公开(公告)号：US06259496B1

公开(公告)日：2001-07-10

申请号：US09325127

申请日：1999-06-03

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F11335

CPC分类号： G02B6/0043 ,  G02B6/0053 ,  G02B6/0056 ,  G02F1/133615 ,  G02F1/13362

摘要： In a backlight device 10 comprising a light guide 12, a light source 14, a prism sheet 16, a polarized beam splitter sheet 18, and a light reflection sheet 20, the light reflection sheet 20 is composed with the provision of a regular reflection plane 20A in a shape of flat surface, and the direction of the normal standing on the regular reflection plane 20A is substantially the same as the directions of the normals standing respectively on the above-mentioned prism sheet 16 and on the polarized beam splitter sheet 18.

摘要翻译： 在包括导光体12，光源14，棱镜片16，偏振分束片18和光反射片20的背光装置10中，光反射片20由具有规则的反射面 20A的正面反射面20A的正方体的方向与上述棱镜片16和偏光分束片18上的法线方向基本相同。

公开(公告)号：US6147734A

公开(公告)日：2000-11-14

申请号：US464792

申请日：1999-12-16

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： G02F1/1335 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/139

CPC分类号： G02F1/133555 ,  G02F1/133528 ,  G02F1/13471 ,  G02F1/133536 ,  G02F1/1393 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2203/01 ,  G02F2203/02

摘要： In a combination reflective/transmissive liquid-crystal display device, when the liquid-crystal display device is in the transmissive mode, unpolarized light from a light source passes through a circular polarization separating layer, a half-wavelength layer in the off condition, and a first bidirectional dichroic circular polarizing layer and then strikes a liquid-crystal cell, the retardation value of which, as a result of an electrical field applied thereto, changes so as to shift light 0 to .pi., thereby modulating incident circularly polarized light, which is caused to strike a second bidirectional dichroic circular polarizing layer, the transmitted component in which serves as the display light. In the reflective mode, external light passes through the second bidirectional dichroic circular polarizing layer, the liquid-crystal cell, the half-wavelength layer which has been turned on, and the first bidirectional dichroic circular polarizing layer, and is then reflected by the circular polarization separating layer so as to become circularly polarized light that also serves as the display light.

摘要翻译： 在反射/透射型液晶显示装置的组合中，当液晶显示装置处于透射模式时，来自光源的非偏振光通过圆偏振分离层，处于关闭状态的半波长层，以及 第一双向二向色圆偏振层，然后撞击液晶单元，其作为施加于其上的电场的结果的延迟值发生变化，以将光0偏移到pi，从而调制入射圆偏振光，其中 引起第二双向二向色圆偏振层，其中透射分量用​​作显示光。 在反射模式中，外部光通过第二双向二向色圆偏振层，液晶单元，已经导通的半波长层和第一双向二向色圆偏振层，然后被圆形 偏振分离层，成为也作为显示光的圆偏振光。

公开(公告)号：US6104455A

公开(公告)日：2000-08-15

申请号：US130462

申请日：1998-08-07

申请人： Keiji Kashima

发明人： Keiji Kashima

IPC分类号： F21V8/00 ,  G02B5/02 ,  G02B6/00 ,  G02B27/28 ,  G02F1/1335 ,  G02B5/30

CPC分类号： G02B6/0056 ,  G02B27/283 ,  G02B5/0221 ,  G02B5/0242 ,  G02B5/0278 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0051

摘要： A back light device 10 comprises a light source 12, a lightconductor 14 for outputting light from the light source from its outputting surface 14B, a light diffusing sheet 16 for receiving diffused light from the lightconductor 14 and shifting the maximum intensity direction to the direction of the normal standing on the light outputting face 16B, a polarized beam splitting sheet 18 through which one polarized light component among the light from the light diffusing sheet 16 is transmitted and on which the other polarized light component is reflected.

摘要翻译： 背光装置10包括光源12，用于从其输出表面14B输出来自光源的光的光导体14，用于接收来自光导体14的漫射光的光散射片16，并将最大强度方向移动到 在光输出面16B上的正常站立，透射来自光漫射片16的光中的一个偏振光分量的偏振分束片18，并且另一个偏振光分量被反射。

公开(公告)号：US5647655A

公开(公告)日：1997-07-15

申请号：US296491

申请日：1994-08-08

申请人： Keiji Kashima ,  Naoki Yoshida

发明人： Keiji Kashima ,  Naoki Yoshida

IPC分类号： G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G09F13/04 ,  G09F13/18 ,  F21V7/04

CPC分类号： G02B6/0021 ,  G02B6/005 ,  G09F13/0409 ,  G09F13/18 ,  G02B6/0031 ,  G02B6/0071 ,  G09F2013/1831

摘要： In a back lighting device for a side light type panel, one end portion of a specular or light diffusing/reflecting film covering a linear light source is bonded to one end portion of a light conducting plate which is on the side of its light emerging surface and is in proximity of the linear light source, and a light diffusing/reflecting film is laid through an air layer on the part of the rear surface of the light conducting plate which corresponds to the junction. The back lighting device of the invention is small in size, large in effective light emitting area when compared with its external dimensions, and excellent in the distribution of luminance. Hence, it can be used as a back light device that is highly efficient in converting power to luminance.

摘要翻译： 在侧光型面板的背照明装置中，覆盖线状光源的镜面或光漫射/反射膜的一个端部被接合到导光板的位于其光出射表面侧的一个端部 并且靠近线性光源，并且光扩散反射膜通过对应于接合部的导光板的后表面的一部分上的空气层铺设。 本发明的背照明装置尺寸小，与其外形尺寸相比有效发光面积大，亮度分布优异。 因此，它可以用作在将功率转换成亮度方面高效的背光装置。

公开(公告)号：US5618095A

公开(公告)日：1997-04-08

申请号：US416001

申请日：1995-04-04

申请人： Keiji Kashima ,  Mitsuru Fukamachi ,  Naoki Yoshida

发明人： Keiji Kashima ,  Mitsuru Fukamachi ,  Naoki Yoshida

IPC分类号： F21V7/00 ,  F21V7/09

CPC分类号： F21V7/005 ,  F21V7/09

摘要： At least part of a reflector surface covering a rod-shaped light source is a continuous body having such a shape that in a plane perpendicular to the central axis of the rod-shaped light source, a ray emitted from a light emitting point on the surface of the rod-shaped light source in the tangential direction going away from a light conducting plate is reflected back to the vicinity of the light emitting point. According to another aspect, at least part of a reflector surface covering a rod-shaped light source located between the rod-shaped light source and the light conducting plate is part of a parabola whose focus is substantially located on the side face of the light conducting plate in a plane perpendicular to the central axis of the rod-shaped light source.

摘要翻译： 覆盖杆状光源的反射器表面的至少一部分是具有这样一种形状的连续体，即在垂直于棒状光源的中心轴的平面中，从表面上的发光点发射的光线 沿着远离导光板的切线方向的棒状光源被反射回到发光点附近。 根据另一方面，覆盖位于棒状光源和导光板之间的棒状光源的反射器表面的至少一部分是抛物线的一部分，其焦点基本上位于导光板的侧面 在与棒状光源的中心轴垂直的平面上。

公开(公告)号：US5289351A

公开(公告)日：1994-02-22

申请号：US854076

申请日：1992-03-19

申请人： Keiji Kashima ,  Osamu Shoji ,  Naoki Yoshida

发明人： Keiji Kashima ,  Osamu Shoji ,  Naoki Yoshida

IPC分类号： G02B5/02 ,  F21V7/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/14 ,  F21V7/04

CPC分类号： G02B6/0051 ,  F21V7/00 ,  G02B6/0036 ,  G02B6/0055

摘要： A backlighting device for display panels operating on the edge lighting method that comprises a light conducting plate made of a light-transmissive material, a layer of light-diffusing material that partly covers one major surface of the light conducting plate, and a light diffusing/reflecting plate that covers the thus covered area of the light conducting plate. The light conducting plate is provided on its exit face with a film that is coarser grained on the exit face than on the entrance face (the side closer to the light conducting plate) and which, when provided on the exit face of the light conducting plate, will increase the luminance of light issuing from the exit face of the light conducting plate. This backlighting device produces satisfactory luminance and can be used as a high-performance model that achieves a high efficiency of power to luminance conversion at least in the direction of the line normal to the exit face.

摘要翻译： 一种用于边缘照明方法操作的显示面板的背光装置，包括由透光材料制成的导光板，部分覆盖导光板的一个主表面的光漫射材料层，以及光扩散/ 覆盖导光板这样被覆盖的区域的反射板。 导光板在其出射面上设置在出射面上比在入射面（靠近导光板的一侧）更粗糙的膜，并且当设在导光板的出射面上时 会增加从导光板的出射面发出的光的亮度。 该背光装置产生令人满意的亮度，并且可以用作至少在垂直于出射面的线的方向上实现高亮度转换效率的高性能模型。