公开(公告)号：US6157420A

公开(公告)日：2000-12-05

申请号：US49923

申请日：1998-03-30

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Yutaka Takafuji

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Yutaka Takafuji

IPC分类号： G02F1/13 ,  G03B21/00 ,  H04N9/31 ,  G02F1/1335

CPC分类号： H04N9/3105

摘要： A projection-type display apparatus includes a light source; a color separating/synthesizing device arranged to divide light from the light source into three different color light rays; and three reflection-type display devices arranged to reflect the three different color light rays, respectively. The color separating/synthesizing device is further arranged to synthesize the three different color light rays respectively reflected by the three reflection display devices. The color separating/synthesizing device has transmittance of substantially 50% for each of a s-polarized light ray having a first wavelength and a p-polarized light ray having a second wavelength. A difference between the first wavelength of the s-polarized light ray and the second wavelength of the p-polarized light ray is equal to or less than 40 nm.

摘要翻译： 投影型显示装置包括光源; 一种颜色分离/合成装置，被配置为将来自光源的光分成三种不同的彩色光线; 以及分别反射三种不同颜色的光线的三个反射型显示装置。 彩色分离/合成装置还被配置为合成由三个反射显示装置反射的三种不同的彩色光线。 对于具有第一波长的s偏振光和具有第二波长的p偏振光的每一个，分色合成装置具有大致50％的透射率。 s偏振光的第一波长和p偏振光的第二波长之间的差等于或小于40nm。

公开(公告)号：US06183090B2

公开(公告)日：2001-02-06

申请号：US09098455

申请日：1998-06-17

申请人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

IPC分类号： G03B2114

CPC分类号： G02B27/149 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/145 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection type image display apparatus of the present invention includes: a light source; a polarization selective reflection element having a function of reflecting or transmitting a light beam from the light source in accordance with a polarization direction thereof; and an element for modulating a polarization plane of an incident light beam in accordance with an image to be displayed. The polarization selective reflection element is film-like and has an optical transmission axis and an optical reflection axis. The polarization selective reflection element transmits a first linearly polarized light beam, and reflects a second linearly polarized light beam having a polarization plane orthogonal to a polarization plane of the first linearly polarized light beam, regardless of a direction of incidence of a light beam with respect to the polarization selective reflection element.

摘要翻译： 本发明的投影型图像显示装置包括：光源; 具有根据其偏振方向从光源反射或透射光束的功能的偏振选择反射元件; 以及用于根据要显示的图像调制入射光束的偏振面的元件。 偏光选择反射元件是膜状的，并且具有光透射轴和光反射轴。 偏振选择反射元件透射第一线性偏振光束，并且反射具有与第一线性偏振光束的偏振面正交的偏振面的第二线偏振光束，而不管光束的入射方向如何 到偏振选择反射元件。

公开(公告)号：US5150138A

公开(公告)日：1992-09-22

申请号：US657752

申请日：1991-02-21

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada

IPC分类号： G02F1/00 ,  G03B21/00 ,  G03B21/14 ,  G09F9/00 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3152 ,  H04N5/7441

摘要： A projection type image display apparatus which includes an arc lamp for emitting light rays by arc discharge, a reflecting mirror for reflecting the light from the arc lamp, the light rays being made parallel by an optical means such as a condenser lens, and projected into a transmissive display panel. The parallel rays are focused by the microlens array in the respective picture elements. The light rays through the transmissive display panel are projected onto a screen. The arc of the arc lamp is directed perpendicularly to the optical axis of an optical system so that the light rays are made parallel with the optical axis by the optical means.

公开(公告)号：US07202917B2

公开(公告)日：2007-04-10

申请号：US10311467

申请日：2001-06-13

申请人： Hiromi Katoh ,  Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akihito Jinda ,  Tadashi Kawamura ,  Takashi Shibatani

发明人： Hiromi Katoh ,  Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akihito Jinda ,  Tadashi Kawamura ,  Takashi Shibatani

IPC分类号： H04N9/12 ,  H04N9/31

CPC分类号： H04N9/3188 ,  H04N9/3111 ,  H04N9/3167

摘要： A light source, an image display panel including multiple pixel regions, each of which modulates light, light control means for focusing light from the light source onto associated pixel regions according to their wavelength ranges, and optical systems that form an image on a projection plane by the light that has been modulated by the panel are provided. A circuit for generating data representing multiple image subframes from data representing each image frame as a component of the image and getting the subframes displayed by the panel time-sequentially, and an image shifter for shifting a selected one of the subframes on the projection plane are further provided. The same area on the projection plane is sequentially irradiated with light rays that have been modulated by different pixel regions of the panel and that fall within respectively different wavelength ranges.

摘要翻译： 光源，包括调制光的多个像素区域的图像显示面板，根据其波长范围将来自光源的光聚焦到相关联的像素区域上的光控制装置，以及在投影平面上形成图像的光学系统 通过由面板调制的光被提供。 一种电路，用于从表示每个图像帧的数据生成表示多个图像子帧的数据作为图像的分量，并且按时间顺序获取由面板显示的子帧;以及图像移位器，用于移动投影平面上的所选择的一个子帧， 进一步提供。 投射平面上的相同区域依次被已经被面板的不同像素区域调制并分别落在不同波长范围内的光线照射。

公开(公告)号：US06606135B2

公开(公告)日：2003-08-12

申请号：US09964520

申请日：2001-09-28

申请人： Hiroshi Nakanishi ,  Takashi Shibatani ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Takashi Shibatani ,  Hiroshi Hamada

IPC分类号： G02F11335

CPC分类号： G02F1/133526 ,  G02B3/0031 ,  G02B3/0056 ,  G02B27/18

摘要： An optical lens system in accordance with the present invention is arranged so that, when the micro-lens has a curved surface satisfying an inequality of (n2/n1)×sin(&thgr;max)≧1, where n1 indicates an index of refraction of a medium constituting one side of the curved surface of the lens, n2 (n1

摘要翻译： 根据本发明的光学透镜系统被布置成使得当微透镜具有满足不等式（n2 / n1）×sin（thetamax））= 1的曲面时，其中n1表示折射率 构成透镜曲面的一侧的介质，n2（n1

公开(公告)号：US5760850A

公开(公告)日：1998-06-02

申请号：US599320

申请日：1996-02-09

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Takashi Shibatani ,  Yoshihiro Mizuguchi ,  Hiromi Kato

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Takashi Shibatani ,  Yoshihiro Mizuguchi ,  Hiromi Kato

IPC分类号： H04N9/31 ,  G02F1/1335 ,  G02F1/1333

CPC分类号： H04N9/3108 ,  G02F2001/133623

摘要： A projection type color image display apparatus includes: a light source for emitting white light; a first optical element for dividing the white light into a plurality of colored lights and for converging each colored light to form a plurality of spots, the spots of each colored light being formed at different positions from the spots of the other colored light; a liquid crystal display element including a plurality of pixels, the pixels corresponding to the spots and modulating the respective colored lights, whereby an image displayed by the liquid crystal display element is carried by the colored lights; a second optical element for diffracting the colored lights modulated by the liquid crystal display element to make a principal ray of each colored light substantially parallel to a principal ray of the other colored light; and a third optical element for receiving the colored lights from the second optical element and for projecting the image displayed by the liquid crystal display element while the image is enlarged.

摘要翻译： 投影型彩色图像显示装置包括：用于发射白光的光源; 第一光学元件，用于将白光分为多个着色光，并且用于会聚各个着色光以形成多个点，每个有色光的斑点形成在与其它有色光的斑点不同的位置处; 液晶显示元件，其包括多个像素，所述像素对应于所述点并调制各个着色光，由此所述液晶显示元件显示的图像由所述着色灯承载; 第二光学元件，用于衍射由液晶显示元件调制的着色光，以使每个着色光的主光线基本上平行于其它有色光的主光线; 以及第三光学元件，用于从第二光学元件接收彩色光，并且用于在图像放大时投影由液晶显示元件显示的图像。

公开(公告)号：US5726719A

公开(公告)日：1998-03-10

申请号：US536815

申请日：1995-09-29

申请人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

发明人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  H04N5/74 ,  H04N9/31

CPC分类号： G02B27/148 ,  H04N9/3108 ,  G02F2001/133623

摘要： The projection-type color display device of the invention includes: a white light source; a splitting means for splitting white light emitted from the white light source into a first, a second, and a third beam having respectively different wavelength regions; a modulation means for modulating the first, the second and the third beams; an irradiation means for irradiating the first, the second and the third beams onto a principal surface of the modulation means at respectively different angles; and a projection means for projecting the first, the second and the third beams modulated by the modulation means. In the projection-type color display device, the first beam includes a color beam having a weakest intensity among the beams in three primary colors contained in the white light; and a direction of the first beam incident onto the principal surface of the modulation means is closer to a normal of the principal surface of the modulation means as compared with the second and the third beams.

摘要翻译： 本发明的投影型彩色显示装置包括：白光源; 分离装置，用于将从白光源发射的白光分成具有不同波长区域的第一，第二和第三光束; 用于调制第一，第二和第三光束的调制装置; 照射装置，用于以不同的角度将第一，第二和第三光束照射到调制装置的主表面上; 以及用于投影由调制装置调制的第一，第二和第三光束的投影装置。 在投影型彩色显示装置中，第一光束包括在白光中包含的三原色的光束中具有最弱强度的彩色光束; 入射到调制装置的主表面上的第一光束的方向与第二和第三光束相比更接近调制装置的主表面的法线。

公开(公告)号：US6163349A

公开(公告)日：2000-12-19

申请号：US870292

申请日：1997-06-06

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  G09F9/35 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3108 ,  G02F2001/133623

摘要： A microlens array is provided on a light-outgoing side of a monochromic LCD element having a plurality of pixels each corresponding to any one of the three colors R, G, and B. Microlenses of the microlens array respectively correspond to pixel groups each of which is composed of three pixels corresponding to the three colors R, G, and B, respectively. Light fluxes having passed through the microlens array are converged at an entrance pupil position of a projection lens by a field lens and form pixel enlarged images corresponding to the colors R, G, and B. At the entrance pupil position, there is provided a color filter having color regions which respectively correspond to the colors to which the pixel enlarged images correspond. With this arrangement, it is possible to make a diverging angle smaller, at which light passing through the LCD element and the microlens array and being converged on the projection lens by the field lens is diverged. Therefore, there is no need to make the projection lens have a great diameter. As a result, it is possible to provide a projection-type color LCD device having a single-panel arrangement which can be produced at lower costs.

摘要翻译： 微透镜阵列设置在具有多个像素的单色LCD元件的光出射侧上，每个像素分别对应于三种颜色R，G和B中的任一种。微透镜阵列的微透镜分别对应于每个像素组 分别由对应于三种颜色R，G和B的三个像素构成。 已经通过微透镜阵列的光束通过场透镜会聚在投影透镜的入射光瞳位置，并形成对应于颜色R，G和B的像素放大图像。在入射光瞳位置处，提供颜色 滤光器具有分别对应于像素放大图像对应的颜色的颜色区域。 通过这种布置，可以使通过LCD元件和微透镜阵列的光通过场透镜会聚在投影透镜上的发散角变小。 因此，不需要使投影透镜具有较大的直径。 结果，可以提供一种投影型彩色LCD装置，其具有可以较低成本生产的单面布置。

公开(公告)号：US5546206A

公开(公告)日：1996-08-13

申请号：US518826

申请日：1995-08-24

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada

IPC分类号： G02F1/13 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/136

CPC分类号： G02F1/1309 ,  G02F1/133526 ,  G02F2201/508

摘要： A method of concealing a bright defect in a transmission display device which displays by selectively transmitting plural beams different wavelength bands shed onto corresponding pixels of a transmission display element through a microlens according to a voltage applied to each pixel is arranged such that only a beam of a wavelength area shed onto a defective luminance point pixel is selectively blocked. On the other hand, the beam shed onto normal pixels surrounding the defective pixel, wherein a bright defect is not generated would be transmitted through the liquid crystal display panel without being blocked. Therefore, the method enables only the defective luminance point pixel to be concealed without affecting the normal pixels, thereby improving a display quality of the transmission display device.

摘要翻译： 通过根据施加到每个像素的电压通过微透镜选择性地发送多个光束而不同的波长带对应于透射显示元件的相应像素而显示的透射显示装置的隐藏方法，使得只有一束 选择性地阻挡流入有缺陷的亮点像素的波长区域。 另一方面，在不被阻挡的情况下，流过液晶显示面板的未发生明亮缺陷的缺陷像素周围的正常像素的光束被遮蔽。 因此，该方法仅使缺陷亮点像素隐藏而不影响正常像素，从而提高透射显示装置的显示质量。

公开(公告)号：US5475513A

公开(公告)日：1995-12-12

申请号：US249638

申请日：1994-05-26

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akitsugu Hatano

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akitsugu Hatano

IPC分类号： G02F1/135 ,  G02F1/1335 ,  G02F1/133

CPC分类号： G02F1/135

摘要： An image display device is arranged to have a liquid crystal light valve, a liquid crystal display panel, a backlighting unit, and a rod lens array. The liquid crystal light valve serves to form an image from the light applied thereto. The liquid crystal display panel serves to form a light pattern to be written to the liquid crystal light valve. The backlighting unit serves to apply light to the panel. The rod lens array is located between the liquid crystal panel and the liquid crystal light valve so that each of the light acceptance angle .theta. (half angle) and the degree of parallelization .alpha. (half angle) of light are not less than tan.sup.-1 {P/(3.sup.1/2.multidot.L)} (P is a pitch and L is a distance between the incident end of light and the pixel of the matrix type liquid crystal display panel) and at least one of the light acceptance angle .theta. (half angle) and the degree of parallelization a of light is 20.degree. or less.

摘要翻译： 图像显示装置被配置为具有液晶光阀，液晶显示面板，背光单元和棒状透镜阵列。 液晶光阀用于从施加到其上的光形成图像。 液晶显示面板用于形成要写入液晶光阀的光图案。 背光单元用于向面板施加光。 棒状透镜阵列位于液晶面板和液晶光阀之间，使得光的每个光接收角θ（半角）和平行度α（半角）均不小于tan-1 { P /（31 / 2xL）}（P是间距，L是光的入射端与矩阵型液晶显示面板的像素之间的距离），并且光接收角θ（半角） 光的平行度a为20度以下。