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    • 21. 发明授权
    • Compound semiconductor epitaxial wafer
    • 化合物半导体外延片
    • US6057592A
    • 2000-05-02
    • US101431
    • 1998-10-21
    • Masataka WatanabeTsuneyuki KaiseMasayuki ShinoharaMasahisa EndouTohru Takahashi
    • Masataka WatanabeTsuneyuki KaiseMasayuki ShinoharaMasahisa EndouTohru Takahashi
    • H01L21/20H01L21/203H01L21/205H01L33/30H01L29/167
    • H01L33/30H01L33/12
    • At the time of forming an alloy composition gradient layer 4 of gallium arsenide phosphide GaAs.sub.x P.sub.1-x having an arsenic alloy composition x changed in such a range as not to exceed a predetermined alloy composition a with an increase of a layer thickness d between a GaP layer 3 and a composition constant layer 5 of gallium arsenide phosphide GaAs.sub.a P.sub.1-a having the predetermined alloy composition a to be grown above the GaP layer; the alloy composition x is abruptly ascended as in composition ascending zones C11 to C13 with the ascended thickness d of an epitaxial layer and then descended as in crystal stabilizing zones S11 to S13 in such a range as not to cancel the previous ascent amount. One or more combinations of such ascent and descent in the alloy composition are repeated to form as distributed in the alloy composition gradient layer 4, and then the alloy composition x is ascended to the predetermined alloy composition a. Thereby there is obtained a compound semiconductor epitaxial wafer which can effectively eliminate stresses caused by lattice mismatching, can be made thinner with an excellent productivity, and can have a high luminance due to employment of a reflective layer.
    • PCT No.PCT / JP97 / 00050 Sec。 371日期:1998年10月21日 102(e)日期1998年10月21日PCT 1997年1月13日PCT PCT。 公开号WO97 / 25747 日期1997年7月17日在形成具有砷合金组成x的砷化镓磷化镓GaAs xP 1-x的合金组成梯度层4的时间在不超过预定合金组成a的范围内变化,层厚增加 在GaP层上方生长具有规定的合金组成a的GaP层3和砷化磷化镓GaAsaP1-a的组成恒定层5之间的d; 如同外延层的上升厚度d的组成上升区域C11至C13中的合金组成x突然上升,然后如在晶体稳定区域S11至S13中下降到不消除先前上升量的范围内。 重复合金组合物中这种上升和下降的一种或多种组合,以形成分布在合金组成梯度层4中,然后合金组合物x上升到预定的合金组成a。 由此,可以获得能有效消除由晶格失配引起的应力的化合物半导体外延晶片,能够以优异的生产率变薄,并且由于使用反射层而具有高的亮度。
    • 25. 发明授权
    • Area light source device and liquid crystal display device
    • 区域光源装置和液晶显示装置
    • US08427603B2
    • 2013-04-23
    • US13004537
    • 2011-01-11
    • Takako IshikawaYasuhiro TanoueMasayuki ShinoharaYoshihiro Ueno
    • Takako IshikawaYasuhiro TanoueMasayuki ShinoharaYoshihiro Ueno
    • G02F1/1335
    • G02B6/0018G02B6/0036G02B6/0038G02B6/0055G02F1/133615
    • An area light source device that is capable of evenly emitting light by reducing leakage in the vicinity of the light source, and enhancing the light emission luminance by exiting light of narrower directional characteristics. A light guide substrate includes a light introducing section and a light guide plate main body. Diffusion patterns are provided at the light exit surface of the light guide plate main body. A low refraction index layer is formed at the lower surface of the light guide plate main body, and a reflection layer is formed at the lower surface of the low refraction index layer. The point light source is positioned facing an end face of the light introducing section. A directivity conversion unit is arranged on the upper surface of the light introducing section. The directivity conversion unit is configured by radially arraying a directivity conversion pattern having a V groove shape.
    • 一种区域光源装置,其能够通过减少光源附近的泄漏来均匀地发光,并且通过退出较窄方向特性的光来增强发光亮度。 导光基板包括导光部和导光板主体。 在导光板主体的光出射面设置有扩散图案。 在导光板主体的下表面形成低折射率层,在低折射率层的下表面形成反射层。 点光源被定位成面对光导入部的端面。 方向性转换单元设置在光导入部的上表面。 方向性转换单元通过径向排列具有V沟槽形状的方向性转换图案来配置。
    • 30. 发明授权
    • Planar light source and image display
    • 平面光源和图像显示
    • US07503684B2
    • 2009-03-17
    • US10560208
    • 2004-06-11
    • Yoshihiro UenoMasayuki Shinohara
    • Yoshihiro UenoMasayuki Shinohara
    • F21V7/04
    • G02B6/0036G02B6/0018G02B6/0038G02B6/0061G02B6/0063G02F1/133615G02F2001/133342
    • A plane source of light (back light) of the type of emitting light from both surfaces featuring a good light utilization efficiency and without permitting the external light to transmit through a display device even when it is combined with display panels of the transmission type. Light is introduced from a point source of light into a light guide plate. Many deflecting patterns of a triangular shape in cross section are formed in a recessed manner in a surface (pattern surface) on the side opposite to a light-leaving surface of the light guide plate. A prism sheet forming a plurality of arcuate prisms is arranged on a position facing the pattern surface of the light guide plate. Light propagating through the light guide plate is totally reflected by the deflecting pattern and goes out from the light-leaving surface nearly perpendicularly thereto. Light propagating through the light guide plate transmits through the deflecting patterns, goes out aslant, and is bent by the prisms into a direction nearly perpendicular to the pattern surface as it transmits through the prism sheet.
    • 来自两面的发光类型的平面光源(背光)具有良好的光利用效率,并且即使当与传输类型的显示面板组合时也不允许外部光透过显示装置传输。 光从点光源引入导光板。 横截面中的三角形状的许多偏转图案以凹入的方式形成在与导光板的光出射表面相对的一侧的表面(图案表面)中。 形成多个弓形棱镜的棱镜片布置在与导光板的图案表面相对的位置上。 通过导光板传播的光被偏转图案完全反射,并且从近光垂直的出光表面出射。 通过导光板传播的光通过偏转图案透射出来,并被棱镜弯曲成几乎垂直于图案表面的方向,因为它透过棱镜片。