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    • 3. 发明授权
    • Surface light source device and display device using same
    • 表面光源装置及其使用的显示装置
    • US07641376B2
    • 2010-01-05
    • US11561603
    • 2006-11-20
    • Seiji SakaiAkihiro Mori
    • Seiji SakaiAkihiro Mori
    • F21V7/04
    • G02B6/0055G02B6/0015
    • The present invention provides a surface light source device capable of reducing luminance non-uniformity near point light sources and near between the point light sources adjacent to each other, and a display device of high display quality. The surface light source device includes: a plurality of LEDs arranged at a predetermined spacing; a light guide plate that emits, as a surface light, light emitted from the point light sources and entered into at least one side surface, through a light emission surface perpendicular to a light incident surface; reflecting sheets disposed respectively on a light anti-emission surface and near the LEDs in the light guide plate; and a casing having an opening part at a location corresponding to the light emission surface of the light guide plate, and holding the LEDs and the light guide plate and the reflecting sheets. The surface light source device further includes, near between the LEDs adjacent to each other, light introducing means for introducing the light emitted from the LEDs into the light emission surface or the light anti-emission surface.
    • 本发明提供了一种能够减少靠近点光源的亮度不均匀性和彼此相邻的点光源附近的表面光源装置,以及显示质量高的显示装置。 表面光源装置包括:以预定间隔布置的多个LED; 从所述点光源发射并进入至少一个侧面的光作为表面光发射通过垂直于光入射面的发光面的导光板; 分别设置在光反射面和导光板的LED附近的反射片; 以及壳体,其在与导光板的发光面对应的位置处具有开口部,并且保持LED和导光板以及反射片。 表面光源装置还包括在彼此相邻的LED附近,用于将从LED发射的光引入发光表面或光抗发射表面的光引入装置。
    • 8. 发明授权
    • Planar light source device and display device using the same
    • 平面光源装置及其使用的显示装置
    • US07229198B2
    • 2007-06-12
    • US10560529
    • 2004-06-14
    • Seiji SakaiAkihiro MoriTakashi YamaguchiToshiyuki Yoneda
    • Seiji SakaiAkihiro MoriTakashi YamaguchiToshiyuki Yoneda
    • F21V33/00
    • G02B6/0051G02B6/0023G02B6/0031G02B6/0096G02F1/133615
    • To obtain a planar light source which is free from brightness variations or chromaticity variations by using a point light source having a high directivity for emitted light, and to provide a liquid crystal display device capable of obtaining superior display characteristics by using this planar light source device. A planar light source device having an opening in the upper surface comprises a hollow box, a diffusion plate disposed in the opening, a reflecting plate disposed on the bottom of the hollow region of the box, and a plurality of point light sources disposed in a row along at least one side surface of the box. This planar light sources device is characterized by including a refracting element disposed parallel to the row of point light sources and between the point light sources and the hollow region for refracting the light from the point light sources, whereby the light at an incident angle at which the brightness is greatest in the luminous intensity distribution of the light radiated to the irradiation subject surface of the refracting element is refracted to the bottom surface of the box by the refracting element.
    • 为了获得通过使用具有高发射光方向性的点光源而没有亮度变化或色度变化的平面光源,并且提供能够通过使用该平面光源装置获得优异的显示特性的液晶显示装置 。 在上表面具有开口的平面光源装置包括中空盒,设置在开口中的扩散板,设置在盒的中空区域的底部的反射板和设置在盒的中空区域中的多个点光源 沿着盒子的至少一个侧表面排列。 这种平面光源装置的特征在于包括平行于一列点光源并且在点光源和中空区域之间设置的折射元件,用于折射来自点光源的光,由此,入射角处的光以 通过折射元件将辐射到折射元件的照射对象表面的光的发光强度分布折射到盒的底面,亮度最大。
    • 9. 发明申请
    • Planar light source device and display device using the same
    • 平面光源装置及使用其的显示装置
    • US20060181901A1
    • 2006-08-17
    • US10560529
    • 2004-06-14
    • Seiji SakaiAkihiro MoriTakashi YamaguchiToshiyuki Yoneda
    • Seiji SakaiAkihiro MoriTakashi YamaguchiToshiyuki Yoneda
    • F21V7/04
    • G02B6/0051G02B6/0023G02B6/0031G02B6/0096G02F1/133615
    • To obtain a planar light source which is free from brightness variations or chromaticity variations by using a point light source having a high directivity for emitted light, and to provide a liquid crystal display device capable of obtaining superior display characteristics by using this planar light source device. A planar light source device having an opening in the upper surface comprises a hollow box, a diffusion plate disposed in the opening, a reflecting plate disposed on the bottom of the hollow region of the box, and a plurality of point light sources disposed in a row along at least one side surface of the box. This planar light sources device is characterized by including a refracting element disposed parallel to the row of point light sources and between the point light sources and the hollow region for refracting the light from the point light sources, whereby the light at an incident angle at which the brightness is greatest in the luminous intensity distribution of the light radiated to the irradiation subject surface of the refracting element is refracted to the bottom surface of the box by the refracting element.
    • 为了获得通过使用具有高发射光方向性的点光源而没有亮度变化或色度变化的平面光源,并且提供能够通过使用该平面光源装置获得优异的显示特性的液晶显示装置 。 在上表面具有开口的平面光源装置包括中空盒,设置在开口中的扩散板,设置在盒的中空区域的底部的反射板和设置在盒的中空区域中的多个点光源 沿着盒子的至少一个侧表面排列。 这种平面光源装置的特征在于包括平行于一列点光源并且在点光源和中空区域之间设置的折射元件,用于折射来自点光源的光,由此,入射角处的光以 通过折射元件将辐射到折射元件的照射对象表面的光的发光强度分布折射到盒的底面,亮度最大。