Patent ID: 6512560
Filing Date: 2003-01-28
Classification: G02F

Abstract:
A half-transmissive liquid crystal display element comprising:a polarization plate having a polarization axis, for transmitting linearly polarized light along the polarization axis; a light modulation layer arranged behind the polarization plate, for modulating incident light having first and second circular polarization components, in correspondence with an applied voltage; a selectively reflective layer arranged behind the light modulation layer, for reflecting the first circular polarization component of incident light; and a back light source arranged behind the selectively reflective layer, for emitting light having intensity peaks at a plurality of predetermined wavelengths, respectively, toward the selectively reflective layer, wherein the selectively reflective layer has first reflection factors to the first polarization components of incident light falling within first small regions of visible light, including the plurality of predetermined wavelengths, and has second reflection factors to the first polarization components of incident light falling within second small regions of visible light, not including the plurality of predetermined wavelengths, the first reflection factors being set to be smaller than the second reflection factors.