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    • 1. 发明申请
    • Liquid crystal display apparatus
    • 液晶显示装置
    • US20050174317A1
    • 2005-08-11
    • US10865217
    • 2004-06-10
    • Tomoo IzumiMitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi Furukawa
    • Tomoo IzumiMitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi Furukawa
    • G02F1/137G02F1/133G09G3/20G09G3/36
    • G09G3/3629G02F1/13718G09G2300/0486G09G2310/06G09G2320/02
    • A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and aligning layers are formed. The liquid crystal switches between a planar alignment state and a focal-conic alignment state depending on the voltage applied thereto through the electrodes. In a planar state, light reflected by the electrodes is absorbed by the circular polarizer, and a black display is made. In a focal-conic state, light reflected by the electrodes passes through the circular polarizer, and a white display is made. The liquid crystal is driven by a chain of voltage pulses including a reset step of resetting the liquid crystal to a homeotropic state, a selection step of selecting the alignment state of the liquid crystal under zero-volt application and an evolution step of causing the liquid crystal to evolve to the selected alignment state.
    • 具有圆偏振器和液晶显示器的液晶显示装置。 液晶显示器在基板之间具有小瓶向列型液晶层,并且在基板的相互相对的两侧形成电极和对准层。 液晶根据通过电极施加到其上的电压在平面取向状态和聚焦圆锥取向状态之间切换。 在平面状态下,由圆偏振器吸收由电极反射的光,并进行黑色显示。 在焦圆锥状态中,由电极反射的光通过圆偏振器,并进行白色显示。 液晶由一系列电压脉冲驱动,包括将液晶复位为垂直状态的复位步骤,在零伏应用下选择液晶的取向状态的选择步骤和使液体 晶体演化为选定的对准状态。
    • 2. 发明授权
    • Liquid crystal display apparatus
    • 液晶显示装置
    • US07274348B2
    • 2007-09-25
    • US10865217
    • 2004-06-10
    • Tomoo IzumiMitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi Furukawa
    • Tomoo IzumiMitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi Furukawa
    • G09G3/36
    • G09G3/3629G02F1/13718G09G2300/0486G09G2310/06G09G2320/02
    • A liquid crystal display apparatus which have a circular polarizer and a liquid crystal display in a stack. The liquid crystal display has a chilral nematic liquid crystal layer between substrates, and on the mutually opposite sides of the substrates, electrodes and aligning layers are formed. The liquid crystal switches between a planar alignment state and a focal-conic alignment state depending on the voltage applied thereto through the electrodes. In a planar state, light reflected by the electrodes is absorbed by the circular polarizer, and a black display is made. In a focal-conic state, light reflected by the electrodes passes through the circular polarizer, and a white display is made. The liquid crystal is driven by a chain of voltage pulses including a reset step of resetting the liquid crystal to a homeotropic state, a selection step of selecting the alignment state of the liquid crystal under zero-volt application and an evolution step of causing the liquid crystal to evolve to the selected alignment state.
    • 具有圆偏振器和液晶显示器的液晶显示装置。 液晶显示器在基板之间具有小瓶向列型液晶层,并且在基板的相互相对的两侧形成电极和对准层。 液晶根据通过电极施加到其上的电压在平面取向状态和聚焦圆锥取向状态之间切换。 在平面状态下,由圆偏振器吸收由电极反射的光,并进行黑色显示。 在焦圆锥状态中,由电极反射的光通过圆偏振器,并进行白色显示。 液晶由一系列电压脉冲驱动,包括将液晶复位为垂直状态的复位步骤,在零伏应用下选择液晶的取向状态的选择步骤和使液体 晶体演化为选定的对准状态。
    • 3. 发明申请
    • Liquid crystal display
    • 液晶显示器
    • US20050140864A1
    • 2005-06-30
    • US11018981
    • 2004-12-21
    • Mitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi FurukawaTomoo Izumi
    • Mitsuyoshi MiyaiJun YamadaMasakazu OkadaKeiichi FurukawaTomoo Izumi
    • C09K19/02G02F1/1335G02F1/137
    • G02F1/133504G02F1/13718G02F2001/133541G02F2203/02
    • A liquid crystal display apparatus having a circular polarizer (composed of a linear polarizer and a retardation film), a scattering layer and a liquid crystal display which are stacked one upon another. The liquid crystal display has a chiral nematic liquid crystal layer between substrates, and electrodes and aligning layers are provided on mutually opposite surfaces of the substrates. The chiral nematic liquid crystal changes between a planar state and a focal-conic state in accordance with a voltage applied thereto through the electrodes. When the liquid crystal is in a planar state, light reflected by the electrode formed on the substrate located farther from an observing side is absorbed in the circular polarizer, and a black display is made. When the liquid crystal is in a focal-conic state, light reflected by the electrode formed on the substrate located farther from the observing side passes through the circular polarizer, and a white display is made. In this moment, the light reflected by the electrode is scattered by a scattering layer, and the directivity of the reflected light is weakened.
    • 具有彼此层叠的圆偏振器(由线偏振器和延迟膜构成),散射层和液晶显示器的液晶显示装置。 液晶显示器在基板之间具有手性向列型液晶层,并且电极和对准层设置在基板的彼此相对的表面上。 根据通过电极施加到其上的电压,手征向列液晶在平面状态和焦点锥形状态之间变化。 当液晶处于平面状态时,形成在远离观察侧的基板上形成的电极的光被圆偏振器吸收,并进行黑色显示。 当液晶处于焦锥状态时,由形​​成在远离观察侧的基板上形成的电极反射的光通过圆偏振片,并进行白色显示。 此时,由电极反射的光被散射层散射,反射光的方向性变弱。
    • 4. 发明授权
    • Liquid crystal display element with different ratios of polydomain and monodomain states
    • 具有不同比例的多畴和单畴状态的液晶显示元件
    • US06809788B2
    • 2004-10-26
    • US09896873
    • 2001-06-29
    • Jun YamadaMasakazu OkadaKiyofumi HashimotoMitsuyoshi Miyai
    • Jun YamadaMasakazu OkadaKiyofumi HashimotoMitsuyoshi Miyai
    • G02F11337
    • G02F1/1347G02F1/133707G02F1/133753G02F1/13718G02F2001/133757
    • A liquid crystal light modulation element includes a liquid crystal layer between first and second substrates. The liquid crystal layer includes a liquid crystal material exhibiting a cholesteric phase having a peak selective reflection wavelength in a visible wavelength range. When the liquid crystal layer is in the selective reflection state, it has pixel regions near the first and second substrates. The liquid crystal domains in the pixel regions near the first substrate are in a mixed state of polydomain and monodomain states. The liquid crystal domains in the pixel regions near the first substrate have a first ratio between the liquid crystal domains taking the polydomain and monodomain states. The liquid crystal domains in the pixel regions near the second substrate have a second ratio between the liquid crystal domains taking the polydomain and monodomain states. The first ratio is different from the second ratio.
    • 液晶光调制元件包括在第一和第二基板之间的液晶层。 液晶层包括具有在可见波长范围内的峰值选择反射波长的胆甾醇相的液晶材料。 当液晶层处于选择反射状态时,其具有靠近第一和第二基板的像素区域。 第一基板附近的像素区域中的液晶畴处于多晶畴和单畴状态的混合状态。 在第一衬底附近的像素区域中的液晶畴具有采用多晶畴和单畴状态的液晶畴之间的第一比率。 在第二衬底附近的像素区域中的液晶畴具有采用多晶畴和单畴状态的液晶畴之间的第二比率。 第一比例与第二比例不同。
    • 8. 发明授权
    • Liquid crystal display apparatus exhibiting cholesteric phase
    • 显示胆甾醇相的液晶显示装置
    • US06894733B2
    • 2005-05-17
    • US10275020
    • 2002-02-27
    • Tomoo IzumiMitsuyoshi Miyai
    • Tomoo IzumiMitsuyoshi Miyai
    • G02F1/139G02F1/133G02F1/1343G02F1/137
    • G02F1/13718G02F1/134363G02F2001/134381
    • A liquid crystal display apparatus which has: a liquid crystal display which has chiral nematic liquid crystal between a pair of substrates with electrodes thereon and which makes a display by use of selective reflection of the liquid crystal; and a driving circuit for driving the liquid crystal by applying voltages to the electrodes. When an electric field of a specified strength is applied to the chiral nematic liquid crystal, the liquid crystal changes the direction of the helical axis without untwisting. By using this characteristic, the direction of the helical axis of the liquid crystal is changed by changing the direction of the electric field applied thereto, and thereby, the liquid crystal is set to a planar state or a focal-conic state. In this way, writing on the liquid crystal is carried out.
    • 一种液晶显示装置,其具有:在具有电极的一对基板之间具有手征向列型液晶的液晶显示器,并且通过使用液晶的选择反射进行显示; 以及通过向电极施加电压来驱动液晶的驱动电路。 当具有规定强度的电场施加到手性向列液晶时,液晶改变螺旋轴的方向而不退捻。 通过使用该特性,通过改变施加到其上的电场的方向来改变液晶的螺旋轴的方向,从而将液晶设置为平面状态或焦点锥形状态。 以这种方式,对液晶进行写入。
    • 9. 发明申请
    • Liquid crystal display
    • 液晶显示器
    • US20060197728A1
    • 2006-09-07
    • US11359922
    • 2006-02-22
    • Mitsuyoshi MiyaiMasakazu Okada
    • Mitsuyoshi MiyaiMasakazu Okada
    • G09G3/36
    • G09G3/3651G09G3/3666G09G3/3696G09G2300/0486G09G2300/0876G09G2310/04G09G2310/063
    • This invention can provide a liquid crystal display unit which can employ any liquid crystal material without being limited by its dielectric constant and initialize liquid crystal layer at low voltages. A liquid crystal display unit comprising pixel electrodes which are disposed in a matrix, common electrode and one of electrodes of supplementary capacitor which is opposite to the pixel electrode, liquid crystal layer containing a memory-type liquid crystal material sandwiched between the pixel electrode and the common electrode, and switching elements which respectively turn on and off voltage to pixel electrodes, wherein the liquid crystal display unit changes the states of liquid crystals to perform image erasing, writing, and displaying operations in sequence while driving the common electrode and one of electrodes of the supplementary capacitor so that the electrodes may have an identical potential.
    • 本发明可以提供一种可以采用任何液晶材料而不受其介电常数限制并在低电压下初始化液晶层的液晶显示单元。 一种液晶显示单元,包括像素电极,其设置在与像素电极相对的矩阵,公共电极和辅助电容器的电极中的一个中,液晶层包含夹在像素电极和像素电极之间的存储型液晶材料 公共电极和分别对像素电极导通和截止电压的开关元件,其中液晶显示单元改变液晶的状态,以在驱动公共电极和电极中的一个之间依次执行图像擦除,写入和显示操作 的电极,使得电极可以具有相同的电位。