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51. 发明授权

US08252202B2 Nematic liquid crystal composition and bistable nematic liquid crystal display 失效
标题翻译：向列型液晶组合物和双稳向列型液晶显示器
公开(公告)号：US08252202B2
公开(公告)日：2012-08-28
申请号：US12451081
申请日：2008-05-16
申请人： Hidetoshi Nakata , Kiyofumi Takeuchi , Haruyoshi Takatsu , Daniel Stoenescu , Ivan Dozov , Jean-Claude Dubois
发明人： Hidetoshi Nakata , Kiyofumi Takeuchi , Haruyoshi Takatsu , Daniel Stoenescu , Ivan Dozov , Jean-Claude Dubois
IPC分类号： C09K19/00 , C09K19/06 , C09K19/30 , C09K19/52
CPC分类号： C09K19/42 , C09K19/44 , C09K19/46 , Y10T428/10 , Y10T428/1036
摘要： A nematic liquid crystal composition of the present invention includes at least 20% by weight of one, or two or more compounds selected from compound group A; and 5 to 50% by weight of one, or two or more compounds selected from compound group B, wherein the relative proportions of the above-mentioned compounds used in the nematic liquid crystal composition is determined to simultaneously obtain the specific physical characteristics for the composition, and an anchoring breaking voltage Uλ/4 is less than or equal to 25 V when the product (Δn·d) of the refractive index anisotropy (Δn) at 20° C. and the thickness (d) is 140 nm and the liquid crystal composition is confined between two substrates for a bistable nematic liquid crystal display in which at least one of the substrates have a weak zenithal anchoring force.
摘要翻译：本发明的向列液晶组合物包含至少20重量％的选自化合物组A中的一种或两种或更多种化合物; 和5〜50重量％的选自化合物组B中的一种或两种以上的化合物，其中确定向列型液晶组合物中使用的上述化合物的相对比例，以同时获得组合物的具体物理特性，当在20℃下的折射率各向异性（＆Dgr; n）的产品（＆Dgr; n·d）和厚度（d）为140时，锚定断裂电压Uλ/ 4小于或等于25V 并且液晶组合物被限制在双稳态向列型液晶显示器的两个基板之间，其中至少一个基板具有弱的天顶锚定力。

52. 发明授权

US08085370B2 Single-polarizer reflective bistable twisted nematic (BTN) liquid crystal display device 失效
标题翻译：单偏光镜反光双向扭曲向列（BTN）液晶显示装置
公开(公告)号：US08085370B2
公开(公告)日：2011-12-27
申请号：US11920933
申请日：2006-05-10
申请人： Cécile Joubert , Terry Scheffer
发明人： Cécile Joubert , Terry Scheffer
IPC分类号： G02F1/1335
CPC分类号： G02F1/1391 , G02F1/133634 , G02F2001/133531 , G02F2001/133567
摘要： The application relates to a single-polarizer reflective bistable twisted nematic (BTN) liquid crystal display device comprising a liquid crystal layer of thickness d, birefringence Δn and retardation Δnd, said liquid crystal layer being situated between two substrates and between a polarizer and a reflector, said liquid crystal layer in the absence of an applied electric field having two stable uniformly twisted textures, the twists of the two stable textures differing by an angle being equal mainly to 180°, and at least one compensation layer positioned between said polarizer and said reflector, said compensation layer being composed of at least one birefringent film, said birefringent film having an optical anisotropy defined by three characteristic refractive indices nx, ny, nz, along three corresponding axis x, y, z of index ellipsoid, x and y being situated inside the substrates plane, nx and ny being called in plane indices, with nx≧ny, x being called slow axis, and z being perpendicular to the substrates plane with biaxiality parameter Nz equal to (nx−nz)/(nx−ny), characterized in that Nz lies between −∞ and ½ so that under oblique viewing the retardation of the stable texture corresponding to the dark state is compensated to improve the contrast ratio and simultaneously the retardation of the stable texture corresponding to the bright state is modified to decrease the color shift.
摘要翻译：本申请涉及一种单偏振器反射双稳态扭曲向列（BTN）液晶显示装置，其包括厚度d，双折射＆Dgr; n和延迟＆Dgr的液晶层，所述液晶层位于两个基板之间，偏振器和反射器，所述液晶层在不存在具有两个稳定均匀扭曲纹理的施加电场的情况下，两个稳定纹理的扭曲主要与180°相等，并且至少一个补偿层位于所述偏振器和所述反射器，所述补偿层由至少一个双折射膜组成，所述双折射膜具有由三个特征折射率nx，ny，nz沿着三个对应轴的指数椭圆体的轴线x，y，z限定的光学各向异性， x和y位于衬底平面内，nx和ny称为平面指数，nx≥ny，x称为慢轴，z 垂直于基板平面，双轴参数Nz等于（nx-nz）/（nx-ny），其特征在于Nz在-∞和½之间，使得在倾斜观察下，对应于暗态的稳定纹理的延迟被补偿以提高对比度，并且同时修改对应于亮状态的稳定纹理的延迟以减少色偏。

53. 发明申请

US20110211148A1 NEMATIC LIQUID CRYSTAL COMPOSITION AND BISTABLE NEMATIC LIQUID CRYSTAL DISPLAY 失效
标题翻译： NEMATIC液晶组合物和BISTABLE NEMATIC液晶显示器
公开(公告)号：US20110211148A1
公开(公告)日：2011-09-01
申请号：US12451081
申请日：2008-05-16
申请人： Hidetoshi Nakata , Kiyofumi Takeuchi , Haruyoshi Takatsu , Daniel Stoenescu , Ivan Dozov , Jean-Claude Dubois
发明人： Hidetoshi Nakata , Kiyofumi Takeuchi , Haruyoshi Takatsu , Daniel Stoenescu , Ivan Dozov , Jean-Claude Dubois
IPC分类号： G02F1/1337 , C09K19/30 , C09K19/34
CPC分类号： C09K19/42 , C09K19/44 , C09K19/46 , Y10T428/10 , Y10T428/1036
摘要： A nematic liquid crystal composition of the present invention includes at least 20% by weight of one, or two or more compounds selected from compound group A; and 5 to 50% by weight of one, or two or more compounds selected from compound group B, wherein the relative proportions of the above-mentioned compounds used in the nematic liquid crystal composition is determined to simultaneously obtain the specific physical characteristics for the composition, and an anchoring breaking voltage Uλ/4 is less than or equal to 25 V when the product (Δn·d) of the refractive index anisotropy (Δn) at 20° C. and the thickness (d) is 140 nm and the liquid crystal composition is confined between two substrates for a bistable nematic liquid crystal display in which at least one of the substrates have a weak zenithal anchoring force.
摘要翻译：本发明的向列液晶组合物包含至少20重量％的选自化合物组A中的一种或两种或更多种化合物; 和5〜50重量％的选自化合物组B中的一种或两种以上的化合物，其中确定向列型液晶组合物中使用的上述化合物的相对比例，以同时获得组合物的具体物理特性，当在20℃下的折射率各向异性（＆Dgr; n）的产品（＆Dgr; n·d）和厚度（d）为140时，锚定断裂电压Uλ/ 4小于或等于25V 并且液晶组合物被限制在双稳态向列型液晶显示器的两个基板之间，其中至少一个基板具有弱的天顶锚定力。

54. 发明授权

US07864148B2 Bistable nematic liquid crystal display device and method for controlling such a device 失效
标题翻译：双稳向列型液晶显示装置及其控制方法
公开(公告)号：US07864148B2
公开(公告)日：2011-01-04
申请号：US10536419
申请日：2003-11-24
申请人： Philippe Martinot-Lagarde , Alain Boissier , Jacques Angele , François Leblanc
发明人： Philippe Martinot-Lagarde , Alain Boissier , Jacques Angele , François Leblanc
IPC分类号： G09G3/36
CPC分类号： G02F1/1391
摘要： The present invention relates to a display device comprising a bistable nematic liquid-crystal matrix screen with anchoring breaking, characterized in that it comprises: components (40) capable of switching between an off state and an on state, these components being placed respectively between a drive electrode (47) associated with each pixel and a display state control link (45); and means capable of applying, to the input of each aforementioned component (40), via the state control link (45), input signals comprising at least two phases separated by a controlled time interval, namely a first phase during which the input signal has an amplitude sufficient to permit breaking of the anchoring of the liquid crystal on the associated pixel, then a second phase during which the amplitude of the input signal is controlled in order to select one of the two bistable states of the liquid crystal, the time interval between the two phases being adapted in order to break the anchoring of the liquid crystal on the said associated pixel before the second input signal phase is applied.
摘要翻译：本发明涉及包括具有锚定断裂的双稳态向列型液晶矩阵屏幕的显示装置，其特征在于，它包括：能够在断开状态和导通状态之间切换的部件（40），这些部件分别放置在与各像素相关联的驱动电极（47）和显示状态控制链路（45）; 以及能够经由状态控制链路（45）向每个前述组件（40）的输入施加包括由受控时间间隔分开的至少两个相位的输入信号的装置，即输入信号具有的第一相位足以允许液晶在相关联的像素上的锚定断裂的振幅，然后是控制输入信号的幅度以便选择液晶的两个双稳态之一的第二相，时间间隔两相之间被适配为在施加第二输入信号相位之前破坏在所述相关联的像素上的液晶的锚定。

55. 发明申请

US20070159590A1 Display device with a black-optimizing bistable nematic screen and method for the definition of said device 失效
标题翻译：具有黑色优化双稳态向列屏的显示装置和用于定义所述装置的方法
公开(公告)号：US20070159590A1
公开(公告)日：2007-07-12
申请号：US10580319
申请日：2004-11-25
申请人： Cecile Joubert , Daniel Stoenescu , Alexandre Carton , Patrice Davi
发明人： Cecile Joubert , Daniel Stoenescu , Alexandre Carton , Patrice Davi
IPC分类号： C09K19/02
CPC分类号： G02F1/1391
摘要： A device nematic liquid crystal display device has two stable states corresponding to two liquid crystal molecule textures whose torsion differs by 150° to 180° in terms of absolute value. The device includes two polarizers (10, 40), one (10) of which is placed on the observer side, the other (40) being placed on the opposite side of the liquid crystal cell. The orientation of the two polarizers is offset by a value which is equal to the rotatory power of the cell±n/2, the rotatory power corresponding to the most twisted texture effect.
摘要翻译：器件向列液晶显示装置具有两个稳定状态，对应于两个液晶分子纹理，其扭矩以绝对值的差异为150°至180°。该装置包括两个偏振器（10,40），其中一个（10）放置在观察者侧，另一个（40）被放置在液晶单元的相对侧上。两个偏振器的方向偏移等于单元旋转功率的值±n / 2，旋转功率对应于最扭曲的纹理效应。

56. 发明授权

US07173587B2 Addressing process and device for a bistable liquid crystal screen 失效
标题翻译：双稳态液晶屏的寻址过程和设备
公开(公告)号：US07173587B2
公开(公告)日：2007-02-06
申请号：US10353244
申请日：2003-01-27
申请人： Jacques Angele , Romain Vercelletto , Thierry Elbhar
发明人： Jacques Angele , Romain Vercelletto , Thierry Elbhar
IPC分类号： G00G3/36
CPC分类号： G02F1/1391 , G09G3/3629 , G09G2300/0486 , G09G2310/06 , G09G2310/066 , G09G2320/0209
摘要： This invention concerns a process for addressing a bistable liquid crystal material screen, characterized in that it comprises at least the step consisting of applying, to the screen column electrodes, an electrical signal whose characteristics are adapted to reduce the mean quadratic voltage of the parasite pixel pulses, in order to reduce the parasitic addressing optical effects.
摘要翻译：本发明涉及一种用于寻址双稳态液晶材料屏幕的方法，其特征在于至少包括将屏幕列电极施加电特性的电信号，该电信号的特性适于降低寄生像素的平均二次电压脉冲，以减少寄生寻址光学效应。

57. 发明授权

US07022809B2 Polyimides for anchoring liquid crystals, display devices including same and method for the preparation of said devices 失效
标题翻译：用于固定液晶的聚酰亚胺，包括其的显示装置和用于制备所述装置的方法
公开(公告)号：US07022809B2
公开(公告)日：2006-04-04
申请号：US10479274
申请日：2002-05-30
申请人： Sandrine Lamarque , Jean-Claude Dubois , Didier Gallaire
发明人： Sandrine Lamarque , Jean-Claude Dubois , Didier Gallaire
IPC分类号： C08G73/10 , C08G69/28 , B05D3/02
CPC分类号： C08G73/1039 , C09B57/08 , G02F1/133723 , Y10T428/10 , Y10T428/1005 , Y10T428/1023 , Y10T428/31721
摘要： The present invention relates to novel polyimides derived from 6FDA and from 3,3-dihydroxy-4,4′-diaminobiphenyl and novel polyimides derived from PMDA and from Bis-AP-AF, having alkyl, arylalkyl, heteroarylalkyl, (cycloalkyl)alkyl, fluoroalkyl or siloxane side groups.The present invention also relates to a method of producing nematic liquid-crystal devices, which comprises the steps consisting in: depositing one of the polyimides according to the invention on a substrate; annealing the polyimide in one or more steps; and defining an azimuthal orientation of the polyimide coating.
摘要翻译：本发明涉及衍生自6FDA和3,3-二羟基-4,4'-二氨基联苯的新型聚酰亚胺和衍生自PMDA和来自Bis-AP-AF的新型聚酰亚胺，其具有烷基，芳基烷基，杂芳基烷基，（环烷基）烷基，氟烷基或硅氧烷侧基。本发明还涉及一种生产向列液晶装置的方法，其包括以下步骤：将根据本发明的聚酰亚胺之一沉积在基材上; 以一个或多个步骤退火聚酰亚胺; 并限定聚酰亚胺涂层的方位取向。

58. 发明授权

US08405591B2 Liquid crystal display device with improved switching means 失效
标题翻译：具有改进的开关装置的液晶显示装置
公开(公告)号：US08405591B2
公开(公告)日：2013-03-26
申请号：US12527416
申请日：2008-02-20
申请人： Philippe Martinot-Lagarde , Stéphane Joly , Jean Denis Laffitte
发明人： Philippe Martinot-Lagarde , Stéphane Joly , Jean Denis Laffitte
IPC分类号： G09G3/36
CPC分类号： G09G3/36 , G02F1/1391 , G09G3/3622 , G09G3/3651 , G09G2300/0486 , G09G2320/0209
摘要： The invention relates to a method for controlling a liquid crystal display, comprising a matrix of pixels arranged in crossed lines and columns and in which a switch in the state of the liquid crystal molecules, controlled by application of an electric control signal between two electrodes (50, 52) enclosing each pixel, which brings about a flow in a given direction (18), the pixel addressing being carried out by a line by line addressing either in a single step or in two steps, the first step comprising a collective addressing of at least a part of the screen in a given single texture, followed by a second step of line by line addressing, characterized in comprising, for controlling the switching of at least some of the pixels (P), a step for application to at least one adjacent pixel (58) of auxiliary electric signals wherein, depending on the direction of flow of the pixel (P) the switching of which is to be controlled, the rising or falling fronts of the auxiliary signals are temporally advanced in relation to or simultaneous with the active falling front of the electric control signal with a time offset of between 0 and several tens of microseconds at ambient temperature, such as to promote the switching of said pixel (P) for control, said auxiliary electric signals being applied in the second step when the addressing is in two steps. The invention further relates to a display.
摘要翻译：本发明涉及一种用于控制液晶显示器的方法，包括以交叉线和列布置的像素矩阵，其中通过在两个电极之间施加电控制信号来控制液晶分子状态的开关（每个像素包围每个像素，其在给定的方向（18）上产生流动，所述像素寻址通过一个或多个步骤中的逐行寻址来执行，所述第一步骤包括集体寻址在给定单个纹理中的屏幕的至少一部分，随后是逐行寻址的第二步骤，其特征在于包括用于控制至少一些像素（P）的切换，用于应用于辅助电信号的至少一个相邻像素（58），其中，根据要切换控制的像素（P）的流动方向，辅助信号的上升或下降前沿是速度在环境温度下，时间偏移在0和几十微秒之间，相对于电控制信号的有效下降沿而与其同时进行，以促进所述像素（P）的切换用于控制，所述辅助当寻址为两步时，在第二步中应用电信号。本发明还涉及显示器。

59. 发明授权

US07616180B2 Advanced method and device with a bistable nematic liquid crystal display 失效
标题翻译：具有双稳态向列型液晶显示器的先进方法和装置
公开(公告)号：US07616180B2
公开(公告)日：2009-11-10
申请号：US10557721
申请日：2004-05-14
申请人： Philippe Martinot-Lagarde , Jacques Angele , Stéphane Joly , Jean-Denis Laffitte , François Leblanc , Christophe Body
发明人： Philippe Martinot-Lagarde , Jacques Angele , Stéphane Joly , Jean-Denis Laffitte , François Leblanc , Christophe Body
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G3/2018 , G09G3/3637 , G09G2300/0486 , G09G2310/02 , G09G2310/062 , G09G2310/066
摘要： The invention relates to a bistable nematic liquid crystal matricial display device wherein the shift to one of the at least two bistable states is carried out by displacing the liquid crystal parallel to the surfaces of the device, characterized by the fact that it comprises a system for addressing various elements of the display device, characterized in that it comprises a system for addressing the various elements of the display device such that it does not simultaneously shift two adjacent elements located in the direction in which the material flows. The invention also relates to a display method. The invention makes it possible to control the grey level by controlling the scan rings of the hydrodynamic flow in order to define the border between two different textures.
摘要翻译：双稳态向列型液晶成像显示装置技术领域本发明涉及一种双稳态向列型液晶成像显示装置，其中通过使液晶平行于装置的表面移位来实现至少两个双稳态之一的转换，其特征在于它包括用于寻址显示装置的各种元件，其特征在于，其包括用于寻址显示装置的各种元件的系统，使得其不同时移动位于材料流动方向上的两个相邻元件。本发明还涉及显示方法。本发明通过控制流体动力流的扫描环以便限定两个不同纹理之间的边界，可以控制灰度级。

60. 发明授权

US07352346B2 Bistable liquid crystal display device including improved addressing means 失效
标题翻译：双稳态液晶显示装置，包括改进的寻址装置
公开(公告)号：US07352346B2
公开(公告)日：2008-04-01
申请号：US10511833
申请日：2003-04-17
申请人： Jacques Angele , Romain Vercelletto , Thierry Elbhar
发明人： Jacques Angele , Romain Vercelletto , Thierry Elbhar
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G02F1/1391 , G09G3/3614 , G09G2300/0486 , G09G2310/0205 , G09G2310/06 , G09G2310/066
摘要： A method of electrically addressing a matrix screen of bistable nematic liquid crystals with breaking of anchoring is disclosed. Controlled electrical signals are applied respectively to row electrodes and to column electrodes of the screen. A plurality of rows are simultaneously addressed using similar row signals that are offset in time by a duration greater than or equal to the time column voltages that are applied. The row addressing signals have, in a first period, at least one voltage value serving to break the anchoring of all of the pixels in the row. This is followed by a second period that enables the final states of the pixels making up the address row to be determined. The final states are a function of the value of each of the electrical signals applied to the corresponding columns.
摘要翻译：公开了一种通过锚定断裂来电寻址双稳态向列型液晶的矩阵屏幕的方法。控制电信号分别施加到屏幕的行电极和列电极。使用在时间上偏移持续时间大于或等于所施加的时间列电压的类似行信号来同时寻址多行。行寻址信号在第一时段中具有至少一个电压值，用于破坏行中所有像素的锚定。这之后是使得能够确定构成地址行的像素的最终状态的第二周期。最终状态是施加到相应列的每个电信号的值的函数。

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