| 摘要 |
<p>An edge-type backlight module, comprising: a back plate (2), a backlight source (4) arranged in the back plate (2) and a light guide plate (6) arranged in the back plate (2). A heat-dissipating aluminum extrusion (8) is arranged between the back plate (2) and the backlight source (4). The heat-dissipating aluminum extrusion (8) comprises a first mounting part (82) and a second mounting part (84) perpendicularly connected to the first mounting part (82). The backlight source (4) is mounted on the first mounting part (82). An inclined plane (822) is arranged in a position of the first mounting part (82) close to the second mounting part (84). The inclined plane (822) extends from the connection end of the first and second mounting parts (82, 84) towards the backlight source (4). By arranging an inclined plane (822) at the lower end of the first mounting part (82) of the heat-dissipating aluminum extrusion (8), the edge-type backlight module avoids assembly interference possibly occurring in the prior art, and ensures that the luminous surface of the backlight source (4) and the incidence surface of the light guide plate (6) are in parallel. The structure is simple and easy for fabrication and convenient for mounting. The utilization rate of incident light is increased, and the cost is reduced.</p> |
