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    • 4. 发明授权
    • Backlight unit and a liquid crystal display apparatus applying the same therein
    • 背光单元和应用于其中的液晶显示装置
    • US08115890B2
    • 2012-02-14
    • US12684877
    • 2010-01-08
    • Satoshi OuchiKoichi SakitaHajime InoueYoshiharu Yamashita
    • Satoshi OuchiKoichi SakitaHajime InoueYoshiharu Yamashita
    • G02F1/1335
    • G02B6/0068G02B6/0018G02B6/008G02F1/133615
    • A backlight unit, being thin-sized, but having high definition and high uniformity of luminance, and a video display apparatus applying the same therein, has a plural number of sets of at least one or more of light source(s) (1) and a light guidance plate (2) for guiding lights from the light source(s) to a side of a liquid crystal panel, to be emitted therefrom, wherein the light source(s) is/are disposed on one end side of the light guidance plate, and other set of light source is disposed on a rear surface side of the other end of the light guidance plate opposite to the one end. A gap or groove (4) is formed mutually between each of the light guidance plates in the plural number of sets, and if assuming that width of the gap or groove is “d”, distance between a light incident surface of the liquid crystal panel and a light emission surface of the light guidance plate, or distance between a light incident surface of an optical member disposed between the liquid crystal panel and the light guidance plate and a light emission surface of the light guidance plate is “h”, and further 2.0 mm>d≧0.1 mm and 10.0 mm>h≧0.4 mm, then the following condition is satisfied: 4≦h/d≦100.
    • 一种背光单元,其尺寸薄,但具有高清晰度和高均匀度的亮度,并且其中应用其的视频显示装置具有多个至少一个或多个光源(1)的组, 以及用于将来自所述光源的光引导到液晶面板的一侧的光引导板(2),从所述光引导板(2)发射,其中所述光源设置在所述光的一端侧 引导板和其他一组光源设置在与一端相对的导光板的另一端的后表面侧。 在多个组中的每个导光板之间形成有间隙或凹槽(4),如果假设间隙或凹槽的宽度为“d”,则液晶面板的光入射表面之间的距离 以及导光板的发光面,或者设置在液晶面板和导光板之间的光学构件的光入射面与导光板的发光面之间的距离为“h”,进一步 2.0mm>d≥0.1mm,10.0mm>h≥0.4mm,则满足以下条件:4≦̸ h / d≦̸ 100。
    • 5. 发明申请
    • Backlight Unit and a Liquid Crystal Display Apparatus Applying the Same Therein
    • 背光单元和液晶显示装置
    • US20100182541A1
    • 2010-07-22
    • US12684877
    • 2010-01-08
    • Satoshi OUCHIKoichi SakitaHajime InoueYoshiharu Yamashita
    • Satoshi OUCHIKoichi SakitaHajime InoueYoshiharu Yamashita
    • G02F1/13357G09F13/04
    • G02B6/0068G02B6/0018G02B6/008G02F1/133615
    • A backlight unit, being thin-sized, but having high definition and high uniformity of luminance, and a video display apparatus applying the same therein, has a plural number of sets of at least one or more of light source(s) (1) and a light guidance plate (2) for guiding lights from the light source(s) to a side of a liquid crystal panel, to be emitted therefrom, wherein the light source(s) is/are disposed on one end side of the light guidance plate, and other set of light source is disposed on a rear surface side of the other end of the light guidance plate opposite to the one end. A gap or groove (4) is formed mutually between each of the light guidance plates in the plural number of sets, and if assuming that width of the gap or groove is “d”, distance between a light incident surface of the liquid crystal panel and a light emission surface of the light guidance plate, or distance between a light incident surface of an optical member disposed between the liquid crystal panel and the light guidance plate and a light emission surface of the light guidance plate is “h”, and further 2.0 mm>d≧0.1 mm and 10.0 mm>h≧0.4 mm, then the following condition is satisfied: 4≦h/d≦100.
    • 一种背光单元,其尺寸薄,但具有高清晰度和高均匀度的亮度,并且其中应用其的视频显示装置具有多个至少一个或多个光源(1)的组, 以及用于将来自所述光源的光引导到液晶面板的一侧的光引导板(2),从所述光引导板(2)发射,其中所述光源设置在所述光的一端侧 引导板和其他一组光源设置在与一端相对的导光板的另一端的后表面侧。 在多个组中的每个导光板之间形成有间隙或凹槽(4),如果假设间隙或凹槽的宽度为“d”,则液晶面板的光入射表面之间的距离 以及导光板的发光面,或者设置在液晶面板和导光板之间的光学构件的光入射面与导光板的发光面之间的距离为“h”,进一步 2.0mm>d≥0.1mm,10.0mm>h≥0.4mm,则满足以下条件:4≦̸ h / d≦̸ 100。
    • 9. 发明授权
    • Backlight unit and liquid crystal display device using the same
    • 背光单元和使用其的液晶显示装置
    • US08111354B2
    • 2012-02-07
    • US12684875
    • 2010-01-08
    • Satoshi OuchiKoichi SakitaHajime InoueSeiji Murata
    • Satoshi OuchiKoichi SakitaHajime InoueSeiji Murata
    • G02F1/1333
    • G02B6/0038G02B6/0051G02B6/0061G02B6/008G02F2001/133601
    • A backlight unit having a LED light source includes a light guide plate partitioned in areas each having a tapered shape formed of a thick portion and a thin portion. The light guide plate is formed such that a thick portion and a thin portion are repeated at certain intervals, and the repeated thick portions and the repeated thin portions gradually decrease in thickness. The LED light source is attached to a lateral side of each thick portion. Grooves are formed in the light irradiation direction of the LED light source and in a direction perpendicularly intersecting the light irradiation direction. Each of the grooves is formed in an concave shape (V-shape or trapezoid-shape). There is a relation 0.2/30
    • 具有LED光源的背光单元包括在由厚壁部和薄壁部形成为锥形的区域分割的导光板。 导光板形成为以一定间隔重复厚壁部分和薄部分,并且重复的厚部分和重复的薄部分的厚度逐渐减小。 LED光源连接到每个厚部分的侧面。 在LED光源的光照射方向和与光照射方向垂直的方向上形成槽。 每个槽形成为凹形(V形或梯形)。 有0.2 / 30 <= W / D <0.1的关系,其中D表示导光板和光扩散板之间的距离,W表示每个槽的宽度。 倾斜角度和角度; 相对于每个凹槽的中心在9和15度之间。 因此,具有LED光源的背光单元可以利用提供理想的正面亮度分布的区域划分的导光板。