Backlight module and display device
The present disclosure relates to a backlight module. The backlight module includes a back plate, a circuit layer, a light source and a plurality of connecting leads. The back plate has a first surface and a second surface which are opposite to each other, wherein the back plate is provided with a plurality of through holes penetrating the first surface and the second surface. The circuit layer is disposed on the first surface to form a driving circuit for a light source. The light source is disposed on a surface of the circuit layer away from the back plate and formed integrally with the back plate. The plurality of connecting leads pass through the plurality of through holes one-to-one for connecting the circuit layer and a main circuit board.
1. A backlight module, comprising:
a back plate having a first surface and a second surface which are opposite to each other, wherein the back plate is provided with a plurality of through holes penetrating the first surface and the second surface;
a circuit layer disposed on the first surface to form a driving circuit for a light source;
the light source disposed on a surface of the circuit layer away from the back plate and formed integrally with the back plate; and
a plurality of connecting leads passing through the plurality of through holes one-to-one for connecting the circuit layer and a main circuit board.
2. The backlight module of claim 1 , wherein the backlight module further comprises:
a light guide plate adhered to the back plate and located on a light exit side of the light source;
a backlight film disposed on a side of the light guide plate away from the back plate;
a light shielding tape for fixing the backlight film on a side where the light source is disposed;
wherein the backlight film comprises:
a diffusion sheet disposed on a side of the light guide plate away from the back plate;
a lower prism sheet disposed on a side of the diffusion sheet away from the back plate; and
an upper prism sheet disposed on a side of the lower prism sheet away from the back plate.
3. The backlight module according to claim 2 , wherein on a side where the light source is disposed, the light guide plate protrudes from the diffusion sheet, and the light shielding tape is adhered to a side of the light guide plate away from the back plate and a side of the diffusion sheet away from the back plate.
4. The backlight module of claim 3 , wherein the diffusion sheet comprises:
a first sheet adhered to the light shielding tape; and
a notch provided on a side of the first sheet close to the light source.
5. The backlight module according to claim 4 , wherein the lower prism sheet is adhered to a side of the light shielding tape away from the back plate, and the lower prism sheet comprises:
a second sheet; and
a lug disposed on a side of the second sheet close to the light source and engaging with the notch, the lug being adhered to the light shielding tape;
wherein the upper prism sheet is adhered to a position where the light shielding tape is not adhered to the lower prism sheet.
6. A display device, comprising:
a display panel;
a cover plate disposed on a side of the display panel;
a backlight module disposed on a side of the display panel away from the cover plate;
wherein a back plate comprises:
a back plate body; and
a first bending structure connected to the back plate body;
wherein the backlight module comprises:
a back plate having a first surface and a second surface which are opposite to each other, wherein the back plate is provided with a plurality of through holes penetrating the first surface and the second surface;
a circuit layer disposed on the first surface to form a driving circuit for a light source;
the light source disposed on a surface of the circuit layer away from the back plate and formed integrally with the back plate; and
a plurality of connecting leads passing through the plurality of through holes one-to-one for connecting the circuit layer and a main circuit board.
7. The display device according to claim 6 , wherein on a side where the light source is disposed, the back plate further comprises a second bending structure connected to the first bending structure and extending in a direction which is the same as that of the back plate body;
and wherein the display device further comprises:
a first adhesive portion for adhering the second bending structure and the cover plate.
8. The display device according to claim 6 , wherein on a side opposite to a side where the light source is disposed, the back plate further comprises:
a third bending structure connected to the first bending structure and extending in a direction that is the same as that of the back plate body;
and wherein the display panel is lapped over the third bending structure.
9. The display device of claim 8 , wherein the back plate further comprises a fourth bending structure connected to the third bending structure and forming a preset angle with respect to the third bending structure;
and wherein the display device further comprises:
a second adhesive portion for adhering the third bending structure, the fourth bending structure, the display panel, and the cover plate.
10. The display device according to claim 6 , wherein except the side on which the light source is disposed and the opposite side of the light source, the display device further comprises:
a light shielding adhesive layer for adhering the first bending structure and the display panel.
11. The display device according to claim 6 , wherein the backlight module further comprises:
a light guide plate adhered to the back plate and located on a light exit side of the light source;
a backlight film disposed on a side of the light guide plate away from the back plate;
a light shielding tape for fixing the backlight film on a side where the light source is disposed;
and wherein the backlight film comprises:
a diffusion sheet disposed on a side of the light guide plate away from the back plate;
a lower prism sheet disposed on a side of the diffusion sheet away from the back plate; and
an upper prism sheet disposed on a side of the lower prism sheet away from the back plate.
12. The display device according to claim 11 , wherein on a side where the light source is disposed, the light guide plate protrudes from the diffusion sheet, and the light shielding tape is adhered to a side of the light guide plate away from the back plate and a side of the diffusion sheet away from the back plate.
13. The display device according to claim 12 , wherein the diffusion sheet comprises:
a first sheet adhered to the light shielding tape; and
a notch provided on a side of the first sheet close to the light source.
14. The display device according to claim 13 , wherein the lower prism sheet is adhered to a side of the light shielding tape away from the back plate, and the lower prism sheet comprises:
a second sheet; and
a lug disposed on a side of the second sheet close to the light source and engaging with the notch, the lug being adhered to the light shielding tape;
and wherein the upper prism sheet is adhered to a position where the light shielding tape is not adhered to the lower prism sheet.