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 |
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代理人 |
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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 |