公开(公告)号：EP0883302A3

公开(公告)日：2000-09-27

申请号：EP98109902.1

申请日：1998-05-29

申请人： Hitachi, Ltd.

发明人： Kakuda, Takashi ,  Ouchi, Satoshi ,  Yatsu, Masahiko ,  Ozawa, Naohiro ,  Matsuda, Yutaka ,  Shiaki, Takuya

IPC分类号： H04N9/31 ,  G02F1/1335 ,  G02B27/28

CPC分类号： G02F1/13362 ,  G02B27/283 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection type liquid crystal display device, including: irradiation means having a function of irradiating light emitted from a light source upon an irradiated surface; a liquid crystal display element for modulating the light; and projection means for projecting the light emitted from said liquid crystal display element, wherein said irradiation means comprises: at least one reflection mirror; a polarization beam splitter for dividing the light from the light source into P polarization light and S polarization light; a λ/2 phase shifting plate for rotating a direction of polarization of either one of the P polarization and S polarization lights; polarization means being constructed with a reflection mirror for reflecting either one of the P polarization and S polarization lights; a first lens array being constructed with a plurality of condenser lenses, for collecting the light emitted from said polarization means so as to form a plurality of secondary light source images; and a second lens array being constructed with a plurality of condenser lenses and positioned in vicinity of where the plurality of secondary light source images are formed.

摘要翻译： 一种投影型液晶显示装置，包括：照射装置，具有将从光源发射的光照射到照射面上的功能; 用于调制光的液晶显示元件; 以及用于投射从所述液晶显示元件发出的光的投影装置，其中所述照射装置包括：至少一个反射镜; 用于将来自光源的光分为P偏振光和S偏振光的偏振分束器; 用于旋转P偏振和S偏振光中的任一个的偏振方向的λ/ 2移相板; 偏振装置由反射镜构成，用于反射P偏振和S偏振光中的任一个; 第一透镜阵列，其由多个聚光透镜构成，用于收集从所述偏振装置发射的光，以便形成多个次级光源图像; 以及第二透镜阵列，其由多个聚光透镜构成，并且位于形成有多个次级光源图像的附近。

公开(公告)号：EP0883302B1

公开(公告)日：2008-04-02

申请号：EP98109902.1

申请日：1998-05-29

申请人： Hitachi, Ltd.

发明人： Kakuda, Takashi ,  Ouchi, Satoshi ,  Yatsu, Masahiko ,  Ozawa, Naohiro ,  Matsuda, Yutaka ,  Shiaki, Takuya

IPC分类号： H04N9/31 ,  G02F1/1335 ,  G02B27/28

CPC分类号： G02F1/13362 ,  G02B27/283 ,  H04N9/3105 ,  H04N9/3167

公开(公告)号：EP0883302A2

公开(公告)日：1998-12-09

申请号：EP98109902.1

申请日：1998-05-29

申请人： Hitachi, Ltd.

发明人： Kakuda, Takashi ,  Ouchi, Satoshi ,  Yatsu, Masahiko ,  Ozawa, Naohiro ,  Matsuda, Yutaka ,  Shiaki, Takuya

IPC分类号： H04N9/31 ,  G02F1/1335 ,  G02B27/28

CPC分类号： G02F1/13362 ,  G02B27/283 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection type liquid crystal display device, including: irradiation means having a function of irradiating light emitted from a light source upon an irradiated surface; a liquid crystal display element for modulating the light; and projection means for projecting the light emitted from said liquid crystal display element, wherein said irradiation means comprises: at least one reflection mirror; a polarization beam splitter for dividing the light from the light source into P polarization light and S polarization light; a λ/2 phase shifting plate for rotating a direction of polarization of either one of the P polarization and S polarization lights; polarization means being constructed with a reflection mirror for reflecting either one of the P polarization and S polarization lights; a first lens array being constructed with a plurality of condenser lenses, for collecting the light emitted from said polarization means so as to form a plurality of secondary light source images; and a second lens array being constructed with a plurality of condenser lenses and positioned in vicinity of where the plurality of secondary light source images are formed.