1. A liquid crystal display of in-plane-switching type, comprising: a normally-closed liquid crystal display panel including a pair of substrates including a polarizer and a liquid crystal layer sandwiched between the pair of substrates; a light source unit arranged with respect to a rear surface of the liquid crystal display panel; and a spectrum absorbing unit arranged between the normally-closed liquid crystal display panel and the light source unit, including a component for absorbing light spectrum within a predetermined range of wavelength propagated from the light source unit to the liquid crystal display panel, by partial depolarization of polarization of a light emitted by the light source unit; wherein the absorbing component includes a polyvinyl alcohol macromolecular layer including a pigment having an absorption peak at a wavelength of 490 nm.