公开(公告)号：US20110019111A1

公开(公告)日：2011-01-27

申请号：US12728614

申请日：2010-03-22

申请人： Takashi Morikawa ,  Haruo Harada ,  Taijyu Gan ,  Yasunori Okano ,  Atsushi Hirano ,  Chisato Urano ,  Chikara Manabe ,  Takeo Kakinuma ,  Hiroshi Arisawa

发明人： Takashi Morikawa ,  Haruo Harada ,  Taijyu Gan ,  Yasunori Okano ,  Atsushi Hirano ,  Chisato Urano ,  Chikara Manabe ,  Takeo Kakinuma ,  Hiroshi Arisawa

IPC分类号： G02F1/135 ,  G02F1/133 ,  G02F1/13

CPC分类号： G02F1/135 ,  G02F1/133362 ,  G02F1/133371 ,  G02F1/1354 ,  G02F1/13718 ,  G02F2001/1351

摘要： A display medium comprises: a pair of electrodes to which a voltage is applied; a cholesteric liquid crystal layer provided between the pair of electrodes, wherein an alignment state of the cholesteric liquid crystal layer changes depending on a strength of an electric field generated upon application of a voltage to the pair of electrodes; and an intervening layer provided in an area between a part of the cholesteric liquid crystal layer and one of the pair of electrodes such that a strength of an electric field generated in the part of the cholesteric liquid crystal layer upon application of a voltage to the pair of electrodes is different from a strength of an electric field generated in another part of the cholesteric liquid crystal layer.

摘要翻译： 显示介质包括：施加电压的一对电极; 设置在所述一对电极之间的胆甾型液晶层，其中所述胆甾醇型液晶层的取向状态根据对所述一对电极施加电压而产生的电场的强度而变化; 以及设置在胆甾醇型液晶层的一部分与一对电极中的一方之间的区域中的中间层，使得在对该电极施加电压时在胆甾醇型液晶层的一部分中产生的电场的强度 的电极不同于胆甾型液晶层的另一部分产生的电场的强度。

公开(公告)号：US07817213B2

公开(公告)日：2010-10-19

申请号：US12247863

申请日：2008-10-08

申请人： Haruo Harada ,  Yasunori Okano ,  Chisato Urano ,  Hiroshi Arisawa ,  Makoto Gomyo ,  Taijyu Gan ,  Yasuhiro Yamaguchi ,  Tomozumi Uesaka

发明人： Haruo Harada ,  Yasunori Okano ,  Chisato Urano ,  Hiroshi Arisawa ,  Makoto Gomyo ,  Taijyu Gan ,  Yasuhiro Yamaguchi ,  Tomozumi Uesaka

IPC分类号： G02F1/135 ,  G09G3/36

CPC分类号： G02F1/133362 ,  G02F1/1334 ,  G02F1/13718 ,  G09G3/001 ,  G09G2300/0486 ,  G09G2310/0275

摘要： Sequentially performed are (1) an entire liquid crystal layer is initialized into a focal conic state, (2) an image is written onto the liquid crystal device by scanning with selecting exposure or non-exposure while applying a voltage that does not exceed a threshold value for a state change from the focal conic state to a homeotropic state during the non-exposure but exceeds the threshold value during the exposure and that causes the focal conic state and the homeotropic state to be bi-stable after the exposure, and (3) the application of the voltage is stopped to change a state of a portion, of which the state has changed to the homeotropic state, to the planer state. In (2), an electric field energy applied to an exposure portion of the liquid crystal layer is controlled to gradually increase from a start to an end of the series of scanning actions.

摘要翻译： 顺序地执行的是（1）整个液晶层被初始化为焦点锥形状态，（2）通过在施加不超过阈值的电压的情况下通过选择曝光或非曝光扫描来将图像写入液晶装置 在曝光期间状态从焦点锥形状态变化到垂直状态的值，并且在曝光期间超过阈值，并且导致焦点锥形状态和垂直状态在曝光之后是双稳态的，并且（3 ）停止施加电压以将其状态已变为垂面状态的部分的状态改变为平面状态。 在（2）中，控制施加到液晶层的曝光部分的电场能量，以从一系列扫描动作的开始到结束逐渐增加。

公开(公告)号：US20070268416A1

公开(公告)日：2007-11-22

申请号：US11598111

申请日：2006-11-13

申请人： Haruo Harada ,  Hiroshi Arisawa ,  Yasunori Okano ,  Makoto Gomyo ,  Taijyu Gan ,  Masahiro Sato

发明人： Haruo Harada ,  Hiroshi Arisawa ,  Yasunori Okano ,  Makoto Gomyo ,  Taijyu Gan ,  Masahiro Sato

IPC分类号： G02F1/13 ,  G02F1/133

CPC分类号： G02F1/1354 ,  G02F1/13718 ,  G02F2001/1355 ,  G02F2202/02 ,  G09G3/02 ,  G09G3/3629 ,  G09G3/3651 ,  G09G2300/0456 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2320/0252 ,  G09G2360/142

摘要： A method for driving a liquid crystal device to record an image on the liquid crystal device is provided. The liquid crystal device has: a pair of electrodes; and a liquid crystal layer of cholestric liquid crystal sandwiched between the pair of electrodes. The method includes: applying a voltage V1 higher than a threshold value of a phase change to the homeotropic phase to make the liquid crystal layer to be in a homeotoropic phase; applying selectively two voltages V2H and V2L higher than the voltage V1 to each portion of the liquid crystal layer; and applying a voltage V3 under a condition of such a magnification and application time that a portion to which the voltage V2H has been applied changes to a planar phase and a portion to which the voltage V2L has been applied changes to a focal conic phase.

摘要翻译： 提供一种用于驱动液晶装置以在液晶装置上记录图像的方法。 液晶装置具有：一对电极; 以及夹在该对电极之间的胆甾醇液晶的液晶层。 该方法包括：将高于相变阈值的电压V 1施加到垂直相位，以使液晶层处于同视位置; 选择性地向液晶层的每个部分施加比电压V 1高的两个电压V 2 H和V 2 L; 在施加了电压V 2 H的部分的施加时间和施加时间的情况下施加电压V 3变化为平面相，并且施加了电压V 2 L的部分变化为 焦点圆锥相。