Plastic frame, backlight module and liquid crystal display device

1. A plastic frame comprising:

a support portion for supporting a liquid crystal panel and having:

a first side surface disposed adjacent to and below the liquid crystal panel and provided with multiple first concave structures, wherein the multiple first concave structures are for storing air so that the plastic frame can use the stored air to achieve an insulation of a heat generated by a light source; and

a second side surface disposed away from the liquid crystal panel and opposite to the first side surface;

a thermal conductive member disposed on the second side surface and right below the multiple first concave structures; and

a buffer member disposed between the support portion and the liquid crystal panel and having a third side surface disposed adjacent to the liquid crystal panel and a fourth side surface disposed away from the liquid crystal panel and opposite to the third side surface, and the fourth side surface provides with multiple second concave structures for storing air, wherein, the fourth side surface faces toward the first side surface of the support portion.

2. The plastic frame according to claim 1 , wherein, the multiple first concave structures are spaced at intervals by rows and columns on the first side surface, and the number of each row of the multiple first concave structures is at least two, and the number of each column of the multiple first concave structures is at least two.

3. The plastic frame according to claim 1 , wherein, the thermal conductive member is a stripe structure and is disposed on the second side surface by attaching.

4. The plastic frame according to claim 1 , wherein, the multiple second concave structures are spaced at intervals by rows and columns on the fourth side surface, and the number of each row of the multiple second concave structures is at least two, and the number of each column of the multiple second concave structures is at least two.

5. The plastic frame according to claim 1 , wherein, the first side surface further provides with a recess, and the multiple first concave structures are disposed at a bottom of the recess.

6. The plastic frame according to claim 4 , wherein, the buffer member is disposed within the recess.

7. A backlight module comprising:

a light guide plate;

an optical film; and

a plastic frame comprising

a support portion for supporting a liquid crystal panel, the support portion pressing and holding the light guide plate and the optical film, and having

a first side surface disposed adjacent to and below the liquid crystal panel and provided with multiple first concave structures, wherein the multiple first concave structures are for storing air so that the plastic frame can use the stored air to achieve an insulation of a heat generated by a light source; and

a second side surface disposed away from the liquid crystal panel and opposite to the first side surface and disposed above the light guide plate;

a thermal conductive member disposed on the second side surface and disposed between the second side surface and the light guide plate and disposed right below the multiple first concave structures.

8. The backlight module according to claim 7 , wherein, the multiple first concave structures are spaced at intervals by rows and columns on the first side surface, and the number of each row of the multiple first concave structures is at least two, and the number of each column of the multiple first concave structures is at least two.

9. The backlight module according to claim 7 , wherein, the thermal conductive member is a stripe structure and is disposed on the second side surface by attaching.

10. The backlight module according to claim 7 , wherein, the plastic frame further comprises a buffer member disposed between the support portion and the liquid crystal panel, and having a third side surface disposed adjacent to the liquid crystal panel and a fourth side surface disposed away from the liquid crystal panel and opposite to the third side surface, and the fourth side surface provides with multiple second concave structures for storing air, wherein, the fourth side surface faces toward the first side surface of the support portion.

11. The backlight module according to claim 7 , wherein, the first side surface further provides with a recess, and the multiple first concave structures are disposed at a bottom of the recess.

12. The backlight module according to claim 11 , wherein, a buffer member is disposed within the recess.

13. A liquid crystal display device comprising:

a liquid crystal panel;

a light guide plate; and

a plastic frame comprising:

a support portion for supporting the liquid crystal panel and having

a first side surface disposed adjacent to and below the liquid crystal panel and provided with multiple first concave structures, wherein the multiple first concave structures are for storing air so that the plastic frame can use the stored air to achieve an insulation of a heat generated by a light source; and

a second side surface disposed away from the liquid crystal panel and opposite to the first side surface and disposed above the light guide plate; and

a thermal conductive member disposed on the second side surface and disposed between the second side surface and the light guide plate and disposed right below the multiple first concave structures.

14. The liquid crystal display device according to claim 13 , wherein, the multiple first concave structures are spaced at intervals by rows and columns on the first side surface, and the number of each row of the multiple first concave structures is at least two, and the number of each column of the multiple first concave structures is at least two.

15. The liquid crystal display device according to claim 13 , wherein, the thermal conductive member is a stripe structure and is disposed on the second side surface by attaching.

16. The liquid crystal display device according to claim 13 , wherein, the plastic frame further comprises a buffer member disposed between the support portion and the liquid crystal panel, and having a third side surface disposed adjacent to the liquid crystal panel and a fourth side surface disposed away from the liquid crystal panel and opposite to the third side surface, and the fourth side surface provides with multiple second concave structures for storing air, wherein, the fourth side surface faces toward the first side surface of the support portion.

17. The liquid crystal display device according to claim 13 , wherein, the first side surface further provides with a recess, and the multiple first concave structures are disposed at a bottom of the recess.

18. The liquid crystal display device according to claim 17 , wherein, a buffer member is disposed within the recess.