SUNLIGHT COLLECTING DEVICE AND LIQUID CRYSTAL DISPLAY UTILIZING SUNLIGHT AS BACKLIGHT SOURCE

摘要

A sunlight collecting device (10) comprises a lens substrate (120), a plurality of Fresnel lenses (130), a connector substrate (140), a plurality of optical fiber connectors (150) and a spot following substrate (160). The lens substrate (120) is provided with a plurality of round hollow holes (122). The Fresnel lenses (130) are disposed on the lens substrate (120) corresponding to the round hollow holes (122). The connector substrate (140) is disposed parallel to the lens substrate (120). A distance between the connector substrate (140) and the lens substrate (120) is equal to a focal length. The optical fiber connectors (150) can be adjustably disposed on the connector substrate (140). The spot following substrate (160) disposed between the lens substrate (120) and the connector substrate (140) is used for rotating the lens substrate (120) and the connector substrate (140) simultaneously to enable the Fresnel lenses to directly face sunlight. Further provided is a liquid crystal display utilizing sunlight as a backlight source.