Abstract: The present invention provides a light guide panel and a backlight module using the light guide panel. The light guide panel is disposed corresponding to a light source module of the backlight module. The light guide panel mainly comprises a plate, a plurality of microstructures and a plurality of protrusions. The plate is disposed close to the light source module and includes a microstructure surface. The microstructures and the protrusions are disposed on the microstructure surface, and the heights of the protrusions are greater than those of the microstructures, and a plurality of the microstructures are disposed between the adjacent protrusions.

Abstract: A display module includes a display panel and a fingerprint sensor. The display panel includes a display region, a peripheral region next to the display region, an active device array substrate, and an opposite substrate. The fingerprint sensor is disposed in the peripheral region of the active device array substrate of the display panel. Besides, the fingerprint sensor includes a light guide element, a light source, and a photosensor array. The photosensor array is disposed on the active device array substrate. The light guide element is disposed over the photosensor array. The light source is disposed on a side surface of the light guide element or below the light guide element.

Abstract: The present invention provides a light guide panel and a backlight module using the light guide panel. The light guide panel is disposed corresponding to a light source module of the backlight module. The light guide panel mainly comprises a plate, a plurality of microstructures and a plurality of protrusions. The plate is disposed close to the light source module and includes a microstructure surface. The microstructures and the protrusions are disposed on the microstructure surface, and the heights of the protrusions are greater than those of the microstructures, and a plurality of the microstructures are disposed between the adjacent protrusions.