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    • 6. 发明申请
    • Optical compensation film, ellipsoidal polarizing plate, and liquid crystal display
    • 光学补偿膜,椭圆偏振片和液晶显示器
    • US20050285998A1
    • 2005-12-29
    • US11058314
    • 2005-02-16
    • Hirofumi SaitaMinoru Wada
    • Hirofumi SaitaMinoru Wada
    • G02B5/30G02F1/1335G02F1/13363
    • G02F1/133632G02B5/3016G02B5/3025G02F2413/105G02F2413/15
    • Novel optical compensation films are disclosed. One embodiment of the films is an optical compensation film wherein d satisfies the equation of d=−0.0115×Rth+3.0 d (μm) or is within the range of ±10% thereof, in which d (μm) is a thickness of the optically anisotropic layer and Rth (nm) is the retardation of only the transparent support in the thickness direction. Another embodiment of the films is an optical compensation film wherein a (deg.) and b (deg.) are within the ranges of 20≦a≦80 and 20≦b≦80, and satisfy the relation of − 5/9×a+45≦b≦− 5/9×a+110, in which a (deg.) is an average of tilt angles of the major axes (the discotic planes) of the discotic compound molecules at an interface between the optically anisotropic layer and the transparent support, and b (deg.) is an average of tilt angles of the major axes (the discotic planes) of the discotic compound molecules at an air interface on the side of a liquid crystal cell.
    • 公开了新的光学补偿膜。 膜的一个实施例是光学补偿膜,其中d满足d = -0.0115×Rth + 3.0d(mum)的等式或在±10%的范围内,其中d(mum)是光学的厚度 各向异性层和Rth(nm)仅是透明支撑体在厚度方向上的延迟。 膜的另一实施例是光学补偿膜,其中(度)和b(度)在20≤a≤80和20≤b≤80的范围内,并且满足关系-5 / 9xa + 45 <= b <= - 5 / 9xa + 110,其中(deg。)是光学各向异性之间的界面处的盘状化合物分子的长轴(盘状平面)的倾斜角的平均值 层和透明支撑体,b(度)是在液晶单元一侧的空气界面处的盘状化合物分子的长轴(盘状平面)的倾斜角度的平均值。
    • 8. 发明申请
    • Laminated phase retarder, polarizing member and liquid-crystal display device
    • 层压相位延迟器,偏振元件和液晶显示器件
    • US20030086033A1
    • 2003-05-08
    • US10265142
    • 2002-10-07
    • NITTO DENKO CORPORATION
    • Shinichi SasakiTakashi YamaokaNao MurakamiHiroyuki Yoshimi
    • G02F001/1335
    • G02F1/133634G02F1/13363G02F1/1393G02F2202/40G02F2413/02G02F2413/15
    • A laminated phase retarder having: a laminate of a retardation layer A made of a thermoplastic resin exhibiting positive birefringent characteristic and a retardation layer B constituted by an oriented solidified layer of cholesteric liquid crystal exhibiting a selective reflection wavelength range not larger than 350 nm; wherein Re of the laminate is not smaller than 10 nm and RthnullRe of the laminate is not smaller than 50 nm when Re and Rth are given by Renull(nxnullny)nulld and Rthnull(nxnullnz)nulld in which nx and ny are in-plane main refractive indices, nz is a thicknesswise refractive index, and d is a layer thickness. A polarizing member having: a laminate of a laminated phase retarder defined above; and a polarizer. A liquid-crystal display device having: a liquid-crystal cell; and a laminated phase retarder or a polarizing member defined above and disposed on at least one of opposite surfaces of the liquid-crystal cell.
    • 一种叠层相位延迟器,具有:由表现出正双折射特性的热塑性树脂制成的相位差层A和由350nm以下的选择性反射波长范围的胆甾型液晶的取向凝固层构成的相位差层B的叠层体; 其中当Re和Rth由Re =(nx-ny)xd和Rth =(nx-nz)xd给出时,层压体的Re不小于10nm,并且层叠体的Rth-Re不小于50nm,其中 nx和ny是面内主折射率,nz是厚度折射率,并且 d 是层厚度。 一种偏振构件,具有:上述层叠相位延迟器的层压体; 和偏振器。 一种液晶显示装置,具有:液晶单元; 以及上面限定的层叠相位延迟器或偏振元件,并设置在液晶单元的至少一个相对表面上。
    • 9. 发明授权
    • Normally white super twisted nematic display
    • 通常白色超扭曲向列显示
    • US06469760B1
    • 2002-10-22
    • US09715793
    • 2000-11-17
    • Martin Bosma
    • Martin Bosma
    • G02F11335
    • G02F1/1397G02F2413/15
    • The invention pertains to a normally white super twisted nematic (NW-STN) display comprising a super twisted nematic (STN) display cell and a compensation layer, characterized in that the compensation layer is a twisted liquid crystalline polymer and has an optical retardation (OR) which is 10 to 50% of the OR of the display cell in the off-state, and wherein the absolute value of the twist angle of the compensation layer is between 150° and 10° and is at least 90° smaller that the absolute value of the twist angle of the STN display cell. Preferably, the compensation layer of the NW-STN display is temperature matched with the STN display cell.
    • 本发明涉及包括超扭曲向列(STN)显示单元和补偿层的正常白色超扭曲向列(NW-STN)显示器,其特征在于,所述补偿层是扭曲的液晶聚合物并具有光学延迟(OR ),其为截止状态下显示单元的OR的10至50%,并且其中补偿层的扭曲角的绝对值为150°至10°,并且至少为90°,绝对值 STN显示单元的扭转角度值。 优选地,NW-STN显示器的补偿层与STN显示单元温度匹配。