公开(公告)号：US06552760B1

公开(公告)日：2003-04-22

申请号：US09506267

申请日：2000-02-17

申请人： Takeshi Gotoh ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Noriyuki Ohashi ,  Hisashi Yamaguchi

发明人： Takeshi Gotoh ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Noriyuki Ohashi ,  Hisashi Yamaguchi

IPC分类号： G02F11333

CPC分类号： G02B27/285 ,  H04N9/315

摘要： A lens array 22C has convex lenses 221 and 221C arranged in alternate and staggering manner to one another. In combination with a condenser lens 23, the convex lenses 221 form images of respective convex lenses 211 of a lens array 21 on a plane 24 to be illuminated in overlapping so that an illuminance distribution on the plane 24 is almost uniform, while the convex lenses 221C whose focal length is longer than that of the convex lenses 211 make on the plane 24 an illuminance distribution of a mountain-shape. Flat plate portions and concave lenses may be employed instead of the convex lenses 221C. A polarization conversion element comprises two elements and an element disposed therebetween with its longitudinal direction being perpendicular to the two element. The images of a light emitting part are included in band-shaped useful incident areas. A polarization conversion section comprises a middle part which is thin but has a larger divergent angle and side parts each has a smaller divergent angle and a simpler construction but is thicker with its size larger.

摘要翻译： 透镜阵列22C具有以彼此交替且交错的方式布置的凸透镜221和221C。 与聚光透镜23组合，凸透镜221在重叠的平面24上形成透镜阵列21的各凸透镜211的图像，使得平面24上的照度分布几乎均匀，而凸透镜 焦距长于凸透镜211的焦距的221C2在平面24上形成山形的照度分布。 可以使用平板部分和凹透镜来代替凸透镜221C。 偏振转换元件包括两个元件和设置在其间的元件，其纵向方向垂直于两个元件。 发光部的图像包括在带状有用入射区域中。 偏振转换部分包括薄而具有较大发散角的中间部分，并且侧部分别具有较小的发散角和更简单的结构，但是随着其尺寸较大而变厚。

公开(公告)号：US5959704A

公开(公告)日：1999-09-28

申请号：US741258

申请日：1996-10-30

申请人： Toshihiro Suzuki ,  Yukio Iigahama ,  Hisashi Yamaguchi ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Junji Tomita ,  Hirokazu Aritake ,  Tetsuya Kobayashi ,  Mari Sugawara ,  Motohiko Fukuhara ,  Koji Yoshioka ,  Kazuhiro Takahara

发明人： Toshihiro Suzuki ,  Yukio Iigahama ,  Hisashi Yamaguchi ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Junji Tomita ,  Hirokazu Aritake ,  Tetsuya Kobayashi ,  Mari Sugawara ,  Motohiko Fukuhara ,  Koji Yoshioka ,  Kazuhiro Takahara

IPC分类号： G02F1/13 ,  G02B27/42 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1343 ,  H04N9/31 ,  G03B21/14

CPC分类号： G02F1/133621 ,  H04N9/3108 ,  H04N9/3167

摘要： A display device including a diffraction grating from which a diffracted light of the zeroth order and a diffracted light of the first order having different color light components emerge to establish color separation. An array of micro-lenses is arranged on a liquid crystal panel. The liquid crystal panel has a plurality of picture elements and each picture element includes a plurality of color display dots. The color display dots in each picture element are arranged in the vertical relationship and in the order of wavelength of the light. A green light component of diffracted light of the first order is made incident normal to the liquid crystal panel, and the diffracted light of the zeroth order passes through the liquid crystal panel at a greater angle relative to the normal to the liquid crystal panel.

公开(公告)号：US5764412A

公开(公告)日：1998-06-09

申请号：US543607

申请日：1995-10-16

申请人： Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Tetsuya Kobayashi ,  Takeshi Gotoh

发明人： Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Hamada ,  Mari Sugawara ,  Keiji Hayashi ,  Tetsuya Kobayashi ,  Takeshi Gotoh

IPC分类号： G02B5/30 ,  G02B27/28 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

CPC分类号： G02B27/285 ,  G02B27/283

摘要： Columnar prisms 22 to 24, cross sections of which are parallelograms, are arranged symmetrically on both sides of a columnar prism 21 whose cross section is an isosceles right triangle. The prisms are bonded to their adjacent prisms at polarization separation films D1 to D3 which are dielectric multilayer films. A reflective films is applied on the outermost surface of the outside prism 24. The polarization separation films D1 and D3, which are located in odd-numbered order from the prism 21, transmit incident p-polarized light and reflect incident s-polarized light, the polarization separation film D2 located in even numbered order from the prism 21 transmits the incident s-polarized light and reflects the incident p-polarized light. In order to achieve uniform polarization at the emission surface of a polarization separation/conversion device 20, a 1/2 wave plate C2 is applied on to the emission surfaces of the prisms 22 and 23. The advantages can be achieved in a structure in which the polarization separation film D2 is replaced by a reflective film.

摘要翻译： 柱状棱镜22至24（其横截面为平行四边形）对称地布置在横截面为等腰直角三角形的柱状棱镜21的两侧。 在作为电介质多层膜的偏振分离膜D1至D3处将棱镜结合到其相邻的棱镜。 反射膜被施加在外侧棱镜24的最外表面上。偏振分离膜D1和D3以棱镜21的奇数次数排列，透射入射的p偏振光并反射入射的s偏振光， 从棱镜21以偶数顺序设置的偏光分离膜D2透射入射的s偏振光并反射入射的p偏振光。 为了在偏振分离/转换装置20的发射表面处实现均匀的偏振，将+ E，fra 1/2 + EE波片C2施加到棱镜22和23的发射表面。优点可以是 在偏振分离膜D2被反射膜代替的结构中实现。

公开(公告)号：US20050276072A1

公开(公告)日：2005-12-15

申请号：US10676315

申请日：2003-10-01

申请人： Keiji Hayashi ,  Takeshi Gotoh ,  Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara

发明人： Keiji Hayashi ,  Takeshi Gotoh ,  Toshihiro Suzuki ,  Hisashi Yamaguchi ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Mari Sugawara

IPC分类号： F21V8/00 ,  G01D11/28 ,  G02F1/13357 ,  F21V7/04 ,  F21V29/00

CPC分类号： G02B6/0031 ,  G01D11/28 ,  G02B6/0036 ,  G02B6/0061 ,  G02B6/0071 ,  G02F1/133604 ,  G02F1/133606 ,  G02F2202/28

摘要： The invention relates to a backlight unit for liquid crystal displays, etc.; and its object is to provide a backlight unit not involving the problem that the emitted light leaks out of the optical waveguide, even when the space around the cold-cathode tubes in the light source unit for it is filled with a liquid of which the refractive index is nearly the same as that of the glass material that forms the outer wall of the cold-cathode tubes. The backlight unit comprises a housing 6 which houses cold-cathode tubes 2, 4 therein and of which the inner surface is coated with a light reflector 10; a transparent liquid filled in the housing 6; and an optical waveguide 1 made of a transparent substance and having a light-emitting surface S. The reflective surface of the light reflector 10 has a cross-section profile of X-T-U-V-W-Y, on which the light emitted by the cold-cathode tubes 2,4 is reflected, and the thus-reflected light is led to the light-emitting surface S of the optical waveguide 1 at an incident angle not smaller than the critical angle to the surface S.

摘要翻译： 本发明涉及液晶显示器等的背光单元。 其目的是提供一种背光单元，其不涉及发射的光从光波导中泄漏的问题，即使在其光源单元中的冷阴极管周围的空间填充有折射的液体 指数与形成冷阴极管的外壁的玻璃材料的指数几乎相同。 背光单元包括壳体6，壳体6中容纳冷阴极管2,4，其内表面涂覆有光反射体10; 填充在壳体6中的透明液体; 以及由透明物质制成并具有发光表面S的光波导1.光反射器10的反射表面具有XTUVWY的横截面轮廓，其上由冷阴极管2,4发射的光 被反射，并且将如此反射的光以不小于与表面S的临界角的入射角度导向光波导1的发光表面S.

公开(公告)号：US06246506B1

公开(公告)日：2001-06-12

申请号：US09615687

申请日：2000-07-12

申请人： Tetsuya Kobayashi ,  Mari Sugawara ,  Tetsuya Hamada ,  Toshihiro Suzuki ,  Noriyuki Ohashi ,  Takeshi Gotoh ,  Hisashi Yamaguchi

发明人： Tetsuya Kobayashi ,  Mari Sugawara ,  Tetsuya Hamada ,  Toshihiro Suzuki ,  Noriyuki Ohashi ,  Takeshi Gotoh ,  Hisashi Yamaguchi

IPC分类号： G02F103

CPC分类号： G02F1/13362 ,  G02B5/3025 ,  H04N9/3105 ,  H04N9/3167

摘要： A polarization device includes a reflection-type polarization element disposed at a side to which an optical beam comes in and an absorption-type polarization element disposed behind the reflection-type polarization element, wherein the reflection-type polarization element and the absorption-type polarization element are disposed such that a transmission axis of the reflection-type polarization element coincides with the transmission axis of the absorption-type polarization element. Further, an optical projector using such a polarization device is disclosed.

摘要翻译： 偏振装置包括设置在光束入射侧的反射型偏振元件和设置在反射型偏振元件后面的吸收型偏振元件，其中反射型偏振元件和吸收型偏振 元件被布置成使得反射型偏振元件的透射轴与吸收型偏振元件的透射轴一致。 此外，公开了使用这种偏振装置的光投影仪。

公开(公告)号：US5861927A

公开(公告)日：1999-01-19

申请号：US57058

申请日：1998-04-08

申请人： Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Hisashi Yamaguchi

发明人： Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Tetsuya Hamada ,  Hisashi Yamaguchi

IPC分类号： G02F1/13 ,  G02F1/133 ,  G02F1/13357 ,  G02F1/1335

CPC分类号： G02F1/13306 ,  H04N9/3108 ,  H04N9/312

摘要： A liquid crystal display device includes: a liquid crystal spatial modulating element holding a liquid crystal layer between a pair of parallel substrates, wherein transmission of light incident upon the liquid crystal layer along an incidence direction tilted to a predetermined direction from a normal to the substrates takes a local minimum as a voltage applied to the liquid crystal layer is changed, and the voltage at the local minimum changes as the incidence direction is changed; an illumination optical system for supplying illumination light generally over a whole surface of the liquid crystal spatial modulating element along incidence direction or directions tilted to the predetermined direction; and a driver circuit capable of applying a voltage across the liquid crystal layer, the voltage being generally equal to a voltage which provides the local minimum of the transmission with respect to the illumination light. The liquid crystal display device has uniform display characteristics over a display screen.

摘要翻译： 液晶显示装置包括：液晶空间调制元件，其在一对平行基板之间保持液晶层，其中沿着从基板的法线倾斜到预定方向的入射方向入射到液晶层的光的透射 随着施加到液晶层的电压而改变局部最小值，局部最小电压随入射方向改变而变化; 照明光学系统，用于沿着沿着预定方向倾斜的入射方向或方向向所述液晶空间调制元件的整个表面提供照明光; 以及能够跨越液晶层施加电压的驱动电路，该电压通常等于相对于照明光提供传输的局部最小值的电压。 液晶显示装置在显示屏上具有均匀的显示特性。

公开(公告)号：US5860719A

公开(公告)日：1999-01-19

申请号：US454631

申请日：1995-05-31

申请人： Toshihiro Suzuki ,  Noriyuki Ohasi ,  Tsutomu Nagakari ,  Tetsuya Hamada ,  Hisashi Yamaguchi ,  Masaru Ishiwa

发明人： Toshihiro Suzuki ,  Noriyuki Ohasi ,  Tsutomu Nagakari ,  Tetsuya Hamada ,  Hisashi Yamaguchi ,  Masaru Ishiwa

IPC分类号： F21V29/02 ,  G03B21/16 ,  H04N5/74

CPC分类号： F21V29/673 ,  F21V29/02 ,  G03B21/16 ,  H04N5/7441 ,  H04N9/3141

摘要： A light source such as a metal halide lamp is effectively cooled in an optical apparatus such as a liquid crystal projector. In an optical apparatus which includes a concave mirror 11, a light emitting section 12 arranged in a concave portion of the concave mirror along the optical axis and a cooling structure for cooling a periphery of the light emitting section, the cooling structure is provided with a means for generating an air flow 4, the direction of which is approximately perpendicular to the optical axis of the concave mirror 11, and a means for generating an air flow 5 circulating into the concave portion of the concave mirror 11.

摘要翻译： 诸如金属卤化物灯的光源在诸如液晶投影仪的光学装置中被有效地冷却。 在包括凹面镜11的光学装置中，沿着光轴布置在凹面镜的凹部中的发光部12和用于冷却发光部的周边的冷却结构，冷却结构设置有 用于产生空气流4的装置，其方向大致垂直于凹面镜11的光轴，以及用于产生循环到凹面镜11的凹部中的气流5的装置。

公开(公告)号：US5614780A

公开(公告)日：1997-03-25

申请号：US490804

申请日：1995-06-15

申请人： Toshihiro Suzuki ,  Noriyuki Ohashi ,  Tetsuya Hamada ,  Takashi Kanno ,  Hisashi Yamaguchi

发明人： Toshihiro Suzuki ,  Noriyuki Ohashi ,  Tetsuya Hamada ,  Takashi Kanno ,  Hisashi Yamaguchi

IPC分类号： F21V29/02 ,  G02F1/13357 ,  H01J61/52 ,  H01J65/04 ,  H04N5/74 ,  H01K1/58

CPC分类号： F21V29/67 ,  F21V29/02 ,  H01J61/52 ,  H01J65/044 ,  G02F2001/133628

摘要： A light source for use in a projection type liquid crystal display device. The light source includes an electrodeless light emitting member having a light emitting material sealed in a transparent tube to emit light upon the application of microwave electromagnetic energy. A concave mirror is arranged on the outside of the light emitting member, and the transparent tube is supported by a rotatable rod-like support member which extends through the concave mirror. Means in the form of a vane, a screw or a projection is arranged on the rod-like support member or on the light emitting member for stirring air, while the rod-like support member rotates, to cool the light emitting member.

摘要翻译： 一种用于投影型液晶显示装置的光源。 光源包括无电极发光部件，其具有密封在透明管中的发光材料，以在施加微波电磁能时发光。 在发光构件的外侧设置有凹面镜，透明管由可延伸穿过凹面镜的可转动的杆状支撑构件支撑。 在杆状支撑构件旋转的同时，在杆状支撑构件或发光构件上布置有叶片，螺钉或突起形式的装置，以冷却发光构件。

公开(公告)号：US07163331B2

公开(公告)日：2007-01-16

申请号：US10641720

申请日：2003-08-15

申请人： Toshihiro Suzuki ,  Tetsuya Hamada ,  Mari Sugawara ,  Tetsuya Kobayashi ,  Keiji Hayashi

发明人： Toshihiro Suzuki ,  Tetsuya Hamada ,  Mari Sugawara ,  Tetsuya Kobayashi ,  Keiji Hayashi

IPC分类号： F21V7/04 ,  F21V8/00

CPC分类号： G02B6/0028 ,  G02B6/00 ,  G02B6/003 ,  G02B6/0038 ,  G02B6/0056 ,  G02F1/133615

摘要： A lighting unit and a liquid crystal display device which can improve the efficiency of usable light. The lighting unit includes a light source, a light guide plate, and a truncated pyramid located between the light guide plate and the light source. The truncated pyramid has a base, a top smaller than the base, and a slope linking the base and the top. The light source is placed in close contact with the top of the truncated pyramid, and the light guide plate is placed in close contact with the base of the truncated pyramid. Light is propagated from a light emitting part of the light source to the light guide plate without passing through any air layer. Also, an unnecessary light removing structure is provided in the light guide plate near the incidence surface thereof.

摘要翻译： 照明单元和能够提高可用光效率的液晶显示装置。 照明单元包括光源，导光板和位于导光板和光源之间的截头棱锥。 截头棱锥具有基部，顶部小于基部，以及连接基部和顶部的斜面。 光源被放置成与截顶的金字塔的顶部紧密接触，并且导光板被放置成与截顶金字塔的基部紧密接触。 光从光源的发光部分传播到导光板，而不通过任何空气层。 而且，在导光板的入射面附近设有不必要的光去除结构。

公开(公告)号：US06882388B2

公开(公告)日：2005-04-19

申请号：US10051709

申请日：2002-01-18

申请人： Norio Sugiura ,  Katsufumi Ohmuro ,  Yoshio Koike ,  Kunihiro Tashiro ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Kimiaki Nakamura ,  Mari Sugawara

发明人： Norio Sugiura ,  Katsufumi Ohmuro ,  Yoshio Koike ,  Kunihiro Tashiro ,  Takeshi Gotoh ,  Tetsuya Hamada ,  Keiji Hayashi ,  Toshihiro Suzuki ,  Tetsuya Kobayashi ,  Kimiaki Nakamura ,  Mari Sugawara

IPC分类号： G02F1/1335 ,  G02F1/13357

CPC分类号： G02F1/133553 ,  G02F1/133504 ,  G02F2001/133507 ,  G02F2001/133541 ,  G02F2001/133616 ,  G02F2001/133626

摘要： The present invention is a method of manufacturing a liquid crystal display device, wherein light having an exposure energy is irradiated on the surface of a photo-sensitive resin layer having a predetermined film thickness, and a distribution of thermal deformation characteristics in the thickness direction (or the plane direction) of the photo-sensitive resin layer is formed, then heat treatment is performed to form random undulation (micro-grooves or micro-wrinkles) on the surface of the photo-sensitive resin layer.