Abstract: A method and a structure for improving the uniformity of light emitted from a backlight module are provided. In accordance with the present invention, a plurality of optical microstructures are intermittently distributed on an LGP of a backlight module. Each of the microstructures further includes a plurality of optical sub-microstructures. The optical microstructures and the optical sub-microstructures are distributed on the LGP with varied distribution intensities in three dimensions, such that at where the optical microstructures and the optical sub-microstructures are distributed with a larger distribution intensities the LGP refracts and reflects more light, and at where the optical microstructures and the optical sub-microstructures are distributed with a smaller distribution intensities the LGP refracts and reflects less light.

Abstract: A light guide panel (LGP) has a light incident surface for receiving light. The LGP is configured at a side of a display surface of a reflective display panel. Besides, the LGP includes a main body, a first film, and a plurality of circular light guide patterns. The first film is configured on one side surface of the main body away from the display surface. The circular light guide patterns are configured on the first film, so that the light transmitted in the LGP exits and substantially moves toward the display surface. Each of the circular light guide patterns has a center and a circumference. An included angle is between two lines that respectively connect the center to the circumference located at two sides of the center, and the included angle is 140°˜179°.

Abstract: A method and a structure for improving the uniformity light emitted from a backlight module are provided. In accordance with the present invention, a plurality of optical microstructures are intermittently distributed on an LGP of a backlight module. Each of the microstructures further includes a plurality of optical sub-microstructures. The optical microstructures and the optical sub-microstructures are distributed on the LGP with varied distribution intensities in three dimensions, such that at where the optical microstructures and the optical sub-microstructures are distributed with a larger distribution intensities the LGP refracts and reflects more light, and at where the optical microstructures and the optical sub-microstructures are distributed with a smaller distribution intensities the LGP refracts and reflects less light. In such a way, by designing particular distribution intensities of the optical microstructures and the optical sub-microstructures, the light emitted from the LGP can be uniformed.