会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 71. 发明专利
    • Projection optical system with fourier plane
    • 投影光学系统与傅立叶平面
    • JP2006235406A
    • 2006-09-07
    • JP2005052166
    • 2005-02-25
    • Tohoku Techno Brains CorpTohoku Univ国立大学法人東北大学株式会社東北テクノブレインズ
    • UCHIDA TATSUOKATAGIRI BAKUKAWAKAMI TORUKURATOMI YUHEI
    • G03B21/00G02B13/16G02B17/00
    • PROBLEM TO BE SOLVED: To provide a projection optical system with a Fourier plane, which can achieve a flat type projection display device which can make aberrations of an optical system small and has image display characteristics of high resolution and high definition. SOLUTION: In the projection optical system, an optical image emitted from an image display element 10 is Fourier-transformed by a first phase modulation element 1, and a Fourier spectrum appearing on a Fourier plane 30 by this transform is inversely Fourier-transformed by a second phase modulation element 2, and an image is enlarged and formed on a screen 20. Respective optical axes of the image display element and the first and second phase modulation elements are different from one another, and the optical axes of the first and second phase modulation elements and the normal of the screen face are approximately parallel with the optical axis of the image display element. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供具有傅立叶平面的投影光学系统,其能够实现能够使光学系统的像差小并具有高分辨率和高清晰度的图像显示特性的平面型投影显示装置。 解决方案:在投影光学系统中,从图像显示元件10发射的光学图像由第一相位调制元件1进行傅立叶变换,并且通过该变换在傅立叶平面30上出现的傅立叶频谱是反傅立叶变换, 由第二相位调制元件2变换,并且图像被放大并形成在屏幕20上。图像显示元件和第一和第二相位调制元件的各个光轴彼此不同,并且第一 第二相位调制元件和屏幕面的法线近似平行于图像显示元件的光轴。 版权所有(C)2006,JPO&NCIPI
    • 72. 发明专利
    • Screen using film having light emission direction conversion function and projection display system optical system
    • 屏幕使用薄膜方向转换功能和投影显示系统光学系统
    • JP2006171074A
    • 2006-06-29
    • JP2004359623
    • 2004-12-13
    • Tohoku Techno Brains CorpTohoku Univ国立大学法人東北大学株式会社東北テクノブレインズ
    • UCHIDA TATSUOKATAGIRI BAKUKAWAKAMI TORUISHINABE TAKAHIRO
    • G03B21/62G03B21/10
    • PROBLEM TO BE SOLVED: To realize a light emission direction conversion film which does not generate a ghost of an image or decrease in a contrast ratio due to a complicated interface, which has high emission direction conversion efficiency, and which has no limit in the emission direction conversion angle, and to provide a thin high-quality projection display using it as a screen. SOLUTION: In the screen 10 composed of a diffusion film 3 and the light emission direction conversion film 2 for emitting a light incident from an oblique direction to the right direction, the light emission direction conversion film has the structure such that a plurality of layers 1 having different refractive indexes between the adjacent layers and forming a plurality of waveguides of a step index type and/or a waveguide of a type having a refractive index distribution for exhibiting a light convergence function with respect to the thickness direction of the layers are arranged like stripes with respect to the in-plane direction of the film, and are curved and extended with respect to the thickness direction of the film. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了实现不会产生图像的重影或由于具有高发射方向转换效率的复杂的界面引起的对比度的降低的发光方向转换膜,并且没有限制 在发射方向转换角度,并提供使用其作为屏幕的薄的高质量投影显示。 解决方案:在由扩散膜3和发光方向转换膜2构成的屏幕10中,用于发射从向右方向倾斜的方向入射的光,发光方向转换膜具有这样的结构: 的层1在相邻层之间具有不同的折射率,并且形成多个阶跃折射率的波导和/或具有折射率分布的类型的波导,用于相对于层的厚度方向呈现会聚功能 相对于膜的面内方向排列成条状,并且相对于膜的厚度方向弯曲并延伸。 版权所有(C)2006,JPO&NCIPI
    • 73. 发明专利
    • Screen for rear projection display
    • 屏幕用于后期投影显示
    • JP2006011176A
    • 2006-01-12
    • JP2004190318
    • 2004-06-28
    • Tohoku Univ国立大学法人東北大学
    • UCHIDA TATSUOKATAGIRI BAKU
    • G03B21/62G02B5/04G03B21/00
    • PROBLEM TO BE SOLVED: To provide a screen for a rear projection display which is provided with simplicity of manufacturing, inexpensiveness of manufacturing cost and image display characteristics of high quality, and can realize a markedly thin shape.
      SOLUTION: The screen for the rear projection display consists of a diffusion film 2 for diffusing 60% and more of light, made incident at an optional angle in an incident permission angle area (α to β) into a diffusion angle area and a light-outgoing direction control element 1, and 70% and more of projector light whose outgoing direction is controlled by the light-outgoing direction control element 1 satisfies the condition of the outgoing angle θp from the light-outgoing direction control element 1, i.e. (180°-β)≤θp≤(180°-α).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供具有制造简单性,制造成本低廉和高质量图像显示特性的背投显示器的屏幕,并且可以实现明显薄的形状。 解决方案:后投影显示器的屏幕由用于扩散60%以上的光的漫射膜2构成,其在入射允许角度区域(α-β)中以可选角度入射到扩散角区域, 光出射方向控制元件1和出射方向由光射出方向控制元件1控制的投影光的70%以上满足来自光出射方向控制元件1的出射角θp的条件,即 (180°-β)≤θp≤(180°-α)。 版权所有(C)2006,JPO&NCIPI
    • 75. 发明专利
    • Rear projection display and screen for use for the same
    • 后投影显示屏和屏幕用于此
    • JP2013120199A
    • 2013-06-17
    • JP2011266487
    • 2011-12-06
    • Tohoku Univ国立大学法人東北大学
    • SUZUKI YOSHITOKAWAKAMI TORUUCHIDA TATSUO
    • G03B21/62G02B3/08G02B5/02G03B21/10
    • PROBLEM TO BE SOLVED: To contribute to energy-saving by providing a screen for a rear projection display, which has a narrow viewing angle, to eliminate the waste of energy due to providing a viewing angle wider than necessary.SOLUTION: A rear projection display 2a comprises a light source (projector) 4 which generates image light, and a screen 6a which is disposed ahead of the light source 4 (nearer to an observer) and receives the image light to focus the light substantially at positions of eyes (both eyes) 12 of the observer located ahead of the screen 6a. The screen 6a comprises a light source-side Fresnel lens 8 for deflecting the image light from the light source 4 into rays parallel with a normal direction of the screen and an observer-side Fresnel lens 10 for focusing the image light emitted from the lens 8, at the eyes 12 of the observer.
    • 要解决的问题:为了通过提供具有窄视角的背投显示器的屏幕来促进节能,以消除由于提供比所需的更宽的视角而引起的能量浪费。 解决方案:背投显示器2a包括产生图像光的光源(投影仪)4和布置在光源4之前(更靠近观察者)的屏幕6a,并接收图像光以聚焦 基本上位于屏幕6a前方的观察者的眼睛(双眼)12的位置。 屏幕6a包括用于将来自光源4的图像光偏转成与屏幕的法线方向平行的射线的光源侧菲涅耳透镜8和用于聚焦从透镜8发射的图像光的观察者侧菲涅耳透镜10 ,在观察者的眼睛12。 版权所有(C)2013,JPO&INPIT
    • 79. 发明专利
    • Liquid crystal panel and liquid crystal display device
    • 液晶面板和液晶显示装置
    • JP2010039222A
    • 2010-02-18
    • JP2008202350
    • 2008-08-05
    • Nitto Denko CorpTohoku Univ国立大学法人東北大学日東電工株式会社
    • UCHIDA TATSUOISHINABE TAKAHIROKAWAMOTO IKUROSHODA TAKASHIYOSHIMI HIROYUKI
    • G02F1/13363G02F1/1335
    • PROBLEM TO BE SOLVED: To provide a liquid crystal panel which can be applied to a large-sized liquid crystal display device, and to provide the liquid crystal display device using the liquid crystal panel. SOLUTION: The liquid crystal panel provided with a liquid crystal cell having a liquid crystal layer including liquid crystal molecules aligned in a homeotropic arrangement or a homogeneous arrangement when no electric field exists, a first polarizing plate disposed on one side of the liquid crystal cell, a second polarizing plate disposed on the other side of the liquid crystal cell and an optical rotation element converting linearly polarized light into linearly polarized light orthogonal thereto between the liquid crystal cell and the first polarizing plate or between the liquid crystal cell and the second polarizing plate. Absorption axes of the first and second polarizing plates are disposed to be parallel to each other in the liquid crystal panel. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供可应用于大型液晶显示装置的液晶面板,并提供使用液晶面板的液晶显示装置。 解决方案:提供具有液晶单元的液晶面板,液晶单元具有液晶层,该液晶层包括在没有电场的情况下以垂直排列排列或排列均匀的液晶分子;设置在液体一侧的第一偏振片 晶体单元,设置在液晶单元的另一侧的第二偏振片和将线性偏振光转换为与液晶单元和第一偏振板之间或与液晶单元和液晶单元之间的正交的直线偏振光的光旋转元件 第二偏振片。 第一和第二偏振片的吸收轴在液晶面板中彼此平行设置。 版权所有(C)2010,JPO&INPIT