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    • 1. 发明授权
    • Optical film and liquid-crystal display device
    • 光学薄膜和液晶显示装置
    • US06917473B2
    • 2005-07-12
    • US10734224
    • 2003-12-15
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • G02F1/13363F21V8/00G02B5/04G02B6/00G02B13/20G02B5/02
    • G02B6/0061G02B5/045G02B6/0036G02B6/0038G02B6/0053
    • An optical film has a transparent film, an adhesive layer provided on one surface of the transparent film, the adhesive layer having a refractive index different by 0.1 or less from that of a layer of the one surface of the transparent film, and a repetitive prismatic structure provided on the other surface of the transparent film, the repetitive prismatic structure having optical path changing slopes aligned in a substantially constant direction at an inclination angle in a range of from 35 to 48 degrees with respect to a plane of the transparent film. Another optical film has a transparent film having an average in-plane retardation of not larger than 30 nm, an adhesive layer provided on one surface of the transparent film, the adhesive layer having a refractive index different by 0.12 or less from that of a layer of the one surface of the transparent film, and the repetitive prismatic structure provided on the other surface of the transparent film. Still another optical film has a transparent film having a refractive index of not lower than 1.49, a transparent adhesive layer provided on one surface of the transparent film, the transparent adhesive means having a refractive index of not lower than 1.49, and the repetitive prismatic structure provided on the other surface of the transparent film.
    • 光学膜具有透明膜,设置在透明膜的一个表面上的粘合层,粘合层的折射率与透明膜的一个表面的层的折射率不同于0.1或更小,并且重复棱镜 结构设置在透明膜的另一个表面上,重复的棱镜结构具有相对于透明膜的平面以35至48度的范围内的倾斜角在基本上恒定的方向上取向的光程改变斜面。 另一种光学膜具有平均面内相位差不大于30nm的透明膜,设置在透明膜的一个表面上的粘合层,粘合层的折射率与层的折射率不同于0.12以下 的透明膜的一个表面,以及设置在透明膜的另一个表面上的重复棱镜结构。 另一种光学膜具有折射率不低于1.49的透明膜,设置在透明膜的一个表面上的透明粘合剂层,折射率不低于1.49的透明粘合剂,以及重复的棱柱结构 设置在透明膜的另一个表面上。
    • 2. 发明授权
    • Optical path changing polarizer
    • 光路改变偏振器
    • US06882474B2
    • 2005-04-19
    • US09756792
    • 2001-01-10
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • F21V8/00G02B5/30G02B6/00G02F1/1335G02B27/28
    • G02B6/0056G02B5/3025G02B6/0036G02B6/0038G02B6/0061G02F1/133553
    • An optical path changing polarizer has a polarizer including a polarizing element and a transparent protective layer disposed on at least one side of the polarizing element, an adhesive layer disposed on one side surface of the polarizer, and a repetitive prismatic structure disposed on the other side of the polarizer. The repetitive prismatic structure includes optical path changing slopes aligned in a substantially constant direction so as to be inclined at an inclination angle of from 35 to 48 degrees with respect to a plane of the polarizer. Each of respective refractive indexes of the adhesive layer and a material for forming the optical path changing slopes is not lower than a refractive index of the polarizing element or the transparent protective layer. The adhesive layer has a refractive index different by 0.1 or less from a refractive index of a surface layer of the one side of the polarizer.
    • 光路改变偏振片具有偏振片,该偏振片包括设置在偏振元件的至少一侧的偏振元件和透明保护层,设置在偏振片的一个侧面上的粘合剂层和设置在偏振片的另一侧的重复棱镜结构 的偏振器。 重复棱镜结构包括沿基本上恒定的方向排列的光路改变斜面,以相对于偏振片的平面倾斜35至48度的倾斜角。 粘合剂层和用于形成光路改变斜面的材料的折射率各自不低于偏振元件或透明保护层的折射率。 粘合剂层的折射率与偏振片的一侧的表面层的折射率相差0.1以下。
    • 5. 发明授权
    • Optical film and liquid-crystal display device
    • US06747801B2
    • 2004-06-08
    • US09758165
    • 2001-01-12
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • Seiji UmemotoToshihiko AriyoshiTakao Suzuki
    • G02B1320
    • G02B6/0061G02B5/045G02B6/0036G02B6/0038G02B6/0053
    • An optical film has a transparent film, an adhesive layer provided on one surface of the transparent film, the adhesive layer having a refractive index different by 0.1 or less from that of a layer of the one surface of the transparent film, and a repetitive prismatic structure provided on the other surface of the transparent film, the repetitive prismatic structure having optical path changing slopes aligned in a substantially constant direction at an inclination angle in a range of from 35 to 48 degrees with respect to a plane of the transparent film. Another optical film has a transparent film having an average in-plane retardation of not larger than 30 nm, an adhesive layer provided on one surface of the transparent film, the adhesive layer having a refractive index different by 0.12 or less from that of a layer of the one surface of the transparent film, and the repetitive prismatic structure provided on the other surface of the transparent film. Still another optical film has a transparent film having a refractive index of not lower than 1.49, a transparent adhesive layer provided on one surface of the transparent film, the transparent adhesive means having a refractive index of not lower than 1.49, and the repetitive prismatic structure provided on the other surface of the transparent film.
    • 6. 发明授权
    • Light pipe, plate light source unit and reflection type liquid-crystal display device
    • 光管,平板光源单元和反射型液晶显示装置
    • US06742921B2
    • 2004-06-01
    • US09888530
    • 2001-06-26
    • Seiji UmemotoToshihiko AriyoshiTakao SuzukiShuuji Yano
    • Seiji UmemotoToshihiko AriyoshiTakao SuzukiShuuji Yano
    • G02F11335
    • G02B6/0038G02B6/0051G02B6/0056G02F2001/133616
    • A light pipe includes a plate-like member having light output means formed in its upper surface so that light incident on an incidence side surface of the plate-like member is exited from the lower surface of the plate-like member through the light output means, an adhesive layer having a refractive index lower than that of the plate-like member, and (i) an anti-reflection layer made of a circularly polarizer and bonded to a lower surface of the plate-like member through the adhesive layer or (ii) a light-diffusing layer having a surface of fine prismatic structures and bonded to a lower surface of the plate-like member through the adhesive layer. A plane light source unit includes at least one light source disposed on one side surface of the light pipe. A reflection type liquid-crystal display device includes the plane light source unit and a liquid-crystal cell including a reflection layer disposed on the light output side of the plane light source unit.
    • 光管包括具有形成在其上表面中的光输出装置的板状构件,使得入射到板状构件的入射侧表面的光通过光输出装置从板状构件的下表面离开 ,折射率低于板状构件的粘合剂层,以及(i)由圆偏振片制成的防反射层,通过粘合剂层粘合到板状构件的下表面或( ii)具有细棱柱结构的表面的光漫射层,并通过粘合剂层粘合到板状构件的下表面。 平面光源单元包括设置在光管的一个侧表面上的至少一个光源。 反射型液晶显示装置包括平面光源单元和包括设置在平面光源单元的光输出侧的反射层的液晶单元。
    • 7. 发明授权
    • Light pipe unit, plane light source unit and liquid-crystal display device
    • 光管单元,平面光源单元和液晶显示装置
    • US06366409B1
    • 2002-04-02
    • US09703652
    • 2000-11-02
    • Seiji UmemotoToshihiro AriyoshiTakao SuzukiHideo Abe
    • Seiji UmemotoToshihiro AriyoshiTakao SuzukiHideo Abe
    • G02B2710
    • G02B6/0018G02B6/0028G02B6/0033G02F1/133615Y10S385/901
    • In a light pipe unit, a surface light pipe includes at least upper and lower surfaces and connected side surfaces constituted by an incident side surface formed between the upper and lower surfaces and side surfaces adjacent to the incident side surface. A linear light pipe includes a light supply surface, and the surface light pipe is connected to the linear light pipe through the connected side surfaces and the light supply surface so that the linear light pipe converts incident light from a point light source into a linear light source and outputs the light of the linear light source through the light supply surface. The surface light pipe converts incident light from the linear light source into a plane light source. In another light pipe unit, a linear light pipe for converting incident light from a point light source into a linear light source, and a surface light pipe for converting incident light from the linear light source into a plane light source are provided. The linear light pipe and the surface light pipe are partially connected to each other. Further, a plane light source unit wherein a point light source is disposed on the linear light pipe of one of the above light pipe units and a liquid-crystal display device provided with the above-mentioned plane light source unit and a liquid crystal cell are provided.
    • 在光管单元中,表面光管至少包括上表面和下表面以及由形成在上表面和下表面之间的入射侧表面和与入射侧表面相邻的侧表面构成的连接侧表面。 线状光管包括光供给面,并且表面光管通过连接的侧面和供光面连接到线状光管,使得线状光管将来自点光源的入射光转换成线状光 通过光源表面输出并输出线状光源的光。 表面光管将来自线性光源的入射光转换成平面光源。 在另一个光管单元中,设置有用于将来自点光源的入射光转换为线性光源的线性光管,以及用于将来自线性光源的入射光转换为平面光源的表面光管。 线状光管和表面光管彼此部分连接。 此外,其中点光源设置在上述光管单元之一的直线光管上的平面光源单元和设置有上述平面光源单元和液晶单元的液晶显示装置, 提供。