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    • 5. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US09104037B2
    • 2015-08-11
    • US13387194
    • 2010-03-18
    • Akira Sakai
    • Akira Sakai
    • G02F1/13363G02F1/1335G02F1/1337G02B27/28
    • G02B27/286G02F1/133502G02F1/133634G02F2001/133541G02F2001/133638G02F2001/133742G02F2001/133757G02F2413/02G02F2413/03G02F2413/08
    • The present invention provides a circularly polarizing VA mode liquid crystal display device having an excellent gray scale viewing angle from an intermediate gray scale to a high gray scale at an azimuth angle of 45°. The liquid crystal display device according to the present invention includes: a first polarizer; a first λ/4 plate; liquid crystal cell; a second λ/4 plate; and a second polarizer in this order, wherein when an azimuth of an absorption axis of the second polarizer is defined as 0°, an in-plane slow axis of the second λ/4 plate forms an angle of approximately 45°; an in-plane slow axis of the first λ/4 plate forms an angle of approximately 135°; the absorption axis of the first polarizer forms an angle of approximately 90°, and wherein a display brightness is varied by changing an alignment state of liquid crystal molecules in a liquid crystal layer from a state that the liquid crystal molecules are approximately vertically aligned to a substrate surface, to a state that the liquid crystal molecules are tilted to the substrate surface; and the liquid crystal layer has a domain in which the liquid crystal molecules are tilted in an azimuth angle range of 12.5° to 32.5°, a domain in which the liquid crystal molecules are tilted in an azimuth angle range of 102.5° to 122.5°, and a domain in which the liquid crystal molecules are tilted in an azimuth angle range of 192.5° to 212.5°, and a domain in which the liquid crystal molecules are tilted in an azimuth angle range of 282.5° to 302.5°.
    • 本发明提供一种圆偏振VA模式液晶显示装置,其具有从中间灰度到45度方位角的高灰度级的优异的灰度视角。 根据本发明的液晶显示装置包括:第一偏振器; 第一个λ/ 4板; 液晶电池; 第二个λ/ 4板; 和第二偏振器,其中当第二偏振器的吸收轴的方位角定义为0°时,第二λ/ 4板的面内慢轴形成大约45°的角度; 第一λ/ 4板的平面内慢轴形成约135°的角度; 第一偏振片的吸收轴形成大约90°的角度,其中通过从液晶分子近似垂直对准的状态改变液晶层中的液晶分子的取向状态来改变显示亮度 衬底表面,使得液晶分子倾斜到衬底表面的状态; 并且液晶层具有其中液晶分子在方位角范围为12.5°至32.5°的范围内倾斜的结构域,其中液晶分子在102.5°至122.5°的方位角范围内倾斜, 以及其中液晶分子在192.5°至212.5°的方位角范围内倾斜的域和液晶分子在282.5°至302.5°的方位角范围内倾斜的区域。
    • 7. 发明授权
    • Circularly polarizing plate and display device
    • 圆偏光板和显示装置
    • US08531765B2
    • 2013-09-10
    • US13129535
    • 2009-08-05
    • Akira SakaiKazuyoshi Sakuragi
    • Akira SakaiKazuyoshi Sakuragi
    • G02B5/30
    • G02B5/3083G02F1/133502G02F1/13363G02F2001/133562G02F2001/133635G02F2001/133638G02F2413/04G02F2413/08
    • The present invention provides at low cost a display device with superior visibility and high contrast ratio even in a bright room environment through a reduction in the undesired reflection, not only of the incident outside light from the normal direction, but also of the outside incident light from an oblique direction. The present invention is a circularly polarizing plate including a polarizer and a λ/4 plate, and the aforementioned circularly polarizing plate includes an anti-reflective layer, the aforementioned polarizer, a birefringent layer, and the aforementioned λ/4 plate which are laminated in this order, the NZ coefficient of the aforementioned birefringent layer satisfies NZ 0.9, and the in-plane slow axis of the aforementioned λ/4 plate intersects the absorption axis of the aforementioned polarizer.
    • 本发明以低成本提供即使在明亮的房间环境中也能够通过减少不正常反射而具有优异的可视性和高对比度的显示装置,而不仅仅是从正常方向入射的外部光,而且外部的入射光 从斜方向。 本发明是一种包括偏振片和λ/ 4板的圆偏振片,上述圆偏振片包括抗反射层,上述偏振片,双折射层和上述λ/ 4板, 该顺序,上述双折射层的NZ系数满足NZ <0.1,上述双折射层的面内快轴与上述偏振片的吸收轴正交,上述λ/ 4板的NZ系数满足NZ > 0.9,并且上述λ/ 4板的面内慢轴与上述偏振片的吸收轴相交。
    • 8. 发明申请
    • ACTIVE SHUTTER GLASSES AND A STEREOSCOPIC IMAGE PROJECTION SYSTEM
    • 主动快门玻璃和立体图像投影系统
    • US20130083261A1
    • 2013-04-04
    • US13640124
    • 2011-03-03
    • Takahiro NakaharaShun UekiKozo NakamuraAkira Sakai
    • Takahiro NakaharaShun UekiKozo NakamuraAkira Sakai
    • G02B27/26
    • G02B27/26G02B27/2264G03B35/26H04N13/341H04N2213/008
    • The present invention provides active shutter glasses including shutters in which orientations of their components are freely determined, and provides a stereoscopic image projection system. The present invention provides active shutter glasses for a stereoscopic image projection system, the active shutter glasses comprising: a right-eye shutter; and a left-eye shutter, wherein the right-eye shutter and the left-eye shutter each include a liquid crystal layer and a linear polarizing element, at least one of the right-eye shutter and the left-eye shutter includes a layer adopted to change a vibration direction of polarized light, the linear polarizing element is provided at the outer side of the liquid crystal layer, and the layer adapted to change a vibration direction of polarized light is provided at the outer side of the linear polarizing element.
    • 本发明提供了主动式快门眼镜,其包括快门,其中它们的部件的取向被自由地确定,并提供立体图像投影系统。 本发明提供了一种用于立体图像投影系统的主动快门眼镜,所述主动快门眼镜包括:右眼快门; 和左眼快门,其中右眼快门和左眼快门各自包括液晶层和线性偏振元件,右眼快门和左眼快门中的至少一个包括采用的层 为了改变偏振光的振动方向,在液晶层的外侧设置线偏振元件,在线偏振元件的外侧设置适合于改变偏振光的振动方向的层。
    • 10. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US08237899B2
    • 2012-08-07
    • US12864364
    • 2008-11-19
    • Akira SakaiMasahiro HasegawaIkuo Ninomiya
    • Akira SakaiMasahiro HasegawaIkuo Ninomiya
    • G02F1/1335
    • G02F1/133634G02F1/133371G02F1/133514G02F2413/12
    • The present invention provides a liquid crystal display device having a high contrast ratio and no coloring during black display, over a wide viewing angle range. The liquid crystal display device of the present invention includes a reverse wavelength dispersion-type biaxial retardation film having R0(B)/R0(G) and Rth(B)/Rth(G) not greater than 0.965 and R0(R)/R0(G) and Rth(R)/Rth(G) not smaller than 1.015; and a vertical alignment liquid crystal cell that has a blue, a green, and a red color filter layer and that satisfies Rth_LC(B)/Rth_LC(G)≦1.000 and Rth_LC(R)/Rth_LC(G)≧1.000. R0(B), R0(G) and R0(R) denote the in-plane retardations of the retardation film at wavelengths 450 nm, 550 nm and 650 nm. Rth(B), Rth(G) and Rth(R), and Rth_LC(B), Rth_LC(G) and Rth_LC(R) respectively denote the thickness-direction retardations of the retardation film and the liquid crystal cell at wavelengths 450 nm, 550 nm and 650 nm.
    • 本发明提供了一种液晶显示装置,在宽视角范围内具有高对比度和黑色显示期间的着色。 本发明的液晶显示装置包括R0(B)/ R0(G)和Rth(B)/ Rth(G)不大于0.965的反向波长色散型双轴延迟膜,R0(R)/ R0 (G)和Rth(R)/ Rth(G)不小于1.015; 和具有蓝色,绿色和红色滤色层的垂直取向液晶单元,其满足Rth_LC(B)/ Rth_LC(G)&nlE; 1.000和Rth_LC(R)/ Rth_LC(G)≥1000。 R0(B),R0(G)和R0(R)表示在450nm,550nm和650nm波长处的延迟膜的面内延迟。 Rth(B),Rth(G)和Rth(R)和Rth_LC(B),Rth_LC(G)和Rth_LC(R)分别表示相位差膜和液晶单元在450nm波长处的厚度方向延迟 ,550nm和650nm。