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    • 23. 发明专利
    • Light guide plate for surface light source device, and backlight unit using the same
    • 用于表面光源装置的光导板和使用其的背光单元
    • JP2012119305A
    • 2012-06-21
    • JP2011206882
    • 2011-09-22
    • Toray Advanced Materials Korea Incトーレ アドバンスト マテリアルズ コリア インク.
    • KIM SANG PILHWANG CHANG IKLEE HEE CHEONGLEE SANG-HOONPARK JUN-SANGKIM KWANG-SOO
    • F21S2/00F21Y101/02F21Y103/00
    • G02B6/0061G02B5/0231G02B6/0036G02B6/0038G02F1/133615
    • PROBLEM TO BE SOLVED: To provide a light guide plate for a surface light source device not only with high front-surface brightness but also with excellent uniformity of brightness, and further, capable of restraining a moire phenomenon.SOLUTION: In the light guide plate for a surface light source device including an incident surface with light incident from lamps arranged along a predetermined axis, an emission surface emitting the incident light and a rear surface facing the emission surface, a plurality of unit cells each with a microprism pattern carved on the rear surface are dispersedly arranged, wherein a crossing angle of a prism arrangement axis formed by an edge line direction of the microprism pattern and an arrangement axis of the lamps makes up an alternate angle. Furthermore, the light guide plate for a surface light source device has not only high front-surface brightness but also has excellent uniformity of brightness, and that, no moire phenomena is caused. When this is used for a backlight unit, use of an optical sheet laminated on the light guide plate can be reduced, thinning and simplification of manufacturing processes of a liquid crystal display module can be achieved, and also manufacturing cost can be reduced.
    • 要解决的问题:为了提供一种用于表面光源装置的导光板,不仅具有高的前表面亮度,而且具有优异的亮度均匀性,并且还能够抑制莫尔条纹现象。 解决方案:在用于表面光源装置的导光板中,包括从沿着预定轴排列的灯入射的入射表面的入射表面,发射入射光的发射表面和面向发射表面的后表面, 分散配置有分别配置在后表面上雕刻有微棱镜图案的单元电池,其中由微棱镜图案的边缘线方向形成的棱镜排列轴线与灯的布置轴线的交叉角成为交替的角度。 此外,用于表面光源装置的导光板不仅具有高的前表面亮度,而且具有优异的亮度均匀性,并且不会产生莫尔纹现象。 当将其用于背光单元时,可以减少层叠在导光板上的光学片的使用,从而可以实现液晶显示模块的制造工艺的薄化和简化,并且还可以降低制造成本。 版权所有(C)2012,JPO&INPIT