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1. 发明专利

JP2004069836A Screen for front projection display 有权
公开(公告)号：JP2004069836A
公开(公告)日：2004-03-04
申请号：JP2002226205
申请日：2002-08-02
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 内田龍男 , 株式会社東北テクノブレインズ
发明人： KATAGIRI BAKU , MIYASHITA TETSUYA , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G03B21/60 , G02B1/11 , G02B5/08 , H04N5/72 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To secure the high quality of a display picture even under the environment of brightness exceeding the high-quality picture display limit of a conventional screen.
SOLUTION: The screen 20 for the front projection display is provided with a reflection layer 1 having a reflection surface 1A bent in a saw-toothed state; a transparent smoothing layer 2 brought into close contact with the saw-toothed reflection surface of the reflection layer; a light control layer 3 brought into close contact with the surface on the counter reflection layer side of the smoothing layer to transmit the light while scattering it or while making it advance straight depending on the incident direction of the light; or furthermore an antireflection layer 4 brought into close contact with the surface on the counter smoothing layer side of the light control layer and restraining the reflection from the surface.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004037615A Liquid crystal display device 有权
公开(公告)号：JP2004037615A
公开(公告)日：2004-02-05
申请号：JP2002191928
申请日：2002-07-01
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 内田龍男 , 株式会社東北テクノブレインズ
发明人： KUBOKI TSUTOMU , MIYASHITA TETSUYA , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G02F1/139 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device in which the splay-bend transition of the liquid crystal layer takes place surely at a high speed at a regular driving voltage and it is less to be constrained on the constutional material or on the production process is added.
SOLUTION: The liquid crystal layer 2 has a first region 11 in which an orientation direction of a liquid crystal molecule 1 determined by alignment controllability of an alignment layer in contact therewith exists in a first direction 21, a second region 12 in which the orientation direction exists in a second direction 22 turning to the right with >0° and 0° and

3. 发明专利

JP2005274955A Optical system for rear projection display 审中-公开
标题翻译：用于后投影显示的光学系统
公开(公告)号：JP2005274955A
公开(公告)日：2005-10-06
申请号：JP2004087840
申请日：2004-03-24
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 龍男内田 , 株式会社東北テクノブレインズ
发明人： KATAGIRI BAKU , ISHINABE TAKAHIRO , UCHIDA TATSUO
IPC分类号： G02B27/18 , G02B27/28 , G03B21/00 , G03B21/10 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide an optical system for a rear projection display in which external light intruded into the optical system is not dispersed in the direction of an observer, a high contrast ratio is realized under a bright environment, and both of the high contrast ratio and high projector light using efficiency are attained under the bright environment.
SOLUTION: In the optical system for the rear projection display which comprises a screen, a reflector mirror 5 for projecting the reflected light of projector light to the rear surface of the screen, and a projector 4 for projecting the projector light to the reflector 5, the screen is made of a screen 10 of multilayer structure consisting of a polarizer 1, a diffusion layer 2 and a 1/4 wavelength plate 3.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于后投影显示器的光学系统，其中入射到光学系统中的外部光不沿观察者的方向分散，在明亮的环境下实现高对比度，并且两者在明亮的环境下实现高对比度和高投影光使用效率。解决方案：在用于包括屏幕的背投显示器的光学系统中，用于将投影仪光的反射光投射到屏幕的后表面的反射镜5和用于将投影仪光投射到屏幕的投影仪4 反射器5，屏幕由由偏振器1，扩散层2和1/4波片3组成的多层结构的屏幕10制成。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2008020929A Liquid crystal display 审中-公开
标题翻译：液晶显示器
公开(公告)号：JP2008020929A
公开(公告)日：2008-01-31
申请号：JP2007214030
申请日：2007-08-20
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 龍男内田 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , ISHINABE TAKAHIRO , MIYASHITA TETSUYA , SHIBAZAKI MINORU
IPC分类号： G02F1/13363 , G02B5/30
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display which has a simpler configuration by optimizing a compensation film and/or further a liquid crystal layer, wherein light leakage in a black display is extremely little and tone reversal is not caused over a large visual angle range. SOLUTION: Light leakage is almost eliminated by giving refractive indices A, B (for ordinary light and extraordinary light, respectively), thickness D j , tilt angle β j , and an azimuth Φ j to a compensation film 5 (the i-th sheet of N sheets) so that the sum of retardations with the corresponding virtually divided elements of the liquid crystal layer 2 (a minute liquid crystal layer 7 having uniform alignment (the j-th layer of N divisions)) is substantially zero. Further, tone reversal is eliminated by setting the average tilt angle α av of the liquid crystal layer 2 to be in a range of θ 0 av 0 , wherein θ 0 is a refraction angle at the designed maximum incident angle Θ i . COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过优化补偿膜和/或液晶层来提供具有更简单配置的液晶显示器，其中黑色显示器中的漏光极少，并且不会引起色调反转视角范围很大。
解决方案：通过给出折射率A，B（分别用于普通光和非常光），厚度D j ，倾斜角β j 几乎消除了漏光和方位角Φ j 到补偿膜5（第N页的N张片），使得延迟与液晶层2的相应虚拟分割元素的和（微分液体具有均匀取向的晶体层7（N分割的第j层）基本上为零。此外，通过将液晶层2的平均倾斜角α av 设定在θ <α av 的范围内来消除色调反转， SB> <90-θ 0 ，其中θ 0 是设计的最大入射角θ的折射角。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2003035820A Circularly polarizing plate and liquid crystal display using the same 有权
标题翻译：圆形极化板和使用其的液晶显示器
公开(公告)号：JP2003035820A
公开(公告)日：2003-02-07
申请号：JP2001223746
申请日：2001-07-25
申请人： Tohoku Techno Brains Corp , Tatsuo Uchida , 龍男内田 , 株式会社東北テクノブレインズ
发明人： UCHIDA TATSUO , ISHINABE TAKAHIRO
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a circularly polarizing plate with little dependence on an incident angle, and a liquid crystal display using the same. SOLUTION: The circularly polarizing plate 16 consists of a simple body or a laminated body of a biaxial optical retardation film and is constructed by placing a C type (consisting of a polarizer 1 and a biaxial optical retardation film 17 with 250-300 nm retardation in plane and 0.1-0.4 Nz superimposed perpendicular to each other) or P type (consisting of a polarizer 1 and a biaxial optical retardation film 18 with 250-300 nm retardation in plane and 0.6-1.1 Nz superimposed parallel to each other) wide viewing angle polarizing plate 15 opposite to the one surface side of a quarter-wave plate 14 with (1/4±3/40)×π retardation corresponding to 60 deg. incident angle on the optical retardation film layer side. Also the liquid crystal display is constructed by placing the circularly polarizing plates 16 opposite to the one side of a liquid crystal cell 19 or both sides of a liquid crystal cell 20 on the quarter-wave plate side.
摘要翻译：要解决的问题：提供一种与入射角几乎不相关的圆偏振板，以及使用其的液晶显示器。解决方案：圆偏振片16由双轴向光学延迟膜的简单体或层叠体构成，通过将C型（偏振片1和双相光学相位差膜17与250-300nm的相位差组成）平面和彼此垂直叠加的0.1-0.4Nz）或P型（由偏振器1和平面内具有250-300nm延迟的双轴光学延迟膜18和彼此平行重叠的0.6-1.1Nz组成）宽视角偏振片15与四分之一波片14的一个表面侧相对，具有对应于60度的（1/4±3/40）×π延迟。光学延迟膜层侧的入射角。此外，液晶显示器通过将圆偏振片16与液晶单元19的一侧相对或液晶单元20的两侧相对于四分之一波片侧而设置。

6. 发明专利

JP2005114647A Method and apparatus for measuring coefficient of viscosity of liquid crystal 有权
标题翻译：用于测量液晶粘度系数的方法和装置
公开(公告)号：JP2005114647A
公开(公告)日：2005-04-28
申请号：JP2003351688
申请日：2003-10-10
申请人： 21 Aomori Sangyo Sogo Shien Center , Tohoku Techno Brains Corp , Tatsuo Uchida , 龍男内田 , 株式会社東北テクノブレインズ , 財団法人21あおもり産業総合支援センター
发明人： MIYASHITA TETSUYA , UCHIDA TATSUO , ISHINABE TAKAHIRO
IPC分类号： C09K19/02 , G01N11/00 , G01N21/59 , G02F1/00
CPC分类号： G01N11/00 , C09K19/02 , G01N2011/0066 , G01N2011/0073 , G02F1/0072
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for measuring a coefficient of the viscosity of a liquid crystal which easily and accurately measure the rotational coefficient γ
1 of viscosity and coefficients η
1 , η
2 of shear viscosity of Miesowicz which dominates a response speed.
SOLUTION: In the method for measuring the coefficient of viscosity of the liquid crystal which determines the coefficient of viscosity by fitting an Ericksen-Leslie's theoretical value and an actual value of the response characteristics, an on-response characteristic of a liquid crystal cell 10 as a measured object having homogeneous alignment is measured and the rotational coefficient γ
1 of viscosity is determined from the result in a first step, and the off-response characteristic is measured and the shear coefficients η
1 , η
2 of shear viscosity of Miesowicz are determined from the result in a second step. A calculation in the first step uses general coefficients of viscosity other than γ
1 . A calculation in the second step uses γ
1 determined in the first step.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于测量液体的粘度系数的方法和装置，其容易且精确地测量粘度和系数η 1 > 1 ，主要是响应速度的Miesowicz的剪切粘度η 2 。解决方案：在通过拟合Ericksen-Leslie的理论值和响应特性的实际值来测定液晶粘度系数确定粘度系数的方法中，液晶的响应特性测量具有均匀取向的测量对象的单元10，并且从第一步骤的结果确定粘度的旋转系数γ 1 ，并测量偏离响应特性，并且剪切系数η< 从第二步骤的结果确定Miesowicz的剪切粘度的SB> 1 ，η 2 。第一步的计算使用除γ 1 以外的一般粘度系数。第二步中的计算使用在第一步骤中确定的γ 1 。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2007078854A Polarizing plate and liquid crystal display device 审中-公开
标题翻译：极化板和液晶显示装置
公开(公告)号：JP2007078854A
公开(公告)日：2007-03-29
申请号：JP2005264167
申请日：2005-09-12
申请人： Tohoku Techno Brains Corp , Tohoku 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
发明人： UCHIDA TATSUO , ISHINABE TAKAHIRO
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a polarizing plate which has a transparent protective film protecting a polarizer on a side facing a liquid crystal cell (LC) and can effectively compensate variation of optical characteristics of liquid crystal during oblique observation, and a liquid crystal display device which uses the same and has a wide view angle range of good visual inspection. SOLUTION: Disclosed are: the polarizing plate such that the transparent protective film on the one surface side is a uniaxial phase difference film which has birefringence characteristics generating an in-plane phase difference in a (x, y) direction as a main axis and meets a condition of ny=nz, where nx and ny (nx>ny) are main refractive indexes in an x-y plane and nz is a refractive index in a thickness direction, and a slow axis of the unixial phase difference film is almost in parallel relation with an absorption axis of the polarizer; and the liquid crystal device using the same. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决方案：提供一种具有透明保护膜的偏振片，其在面向液晶单元（LC）的一侧保护偏振片，并且可以有效地补偿倾斜观察期间液晶的光学特性的变化，并且液晶显示装置使用相同并且具有良好视觉检查的宽视角范围。解决方案：公开了一种偏振板，使得一个表面侧的透明保护膜是单轴相位差膜，其具有在（x，y）方向上产生作为主要的（x，y）方向的面内相位差的双折射特性并且满足ny = nz的条件，其中nx和ny（nx> ny）是xy平面中的主折射率，nz是厚度方向上的折射率，并且单相相位差膜的慢轴几乎是与偏振器的吸收轴平行; 和使用其的液晶装置。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006084563A Screen for projection display 有权
标题翻译：投影显示画面
公开(公告)号：JP2006084563A
公开(公告)日：2006-03-30
申请号：JP2004267170
申请日：2004-09-14
申请人： Tohoku Techno Brains Corp , Tohoku 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
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , ISHINABE TAKAHIRO
IPC分类号： G02B5/02 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To realize a diffusion film, of which the intensity distribution characteristic of diffused light is arbitrarily controllable and of which the diffusion angle area does not change to incident light from a specified angle area, and to provide a high-quality projection display system that uses the diffusion film as a screen.
SOLUTION: The screen for the projection display is composed of the diffusion film, having a structure where a plurality of layers 1
1 and 1
2 forming a plurality of step index type optical waveguides, while keeping different refractive indexes between the adjacent layers form stripes being arranged in one direction on a film surface and are extended in the direction of a layer tilting angle distributed in almost top hat shape within a predetermined angle range with respect to the film thickness direction, or structure where a plurality of layers 2
1 forming optical waveguides, while keeping refractive index distribution exhibiting light-condensing ability in the layer thickness direction at a part in the film thickness direction are extended in the film thickness direction or in a direction tilted from the film thickness direction with layer length distributed in almost top hat shape within the predetermined range, or a structure obtained by combining the above structure.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现扩散光的强度分布特性是任意可控的并且漫射角度面积不会对来自特定角度区域的入射光改变，并且提供高的扩散膜使用扩散膜作为屏幕的质量投影显示系统。＆lt; P＆gt;解决方案：用于投影显示的屏幕由扩散膜组成，具有多个层1 1 和1 2 的结构，形成多个步骤在相邻层之间保持不同折射率的折射率型光波导形成在膜表面上沿一个方向布置的条纹，并且在相对于相对于第一层的光学波导的预定角度范围内以几乎顶帽形状分布的层倾斜角度的方向延伸在形成光波导的多个层2 1 的膜厚度方向或结构上，同时保持在膜厚度方向的一部分处具有在层厚度方向上呈现聚光能力的折射率分布在膜厚度方向上或沿着膜厚度方向倾斜的方向，层厚分布在预定范围内的几何顶帽形状，或通过组合上述结构而获得的结构结构体。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006171074A Screen using film having light emission direction conversion function and projection display system optical system 有权
标题翻译：屏幕使用薄膜方向转换功能和投影显示系统光学系统
公开(公告)号：JP2006171074A
公开(公告)日：2006-06-29
申请号：JP2004359623
申请日：2004-12-13
申请人： Tohoku Techno Brains Corp , Tohoku 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
发明人： UCHIDA TATSUO , KATAGIRI BAKU , KAWAKAMI TORU , ISHINABE TAKAHIRO
IPC分类号： G03B21/62 , G03B21/10
摘要： 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
摘要翻译：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

10. 发明公开

EP1672350A4 MEASRUING METHOD AND DEVICE FOR LIQUID CRYSTAL VISCOSITYCOEFFICIENT 审中-公开
标题翻译：测量方法和设备技术液体粘滞系数
公开(公告)号：EP1672350A4
公开(公告)日：2008-07-02
申请号：EP04792038
申请日：2004-10-05
申请人： UCHIDA TATSUO , TOHOKU TECHNO BRAINS CORP , AOMORI SUPPORT CT FOR IND PROM
发明人： UCHIDA TATSUO , MIYASHITA TETSUYA , ISHINABE TAKAHIRO
IPC分类号： G01N11/00 , C09K19/02 , G01N21/59 , G02F1/00
CPC分类号： G01N11/00 , C09K19/02 , G01N2011/0066 , G01N2011/0073 , G02F1/0072
摘要： [PROBLEMS] A method and a device for measuring liquid crystal viscosity coefficient capable of easily measuring with high accuracy response speed-governing rotating viscosity coefficient gamma1 and Miesowicz's shear viscosity coefficients eta1 and eta2. [MEANS FOR SOLVING PROBLEMS] A method of measuring liquid crystal viscosity coefficients for determining the values of viscosity coefficients by the fitting between the Erichsen-Lesly theoretical value and the actually measured value of response characteristics, wherein a homogeneous-orientation liquid crystal cell (10) is selected as an object of measuring, on-response characteristics are measured as a first step to determine the value of rotating viscosity coefficientgamma1 from the measured result, and then off-response characteristics are measured as a second step to determine the values of Miesowicz's shear viscosity coefficients eta1 and eta2 from the measured result. General values are used for viscosity coefficients other than gamma1 in the first step calculation, and values determined in the first step are used for gamma1 in the second step calculation.

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