公开(公告)号：US08308301B2

公开(公告)日：2012-11-13

申请号：US12759027

申请日：2010-04-13

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

IPC分类号： G03B21/00

CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

摘要： Disclosed is an optical unit for an image display device, the unit including: one or a plurality of light sources; one or a plurality of optical elements that control a spread of light; a combining element that combines the beams of light emitted from the light sources; and a scanning element, wherein the light from each of the light sources generates an elliptical beam spot on a screen and the spot has a major axis substantially perpendicular to a scanning direction, the result is that the unit is simple in structure, inexpensive, compact, lightweight, and capable of providing high-resolution image quality, thus providing the display device reduced dimensionally and in weight. Such an image display device using the optical unit is also disclosed.

摘要翻译： 公开了一种用于图像显示装置的光学单元，该单元包括：一个或多个光源; 控制光的扩散的一个或多个光学元件; 组合从光源发射的光束的组合元件; 以及扫描元件，其中来自每个光源的光在屏幕上产生椭圆形光束点，并且光点具有基本上垂直于扫描方向的长轴，结果是该单元结构简单，价格便宜，致密 ，重量轻，并且能够提供高分辨率图像质量，从而为显示装置的尺寸和重量提供了减少的效果。 还公开了使用该光学单元的这种图像显示装置。

公开(公告)号：US09122145B2

公开(公告)日：2015-09-01

申请号：US12912555

申请日：2010-10-26

申请人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Mayumi Nagayoshi ,  Yoshiho Seo ,  Tomoki Kobori

发明人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Mayumi Nagayoshi ,  Yoshiho Seo ,  Tomoki Kobori

IPC分类号： G02B27/48 ,  G03B33/12 ,  G02B27/10 ,  G03B21/14 ,  H04N9/31 ,  G02F1/13 ,  G02F1/1343 ,  G02F1/141

CPC分类号： G03B33/12 ,  G02B27/104 ,  G02B27/48 ,  G02F1/1313 ,  G02F1/134336 ,  G02F1/141 ,  G03B21/008 ,  G03B21/14 ,  G03B21/2033 ,  H04N9/3129 ,  H04N9/3132 ,  H04N9/3135

摘要： A projector using coherent light as a light source includes: one or more coherent light sources emitting coherent light beams; a beam scanner which changes a direction of the coherent light beam; and a beam splitter which splits a beam into multiple segments and changes a phase of light of each split segment, the beam splitter being located in an optical path between the beam scanner and the coherent light source. This projector reduces speckle noises. The beam splitter includes a pair of transparent substrates; a plurality of parallel electrodes disposed on each surface of the pair of transparent substrates, the pair of the parallel electrodes being disposed in a perpendicular direction to each other. Voltages are applied to the respective electrodes at predetermined time intervals so as to produce different potentials in a liquid crystal sandwiched by the transparent substrates.

摘要翻译： 使用相干光作为光源的投影仪包括：发射相干光束的一个或多个相干光源; 改变相干光束的方向的光束扫描器; 以及分束器，其将光束分成多个段并改变每个分割段的光的相位，所述分束器位于光束扫描器和相干光源之间的光路中。 本投影机可减少斑点噪音。 分束器包括一对透明基板; 设置在所述一对透明基板的每个表面上的多个平行电极，所述一对平行电极彼此垂直设置。 电压以预定的时间间隔施加到各个电极，以便在由透明基板夹持的液晶中产生不同的电位。

公开(公告)号：US20130107224A1

公开(公告)日：2013-05-02

申请号：US13672744

申请日：2012-11-09

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

IPC分类号： G03B21/20 ,  G02B27/09

CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

摘要： A beam light source of an image display device which displays an image on a screen by scanning an optical beam in a two-dimensional direction in which the beam light source includes a light source that emits a diffuse light modulated according to an image signal, and an optical element that shapes the light emitted from the light source to the optical beam. The optical beam has an elliptically shaped beam spot on the screen in which a major axis of the beam spot is substantially perpendicular to a scanning direction. A horizontal spot size of the optical beam on an exit surface of the optical element is at least or equal to a horizontal spot size of the optical beam on the screen, and the horizontal spot size of the optical beam on the screen is no greater than a horizontal pixel pitch displayed on the screen.

摘要翻译： 1.一种图像显示装置的光束光源，其通过在二维方向上扫描光束而在屏幕上显示图像，其中所述光束光源包括根据图像信号发射漫射光的光源，以及 光学元件，其将从光源发射的光成形为光束。 光束在屏幕上具有椭圆形的光束点，其中光斑的长轴基本上垂直于扫描方向。 光学元件的出射面上的光束的水平光点尺寸至少等于屏幕上光束的水平光斑尺寸，屏幕上的光束的水平光点尺寸不大于 屏幕上显示的水平像素间距。

公开(公告)号：US08529068B2

公开(公告)日：2013-09-10

申请号：US13672744

申请日：2012-11-09

申请人： Tomoki Kobori ,  Yoshiho Seo ,  Tadayoshi Kosaka ,  Mayumi Nagayoshi ,  Satoshi Ouchi

发明人： Tomoki Kobori ,  Yoshiho Seo ,  Tadayoshi Kosaka ,  Mayumi Nagayoshi ,  Satoshi Ouchi

IPC分类号： G03B21/00

CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

摘要： A beam light source of an image display device which displays an image on a screen by scanning an optical beam in a two-dimensional direction in which the beam light source includes a light source that emits a diffuse light modulated according to an image signal, and an optical element that shapes the light emitted from the light source to the optical beam. The optical beam has an elliptically shaped beam spot on the screen in which a major axis of the beam spot is substantially perpendicular to a scanning direction. A horizontal spot size of the optical beam on an exit surface of the optical element is at least or equal to a horizontal spot size of the optical beam on the screen, and the horizontal spot size of the optical beam on the screen is no greater than a horizontal pixel pitch displayed on the screen.

摘要翻译： 1.一种图像显示装置的光束光源，其通过在二维方向上扫描光束而在屏幕上显示图像，其中所述光束光源包括根据图像信号发射漫射光的光源，以及 光学元件，其将从光源发射的光成形为光束。 光束在屏幕上具有椭圆形的光束点，其中光斑的长轴基本上垂直于扫描方向。 光学元件的出射面上的光束的水平光点尺寸至少等于屏幕上光束的水平光斑尺寸，屏幕上的光束的水平光点尺寸不大于 屏幕上显示的水平像素间距。

公开(公告)号：US08596848B2

公开(公告)日：2013-12-03

申请号：US13091105

申请日：2011-04-20

申请人： Hidenao Kubota ,  Satoshi Ouchi ,  Hiroshi Iwasa ,  Mayumi Nagayoshi ,  Hajime Inoue

发明人： Hidenao Kubota ,  Satoshi Ouchi ,  Hiroshi Iwasa ,  Mayumi Nagayoshi ,  Hajime Inoue

IPC分类号： F21V7/04

CPC分类号： G02B6/0091 ,  G02B6/0021 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/008 ,  G02B6/0083 ,  H01L33/486 ,  H01L2924/0002 ,  H01L2924/00

摘要： A cross section of each divided light guiding plate is formed in a wedge shape, a step is formed at a portion of each divided light guiding plate where LEDs are arranged, and holes used for accommodating the LEDs are formed at the step. A plated face is formed on a lower face of each LED, and is coupled to a wiring substrate through solder. Each LED includes a light-emitting face, a lower frame, and an upper frame. The height of the lower frame of each LED is larger than the height of the upper frame, so that a lower end of the light-emitting face of each LED can be always located higher than a lower end of the divided light guiding plate.

摘要翻译： 每个分开的导光板的横截面形成为楔形，在每个划分的导光板的布置有LED的部分处形成台阶，并且在该步骤形成用于容纳LED的孔。 在每个LED的下表面上形成电镀面，并通过焊料与布线基板耦合。 每个LED包括发光面，下框架和上框架。 每个LED的下框架的高度大于上框架的高度，使得每个LED的发光面的下端总是位于比分割的导光板的下端更高的位置。

公开(公告)号：US20110249220A1

公开(公告)日：2011-10-13

申请号：US13083509

申请日：2011-04-08

申请人： Satoshi OUCHI ,  Hajime Inoue ,  Hidenao Kubota ,  Mayumi Nagayoshi

发明人： Satoshi OUCHI ,  Hajime Inoue ,  Hidenao Kubota ,  Mayumi Nagayoshi

IPC分类号： G02F1/13357 ,  G09F13/04

CPC分类号： G02B6/008 ,  G02B6/0036 ,  G02B6/0061 ,  G02F1/133603

摘要： A plurality of backlight blocks are aligned, each block includes light sources and a unit light guide plate for guiding light from the light sources to the side of a liquid crystal panel, unit diffusion patterns are formed in a zigzag alignment on the unit light guide plate and another diffusion pattern is formed on the back of the unit light guide plate. One side of the unit light guide plate is defined as a light entrance surface and LEDs as the light sources are aligned along the light entrance surface to satisfy p≧a≧c where a indicates the size of the unit diffusion pattern in a direction orthogonal to an exit optical axis of the LEDs, c indicates the size of an LED emission surface in the direction of alignment of the LEDs, and p indicates the pitch of alignment of the light sources.

摘要翻译： 多个背光块对齐，每个块包括用于将来自光源的光引导到液晶面板的一侧的光源和单位导光板，在单位导光板上以Z字形排列形成单位扩散图案 并且在单元导光板的背面形成另一扩散图案。 单位导光板的一侧被定义为光入射面，并且当光源沿着光入射面对准时，LED被定义为满足p≥a≥c，其中a表示单位扩散图案在与 LED的出射光轴，c表示在LED的对准方向上的LED发射面的大小，p表示光源的对准的间距。

公开(公告)号：US08514349B2

公开(公告)日：2013-08-20

申请号：US13083509

申请日：2011-04-08

申请人： Satoshi Ouchi ,  Hajime Inoue ,  Hidenao Kubota ,  Mayumi Nagayoshi

发明人： Satoshi Ouchi ,  Hajime Inoue ,  Hidenao Kubota ,  Mayumi Nagayoshi

IPC分类号： G02F1/1335

CPC分类号： G02B6/008 ,  G02B6/0036 ,  G02B6/0061 ,  G02F1/133603

摘要： A plurality of backlight blocks are aligned, each block includes light sources and a unit light guide plate for guiding light from the light sources to the side of a liquid crystal panel, unit diffusion patterns are formed in a zigzag alignment on the unit light guide plate and another diffusion pattern is formed on the back of the unit light guide plate. One side of the unit light guide plate is defined as a light entrance surface and LEDs as the light sources are aligned along the light entrance surface to satisfy p≧a≧c where a indicates the size of the unit diffusion pattern in a direction orthogonal to an exit optical axis of the LEDs, c indicates the size of an LED emission surface in the direction of alignment of the LEDs, and p indicates the pitch of alignment of the light sources.

摘要翻译： 多个背光块对齐，每个块包括用于将来自光源的光引导到液晶面板的一侧的光源和单位导光板，在单位导光板上以Z字形排列形成单位扩散图案 并且在单元导光板的背面形成另一扩散图案。 单元导光板的一侧被定义为光入射面，并且当光源沿着光入射面对准时，LED被定义为满足p> = a> = c，其中a表示单位扩散图案在方向上的尺寸 与LED的出射光轴正交，c表示在LED的对准方向上的LED发射面的大小，p表示光源的对准的间距。

公开(公告)号：US08009246B2

公开(公告)日：2011-08-30

申请号：US12129743

申请日：2008-05-30

申请人： Seiji Murata ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

发明人： Seiji Murata ,  Yasutaka Tsuru ,  Satoshi Ouchi ,  Mayumi Nagayoshi

IPC分类号： G02F1/1335 ,  G02F1/1333 ,  F21V7/04

CPC分类号： G02F1/133604 ,  G02F1/133608 ,  G02F1/133611

摘要： A direct type backlight unit used in a liquid crystal display device is provided which can suppress lowering of luminance at an electrode portion of a linear light source. A reflecting plate is formed on a side wall of a box-shaped reflector close to an end of a linear light source. The reflector reflects light beams from the linear light source to be guided toward a liquid crystal panel. The reflecting plate on the side wall has at least two inclined surfaces. The inclined surfaces may have a stepped shape or a convex ridge shape. According to this arrangement, it is possible to reduce or eliminate decrease of the luminance level at ends of an effective display area of a liquid crystal panel.

摘要翻译： 提供了一种用于液晶显示装置的直接型背光单元，其可以抑制线性光源的电极部分处的亮度降低。 反射板形成在靠近线状光源的端部的箱形反射器的侧壁上。 反射器反射来自线状光源的光束被引导到液晶面板。 侧壁上的反射板具有至少两个倾斜表面。 倾斜表面可以具有阶梯形状或凸脊形状。 根据该结构，能够降低或消除液晶面板的有效显示区域的端部的亮度水平的降低。

公开(公告)号：US20090059125A1

公开(公告)日：2009-03-05

申请号：US12230726

申请日：2008-09-04

申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC分类号： G02F1/13357

CPC分类号： G02F1/133611 ,  G02F1/133603 ,  G02F2001/133607 ,  G02F2203/02

摘要： An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.

摘要翻译： 一种图像显示装置包括：多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分，设置在多个光源的上方，全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元，用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。

公开(公告)号：US20080297463A1

公开(公告)日：2008-12-04

申请号：US12017371

申请日：2008-01-22

申请人： Yasutaka TSURU ,  Satoshi Ouchi ,  Seiji Murata ,  Mayumi Nagayoshi

发明人： Yasutaka TSURU ,  Satoshi Ouchi ,  Seiji Murata ,  Mayumi Nagayoshi

IPC分类号： G09G3/36 ,  G02F1/13357

CPC分类号： G09G3/3426 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16 ,  H04N5/57 ,  H04N5/66 ,  H04N9/68 ,  H04N21/4318 ,  H04N21/44008

摘要： For the purpose of suppressing untrue black with the change in luminance of video, which is displayed as the same object, being reduced to improve the contrast, there is provided a liquid crystal display apparatus that is capable of: extracting the pixel frequency distribution of an input video signal on a luminance level basis, and extracting the pixel frequency distribution of specific color from a color-difference signal of input video in a screen area, the color-difference signal being determined from the luminance distribution of a plurality of backlights; on the basis of the result of the extraction, determining the control amount of the luminance of the plurality of backlights, and the correction amount of the luminance of a liquid crystal panel, on a screen area basis; controlling the luminance of the plurality of backlights on the basis of the control amount of the luminance; and at the same time, controlling the luminance of the input video signal on the basis of the correction amount of the luminance.

摘要翻译： 为了抑制显示为相同对象的视频亮度变化的不真实黑色，为了提高对比度，提供了一种液晶显示装置，其能够：提取像素频率分布 在亮度级基础上输入视频信号，并且从屏幕区域中的输入视频的色差信号中提取特定颜色的像素频率分布，所述色差信号由多个背光的亮度分布确定; 基于提取结果，基于屏幕区域确定多个背光的亮度的控制量和液晶面板的亮度的校正量; 基于亮度的控制量来控制多个背光的亮度; 并且同时基于亮度的校正量来控制输入视频信号的亮度。