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    • 1. 发明授权
    • Optical path unit and liquid crystal display device
    • 光路单元和液晶显示装置
    • US08508691B2
    • 2013-08-13
    • US13058211
    • 2009-08-10
    • Tomonori MiyamotoMotohiro YamaharaHiroyuki KumasawaAkiyoshi Kanemitsu
    • Tomonori MiyamotoMotohiro YamaharaHiroyuki KumasawaAkiyoshi Kanemitsu
    • G02F1/1335
    • G02F1/133606G02B6/0053G02F1/133504G02F2001/133607
    • An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit 2, two prism films 4a and 4b, a first polarizing plate 5, a liquid crystal cell 1 having a liquid crystal layer between a pair of substrates, and a second polarizing plate 6 are disposed in the sequence. The prism films 4a and 4b are provided with a plurality of linear prisms in parallel on a light incident surface, the linear prisms having a polygonal and tapered cross section and an endmost vertex angle of 90° to 110°. The first polarizing plate 5 and the second polarizing plate 6 are disposed such that transmission axes thereof have a crossed Nicols relationship. The prism film 4a is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the first polarizing plate 5, and the prism film 4b is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the second polarizing plate 6.
    • 提供光路单元和在正面方向上的亮度优异的液晶显示装置。 依次设置背光单元2,两个棱镜膜4a和4b,第一偏振板5,具有一对基板之间的液晶层的液晶单元1和第二偏振板6。 棱镜膜4a和4b在光入射表面上平行地设置有多个线状棱镜,所述线状棱镜具有多边形和锥形横截面,并且最终顶角为90°至110°。 第一偏振片5和第二偏振片6被布置成使得其透射轴具有正交尼科尔关系。 棱镜膜4a被设置成使得线状棱镜的脊线与第一偏振片5的透射轴基本平行,并且棱镜膜4b被设置成使得线性棱镜的棱线基本上平行 与第二偏振板6的透射轴相对。
    • 6. 发明申请
    • OPTICAL PATH UNIT AND LIQUID CRYSTAL DISPLAY DEVICE
    • 光学路径单元和液晶显示设备
    • US20110181810A1
    • 2011-07-28
    • US13058211
    • 2009-08-10
    • Tomonori MiyamotoMotohiro YamaharaHiroyuki KumasawaAkiyoshi Kanemitsu
    • Tomonori MiyamotoMotohiro YamaharaHiroyuki KumasawaAkiyoshi Kanemitsu
    • G02F1/1335
    • G02F1/133606G02B6/0053G02F1/133504G02F2001/133607
    • An optical path unit and a liquid crystal display device excellent in luminance in the front direction are provided. A backlight unit 2, two prism films 4a and 4b, a first polarizing plate 5, a liquid crystal cell 1 having a liquid crystal layer between a pair of substrates, and a second polarizing plate 6 are disposed in the sequence. The prism films 4a and 4b are provided with a plurality of linear prisms in parallel on a light incident surface, the linear prisms having a polygonal and tapered cross section and an endmost vertex angle of 90° to 110°. The first polarizing plate 5 and the second polarizing plate 6 are disposed such that transmission axes thereof have a crossed Nicols relationship. The prism film 4a is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the first polarizing plate 5, and the prism film 4b is disposed such that the ridge lines of the linear prisms are substantially in parallel with the transmission axis of the second polarizing plate 6.
    • 提供光路单元和在正面方向上的亮度优异的液晶显示装置。 依次设置背光单元2,两个棱镜膜4a和4b,第一偏振板5,具有一对基板之间的液晶层的液晶单元1和第二偏振板6。 棱镜膜4a和4b在光入射表面上平行地设置有多个线状棱镜,所述线状棱镜具有多边形和锥形横截面,并且最终顶角为90°至110°。 第一偏振片5和第二偏振片6被布置成使得其透射轴具有正交尼科尔关系。 棱镜膜4a被设置成使得线状棱镜的脊线与第一偏振片5的透射轴基本平行,并且棱镜膜4b被设置成使得线性棱镜的棱线基本上平行 与第二偏振板6的透射轴相对。