发明名称 PROJECTION TYPE DISPLAY APPARATUS AND IMAGE DISPLAY METHOD
摘要 A projection type display apparatus includes illumination unit that emits a plurality of color lights having a predetermined polarization direction, a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively, a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights, a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction, and a correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light incident on the synthesis unit into linearly polarized light.
申请公布号 US2017010524(A1) 申请公布日期 2017.01.12
申请号 US201415115883 申请日期 2014.03.05
申请人 NEC DISPLAY SOLUTIONS, LTD. 发明人 ISHIKAWA Takashi
分类号 G03B21/20;G03B33/12;G03B21/00 主分类号 G03B21/20
代理机构 代理人
主权项 1. A projection type display apparatus comprising: an illumination unit that emits a plurality of color lights having a predetermined polarization direction; a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively; a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights; a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction; and a correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light that is incident on the synthesis unit into linearly polarized light.
地址 Tokyo JP