The invention discloses a liquid crystal display device. The liquid crystal display device comprises a backlight module, a liquid crystal display panel and a fingerprint recognition layer, the backlight module, the liquid crystal display panel and the fingerprint recognition layer are stacked in sequence, the liquid crystal display panel is arranged between the backlight module and the fingerprintrecognition layer, the fingerprint recognition layer comprises multiple fingerprint recognition modules and a substrate, the fingerprint recognition modules are arranged at intervals, each fingerprint recognition module comprises a sensing layer, a source electrode and a drain electrode, the source electrodes and the drain electrodes are spaced, the substrate covers the source electrodes and thedrain electrodes, and the sensing layers are made of amorphous silicon materials and used for sensing light intensity and generating leakage current. According to the liquid crystal display device, the fingerprint recognition layer can be arranged in any area of the liquid crystal display device, thus fingerprint recognition is achieved in all areas of the liquid crystal display device, normal display is not influenced, arrangement of an individual recognition area is not needed, the device is suitable for fingerprint recognition of a whole-plane screen, and the screen occupying ratio of a front panel of the liquid crystal display device is also effectively increased; the sensing layers have high sensing sensitivity to light intensity, the fingerprint recognition speed is high, and the fingerprint recognition precision is also high.