| 摘要 |
An exemplary light diffusion plate includes a main body, and a plurality of diffusion particles dispersed in the main body. The main body includes a first surface and a second surface. The first surface and the second surface are on opposite sides of the main body. The first surface is a flat surface. The second surface defines a plurality of rectangular structures. Each rectangular structure defines four adjacent triangular pyramid depressions. A backlight module using the light diffusion plate is also provided.
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