Patent ID: 11960113
Assignee: HKC CORPORATION LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 12:
13. A display device comprising a display panel and a backlight module, wherein the backlight module comprises a back plate, a light plate, and a plurality of lamp beads; wherein the light plate is arranged opposite to the back plate, and the plurality of the lamp beads are disposed on a side of the light plate facing away from the back plate; the back plate comprises a back plate body, at least one sunken groove, and a thermally conductive adhesive; wherein the back plate body is disposed opposite to and spaced apart from the light plate; the at least one sunken groove is defined in the side of the back plate body opposite to the light plate; the thermally conductive adhesive is disposed in the sunken groove; an air channel is formed between the thermally conductive adhesive and the light plate; wherein the back plate further defines at least one trough connected with the sunken groove, and wherein two ends of each of the at least one trough respectively define an air inlet and an air outlet;
wherein the at least one trough is defined in the back plate body; wherein the air inlet and the air outlet are each a hole-shaped structure running through the back plate body, and do not overlap the thermally conductive adhesive; wherein a side of the thermally conductive adhesive facing the light plate forms a sawtooth structure, the sawtooth structure comprising a plurality of teeth arranged at intervals;
wherein when the backlight module is in use, a distance from the air outlet to a ground is greater than a distance from the air inlet to the ground; and wherein at least one selected from the group consisting of the following two options are used:
the first option being one in which a width of a sunken groove comparatively nearer to the air outlet is greater than a width of another sunken groove comparatively nearer to the air inlet; and
the second option being one in which in the thermally conductive adhesive, a cross-sectional area of an air channel between two adjacent teeth comparatively nearer to the air outlet is smaller than a cross-sectional area of another air channel between two adjacent teeth comparatively nearer to the air inlet.