Plasma addressed liquid crystal display panel with optimized
relationship between liquid crystal parameters and cover sheet thickness
    11.
    发明授权
    Plasma addressed liquid crystal display panel with optimized relationship between liquid crystal parameters and cover sheet thickness 失效
    等离子体寻址液晶显示面板,液晶参数和盖板厚度之间具有优化的关系

    公开(公告)号:US5903325A

    公开(公告)日:1999-05-11

    申请号:US893650

    申请日:1997-07-11

    CPC分类号: G02F1/13334

    摘要: In a plasma addressed liquid crystal display panel comprising a channel substrate, a cover sheet, a layer of twisted nematic liquid crystal material, an upper substrate, and an array of electrodes on the lower surface of the upper substrate, ##EQU1## where V.sub.x is the voltage that will turn a simple TN liquid crystal cell from the off state to X% transmissive in a normally black mode, d.sub.TD is the thickness of the cover sheet, d.sub.LC is the thickness of the liquid crystal layer, .epsilon..sub.TD is the dielectric constant of the cover sheet, .epsilon..sub..perp. is the perpendicular dielectric constant of the liquid crystal material, and .epsilon..sub..parallel. is the parallel dielectric constant of the liquid crystal material, and d.sub.LC .DELTA.n.sub.LC is in the range from about 0.4 to 0.5, where .DELTA.n.sub.LC is the difference in refractive indices for the liquid crystal material.

    摘要翻译: 在等离子体寻址液晶显示面板中,其中Vx是上基板的下表面上的通道基板,覆盖片,扭曲向列型液晶材料层,上基板和电极阵列,其中Vx是 将简单的TN液晶单元从常态黑色模式转换为X%透射,dTD是覆盖片的厚度,dLC是液晶层的厚度,εTD是覆盖层的介电常数 片,ε正ORTHOGONAL是液晶材料的垂直介电常数,ε是平行介电常数的平行介电常数,dLC DELTA nLC在约0.4至0.5的范围内,其中DELTA nLC是 液晶材料的折射率。

    Reducing cross talk effects in electro-optical addressing structures
    12.
    发明授权
    Reducing cross talk effects in electro-optical addressing structures 失效
    降低电光寻址结构中的串扰效应

    公开(公告)号:US5852427A

    公开(公告)日:1998-12-22

    申请号:US134506

    申请日:1993-10-08

    申请人: Thomas S. Buzak

    发明人: Thomas S. Buzak

    摘要: A method and an apparatus reduce cross talk effects in electro-optical addressing structures. In a preferred embodiment, a flat panel liquid crystal display system (10) includes a layer (28) of frequency-sensitive liquid crystal material having a dielectric anisotropy that approaches zero for signal frequencies greater than a characteristic threshold frequency f.sub.th. The frequency-sensitive liquid crystal material is nonresponsive to components of signals with frequencies greater than the threshold frequency f.sub.th. A data driver (32) delivers inverted data signals (62) and conventional, noninverted data signals (64) to each of the multiple display elements (16) during successive first and second time intervals, respectively. As a result, the data driver generates cross talk having frequency components greater than the characteristic threshold frequency f.sub.th of the liquid crystal material. The liquid crystal material is not responsive to the high frequency cross talk, thereby substantially eliminating the cross talk effects.

    摘要翻译: 一种方法和装置减少电光寻址结构中的串扰效应。 在优选实施例中,平板液晶显示系统(10)包括对于大于特征阈值频率fth的信号频率接近零的介电各向异性的频敏液晶材料层(28)。 频率敏感的液晶材料对频率大于阈值频率fth的信号的分量无响应。 数据驱动器(32)分别在连续的第一和第二时间间隔期间将反相数据信号(62)和常规的非反相数据信号(64)传送到多个显示元件(16)中的每一个。 结果,数据驱动器产生频率分量大于液晶材料的特征阈值频率fth的串扰。 液晶材料不响应高频串扰,从而基本上消除了串扰效应。

    Bi-channel electrode configuration for an addressing structure using an
ionizable gaseous medium and method of operating it
    13.
    发明授权
    Bi-channel electrode configuration for an addressing structure using an ionizable gaseous medium and method of operating it 失效
    用于使用可离子化气体介质的寻址结构的双通道电极配置及其操作方法

    公开(公告)号:US5453660A

    公开(公告)日:1995-09-26

    申请号:US307500

    申请日:1994-09-15

    CPC分类号: G02F1/13334 G11C11/28

    摘要: An electrode structure (100) for an addressing structure using an ionizable gaseous medium has a substrate (102) and a cover (126). A plurality of channel-defining portions (116, 118, 120, 122, 124) each extend from the substrate to the cover; each pair of adjacent channel-defining portions defines a plasma discharge channel (129, 131, 133, 135, 137) for the ionizable gaseous medium. An electrode (104, 106, 108, 110, 112) extends through each channel-defining portion so that the electrode has a surface exposed to each of the channels defined in part by the channel-defining portion. Each of the channel defining portions or walls separates each electrode from the cover. An addressing structure using the electrode structure of the invention ionizes the gas in each channel by driving the electrodes of the pair of adjacent channel-defining portions that define the channel.

    摘要翻译: 用于使用可电离气体介质的寻址结构的电极结构(100)具有基底(102)和盖(126)。 多个通道限定部分(116,118,120,122,124)各自从基板延伸到盖子; 每对相邻的通道限定部分限定了用于可电离气态介质的等离子体放电通道(129,131,133,135,137)。 电极(104,106,108,110,112)延伸穿过每个通道限定部分,使得电极具有暴露于由通道限定部分部分限定的每个通道的表面。 每个通道限定部分或壁将每个电极与盖分开。 使用本发明的电极结构的寻址结构通过驱动限定通道的一对相邻通道限定部分的电极来电离每个通道中的气体。

    Flat panel apparatus for addressing optical data storage locations
    14.
    发明授权
    Flat panel apparatus for addressing optical data storage locations 失效
    用于寻址光学数据存储位置的平板设备

    公开(公告)号:US5036317A

    公开(公告)日:1991-07-30

    申请号:US234774

    申请日:1988-08-22

    申请人: Thomas S. Buzak

    发明人: Thomas S. Buzak

    摘要: A flat panel apparatus for and a method of addressing data storage locations (80) employs a row-scanning electron beam (76) to address simultaneously a row (120) of such storage locations and thereby store data in and read data out of them. The storage locations are defined by the overlapping areas of multiple column electrodes (62) extending in a common direction on a first substrate (82) and rows addressed by the electron beam and extending in a common direction on a second substrate (54). A layer of dielectric material (52) separate the first and the second substrates, which are positioned face-to-face and spaced-apart with the direction of the addressed rows transverse to that of the column electrodes. The column electrodes receive data drive signals. The addressing apparatus is configured so that for each storage location secondary electrons emitted by the electron beam striking the location function as an electrical switch that changes between a conducting state and a nonconducting state in response to the presence of the electron beam. The secondary electrons function to either store data in or read data out of the storage location. If the storage location includes a layer (52) of material having electro-optic properties and receives incident image-carrying light, the secondary electrons function to select and store image data across the layer and thereby provide a display system having gray scale luminance.

    摘要翻译: 用于寻址数据存储位置(80)的平板设备和方法采用行扫描电子束(76)同时寻址这些存储位置的行(120),从而将数据存储在其中并从中读出数据。 存储位置由在第一基板(82)上沿公共方向延伸的多列电极(62)和由电子束寻址并在第二基板(54)上沿公共方向延伸的行)的重叠区域限定。 一层电介质材料(52)将第一和第二基片分开,这些基板与所述列电极横向的寻址行的方向面对面且间隔开。 列电极接收数据驱动信号。 寻址装置被配置为使得对于每个存储位置,由电子束发射的二次电子发射到该位置,作为响应于电子束存在而在导通状态和非导通状态之间变化的电开关起作用。 二次电子用于将数据存储在存储位置或从存储位置读出数据。 如果存储位置包括具有电光特性的材料层(52)并且接收入射的图像载体光,则二次电子用于跨越层选择和存储图像数据,从而提供具有灰度级亮度的显示系统。

    Method of addressing display regions in an electron beam-addressed
liquid crystal light valve
    15.
    发明授权
    Method of addressing display regions in an electron beam-addressed liquid crystal light valve 失效
    在电子束寻址液晶光阀中寻址显示区域的方法

    公开(公告)号:US4884874A

    公开(公告)日:1989-12-05

    申请号:US219510

    申请日:1988-07-14

    IPC分类号: G02F1/133

    CPC分类号: G02F1/133348

    摘要: An electron beam addressed liquid crystal light modulator or "valve" (10) includes a liquid crystasl cell (40) having a target surface (45) which a writing electron beam (60a) and an erasing electron beam (60b) address to provide a display image. The writing electron beam and the erasing electron beam sequentially strike preselected locations on the target surface to cause an emission of secondary electrons and, thereby, develop an electrostatic potential at such preselected locations. A secondary electron collector electrode (66) positioned over and above the target surface collects in a uniform manner the secondary electrons emitted by all regions of the target surface. A collector electrode controller circuit (81) sequentially applied first and second potential differences between the target surface and the collector electrode in synchronism with the striking of the preselected locations by the respective writing and erasing beams. The first potential difference causes the collector electrode to collect a sufficient number of the secondary electrons to maintain the electrostatic potential at the preselected locations on the target surface. This causes the liquid crystal cell to transmit light in a first polarization sense. The second potential difference causes the collector electrode to collect a relatively small number of the secondary electrons. The remaining secondary electrons redistribute over the target surface and change the electrostatic potential at the preselected locations.

    摘要翻译: 电子束寻址的液晶光调制器或“阀”(10)包括具有写入电子束(60a)和擦除电子束(60b)地址的目标表面(45)的液晶单元(40),以提供 显示图像。 写入电子束和擦除电子束顺序地击打目标表面上的预选位置以引起二次电子的发射,从而在这种预选位置产生静电势。 位于目标表面上方和上方的二次电子收集电极(66)以均匀的方式收集由目标表面的所有区域发射的二次电子。 集电极电极控制器电路(81)通过相应的写入和擦除光束与预选位置的触发同步地顺序地施加目标表面和集电极之间的第一和第二电位差。 第一电位差导致集电极收集足够数量的二次电子以将静电电位保持在目标表面上的预选位置。 这使得液晶单元以第一偏振方向透射光。 第二电位差导致集电极收集相对较少数量的二次电子。 剩余的二次电子在目标表面上重新分布,并改变预选位置处的静电势。

    Field sequential liquid crystal display with enhanced brightness
    16.
    发明授权
    Field sequential liquid crystal display with enhanced brightness 失效
    场强顺序液晶显示,亮度提升

    公开(公告)号:US4611889A

    公开(公告)日:1986-09-16

    申请号:US596799

    申请日:1984-04-04

    申请人: Thomas S. Buzak

    发明人: Thomas S. Buzak

    摘要: An enchanced luminance field sequential color image display system having an image source for providing a sequence of monochrome images. The monochromatic light images are formed of first, second and third different spectral colors. A liquid crystal switching system having crossed color selective polarizers is used to transmit the second and third colors with a first direction of polarization and to transmit the first and third colors with an orthogonal direction of polarization. A liquid crystal retarder is used to rotate the direction of polarization of light incident from the crossed polarizers by ninety degrees when the retarder is in its OFF state and to transmit the light substantially unchanged when the retarder is in its ON state. The light is then coupled to an analyzing system which in one embodiment is a neutral polarizer that transmits either the second and third colors or the first and third colors, depending on the state of the liquid crystal retarder. In a second embodiment, the analyzing system is one or more color selective (pleochroic) polarizers that transmits both polarizations of the third color, while transmitting only one polarization of the first color or one polarization of the second color depending on the state of the retarder. By transmitting two of the three spectral colors in each of both directions of polarization through the retarder, a significant increase in display luminance is obtained.

    摘要翻译: 具有用于提供单色图像序列的图像源的加强亮度场顺序彩色图像显示系统。 单色光图像由第一,第二和第三不同的光谱颜色形成。 使用具有交叉色选择性偏振器的液晶切换系统以第一偏振方向透射第二和第三颜色,并且以正交的偏振方向透射第一和第三颜色。 当延迟器处于其关闭状态时,使用液晶延迟器将从正交偏振器入射的光的偏振方向旋转90度,并且当延迟器处于其接通状态时将光传播大致不变。 然后将光耦合到分析系统,其在一个实施例中是根据液晶延迟器的状态透射第二颜色或第三颜色或第一和第三颜色的中性偏振器。 在第二实施例中,分析系统是一个或多个颜色选择性(多色)偏振器,其透射第三颜色的两个极化,同时根据延迟器的状态仅透射第一颜色的一个偏振或第二颜色的一个偏振 。 通过通过延迟器透射两个偏振方向中的三个光谱颜色中的两个,可以获得显着亮度的显着增加。

    Electro-optic display system with improved viewing angle
    17.
    发明授权
    Electro-optic display system with improved viewing angle 失效
    具有改善视角的电光显示系统

    公开(公告)号:US4583825A

    公开(公告)日:1986-04-22

    申请号:US565442

    申请日:1983-12-27

    申请人: Thomas S. Buzak

    发明人: Thomas S. Buzak

    摘要: A method and an apparatus provide an optical switching system (10) which provides independent of viewing angle two system optical transmission states of substantially contaminant-free light. The system includes first and second light gates (12 and 12') of which each has associated therewith contaminant light intensity patterns (48 and 66) with points of local maxima (54, 56, 58, 60, 68, and 70) and local minima (62 and 72) in two system optical transmission states. The contaminant light intensity patterns are oriented so that the points of local maxima and minima of the contaminant light intensity patterns of one of the light gates generally align with the respective points of local minima and maxima of the contaminant light intensity patterns of the other light gate. The alignment of contaminant light intensity patterns blocks the transmission of contaminant light in two system optical transmission states, and thereby provides improved viewing angle performance.

    摘要翻译: 一种方法和装置提供了一种光学切换系统(10),其提供独立于视角的基本上无污染的光的两个系统光传输状态。 该系统包括第一和第二光栅(12和12'),其中每个具有与其中具有局部最大值点(54,56,58,60,68和70)以及局部的第一和第二光栅(12和12')相关联的污染物光强度图案(48和66) 最小(62和72)在两个系统光传输状态。 污染物光强度图案被定向为使得一个光门的污染物光强度图案的局部最大值和最小值的点通常与另一个光栅的污染物光强度图案的局部最小值和最大值的各个点对准 。 污染物光强图案的对准阻止了两种系统光传输状态下污染物光的传输,从而提供了改进的视角性能。

    Method of operating a plasma addressed liquid crystal (PALC) panel
    18.
    发明授权
    Method of operating a plasma addressed liquid crystal (PALC) panel 失效
    操作等离子体寻址液晶(PALC)面板的方法

    公开(公告)号:US06400345B1

    公开(公告)日:2002-06-04

    申请号:US09340540

    申请日:1999-06-28

    IPC分类号: G09G328

    摘要: A PALC panel is operated by increasing the voltage between the channel electrodes to a firing voltage to create a plasma in the channel, reducing the voltage between the channel electrodes to a sustaining voltage to sustain the plasma for an interval during which a selected drive voltage is applied to the data drive electrode to establish an electric field in the layer of electro-optic material, and reducing the voltage between the channel electrodes to a bias voltage, which is insufficient to sustain the plasma but provides an electric field having a component parallel to the cover sheet in the layer of electro-optic material.

    摘要翻译: 通过将通道电极之间的电压增加到点火电压以在通道中产生等离子体来操作PALC面板,将沟道电极之间的电压降低到维持电压,以在所选择的驱动电压为 施加到数据驱动电极以在电光材料层中建立电场,并且将沟道电极之间的电压降低到不足以维持等离子体的偏置电压,但是提供具有与 覆盖层在电光材料层中。

    Plasma addressed liquid crystal display panel with internal polarizer
    20.
    发明授权
    Plasma addressed liquid crystal display panel with internal polarizer 失效
    带有内部偏光片的等离子体寻址液晶显示面板

    公开(公告)号:US5694183A

    公开(公告)日:1997-12-02

    申请号:US803728

    申请日:1997-02-21

    CPC分类号: G02F1/13334 G02F1/133528

    摘要: A plasma addressed liquid crystal display panel comprises a channel substrate having plasma channels in its upper surface thereof and an upper substrate over the upper surface of the channel substrate. A first polarizer is disposed over the upper surface of the channel substrate and transmits only light that is polarized in a first state. An electro-optic layer extends over the first polarizer and has a first condition in which it transmits light that is polarized in the first state without changing the state of polarization and a second condition in which it converts light that is polarized in the first state to a second state of polarization that is orthogonal to the first state. A second polarizer is over the electro-optic layer and transmits only light that is polarized in the second state. When the electro-optic layer is in the first condition, the second polarizer blocks the light that is transmitted by the first polarizer, whereas when the electro-optic layer is in the second condition, the second polarizer passes the light that is transmitted by the first polarizer.

    摘要翻译: 等离子体寻址液晶显示面板包括在其上表面具有等离子体通道的通道基板和在通道基板的上表面上方的上基板。 第一偏振器设置在通道基板的上表面上方,并且仅透射在第一状态下被极化的光。 电光层在第一偏振器上方延伸,并且具有第一状态,其中透射在第一状态下被偏振而不改变偏振状态的光,以及第二状态,其中将将第一状态偏振的光转换为 与第一状态正交的第二极化状态。 第二偏振器在电光层之上,并且仅透射在第二状态下被极化的光。 当电光层处于第一状态时,第二偏振器阻挡由第一偏振器透射的光,而当电光层处于第二状态时,第二偏振器将由 第一偏振器。