the blocking portion is formed with a first notch communicated with the accommodating groove, the extension portion is passed through the first notch, the inverted hook portion is accommodated into the accommodating groove, the blocking portion is configured for blocking the inverted hook portion to move toward the light guide plate.