公开(公告)号：US5825443A

公开(公告)日：1998-10-20

申请号：US802277

申请日：1997-02-19

申请人： Eishi Kawasaki ,  Tsukasa Koumura ,  Shoichi Onda ,  Tadao Ohoka

发明人： Eishi Kawasaki ,  Tsukasa Koumura ,  Shoichi Onda ,  Tadao Ohoka

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  H04N9/31

CPC分类号： G02F1/133621 ,  H04N9/3108 ,  G02F1/133526 ,  G02F2203/02 ,  G02F2203/03

摘要： White light projected from a white light source is divided into three light beams of primary colors, i.e., red, green and blue by a dichroic mirror. Three light beams projected from the dichroic mirror are made incident upon a micro-lens array and reflected on and modulated in a liquid crystal panel disposed beneath the micro-lens array. The liquid crystal panel is driven by a driver circuit which supplies color signals to the panel, thereby modulating the light beams in the panel. The modulated light beams are projected from the micro-lens array to a schlieren diaphragm which eliminates scattered light components from the light beams. The light beams then enter into a projection lens and display color images on the screen. Since light beams constituting a picture element consisting of red, green and blue colors are projected from a single micro-lens of the micro-lens array, a color image displayed on the screen has no blur among three primary colors. Since the three primary color beams are projected on the liquid crystal panel and modulated therein, only a single liquid crystal panel having no color filters is used in the display device.

摘要翻译： 从白色光源投影的白光通过二向色镜被分为原色的三个光束，即红色，绿色和蓝色。 从分色镜投影的三个光束入射到微透镜阵列上并在布置在微透镜阵列下方的液晶面板中反射并调制在其上。 液晶面板由向面板提供彩色信号的驱动电路驱动，从而调制面板中的光束。 调制后的光束从微透镜阵列投射到去除来自光束的散射光分量的分光膜片。 然后光束进入投影透镜并在屏幕上显示彩色图像。 由于构成由红色，绿色和蓝色构成的像元的光束从微透镜阵列的单个微透镜投影，所以在屏幕上显示的彩色图像在三原色之间没有模糊。 由于三原色光束投影在液晶面板上并被调制，所以在显示装置中仅使用没有滤色器的单个液晶面板。