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    • 7. 发明授权
    • LCD columnar spacers made of a hydrophilic resin and LCD orientation
film having a certain surface tension or alignment capability
    • 由亲水树脂制成的LCD柱状隔离物和具有一定表面张力或取向能力的LCD取向膜
    • US5680189A
    • 1997-10-21
    • US483046
    • 1995-06-07
    • Michio ShimizuTakeshi NishiToshimitsu Konuma
    • Michio ShimizuTakeshi NishiToshimitsu Konuma
    • G02F1/1337G02F1/1339G02F1/141
    • G02F1/13394G02F1/141G02F2001/133742
    • A liquid crystal display using a hydrophobic material as the material of resinous columns to orient the molecules of the liquid crystal parallel to the substrates. A hydrophilic material can also be used as the material of resinous columns to orient the molecules of the liquid crystal vertical to the substrates. The liquid crystal molecules are oriented horizontally by making the surface tension of the orientation film greater than the surface tension of the resinous columns. The liquid crystal molecules are oriented vertically by making the surface tension of the orientation film smaller than the surface tension of the resinous columns. A mixture of a liquid crystal material and an uncured resin is placed in a liquid crystal cell. The uncured resin is precipitated (deposited) out of the mixture. The molecules of the liquid crystal material are oriented. Then, the uncured resin is cured. Thereafter, an aging step for reorienting the molecules of the liquid crystal material is carried out. This prevents disturbance of the orientation around the resinous columns and leads to an improvement in the voltage holding ratio.
    • 使用疏水材料作为树脂柱的材料的液晶显示器,以使液晶的分子平行于基板。 亲水材料也可以用作树脂柱的材料,以使液晶的分子垂直于基底。 通过使取向膜的表面张力大于树脂柱的表面张力,使液晶分子水平取向。 液晶分子通过使取向膜的表面张力小于树脂柱的表面张力而垂直取向。 将液晶材料和未固化树脂的混合物放置在液晶单元中。 未固化的树脂从混合物中沉淀(沉积)。 液晶材料的分子被取向。 然后,固化未固化的树脂。 此后,进行用于重新取向液晶材料分子的老化步骤。 这防止了树脂柱周围的取向的干扰,导致电压保持率的提高。
    • 8. 发明授权
    • Method of driving a ferroelectric liquid crystal display
    • 驱动铁电液晶显示器的方法
    • US5555110A
    • 1996-09-10
    • US167357
    • 1993-12-15
    • Toshimitsu KonumaTakeshi NishiHarumi Mori
    • Toshimitsu KonumaTakeshi NishiHarumi Mori
    • G09G3/20G09G3/36G02F1/133
    • G09G3/3651G09G3/2011G09G3/207
    • A liquid crystal electro-optical device comprising a ferroelectric liquid crystal material having spontaneous polarization. The liquid crystal material is sandwiched between substrates having TFTs thereon. When the liquid crystal material is driven with the TFTs, the TFTs apply a voltage in different polarities to switch the material between first and second states. This voltage for switching is required to be larger than the voltage that is necessary to maintain the present state of the liquid crystal material. To facilitate switching, the threshold value for inversion of the ferroelectric liquid crystal material preferably has a small value of 0.1 to 4 V. Preferably, the liquid crystal material shows uniform orientation or multi-microdomain orientation. There is also disclosed a liquid crystal electro-optical device comprising a liquid crystal material having spontaneous polarization. The liquid crystal material is sandwiched between transparent substrates having electrodes thereon. An orienting means is provided on one of the substrates surfaces which are in contact with the liquid crystal material to orient the liquid crystal material along one axis. When no voltage is applied from the electrodes to the liquid crystal material, the spontaneous polarization shows splay orientation between the substrates. When a voltage is applied, the spontaneous polarization shows uniform orientation.
    • 一种具有自发极化的铁电液晶材料的液晶电光装置。 液晶材料夹在其上具有TFT的基板之间。 当用TFT驱动液晶材料时,TFT施加不同极性的电压以在第一和第二状态之间切换材料。 该开关用电压要大于维持液晶材料的现状所必需的电压。 为了便于切换,铁电液晶材料的反转阈值优选为0.1〜4V的较小值。优选地,液晶材料显示均匀取向或多微区取向。 还公开了一种包括具有自发极化的液晶材料的液晶电光装置。 液晶材料夹在其上具有电极的透明基板之间。 在与液晶材料接触的一个基板表面上设置定向装置,以使液晶材料沿一个轴线定向。 当没有电压从电极施加到液晶材料时,自发极化显示出基板之间的喷射取向。 当施加电压时,自发极化显示均匀的取向。
    • 9. 发明授权
    • Electro-optical device utilizing a liquid crystal having a spontaneous
polarization
    • 利用具有自发极化的液晶的电光装置
    • US5541747A
    • 1996-07-30
    • US153901
    • 1993-11-17
    • Takeshi NishiToshimitsu KonumaAkira Sugawara
    • Takeshi NishiToshimitsu KonumaAkira Sugawara
    • G09G3/20G09G3/36G02F1/1343
    • G09G3/3651G09G2320/0219G09G3/2011G09G3/2014G09G3/2018G09G3/207
    • A high-performance liquid crystal display includes a pair of substrates and a liquid crystal cell containing a ferroelectric or antiferroelectric liquid crystal. TFTs or a ferroelectric thin film is formed on one substrate. A given amount of electric charge is supplied into the liquid crystal inside the pixel electrodes. After the supply, the charge is retained under a high-resistivity condition. The ratio of the area of parts of the liquid crystal material in a first state to the area of parts in a second state is controlled by the amount of electric charge supplied, thus achieving a wide gray scale. The fast response and the wide viewing angle intrinsic in the liquid crystal are fully exploited. Further, a liquid crystal display using a liquid crystal material consisting either of a liquid crystal material showing ferroelectricity or anfiferroelectricity or of a high polymer in which such a liquid crystal material is dispersed is disclosed. The liquid crystal material is so selected that it shows appropriate spontaneous polarization. The time for which an electric field is applied to the liquid crystal material is controlled to obtain a gray scale.
    • 高性能液晶显示器包括一对基板和含有铁电或反铁电液晶的液晶单元。 在一个基板上形成TFT或铁电薄膜。 给像素电极内的液晶供给一定量的电荷。 供电后,电荷保持在高电阻条件下。 第一状态下的液晶材料的部分面积与第二状态下的部分面积的比例由供给的电荷量控制,从而达到宽的灰度。 充分利用了液晶本身的快速响应和广视角。 此外,公开了使用由显示铁电性或铁电体的液晶材料构成的液晶材料的液晶显示器或其中分散有这种液晶材料的高分子量的液晶显示器。 选择液晶材料,使其显示适当的自发极化。 控制向液晶材料施加电场的时间以获得灰度级。