公开(公告)号：US07738054B2

公开(公告)日：2010-06-15

申请号：US12035155

申请日：2008-02-21

申请人： Takamitsu Okumura ,  Osamu Iwasaki ,  Toshiaki Endo

发明人： Takamitsu Okumura ,  Osamu Iwasaki ,  Toshiaki Endo

IPC分类号： G02F1/1335

CPC分类号： G02B6/0023 ,  G02B6/0073

摘要： The liquid crystal display device with a simple configuration is capable of emitting light with a desired color temperature, achieving high light use efficiency, and displaying high quality images. The liquid crystal display device includes a planar lighting device and a liquid crystal display panel. The planar lighting device includes a light source having LED chips for emitting blue light, a transparent light guide plate having a light entrance plane admitting light emitted by the light source and a light exit plane emitting planar light, and a fluorescent member disposed between the light emission plane and the light entrance plane and having one or more fluorescent substance coated areas for emitting white light by converting blue light from the light source into white light and one or more blue light passing areas passing blue light as blue light. The liquid crystal display panel essentially includes red, green and blue filters.

摘要翻译： 具有简单结构的液晶显示装置能够发射具有所需色温的光，实现高的光利用效率和显示高质量的图像。 液晶显示装置包括平面照明装置和液晶显示面板。 平面照明装置包括具有用于发射蓝光的LED芯片的光源，具有允许由光源发射的光的光入射面的透明导光板和发射平面光的光出射面以及设置在光之间的荧光部件 发射平面和光入射面，并且具有通过将来自光源的蓝光转换成白光并且通过蓝光的一个或多个蓝光通过区域作为蓝光而具有用于发射白光的一个或多个荧光物质涂覆区域。 液晶显示面板基本上包括红色，绿色和蓝色滤光片。

公开(公告)号：US07645048B2

公开(公告)日：2010-01-12

申请号：US11940702

申请日：2007-11-15

申请人： Osamu Iwasaki ,  Takamitsu Okumura ,  Toshiaki Endo

发明人： Osamu Iwasaki ,  Takamitsu Okumura ,  Toshiaki Endo

IPC分类号： G01D11/28

CPC分类号： G02B6/0073 ,  G02B6/0068 ,  H01L33/58

摘要： The planar lighting device includes a light source having at least one LED chip for emitting blue light through a light emission face, a transparent light guide plate having at least one light entrance plane through which light emitted by the light source is admitted and a light exit plane through which the light admitted through the at least one light entrance plane is emitted as planar light, and a fluorescent member disposed between the light emission face and each of the at least one light entrance plane and having a fluorescent substance coated area for emitting white light by converting the blue light from the light source into the white light and blue light passing areas through which the blue light from the light source is allowed to pass as the blue light.

摘要翻译： 平面照明装置包括具有至少一个用于通过发光面发射蓝光的LED芯片的光源，具有至少一个光入射面的透明导光板，通过该光入射面允许由光源发射的光，以及光出射 通过所述至少一个光入射平面所允许的光作为平面光发射的平面，以及布置在所述发光面与所述至少一个光入射面中的每一个之间并具有用于发射白色的荧光物质涂覆区域的荧光部件 通过将来自光源的蓝光转换成允许来自光源的蓝色光通过的白色光和蓝色光通过区域作为蓝色光而通过光。

公开(公告)号：US20080137004A1

公开(公告)日：2008-06-12

申请号：US11883889

申请日：2006-02-07

申请人： Osamu Iwasaki ,  Motohiko Matsushita ,  Takamitsu Okumura ,  Toshiaki Endo

发明人： Osamu Iwasaki ,  Motohiko Matsushita ,  Takamitsu Okumura ,  Toshiaki Endo

IPC分类号： F21V13/04 ,  F21V8/00 ,  G02F1/13357

CPC分类号： G02B6/0021 ,  G02B6/0031 ,  G02B6/005 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0071 ,  G02F1/133611

摘要： A parallel groove of a light guide place for accommodating a light source has, in a perpendicular cross section, a shape composed of a pair of contour lines that approach each other toward a light emitting plane, cross at a peak, and has a part where an inclination angle to a line vertical to the light emitting plane changes, and the inclination angle at a base end side far from the peak is sharper than that at a tip end side close to the peak. Thus, uniform and high brightness light can be emitted.

摘要翻译： 用于容纳光源的光导位置的平行槽在垂直截面中具有由一对相对于发光平面彼此接近的等高线组成的形状，在峰处交叉，并且具有 与垂直于发光面的线的倾斜角度变化，远离峰值的基端侧的倾斜角度比接近峰值的前端侧的倾斜角度更尖锐。 因此，可以发出均匀和高亮度的光。

公开(公告)号：US20080198300A1

公开(公告)日：2008-08-21

申请号：US12035155

申请日：2008-02-21

申请人： Takamitsu Okumura ,  Osamu Iwasaki ,  Toshiaki Endo

发明人： Takamitsu Okumura ,  Osamu Iwasaki ,  Toshiaki Endo

IPC分类号： G02F1/1335

CPC分类号： G02B6/0023 ,  G02B6/0073

摘要： The liquid crystal display device with a simple configuration is capable of emitting light with a desired color temperature, achieving high light use efficiency, and displaying high quality images. The liquid crystal display device includes a planar lighting device and a liquid crystal display panel. The planar lighting device includes a light source having LED chips for emitting blue light, a transparent light guide plate having a light entrance plane admitting light emitted by the light source and a light exit plane emitting planar light, and a fluorescent member disposed between the light emission plane and the light entrance plane and having one or more fluorescent substance coated areas for emitting white light by converting blue light from the light source into white light and one or more blue light passing areas passing blue light as blue light. The liquid crystal display panel essentially includes red, green and blue filters.

摘要翻译： 具有简单结构的液晶显示装置能够发射具有所需色温的光，实现高的光利用效率和显示高质量的图像。 液晶显示装置包括平面照明装置和液晶显示面板。 平面照明装置包括具有用于发射蓝光的LED芯片的光源，具有允许由光源发射的光的光入射面的透明导光板和发射平面光的光出射面以及设置在光之间的荧光部件 发射平面和光入射面，并且具有通过将来自光源的蓝光转换成白光并且通过蓝光的一个或多个蓝光通过区域作为蓝光而具有用于发射白光的一个或多个荧光物质涂覆区域。 液晶显示面板基本上包括红色，绿色和蓝色滤光片。

公开(公告)号：US20080112153A1

公开(公告)日：2008-05-15

申请号：US11940702

申请日：2007-11-15

申请人： Osamu IWASAKI ,  Takamitsu Okumura ,  Toshiaki Endo

发明人： Osamu IWASAKI ,  Takamitsu Okumura ,  Toshiaki Endo

IPC分类号： F21V9/16

CPC分类号： G02B6/0073 ,  G02B6/0068 ,  H01L33/58

摘要： The planar lighting device includes a light source having at least one LED chip for emitting blue light through a light emission face, a transparent light guide plate having at least one light entrance plane through which light emitted by the light source is admitted and a light exit plane through which the light admitted through the at least one light entrance plane is emitted as planar light, and a fluorescent member disposed between the light emission face and each of the at least one light entrance plane and having a fluorescent substance coated area for emitting white light by converting the blue light from the light source into the white light and blue light passing areas through which the blue light from the light source is allowed to pass as the blue light.

摘要翻译： 平面照明装置包括具有至少一个用于通过发光面发射蓝光的LED芯片的光源，具有至少一个光入射面的透明导光板，通过该光入射面允许由光源发射的光，以及光出射 通过所述至少一个光入射平面所允许的光作为平面光发射的平面，以及布置在所述发光面与所述至少一个光入射面中的每一个之间并具有用于发射白色的荧光物质涂覆区域的荧光部件 通过将来自光源的蓝光转换成允许来自光源的蓝色光通过的白色光和蓝色光通过区域作为蓝色光而通过光。

公开(公告)号：US08210732B2

公开(公告)日：2012-07-03

申请号：US12305175

申请日：2007-06-13

申请人： Takamitsu Okumura ,  Toshiaki Endo

发明人： Takamitsu Okumura ,  Toshiaki Endo

IPC分类号： F21V7/04

CPC分类号： G02B5/0278 ,  G02B5/021 ,  G02B5/0242 ,  G02B5/0263 ,  G02B5/0268 ,  G02B5/045 ,  G02B6/0043 ,  G02B6/0053 ,  G02B6/0061 ,  G02B6/0068 ,  G02B6/0085

摘要： A light guide plate includes a light exit plane and a light entrance end, is formed into a shape having a thickness in a direction orthogonal to the light exit plane, the thickness being gradually larger as being farther from the light entrance end, and contains scattering particles dispersed therein, and a light guide plate assembly includes the light guide plate and a prism sheet which includes a plurality of prisms arrayed in parallel with each other, and is arranged so that vertex angles of the prisms face the light exit plane. The scattering particles scatter light entering from the light entrance end and propagating in the light guide plate, which satisfy Expressions (1) and (2) below, and vertex angles of the prisms of the prism satisfy Expression (3) and (4) below. 1.1≦ΦNPLGKC≦8.2  (1) 0.005≦KC≦0.1  (2) 55°≦θ≦80°  (3) 0°≦θ1≦15° and 30°≦θ2≦45°  (4)

摘要翻译： 导光板包括光出射面和光入射端，被形成为具有与光出射面正交的方向的厚度的形状，其厚度随着与光入射端的距离越来越大，并且含有散射 分散在其中的颗粒，以及导光板组件，其包括导光板和包括彼此平行排列的多个棱镜的棱镜片，并且被布置成使得棱镜的顶角面向光出射面。 散射粒子散射从光入射端入射的光并在导光板中传播，其满足下面的表达式（1）和（2），并且棱镜的顶角满足下面的表达式（3）和（4） 。 1.1＆nlE;ΦNPLGKC＆nlE; 8.2（1）0.005＆nlE; KC＆nlE; 0.1（2）55°＆nlE;＆Thetas;＆nlE; 80°（3）0°＆nlE;＆Thetas; 1＆nlE; 15°和30°＆ 45°（4）

公开(公告)号：US20090316072A1

公开(公告)日：2009-12-24

申请号：US12305175

申请日：2007-06-13

申请人： Takamitsu Okumura ,  Toshiaki Endo

发明人： Takamitsu Okumura ,  Toshiaki Endo

IPC分类号： G02F1/13357 ,  G02B5/02 ,  F21V5/02 ,  F21V8/00

CPC分类号： G02B5/0278 ,  G02B5/021 ,  G02B5/0242 ,  G02B5/0263 ,  G02B5/0268 ,  G02B5/045 ,  G02B6/0043 ,  G02B6/0053 ,  G02B6/0061 ,  G02B6/0068 ,  G02B6/0085

摘要： A light guide plate includes a light exit plane and a light entrance end, is formed into a shape having a thickness in a direction orthogonal to the light exit plane, the thickness being gradually larger as being farther-from the light entrance end, and contains scattering particles dispersed therein, and a light guide plate assembly includes the light guide plate and a prism sheet which includes a plurality of prisms arrayed in parallel with each other, and is arranged so that vertex angles of the prisms face the light exit plane. The scattering particles scatter light entering from the light entrance end and propagating in the light guide plate, which satisfy Expressions (1) and (2) below, and vertex angles of the prisms of the prism satisfy Expression (3) and (4) below. 1.1≦ΦNPLGKC≦8.2   (1) 0.005≦KC≦0.1   (2) 55°≦θ≦80°  (3) 0°≦θ1≦15° and 30°≦θ2≦45°  (4)

摘要翻译： 导光板包括光出射面和光入射端，形成为具有与光出射面正交的方向的厚度的形状，其厚度比光入射端更远，并且包含 分散在其中的散射颗粒，并且导光板组件包括导光板和包括彼此平行排列的多个棱镜的棱镜片，并且被布置成使得棱镜的顶角面向光出射面。 散射粒子散射从光入射端入射的光并在导光板中传播，其满足下面的表达式（1）和（2），并且棱镜的顶角满足下面的表达式（3）和（4） 。 1.1 <= PhiNPLGKC 0.005 55°<=θ0°<=θ1<= 15°和30°<=θ2

公开(公告)号：US07742155B2

公开(公告)日：2010-06-22

申请号：US11910323

申请日：2006-03-30

申请人： Takamitsu Okumura

发明人： Takamitsu Okumura

IPC分类号： G01N21/27 ,  G01M11/00 ,  G02B5/02

CPC分类号： G02B5/0242 ,  G01N21/31 ,  G01N21/47 ,  G01N2021/4707 ,  G02B5/02 ,  G02B27/0012

摘要： A diffusion material includes a prescribed scattering S(λ) of respective fine particles that are determined by Mie theory for all plural kinds of fine particles at a wavelength λ of an incident light. The diffusion material includes plural kinds of fine particles having different refractive indices, dispersed into a matrix. Each particle providing light intensity attenuating rate C(λ) in the diffusion material, and chromaticity variations Δx and Δy of the incident light. The diffusion power of the diffusion material by using determined chromaticity variations Δx and Δy; the diffusion material that is evaluated by this evaluation method and can emit illumination light free from wavelength unevenness. The diffusion material includes a blending the fine particles to provide the prescribed diffusion and uniform illumination.

摘要翻译： 扩散材料包括通过米氏理论对入射光的波长λ处的所有多种细颗粒确定的各个微粒的规定散射S（λ）。 扩散材料包括分散在基质中的具有不同折射率的多种微粒。 每个粒子在扩散材料中提供光强度衰减率C（λ），并且入射光的色度变化＆Dgr; x和＆Dgr; y。 通过使用确定的色度变化＆Dgr; x和＆Dgr; y，扩散材料的扩散功率; 通过该评价方法评价的扩散材料，能够发出不具有波长不均匀的照明光。 扩散材料包括混合细颗粒以提供规定的扩散和均匀照明。

公开(公告)号：US20090115998A1

公开(公告)日：2009-05-07

申请号：US11910323

申请日：2006-03-30

申请人： Takamitsu Okumura

发明人： Takamitsu Okumura

IPC分类号： G01N21/17

CPC分类号： G02B5/0242 ,  G01N21/31 ,  G01N21/47 ,  G01N2021/4707 ,  G02B5/02 ,  G02B27/0012

摘要： The method of evaluating a diffusion material that determines the total cross-sectional area of scattering Stotal (λ) inside the diffusion material as a total of cross-sectional areas of scattering S (λ) of respective fine particles that are determined by Mie theory for all of plural kinds of fine particles at a wavelength λ of a incident light to the diffusion material in which plural kinds of fine particles having different refractive indices are dispersed into a matrix, determines from this a light intensity attenuating rate C(λ) in the diffusion material, determines chromaticity variations Δx and Δy of the incident light to and emitted light from the diffusion material using this, and evaluates a diffusion power of the diffusion material by using determined chromaticity variations Δx and Δy; the diffusion material that is evaluated by this evaluation method and can emit illumination light free from wavelength unevenness; the method of blending the fine particles into the diffusion material for obtaining such the diffusion material and the method of producing the diffusion material are provided.

摘要翻译： 评估扩散材料的方法，其确定扩散材料内部的散射总量（λ）的总横截面面积，作为由Mie理论确定的各个细颗粒的散射的横截面积S（λ） 将具有不同折射率的多种微粒分散在基质中的扩散材料的入射光的波长λ的多种微细粒子确定为在其中的光强度衰减率C（λ） 扩散材料，使用这种方法确定入射光和来自扩散材料的光的色度变化Deltax和Deltay，并通过使用确定的色度变化Deltax和Deltay来评估扩散材料的扩散功率; 通过该评价方法评价的扩散材料，能够发出不具有波长不均匀的照明光; 提供将微粒混合到用于获得这种扩散材料的扩散材料中的方法和扩散材料的制造方法。

公开(公告)号：US07866872B2

公开(公告)日：2011-01-11

申请号：US12239603

申请日：2008-09-26

申请人： Takamitsu Okumura

发明人： Takamitsu Okumura

IPC分类号： F21V7/04

CPC分类号： G02B6/0041 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0056

摘要： The light guide plate includes a light exit plane, two light entrance planes, two symmetrical inclined rear planes increasingly distanced from the light exit plane from the two light entrance planes toward a center of the light exit plane, a curved portion joining the two inclined rear planes and scattering particles for scattering light travelling inside the light guide plate. The light guide plate satisfies given ranges set for a length between the two light entrance planes, a thickness of each of the two light entrance planes, a thickness at the center of the curved portion, a radius of curvature thereof, tapers of the inclined rear planes, and a particle diameter and a density of the scattering particles, and conditions that a light use efficiency be 55% or greater and that a middle-high ratio represented by the brightness distribution at the light exit plane be greater than 0% and not greater than 25%.

摘要翻译： 导光板包括光出射平面，两个光入射面，两个对称的倾斜后平面，从光出射平面离开两个光入射面朝向光出射平面的中心;弯曲部分，其将两个倾斜后部 平面和散射粒子，用于散射在导光板内行进的光。 导光板满足对于两个光入射面之间的长度设定的给定范围，两个光入射面中的每一个的厚度，弯曲部分的中心处的厚度，其曲率半径，倾斜后方的锥度 平面以及散射粒子的粒径和密度，光利用效率为55％以上的条件以及光出射面处的亮度分布所表示的中高比例大于0％ 大于25％。