A liquid crystal display and fabricating method thereof are disclosed, by which a backlight having a simple configuration, a reduced thickness and a low cost can be provided. The present invention includes a liquid crystal display panel having an upper substrate, a lower substrate and liquid crystals between the upper and lower substrates, an organic EL device provided under the lower substrate of the liquid crystal display panel to provide light to the liquid crystal display panel, and a cap boned to at least one of the lower substrate of the liquid crystal display panel and a substrate of the organic EL device to protect the organic EL device.