公开(公告)号：US07656398B2

公开(公告)日：2010-02-02

申请号：US11190949

申请日：2005-07-28

申请人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

IPC分类号： G09G5/00

CPC分类号： G09G3/3413 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0055 ,  G02B6/0076 ,  G02B6/0078 ,  G09G3/3611 ,  G09G2360/145

摘要： A surface light source device includes light source driving means for driving light sources on a light emission block basis, a light exit area being sectioned into two or more light emission blocks, light quantity detecting means for detecting light quantities on the basis of output light beams that are led out from the two or more light emission blocks, and drive control means for adjusting emission light quantities of the light sources corresponding to the respective light emission blocks on the basis of light quantities that are detected during lighting periods when only one of the light emission blocks is lit up that are subjected to light quantity detection by the light quantity detecting means.

摘要翻译： 面光源装置包括基于发光块驱动光源的光源驱动装置，被分成两个或更多个发光块的光出射区域，用于基于输出光束检测光量的光量检测装置 以及驱动控制装置，用于基于在点亮期间检测到的光量来调节与各个发光块对应的光源的发光量，当仅仅一个 发光块被点亮，由光量检测装置进行光量检测。

公开(公告)号：US20060139960A1

公开(公告)日：2006-06-29

申请号：US11291979

申请日：2005-12-02

申请人： Seiji Sakai ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： F21V7/04

CPC分类号： G02B6/0043 ,  G02B6/0061 ,  G02B6/0076 ,  G02B6/0078 ,  G02F1/133609

摘要： A surface light source device includes a housing having an opening portion provided in a top surface thereof, a reflection sheet disposed on a bottom surface of the housing, a light guide plate disposed on the reflection sheet on a side of the opening, and a light source disposed on at least one of side surfaces of the housing. The reflection sheet has a first reflection region on a side opposite to the light source, and a reflectance of the first reflection region at shorter wavelengths in a wavelength region of visible light outputted from the light source is higher than a reflectance at longer wavelengths in the wavelength region of the visible light.

摘要翻译： 面光源装置包括具有设置在其顶表面中的开口部的壳体，设置在壳体的底面上的反射片，设置在该开口侧的反射片上的导光板，以及光 源设置在壳体的至少一个侧表面上。 反射片在与光源相反的一侧上具有第一反射区域，并且在从光源输出的可见光的波长区域中的较短波长处的第一反射区域的反射率高于在该光源的较长波长的反射率 可见光的波长区域。

公开(公告)号：US20050174806A1

公开(公告)日：2005-08-11

申请号：US11033492

申请日：2005-01-12

申请人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

IPC分类号： G02B6/00 ,  F21V8/00 ,  F21Y101/02 ,  G02F1/13357 ,  F21V7/04

CPC分类号： G02B6/0013 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/004

摘要： A primary object of the present invention is to provide a surface light source device attaining a homogenous luminance distribution on a light emitting surface of a light guiding plate in which a dot light source having a high directivity of emitted light is employed. The device includes: a light guiding plate 5 including a plurality of primary holes in such a manner as to locate each dot light source 3 inside; and dot printing 7a being employed as an auxiliary light source means which diffuses light from the dot light source 3 to the position between dot light sources 3 being adjacent to each other, wherein the dot printing 7 is provided at a base of the light guiding plate 5 and a middle point of the connected dot light sources 3 being adjacent to each other.

摘要翻译： 本发明的主要目的是提供一种在导光板的发光面上获得均匀亮度分布的面光源装置，其中采用具有高发光方向性的点光源。 该装置包括：导光板5，其包括多个主孔，以使每个点光源3位于内部; 并且点印7a被用作将来自点光源3的光漫射到彼此相邻的点光源3之间的位置的辅助光源装置，其中点印刷7设置在导光的基部 连接的点光源3的中间点彼此相邻。

公开(公告)号：US20050024845A1

公开(公告)日：2005-02-03

申请号：US10903296

申请日：2004-07-30

申请人： Akihiro Mori ,  Seiji Sakai ,  Toshiyuki Yoneda

发明人： Akihiro Mori ,  Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： G02F1/13357 ,  F21S2/00 ,  F21S8/04 ,  F21V8/00 ,  F21Y101/02 ,  F21Y103/00 ,  G09F13/04 ,  G09F13/14 ,  F21V7/04

CPC分类号： G02F1/133611 ,  G02F1/133605 ,  G02F1/133615 ,  G09F13/0409 ,  G09F13/14

摘要： The present invention aims to provide a plane light source device having enhanced efficiency of use of light and high brightness uniformity. A plane light source device of the present invention is provided with a housing having an opening section, a scattering plate arranged at the opening section for scattering incoming light and a light source arranged at one side face in the housing, wherein a regular reflection section for regularly reflecting light incoming from the light source is provided in the vicinity of the light source at the bottom surface of the housing that is opposite to the scattering plate and a scatter reflection section for irregularly reflecting light incoming from the light source is provided so as to be adjacent to the regular reflection section.

摘要翻译： 本发明的目的在于提供一种具有增强的光的使用效率和高亮度均匀性的平面光源装置。 本发明的平面光源装置具有壳体，该壳体具有开口部，布置在开口部处的用于散射入射光的散射板和布置在壳体中的一个侧面处的光源，其中，用于 设置在与散射板相对的壳体的底面处的光源附近的规则反射的光，并且设置用于不规则地反射从光源入射的光的散射反射部，以便 与正反射部分相邻。

公开(公告)号：US07393128B2

公开(公告)日：2008-07-01

申请号：US11400230

申请日：2006-04-10

申请人： Seiji Sakai ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： F21V7/04

CPC分类号： G09G3/3413 ,  G02B6/0068 ,  G09G3/342 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0803 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0869

摘要： A planar light source device includes a light source section having a plurality of light emitting diodes as a light source, and a light guiding plate guiding light from the light source section to emit planar light. The light emitting diodes being turned off detect the quantities of light from the other light emitting diodes, and adjust the quantities of light emission of the other light emitting diodes based on the detected quantities of light.

摘要翻译： 平面光源装置包括具有作为光源的多个发光二极管的光源部和引导来自光源部的光以发射平面光的导光板。 关闭的发光二极管检测来自其他发光二极管的光量，并且基于检测到的光量调节其他发光二极管的发光量。

公开(公告)号：US20070147036A1

公开(公告)日：2007-06-28

申请号：US11684350

申请日：2007-03-09

申请人： Seiji Sakai ,  Akihiro Mori ,  Takashi Yamaguchi ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Akihiro Mori ,  Takashi Yamaguchi ,  Toshiyuki Yoneda

IPC分类号： F21V11/00

CPC分类号： G02B6/0051 ,  G02B6/0023 ,  G02B6/0031 ,  G02B6/0096 ,  G02F1/133615

摘要： To obtain a planar light source which is free from brightness variations or chromaticity variations by using a point light source having a high directivity for emitted light, and to provide a liquid crystal display device capable of obtaining superior display characteristics by using this planar light source device. A planar light source device having an opening in the upper surface comprises a hollow box, a diffusion plate disposed in the opening, a reflecting plate disposed on the bottom of the hollow region of the box, and a plurality of point light sources disposed in a row along at least one side surface of the box. This planar light sources device is characterized by including a refracting element disposed parallel to the row of point light sources and between the point light sources and the hollow region for refracting the light from the point light sources, whereby the light at an incident angle at which the brightness is greatest in the luminous intensity distribution of the light radiated to the irradiation subject surface of the refracting element is refracted to the bottom surface of the box by the refracting element.

摘要翻译： 为了获得通过使用具有高发射光方向性的点光源而没有亮度变化或色度变化的平面光源，并且提供能够通过使用该平面光源装置获得优异的显示特性的液晶显示装置 。 在上表面具有开口的平面光源装置包括中空盒，设置在开口中的扩散板，设置在盒的中空区域的底部的反射板和设置在盒的中空区域中的多个点光源 沿着盒子的至少一个侧表面排列。 这种平面光源装置的特征在于包括平行于一列点光源并且在点光源和中空区域之间设置的折射元件，用于折射来自点光源的光，由此，入射角处的光以 通过折射元件将辐射到折射元件的照射对象表面的光的发光强度分布折射到盒的底面，亮度最大。

公开(公告)号：US07201488B2

公开(公告)日：2007-04-10

申请号：US11051337

申请日：2005-02-07

申请人： Takuya Sakamoto ,  Seiji Sakai ,  Toshiyuki Yoneda

发明人： Takuya Sakamoto ,  Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： F21V33/00 ,  A47B23/06

CPC分类号： G02F1/133603 ,  F21V29/767 ,  G02B6/0026 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0083 ,  G02B6/0085 ,  G02F1/133605 ,  G02F1/133615

摘要： A planar light source including a diffusing plate provided at an opening portion of a cabinet, a plurality of point light sources provided along a hollow region formed on a rear face side of the diffusing plate, a reflecting plate provided at inside of a cabinet relative to the diffusing plate by interposing the hollow region therebetween and arranging an end portion thereof on a side of the point light source to be inclined to a front side, and a flexible board provided with a wiring pattern for supplying power to the respective point light sources, in which an end portion of the flexible board is constituted to be arranged at inside of the cabinet by being flexed to a back side of the end portion of the reflecting plate.

摘要翻译： 一种平面光源，包括设置在机壳的开口部分处的扩散板，沿着形成在扩散板的后表面侧的中空区域设置的多个点光源，设置在柜体内部相对于 所述漫射板通过在其间插入中空区域并将其端部设置在所述点光源的一侧以向前倾斜;以及柔性板，其设置有用于向各个点光源供电的布线图案， 其中柔性板的端部构造成通过弯曲到反射板的端部的后侧而布置在机柜的内部。

公开(公告)号：US20060262530A1

公开(公告)日：2006-11-23

申请号：US11400230

申请日：2006-04-10

申请人： Seiji Sakai ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： F21V9/00 ,  F21V7/04

CPC分类号： G09G3/3413 ,  G02B6/0068 ,  G09G3/342 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0803 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0869

摘要： A planar light source device includes a light source section having a plurality of light emitting diodes as a light source, and a light guiding plate guiding light from the light source section to emit planar light. The light emitting diodes being turned off detect the quantities of light from the other light emitting diodes, and adjust the quantities of light emission of the other light emitting diodes based on the detected quantities of light.

摘要翻译： 平面光源装置包括具有作为光源的多个发光二极管的光源部和引导来自光源部的光以发射平面光的导光板。 关闭的发光二极管检测来自其他发光二极管的光量，并且基于检测到的光量调节其他发光二极管的发光量。

公开(公告)号：US07762705B2

公开(公告)日：2010-07-27

申请号：US11609488

申请日：2006-12-12

申请人： Seiji Sakai ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Toshiyuki Yoneda

IPC分类号： G02B6/10

CPC分类号： G02B6/0021 ,  G02B6/0031 ,  Y10S362/80

摘要： A surface light source device according to the invention includes a housing having an opening portion on at least one face, an LED light source held by one face of the housing opposing the opening portion, and a light guiding plate arranged at a position so as to cover the opening portion and the LED light source. The light guiding plate includes a recess provided at a position corresponding to the LED light source for storing a part of the LED light source. A light quantity adjusting means is provided at a bottom part of the recess for adjusting light from the LED light source. The light quantity adjusting means includes a reflection sheet having a reflection function and a transmission function in which a total light transmittance t satisfies t≧πr2 cos θ/{(1−cos θ)(S−πr2)}, supposing that an average radius is defined as r, a distance from the LED light source is defined as H, a light-emitting area of the LED light source is defined as S, and a total light quantity is defined as L.

摘要翻译： 根据本发明的表面光源装置包括壳体，其在至少一个面上具有开口部分，由与壳体的开口部分相对的壳体的一个面保持的LED光源和布置在一个位置上的导光板， 覆盖开口部分和LED光源。 导光板包括设置在与LED光源相对应的位置处的凹部，用于存储一部分LED光源。 光量调节装置设置在凹部的底部，用于调节来自LED光源的光。 光量调节装置包括具有反射函数和透光功能的反射片，其中总透光率t满足t≥＆pgr; r2 cos＆Thetas; / {（1-cos＆Thetas;）（S-＆pgr; r2）} 假设将平均半径定义为r，将距离LED光源的距离定义为H，将LED光源的发光面积定义为S，将总光量定义为L.

公开(公告)号：US07708444B2

公开(公告)日：2010-05-04

申请号：US11033492

申请日：2005-01-12

申请人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

发明人： Seiji Sakai ,  Takuya Sakamoto ,  Toshiyuki Yoneda

IPC分类号： F21V7/00

CPC分类号： G02B6/0013 ,  G02B6/0018 ,  G02B6/0021 ,  G02B6/004

摘要： A primary object of the present invention is to provide a surface light source device attaining a homogenous luminance distribution on a light emitting surface of a light guiding plate in which a dot light source having a high directivity of emitted light is employed. The device includes: a light guiding plate 5 including a plurality of primary holes in such a manner as to locate each dot light source 3 inside; and dot printing 7a being employed as an auxiliary light source means which diffuses light from the dot light source 3 to the position between dot light sources 3 being adjacent to each other, wherein the dot printing 7 is provided at a base of the light guiding plate 5 and a middle point of the connected dot light sources 3 being adjacent to each other.

摘要翻译： 本发明的主要目的是提供一种在导光板的发光面上获得均匀亮度分布的面光源装置，其中采用具有高发光方向性的点光源。 该装置包括：导光板5，其包括多个主孔，以使每个点光源3位于内部; 并且点印刷7a被用作将点状光源3的光漫射到相邻的点光源3之间的位置的辅助光源装置，其中点印刷7设置在导光板的基部 连接的点光源3的中点彼此相邻。