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公开(公告)号：US09530489B2
公开(公告)日：2016-12-27
申请号：US14527166
申请日：2014-10-29
发明人： Pierre Caubet , Mickael Gros-Jean
CPC分类号： G11C11/42 , G02F1/15 , G02F1/1523 , G02F1/1525 , G02F1/1527 , G02F1/163 , G02F3/022 , G02F2001/1512 , G02F2001/1635 , G02F2201/58 , G11C7/00 , G11C13/04
摘要： A memory device may include an access transistor, and a memory cell configured to store an item of information. The memory cell may include first and second electrodes configured to have different optoelectronic states corresponding respectively to two values of the item of information, and to switch between the different optoelectronic states based upon a control signal external to the memory cell, the different optoelectronic states being naturally stable in an absence of the control signal. The memory cell may also include a solid electrolyte between the first and second electrodes.
摘要翻译： 存储器件可以包括存取晶体管，以及被配置为存储信息项的存储单元。 存储单元可以包括被配置为具有分别对应于信息项的两个值的不同光电子状态的第一和第二电极，以及基于存储单元外部的控制信号在不同的光电子态之间切换，不同的光电子态是 在没有控制信号的情况下自然稳定。 存储单元还可以包括在第一和第二电极之间的固体电解质。
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公开(公告)号：US20020041408A1
公开(公告)日：2002-04-11
申请号：US09961311
申请日：2001-09-25
申请人： ALCATEL
发明人： Alexandre Shen , Fabrice Devaux
IPC分类号： G02F003/00
CPC分类号： H04B10/299 , G02F3/022 , H04B2210/517
摘要： A device (1) for converting an RZ signal into a NRZ signal comprising: an optical bistable means (5), an output level of this means passing from a low level to a high level when an input power level crosses in an upward direction a first threshold, and returning to a low level when an input level crosses in a downward direction a second threshold below the first, the output (7) of the bistable (5) carrying the NRZ signal, a means (2) for converting the RZ signal into a control signal of an output logic level of the bistable (5) receiving the RZ signal, and delivering said control signal of the bistable (5), this signal having a level above the first threshold when the RZ signal passes to 1 and which becomes lower at the second threshold only if the RZ signal passes to 0 and stays there for more than one bit time.
摘要翻译： 一种用于将RZ信号转换成NRZ信号的装置（1），包括：光学双稳态装置（5），当输入功率电平沿向上方向a交叉时，该装置的输出电平从低电平传递到高电平 第一阈值，并且当输入电平在向下方向上跨越第一阈值低于携带NRZ信号的双稳态（5）的输出（7）时，返回到低电平，用于转换RZ的装置（2） 信号转换为接收RZ信号的双稳态（5）的输出逻辑电平的控制信号，并且当RZ信号传递到1时，传送双稳态（5）的控制信号，该信号具有高于第一阈值的电平， 其仅在RZ信号传递到0并且停留在多于一个位时间的情况下在第二阈值处变低。
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公开(公告)号：US5625477A
公开(公告)日：1997-04-29
申请号：US225836
申请日：1994-04-11
申请人： Bao-Gang Wu , Jianmi Gao , Hongxi Zhou , Yao-Dong Ma
发明人： Bao-Gang Wu , Jianmi Gao , Hongxi Zhou , Yao-Dong Ma
CPC分类号： G02F1/13718 , G09G3/3629 , G02F3/022 , G09G2300/0486 , G09G2310/06 , G09G3/2018
摘要： A light modulating apparatus containing cholesteric liquid crystals capable of indefinite zero field retention of optical images, including full color and complete gray scale capability, is described. This invention is predicated on establishment of zero field multistable liquid crystal domains representing a continuous distribution of states ranging from the highly reflective planar to the light-scattering focal-conic structures. The zero field multistable domain structure stability is achieved by controlling solid surface-liquid crystal boundary interactions to provide essential equalization of the total system energy of each of the domain structures. This is the first time this equalization, and thus zero field multistability, has been achieved without the use of a polymer gel addition to create rigid polydomains in the liquid crystal mix. The establishment of a particular domain structure, and thus the degree of light reflection or scattering by individual display pixels, is controlled using either a single relatively long voltage pulse or a number of shorter duration successive voltage pulses. The zero field multistability achieved is remarkably stable against both mechanical shocks and thermal variations. Because these displays eliminate the need for backlighting and image refreshing energy input, they represent ultra low power consumption devices ideal for use with portable display systems. Because these displays also eliminate the need for polarizers, analyzers, retarder and color filters, they are ultra thin and particularly well suited for use in ultra large (i.e., billboard) displays using a building block approach which retains total spatial integrity. These displays can also be fabricated as flexible all-plastic units again utilizing the overall thinness of these devices.
摘要翻译： 描述了包含能够对包括全色和完全灰度级能力在内的光学图像的无限零场保持的胆甾型液晶的光调制装置。 本发明基于建立零场多维液晶畴，其表示从高反射平面到光散射聚焦圆锥结构的状态的连续分布。 通过控制固体表面 - 液晶边界相互作用来提供零域多结构域结构稳定性，以提供每个畴结构的总系统能量的基本均衡。 这是首次在不使用聚合物凝胶添加以在液晶混合物中形成刚性多晶畴的情况下实现了这种均衡，因此零场多重性。 使用单个相对长的电压脉冲或多个较短持续时间的连续电压脉冲来控制特定畴结构的建立以及因此各个显示像素的光反射或散射的程度。 实现的零场多重性对于机械冲击和热变化都非常稳定。 因为这些显示器消除了对背光和图像刷新能量输入的需求，所以它们代表了超低功耗设备，非常适用于便携式显示系统。 因为这些显示器也消除了对偏振器，分析器，延迟器和滤色器的需要，它们是超薄的并且特别适用于使用保持总体空间完整性的构建块方法的超大型（即广告牌）显示器。 这些显示器也可以再次利用这些装置的整体薄度制成柔性全塑单元。
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公开(公告)号：US5028108A
公开(公告)日：1991-07-02
申请号：US366129
申请日：1989-06-15
申请人： Terence P. Young
发明人： Terence P. Young
CPC分类号： G02F1/3133 , G02F1/025 , G02F3/022 , G02F2001/0151 , G02F2202/101 , G02F2202/102
摘要： An optical device comprises a heterojunction bipolar transistor which includes a light guiding layer to which the base contact is made. A ridge is included adjacent to the light guiding layer and acts as the emitter or collector of the transistor, the ridge also defining the lateral extent of the light guiding region. Current injected via the base contact controls the electric field in the region of the ridge and hence the refractive index of the layer controlling the passage of light transmitted along it.
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公开(公告)号：US4761060A
公开(公告)日：1988-08-02
申请号：US795814
申请日：1985-11-07
申请人： Tsuyotake Sawano
发明人： Tsuyotake Sawano
摘要： An optical D flipflop comprising a 2.times.1 optical switch and a optical bistable element. The flipflop has a first input end adapted to receive optical digital data, a second input end adapted to receive a biasing optical signal and at least one output end for emitting a light beam comprising the bias signal or optical information pulses, depending upon the state of a clock signal applied to the signal flip flop switch. The flip flops, when connected in cascade through light branching circuits, act as a shift register.
摘要翻译： 一种包括2×1光开关和光学双稳态元件的光学D触发器。 触发器具有适于接收光学数字数据的第一输入端，适于接收偏置光信号的第二输入端和用于发射包括偏置信号或光信息脉冲的光束的至少一个输出端，这取决于 施加到信号触发器开关的时钟信号。 当通过光分支电路级联连接时，触发器用作移位寄存器。
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公开(公告)号：US3851318A
公开(公告)日：1974-11-26
申请号：US40543173
申请日：1973-10-11
申请人： INT LIQUID XTAL CO
发明人： TAYLOR T , FERGASON J
CPC分类号： G02F1/13781 , G02F3/022 , G11C13/048 , G11C13/06
摘要： The unique properties of the Smectic C-phase of a liquid crystal are used to store information represented by the bistable orientation directions of molecular axes. Groups of molecules contained between transparent surfaces which are treated in a particular manner to develop optical homogeneity are used as storage elements. The information state of the storage element is set by causing the molecular axes within the element to assume either a first or a second stable orientation of the axes. Various methods for reading, writing, and erasing information stored in this manner are disclosed.
摘要翻译： 使用液晶的Smectic C相的独特性质来存储由分子轴的双稳态取向方向表示的信息。 使用以特定方式处理以形成光学均匀性的透明表面之间的分子组用作存储元件。 通过使元件内的分子轴呈现轴的第一或第二稳定取向来设定存储元件的信息状态。 公开了以这种方式存储的用于读取，写入和擦除信息的各种方法。
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公开(公告)号：US20160372183A1
公开(公告)日：2016-12-22
申请号：US15249583
申请日：2016-08-29
发明人： PIERRE CAUBET , MICKAEL GROS-JEAN
CPC分类号： G11C11/42 , G02F1/15 , G02F1/1523 , G02F1/1525 , G02F1/1527 , G02F1/163 , G02F3/022 , G02F2001/1512 , G02F2001/1635 , G02F2201/58 , G11C7/00 , G11C13/04
摘要： A memory device may include an access transistor, and a memory cell configured to store an item of information. The memory cell may include first and second electrodes configured to have different optoelectronic states corresponding respectively to two values of the item of information, and to switch between the different optoelectronic states based upon a control signal external to the memory cell, the different optoelectronic states being naturally stable in an absence of the control signal. The memory cell may also include a solid electrolyte between the first and second electrodes.
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公开(公告)号：US08054669B2
公开(公告)日：2011-11-08
申请号：US12189983
申请日：2008-08-12
IPC分类号： G11C13/00
CPC分类号： G02F1/011 , G02F1/1523 , G02F1/225 , G02F1/313 , G02F3/022 , G02F2203/15
摘要： A non-volatile programmable electro-optical element alters absorption characteristics of an optical medium that comprises a doped transition metal oxide material including F-centers. The F-centers are electrostatically moved into or out of the regions containing a wavefunction of an optical beam. A specific F-center profile in the transition metal oxide material may be programmed into the optical medium. The F-center profile alters an absorption profile within the optical medium. The spectral range for transmission of electromagnetic radiation in the optical medium may be tailored by the F-centers. Once the absorption profile is set by an electrical signal, the optical element maintains its state even when the electrical signal is turned off. Thus, the programming node may be disconnected from a power supply network, thereby enabling a low power operation of the electro-optical element. The inventive electro-optical element may be employed for both the visible and the infrared wavelength spectrum.
摘要翻译： 非易失性可编程电光元件改变包括掺杂的过渡金属氧化物材料（包括F-中心）的光学介质的吸收特性。 F中心被静电地移入或移出包含光束波函数的区域。 过渡金属氧化物材料中的特定的F中心分布可以被编程到光学介质中。 F中心轮廓改变光学介质内的吸收曲线。 光介质中电磁辐射传输的光谱范围可以由F-中心来定制。 一旦通过电信号设置吸收曲线，即使当电信号被关闭时，光学元件也保持其状态。 因此，编程节点可以与电源网络断开，从而能够实现电光元件的低功率操作。 本发明的电光元件可以用于可见光和红外波长光谱。
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公开(公告)号：US06643040B2
公开(公告)日：2003-11-04
申请号：US09961311
申请日：2001-09-25
申请人： Alexandre Shen , Fabrice Devaux
发明人： Alexandre Shen , Fabrice Devaux
IPC分类号： G06E100
CPC分类号： H04B10/299 , G02F3/022 , H04B2210/517
摘要： The present invention is a device for converting an RZ signal into a NRZ signal which contains an optical bistable device (5), where an output level of this device passing from a low level to a high level when an input power level crosses in an upward direction a first threshold, and returning to a low level when an input level crosses in a downward direction a second threshold below the first, the output (7) of the bistable (5) carrying the NRZ signal, and a device (2) for converting the RZ signal into a control signal of an output logic level of the optical bistable device (5) receiving the RZ signal, and delivering the control signal of the optical bistable device (5), this signal having a level above the first threshold when the RZ signal passes to 1 and which becomes lower at the second threshold only if the RZ signal passes to 0 and stays there for more than one bit time.
摘要翻译： 本发明是一种用于将RZ信号转换为包含光学双稳态器件（5）的NRZ信号的装置，其中当输入功率电平向上跨越时，该器件的输出电平从低电平传递到高电平 方向为第一阈值，并且当输入电平在向下方向上跨过第一阈值低于携带NRZ信号的双稳态（5）的输出（7）的第二阈值时返回到低电平;以及用于 将RZ信号转换为接收RZ信号的光学双稳态器件（5）的输出逻辑电平的控制信号，并且传输光学双稳态器件（5）的控制信号，该信号具有高于第一阈值的电平，当 只有当RZ信号传递到0并且停留在多于一个位的时间时，RZ信号才转到1，并且在第二阈值处变低。
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10.发明授权
公开(公告)号：US5251048A
公开(公告)日：1993-10-05
申请号：US885754
申请日：1992-05-18
申请人： J. William Doane , Deng-Ke Yang
发明人： J. William Doane , Deng-Ke Yang
IPC分类号： G02F1/1334 , G02F1/137 , G02F3/02 , G09G3/36 , G02F1/133
CPC分类号： G02F1/1334 , G09G3/3629 , G09G3/3696 , G02F1/13718 , G02F3/022 , G09G2300/0486
摘要： A light modulating apparatus comprising a liquid crystal light modulating material confined between substrates, elongated electrically-conductive paths supported on opposite sides of the light modulating material by the substrates and a pair of gating systems for supplying voltage pulses to the electrically conductive paths for addressing the light modulating material is disclosed. The light modulating material includes polydomains of polymer network dispersed in a chiral nematic liquid crystal having positive dielectric anisotropy. This material is confined by the substrates between inner surfaces treated to promote homogeneous alignment of the liquid crystal near the inner surfaces. The apparatus provides energy efficient passive control of a bistable light modulating material.
摘要翻译： 一种光调制装置，包括限制在基板之间的液晶光调制材料，由基板支撑在光调制材料的相对侧上的细长导电路径和用于向导电路径提供电压脉冲的一对门控系统， 公开了光调制材料。 光调制材料包括分散在具有正介电各向异性的手性向列型液晶中的聚合物网络的多畴。 这种材料被处理过的内表面之间的衬底所限制，以促进内表面附近的液晶的均匀取向。 该装置提供双稳态光调制材料的能量效率被动控制。
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