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    • 1. 发明授权
    • Color liquid crystal display apparatus
    • 彩色液晶显示装置
    • US06229587B1
    • 2001-05-08
    • US09337129
    • 1999-06-21
    • Masao OzekiHaruki MoriEiji Shidoji
    • Masao OzekiHaruki MoriEiji Shidoji
    • G02F11335
    • G02F1/133634G02F1/13363G02F1/1397G02F2203/34G02F2413/01G02F2413/08
    • A color liquid crystal display device has a liquid crystal layer of nematic liquid crystal having positive dielectric anisotropy and including a chiral material, which is interposed between two substrates disposed substantially in parallel, each provided with a transparent electrode and an aligning layer. The twist angle of the liquid crystal layer of liquid crystal molecules determined by the aligning layer of each of the substrates is 160°-300°. A pair of polarizing plates disposed outside the liquid crystal layer. A driving circuit applies a driving voltage across the transparent electrodes. A birefringent plate is disposed between the liquid crystal layer and an upper polarizing plates and a product &Dgr;n1·d1 of a refractive index anisotropy &Dgr;n1 of the liquid crystal in the liquid crystal layer and a thickness d1 of the liquid crystal layer is 1.2 &mgr;m-2.5 &mgr;m. The birefringent plate is formed to have a relation of nx≧nz≧ny wherein nx and ny respectively represent a refractive index (nx>ny) in a film plane direction of the birefringent plate, and nz represents a refractive index in the thickness direction of the birefringent plate (except for a case of nx=nz=ny). The birefringent plate has the sum &Dgr;n2·d2 of the refractive index anisotropy between a slow axis (a direction of nx in the film plane) and a fast axis (a direction of ny in the film plane), and birefringence in the thickness direction is 1.2 &mgr;m-2.5 &mgr;m. At least three voltage values are selected to be applied across the transparent electrodes by multiplexing driving.
    • 彩色液晶显示装置具有具有正介电各向异性的向列型液晶的液晶层,并且包括手性材料,该手性材料插入在基本上平行设置的两个基板之间,每个设置有透明电极和对准层。 由每个基板的取向层确定的液晶分子的液晶层的扭转角为160°-300°。 设置在液晶层外侧的一对偏振片。 驱动电路在透明电极之间施加驱动电压。 在液晶层和液晶层的液晶层和液晶层的折射率各向异性DELTAn1的产物DELTAn1.d1之间设置双折射板,液晶层的厚度d1为1.2μm-2.5 妈妈 双折射板形成为具有nx> = nz> = ny的关系,其中nx和ny分别表示双折射板的膜平面方向上的折射率(nx> ny),并且nz表示厚度的折射率 双折射板的方向(nx = nz = ny的情况除外)。 双折射板具有慢轴(膜平面中nx的方向)与快轴(膜平面中的ny方向)之间的折射率各向异性的和DELTAn2.d2,厚度方向上的双折射为 1.2 mum-2.5 mum。 选择通过多路复用驱动在透明电极上施加至少三个电压值。
    • 2. 发明授权
    • Color liquid crystal display apparatus
    • 彩色液晶显示装置
    • US5986732A
    • 1999-11-16
    • US704770
    • 1996-09-23
    • Masao OzekiHaruki MoriEiji Shidoji
    • Masao OzekiHaruki MoriEiji Shidoji
    • G02F1/13363G02F1/139G02F1/1335G02F1/1333
    • G02F1/133634G02F1/13363G02F1/1397G02F2203/34G02F2413/01G02F2413/08
    • A color liquid crystal display device has a liquid crystal layer of nematic liquid crystal having positive dielectric anisotropy and including a chiral material, which is interposed between two substrates disposed substantially in parallel, each provided with a transparent electrode and an aligning layer. The twist angle of the liquid crystal layer of liquid crystal molecules determined by the aligning layer of each of the substrates is 160.degree.-300.degree.. A pair of polarizing plates are disposed outside the liquid crystal layer. A driving circuit applies a driving voltage across the transparent electrodes. A birefringent plate is disposed between the liquid crystal layer and an upper polarizing plate and the product .DELTA.n.sub.1 .multidot.d.sub.1 of the refractive index anisotropy .DELTA.n.sub.1 of the liquid crystal in the liquid crystal layer and the thickness d.sub.1 of the liquid crystal layer is 1.2 .mu.m-2.5 .mu.m. The birefringent plate is formed to have a relation of n.sub.X .gtoreq.n.sub.Z .gtoreq.n.sub.Y, wherein n.sub.X and n.sub.Y respectively represent the refractive index (n.sub.X .gtoreq.n.sub.Y) in a film plane direction of the birefringent plate, and n.sub.Z represents the refractive index in the thickness direction of the birefringent plate (except for a case of n.sub.X =n.sub.Z =n.sub.Y). The birefringent plate has the sum .DELTA.n.sub.2 .multidot.d.sub.2 of the refractive index anisotropy between a slow axis (a direction of n.sub.X in the film plane) and a fast axis (a direction of n.sub.Y in the film plane), and birefringence in the thickness direction is 1.2 .mu.m-2.5 .mu.m. At least three voltage values are selected to be applied across the transparent electrodes by multiplexing driving and development of a white color is effected by applying an OFF voltage.
    • PCT PCT / JP96 / 00101 Sec。 371日期1996年9月23日 102(e)1996年9月23日PCT PCT 1996年1月22日PCT公布。 公开号WO96 / 23244 日期:1996年8月1日彩色液晶显示装置具有具有正介电各向异性的向列型液晶的液晶层,并且包括手性材料,该手性材料介于两个基本上平行设置的基板之间,每个基板设置有透明电极和对准 层。 由各基板的取向层决定的液晶分子的液晶层的扭转角为160〜300度。 一对偏振片设置在液晶层的外侧。 驱动电路在透明电极之间施加驱动电压。 在液晶层和上偏振片之间设置双折射板,液晶层中的液晶的折射率各向异性DELTA n1的产物DELTA n1xd1和液晶层的厚度d1为1.2μm- 2.5亩 双折射板形成为具有nX> / = nZ> / = nY的关系,其中nX和nY分别表示双折射板的膜平面方向上的折射率(nX> / = nY),nZ表示 双折射板的厚度方向的折射率(nX = nZ = nY的情况除外)。 双折射板具有慢轴(膜平面中的nX的方向)与快轴(膜平面中的nY的方向)之间的折射率各向异性的和DELTA n2×d2,厚度方向的双折射为1.2 亩 - 2.5亩。 通过多路复用驱动选择至少三个电压值施加在透明电极上,并且通过施加OFF电压来实现白色显影。
    • 3. 发明授权
    • Reflection type color liquid crystal display apparatus
    • 反射式彩色液晶显示装置
    • US5953090A
    • 1999-09-14
    • US776592
    • 1997-02-06
    • Masao OzekiHaruki MoriEiji ShidojiToshihiko Suzuki
    • Masao OzekiHaruki MoriEiji ShidojiToshihiko Suzuki
    • G02F1/1335G02F1/13363G02F1/139G02F1/1347
    • G02F1/1397G02F1/133636G02F1/133553G02F2001/133531G02F2203/02G02F2203/34
    • A reflection type color liquid crystal display apparatus comprising a polarizing plate 1 having an absorbing axis 18, a birefringent plate 3, a liquid crystal layer 6 and a reflection layer 8 wherein the absorbing axis 18, a first orientation 14, a second orientation 15, a first optical anisotropic axis 16 and a second anisotropic axis 17 are set so as to form predetermined crossing angles .theta..sub.1, .theta..sub.2, .theta..sub.3, .theta..sub.4, and selected voltage values of at least three values are applied to the liquid crystal layer 6 from a multiplex driving circuit 10.Without using a color filter, a very bright chromatic color (white or black) is displayed at the time of an OFF waveform even in multiplex driving, and development of colors of very bright red, blue and green can be obtained with a selection voltage or an intermediate voltage between the selection voltage and a non-selection voltage.
    • PCT No.PCT / JP96 / 01556 Sec。 371日期1997年2月6日 102(e)日期1997年2月6日PCT提交1996年6月7日PCT公布。 公开号WO96 / 41232 日期:1996年12月19日一种反射型彩色液晶显示装置,包括具有吸收轴18的偏振片1,双折射板3,液晶层6和反射层8,其中吸收轴18,第一取向14, 第二取向15,第一光学各向异性轴16和第二各向异性轴17被设定为形成预定的交叉角θ1,θ2,θ3,θ4,并且至少三个值的选定电压值被施加到 来自多路驱动电路10的液晶层6.即使在多路驱动中,也不使用彩色滤光片,即使在OFF波形时也显示非常明亮的彩色(白色或黑色),并且显现非常亮的红色 可以在选择电压和非选择电压之间具有选择电压或中间电压来获得蓝色和绿色。
    • 7. 发明授权
    • Color liquid crystal display device
    • 彩色液晶显示装置
    • US06181309B2
    • 2001-01-30
    • US09065729
    • 1998-04-24
    • Haruki MoriMasao Ozeki
    • Haruki MoriMasao Ozeki
    • G09G336
    • G09G3/3622G02F1/1397
    • A reflective type STN color liquid crystal display device having polarizers a liquid crystal layer a birefringent plate, an absorbing axis of upper polarizer, an absorbing axis of lower polarizer. Also include is the direction of a long axis of a liquid crystal molecule at an upper side of the liquid crystal layer, the direction of a long axis of a liquid crystal molecule at a lower side, a slow axis of birefringent plate, scanning electrodes of an N number, and data electrodes. Further BR≦PN−2 is satisfied when PN=N0.5+1 and bias value BR=(Vr+Vc)/(Vc).
    • 具有偏振器的反射型STN彩色液晶显示装置,液晶层为双折射板,上偏振片的吸收轴,下偏振片的吸收轴。 还包括在液晶层上侧的液晶分子的长轴方向,下侧的液晶分子的长轴方向,双折射板的慢轴,扫描电极 N个数字和数据电极。 当PN = N0.5 + 1和偏置值BR =(Vr + Vc)/(Vc)时,满足BR <= PN-2。