| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology for suppressing a lowering of visibility caused by surface reflection in a display unit for changing over a display mode and a mirror mode. <P>SOLUTION: The display unit has a transmission polarization axis variable means (214), a first polarization selection means (231) arranged at an observation side of the transmission polarization axis variable means, transmitting first polarized light and reflecting second polarized light; a second polarization selection means (215) arranged rearward of the transmission polarization axis variable means, transmitting third polarized light, and absorbing or reflecting fourth polarized light; and an illumination means (220) arranged rearward of the second polarization selection means and irradiating the second polarization selection means with light. The illumination means is provided with a reflection and condensing pattern (224a) for reflecting light incoming from the second polarization selection means in the state that it is condensed in an optical axis direction. <P>COPYRIGHT: (C)2004,JPO |
