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    • 31. 发明授权
    • Compensation films for LCD
    • LCD补偿膜
    • US06805924B1
    • 2004-10-19
    • US10413331
    • 2003-04-14
    • Tomohiro IshikawaXiang-Dong Mi
    • Tomohiro IshikawaXiang-Dong Mi
    • G02F11335
    • G02F1/133632G02F1/1396G02F2413/105Y10T428/10
    • An optical compensation film for Ordinary-mode Normally White Twisted Nematic Liquid Crystal Display comprising, a first and a second optically anisotropic layers containing positively birefringent material disposed on a substrate, wherein the optic axis of said first optically anisotropic layer tilts in a first plane with an average tilt angle between 10° and 60°, and the optic axis of said second optically anisotropic layer tilts in a second plane with an average tilt angle between 0° and 30°, and said average tilt angle of said first optically anisotropic layer and said average tilt angle of said second optically anisotropic layer are different, and said first and said second planes are perpendicular to the plane of said optical compensation film with the angle between said first and said second planes being 90±10°, and the retardation defined by (ne1−no1)d1 of said first optically anisotropic layer is between 60 nm and 220 nm and the retardation defined by (ne2−no2)d2 of the said second optically anisotropic layers is between 85 nm and 210 nm.
    • 一种用于普通模式普通白色扭转向列型液晶显示器的光学补偿膜,包括:第一和第二光学各向异性层,其包含设置在基板上的正双折射材料,其中所述第一光学各向异性层的光轴在第一平面中倾斜, 10°至60°之间的平均倾斜角,并且所述第二光学各向异性层的光轴在第二平面中倾斜,平均倾斜角为0°至30°,所述第一光学各向异性层的平均倾斜角和 所述第二光学各向异性层的所述平均倾斜角不同,并且所述第一和所述第二平面垂直于所述光学补偿膜的平面,所述第一和第二平面之间的角度为90±10°,并且所述延迟定义 所述第一光学各向异性层的(ne1-no1)d1在60nm和220nm之间,并且由(ne2-no2)d2定义的延迟 所述第二光学各向异性层在85nm和210nm之间。
    • 34. 发明授权
    • Backlight using surface-emitting light sources
    • US07229199B2
    • 2007-06-12
    • US11255909
    • 2005-10-21
    • Junwon LeeDavid KesslerXiang-Dong Mi
    • Junwon LeeDavid KesslerXiang-Dong Mi
    • F21V5/00
    • G02F1/133602G02F1/133603G02F1/133611G02F2001/133507G02F2001/133607
    • A lighting apparatus for providing illumination, comprising: a) an array of surface-emitting light sources, wherein each surface-emitting light source directs a source illumination beam, over a beam angle θ, toward an illumination plane; b) an array of beam spreading optical elements corresponding with the array of surface-emitting light sources, wherein refraction of the source illumination beam by each beam spreading optical element substantially satisfies a distribution function: dy / d ⁢ ⁢ θ = f ⁡ ( θ ) wherein y is a radial distance along the illumination plane from the optical axis of the beam-spreading optical element, dy is an arbitrarily small increment of the radial distance, dθ is the angular increment of the beam angle corresponding to dy, and ƒ(θ) is the distribution function for the angular distribution of the light source, such that each beam spreading optical element adjusts the luminous intensity of the source illumination beam from the corresponding surface-emitting light source to provide a uniformized illumination beam directed toward the illumination plane; and, c) an array of beam-divergence reducing lens elements, wherein each beam-divergence reducing lens element reduces the angular divergence of a corresponding uniformized illumination beam, providing illumination having improved uniformity and reduced beam divergence thereby.
    • 38. 发明申请
    • Brightness enhancement article
    • 亮度增强文章
    • US20050041311A1
    • 2005-02-24
    • US10642711
    • 2003-08-18
    • Xiang-Dong MiDavid KesslerJanet Donner
    • Xiang-Dong MiDavid KesslerJanet Donner
    • F21V8/00G02F1/13357F21V21/14
    • G02B6/0053G02F1/133615
    • A brightness enhancement article for conditioning luminance from a light source (18) in a viewing direction is provided. A prism surface side (44) collects light from the light providing surface (14), where, in one embodiment, the prism surface side (44) has a series of substantially parallel grooves (30) forming a series of longitudinal trapezoidal prism elements (38). Each trapezoidal prism element (38) has a face plane (46) disposed toward the light source (18) and first and second legs (34,36) extending back from said face plane (46), respectively, forming first and second base angles β with the face plane (46), where both first and second base angles β satisfy: 90 degrees
    • 提供了一种用于调节来自观察方向的光源(18)的亮度的亮度增强制品。 棱镜表面侧(44)收集来自光提供表面(14)的光,其中在一个实施例中,棱镜表面侧(44)具有一系列基本上平行的形成一系列纵向梯形棱镜元件的凹槽(30) 38)。 每个梯形棱镜元件(38)具有朝向光源(18)设置的面平面(46)以及从所述面平面(46)向后延伸的第一和第二腿部(34,36),分别形成第一和第二底角 β面与平面(46),其中第一和第二底角β都满足:90度<底角β<120度。
    • 40. 发明申请
    • BACKLIGHT USING SURFACE-EMITTING LIGHT SOURCES
    • 背光使用表面发光光源
    • US20070091613A1
    • 2007-04-26
    • US11255909
    • 2005-10-21
    • Junwon LeeDavid KesslerXiang-Dong Mi
    • Junwon LeeDavid KesslerXiang-Dong Mi
    • F21V13/00
    • G02F1/133602G02F1/133603G02F1/133611G02F2001/133507G02F2001/133607
    • A lighting apparatus for providing illumination, comprising: a) an array of surface-emitting light sources, wherein each surface-emitting light source directs a source illumination beam, over a beam angle θ, toward an illumination plane; b) an array of beam spreading optical elements corresponding with the array of surface-emitting light sources, wherein refraction of the source illumination beam by each beam spreading optical element substantially satisfies a distribution function: dy/dθ=ƒ(θ) wherein y is a radial distance along the illumination plane from the optical axis of the beam-spreading optical element, dy is an arbitrarily small increment of the radial distance, dθ is the angular increment of the beam angle corresponding to dy, and ƒ(θ) is the distribution function for the angular distribution of the light source, such that each beam spreading optical element adjusts the luminous intensity of the source illumination beam from the corresponding surface-emitting light source to provide a uniformized illumination beam directed toward the illumination plane; and, c) an array of beam-divergence reducing lens elements, wherein each beam-divergence reducing lens element reduces the angular divergence of a corresponding uniformized illumination beam, providing illumination having improved uniformity and reduced beam divergence thereby.
    • 一种用于提供照明的照明装置,包括:a)表面发射光源的阵列,其中每个表面发射光源将束照射光束在束角θ上朝向照明平面引导; b)与表面发射光源阵列相对应的光束扩展光学元件的阵列,其中由每个光束扩展光学元件的源照射光束的折射基本上满足分布函数:<?in-line-formula description =“In 线=公式“end =”lead“?> dy / dtheta = f(theta)<?in-line-formula description =”In-line Formulas“end =”tail“?>其中y是沿着照明的径向距离 平面从光束扩展光学元件的光轴,dy是径向距离的任意小的增量,dta是对应于dy的光束角的角增量,f(θ)是角分布的分布函数 使得每个光束扩展光学元件调节来自相应的表面发射光源的源照射光束的发光强度,以提供指向照明平面的均匀照明光束; 以及c)光束发散减少透镜元件的阵列,其中每个光束发散减小透镜元件减小对应的均匀照明光束的角度发散,从而提供具有改善的均匀性并且由此减小光束发散的照明。