公开(公告)号：US6115014A

公开(公告)日：2000-09-05

申请号：US576780

申请日：1995-12-21

申请人： Hisashi Aoki ,  Soichi Sato ,  Tetsushi Yoshida ,  Jiro Takei

发明人： Hisashi Aoki ,  Soichi Sato ,  Tetsushi Yoshida ,  Jiro Takei

IPC分类号： G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3607 ,  G09G3/3611 ,  G09G2300/0491 ,  G09G2310/0235 ,  G09G3/2059

摘要： One frame of a video signal is separated to a plurality of display frames. To display a color specified by the video signal by mixing display colors of a plurality of display frames, the video signal is converted to data indicative of a voltage to be applied to each pixel over the display frames by using a conversion table. A voltage corresponding to the converted data is applied to a birifringence control type liquid crystal display device to drive the liquid crystal display device multiple times in one frame period of the video signal. When the response speed of the liquid crystal is fast, a color obtained by mixing the display colors of a plurality of display frames is recognized by an observer. When the response speed of the liquid crystal is slow, a color corresponding to an average value of the voltages applied to a plurality of display frames is recognized by the observer. When the liquid crystal has an intermediate response speed, a color obtained by visually mixing a series of display colors displayed during the transition of the alignment state of the liquid crystal is recognized by the observer.

摘要翻译： 一帧视频信号被分离成多个显示帧。 为了通过混合多个显示帧的显示颜色来显示由视频信号指定的颜色，通过使用转换表将视频信号转换为指示要施加到显示帧上的每个像素的电压的数据。 将对应于转换数据的电压施加到双向控制型液晶显示装置，以在视频信号的一个帧周期内多次驱动液晶显示装置。 当液晶的响应速度快时，由观察者识别通过混合多个显示框的显示颜色而获得的颜色。 当液晶的响应速度慢时，与观察者识别对应于多个显示框的电压的平均值相对应的颜色。 当液晶具有中间响应速度时，通过视觉上混合在液晶的取向状态的转变期间显示的一系列显示颜色而获得的颜色被观察者识别。

公开(公告)号：US6014195A

公开(公告)日：2000-01-11

申请号：US709210

申请日：1996-08-29

申请人： Katsuhito Sakamoto ,  Zenta Kikuchi ,  Satoru Shimoda ,  Hisashi Aoki ,  Soichi Sato ,  Tetsushi Yoshida

发明人： Katsuhito Sakamoto ,  Zenta Kikuchi ,  Satoru Shimoda ,  Hisashi Aoki ,  Soichi Sato ,  Tetsushi Yoshida

IPC分类号： G02F1/1335 ,  G02F1/13363 ,  G02F1/139 ,  G09G3/36 ,  G02F1/1347

CPC分类号： G02F1/1393 ,  G02F1/133512 ,  G02F1/133553 ,  G02F1/13363 ,  G02F1/1396 ,  G02F2001/1398 ,  G02F2203/34 ,  G09G2300/0491 ,  G09G3/3607

摘要： A liquid crystal display device, for displaying pure white, has a first substrate having first electrodes formed thereon; a second substrate positioned to face the first substrate and having second electrodes formed thereon; a liquid crystal sealed between the first and second substrates; and first and second polarization plates arranged to sandwich the first and second substrates and having such polarization characteristics that when the first and second polarization plates are placed one on the other in such a way as to have substantially perpendicular transmission axes, a value acquired by dividing a transmittance of light with a wavelength of 500 nm by a transmittance of light with a wavelength of 440 nm becomes substantially smaller than 0.4. The first and second polarization plates have optical characteristics such that when the first and second polarization plates are placed one on the other in such a way as to have substantially parallel transmission axes, a value acquired by subtracting a transmittance of light with a wavelength of 640 nm from a transmittance of light with a wavelength of 460 nm is greater than -3%.

摘要翻译： 用于显示纯白色的液晶显示装置具有形成在其上的第一电极的第一基板; 第二基板，定位成面对所述第一基板并且具有形成在其上的第二电极; 密封在第一和第二基板之间的液晶; 以及第一和第二偏振板，被布置成夹住第一和第二基板并且具有这样的偏振特性，使得当第一和第二偏振板彼此以一定的方式放置成具有基本垂直的透射轴时，通过分割获得的值 通过波长为440nm的光的透射率，波长为500nm的光的透射率显着小于0.4。 第一和第二偏振板具有这样的光学特性，使得当第一和第二偏振片彼此放置成具有基本平行的透射轴时，通过减去波长为640的光的透射率获得的值 波长为460nm的光的透射率大于-3％。

公开(公告)号：US5583671A

公开(公告)日：1996-12-10

申请号：US147118

申请日：1993-11-02

申请人： Tetsushi Yoshida ,  Jiro Takei

发明人： Tetsushi Yoshida ,  Jiro Takei

IPC分类号： G02F1/1334 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1362 ,  G02F1/137 ,  G02F134/1137

CPC分类号： G02F1/1334 ,  G02F1/133512 ,  G02F1/13394 ,  G02F1/1362

摘要： A pair of transparent substrates are arranged to oppose each other and bonded to each other through a seal member. A polymer dispersed liquid crystal layer and spacers are provided between the pair of transparent substrates. A plurality of pixel electrodes respectively provided with TFTs are disposed in a matrix form on the counter surface of one substrate opposing the other substrate, and the spacers for regulating the gap between the substrates are fixed, through resin films, to remaining regions of the counter surface of one substrate obtained by excluding pixel regions corresponding to the pixel electrodes from the region inside the seal member. A black mask is formed on the remaining regions of the counter surface of the other transparent substrate, and a flat counter electrode opposing the plurality of pixel electrodes is formed on the black mask. The polymer dispersed liquid crystal display device is obtained by injecting, into a cell in a vacuum state, a solution mixture of a photo-setting polymeric material and a liquid crystal material that are mixed in a formulating proportion not less than a solubility at a normal temperature and a normal pressure, increasing the temperature of the solution mixture to a temperature not less than the soluble limit temperature of the liquid crystal, and thereafter photo-setting the photo-setting polymeric material.

摘要翻译： 一对透明基板被布置成彼此相对并通过密封构件彼此结合。 在一对透明基板之间设置聚合物分散液晶层和间隔物。 分别设置有TFT的多个像素电极以矩阵形式设置在与另一个基板相对的一个基板的相对表面上，并且用于调节基板之间的间隙的间隔件通过树脂膜固定到计数器的剩余区域 通过从密封构件内的区域排除与像素电极对应的像素区域而获得的一个基板的表面。 在另一透明基板的相对表面的其余区域上形成黑色掩模，并且在黑色掩模上形成与多个像素电极相对的平面对置电极。 聚合物分散液晶显示装置是通过将真空状态的光固性聚合物材料和液晶材料的混合溶液以不低于正常情况下的溶解度的配制比例注入到电池中而获得的 温度和常压，将溶液混合物的温度升高至不低于液晶的可溶极限温度的温度，然后光固化光固性聚合物材料。

公开(公告)号：US5905552A

公开(公告)日：1999-05-18

申请号：US696784

申请日：1996-08-15

申请人： Tetsushi Yoshida ,  Jiro Takei

发明人： Tetsushi Yoshida ,  Jiro Takei

IPC分类号： G02F1/1334 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1362 ,  G02F1/137

CPC分类号： G02F1/1334 ,  G02F1/133512 ,  G02F1/13394 ,  G02F1/1362

摘要： A pair of transparent substrates are arranged to oppose each other and bonded to each other through a seal member. A polymer dispersed liquid crystal layer and spacers are provided between the pair of transparent substrates. A plurality of pixel electrodes respectively provided with TFTs are disposed in a matrix form on the counter surface of one substrate opposing the other substrate, and the spacers for regulating the gap between the substrates are fixed, through resin films, to remaining regions of the counter surface of one substrate obtained by excluding pixel regions corresponding to the pixel electrodes from the region inside the seal member. A black mask is formed on the remaining regions of the counter surface of the other transparent substrate, and a flat counter electrode opposing the plurality of pixel electrodes is formed on the black mask. The polymer dispersed liquid crystal display device is obtained by injecting, into a cell in a vacuum state, a solution mixture of a photo-setting polymeric material and a liquid crystal material that are mixed in a formulating proportion not less than a solubility at a normal temperature and a normal pressure, increasing the temperature of the solution mixture to a temperature not less than the soluble limit temperature of the liquid crystal, and thereafter photo-setting the photo-setting polymeric material.

摘要翻译： 一对透明基板被布置成彼此相对并通过密封构件彼此结合。 在一对透明基板之间设置聚合物分散液晶层和间隔物。 分别设置有TFT的多个像素电极以矩阵形式设置在与另一个基板相对的一个基板的相对表面上，并且用于调节基板之间的间隙的间隔件通过树脂膜固定到计数器的剩余区域 通过从密封构件内的区域排除与像素电极对应的像素区域而获得的一个基板的表面。 在另一透明基板的相对表面的其余区域上形成黑色掩模，并且在黑色掩模上形成与多个像素电极相对的平面对置电极。 聚合物分散液晶显示装置是通过将真空状态的光固性聚合物材料和液晶材料的混合溶液以不低于正常情况下的溶解度的配制比例注入到电池中而获得的 温度和常压，将溶液混合物的温度升高至不低于液晶的可溶极限温度的温度，然后光固化光固性聚合物材料。

公开(公告)号：US5680188A

公开(公告)日：1997-10-21

申请号：US594380

申请日：1996-01-30

申请人： Tetsushi Yoshida ,  Jiro Takei ,  Zenta Kikuchi

发明人： Tetsushi Yoshida ,  Jiro Takei ,  Zenta Kikuchi

IPC分类号： G02F1/133 ,  G02F1/1334 ,  G02F1/13357 ,  G09F9/00 ,  G02F1/1335 ,  C09K19/50

CPC分类号： G02F1/1334 ,  G02F1/133617

摘要： A polymer dispersed liquid crystal display device includes first and second substrates arranged to oppose each other, a polymer dispersed liquid crystal layer arranged between the first and second substrates, first electrodes arranged on the inner surface of the first substrate, a reflecting member arranged on the inner surface of the second substrate and designed to reflect light transmitted through the polymer dispersed liquid crystal layer, a coloring film for coloring light transmitted through the polymer dispersed liquid crystal to display a color image, and second electrodes arranged between the inner surface of the second substrate and the liquid crystal layer. At least a portion of each second electrode opposes a corresponding first electrode. A light coloring film is arranged on the reflecting member, contains a fluorescent material, and converts light transmitted through the polymer dispersed liquid crystal layer into light having the same color as that of fluorescent light emitted from the fluorescent material.

摘要翻译： 聚合物分散液晶显示装置包括彼此相对布置的第一和第二基板，布置在第一和第二基板之间的聚合物分散液晶层，布置在第一基板的内表面上的第一电极，布置在第一和第二基板的内表面上的反射部件 设计成反射透过聚合物分散液晶层的光，将透过聚合物分散液晶着色的着色膜显示彩色图像的着色膜，以及布置在第二基板的内表面之间的第二电极 基板和液晶层。 每个第二电极的至少一部分与相应的第一电极相对。 在反射构件上设置着色光，含有荧光体，将透过聚合物分散液晶层的光转换成与荧光体发出的荧光相同的颜色的光。

公开(公告)号：US5629783A

公开(公告)日：1997-05-13

申请号：US317230

申请日：1994-10-03

申请人： Minoru Kanbara ,  Tetsushi Yoshida ,  Zenta Kikuchi ,  Jiro Takei

发明人： Minoru Kanbara ,  Tetsushi Yoshida ,  Zenta Kikuchi ,  Jiro Takei

IPC分类号： G02F1/1334 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13 ,  G02F1/135

CPC分类号： G02F1/133617 ,  G02F1/1334 ,  G02F1/133553

摘要： A liquid crystal device includes a TFT or active element substrate on which TFTs and pixel electrodes are arranged in the form of a matrix, a counter substrate having a counter electrode formed thereon and arranged to oppose the active element substrate, a polymer dispersed liquid crystal layer arranged between the active element substrate and the counter substrate and having a polymer resin and a liquid crystal which are dispersed, and a fluorescent film arranged on the pixel electrode. The device displays an image by controlling scattering, absorption, and transmission of light passing through the polymer dispersed liquid crystal layer. The phosphor film converts part of supplied light into fluorescent light having a predetermined wavelength and outputs colored light. Light used for a display is increased in intensity by the fluorescent light emitted from the phosphor film, thereby displaying a bright image.

摘要翻译： 液晶装置包括TFT或有源元件基板，TFT和有源元件基板以矩阵形式布置在TFT或有源元件基板上;对置基板，其上形成有相对电极并且布置成与有源元件基板相对;聚合物分散液晶层 布置在有源元件基板和对置基板之间并且具有分散的聚合物树脂和液晶，以及布置在像素电极上的荧光膜。 该装置通过控制通过聚合物分散液晶层的光的散射，吸收和透射来显示图像。 荧光体膜将供给的光的一部分转换为具有预定波长的荧光，并输出彩色光。 用于显示器的光由荧光膜发出的荧光强度增加，从而显示明亮的图像。

公开(公告)号：US5559615A

公开(公告)日：1996-09-24

申请号：US317242

申请日：1994-10-03

申请人： Jiro Takei ,  Tetsushi Yoshida ,  Zenta Kikuchi

发明人： Jiro Takei ,  Tetsushi Yoshida ,  Zenta Kikuchi

IPC分类号： G02F1/1334 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/13

CPC分类号： G02F1/1334 ,  G02F2001/13756

摘要： A polymer dispersed liquid crystal display device includes an active element substrate on which active elements and pixel electrodes are arranged in the form of a matrix, a counter substrate having a counter electrode formed on a surface, of the counter substrate, opposing the active element substrate, and a polymer dispersed liquid crystal film arranged between the active element substrate and the counter substrate and formed by dispersing a polymer resin and a cholesteric liquid crystal. The cholesteric liquid crystal is in a randomly aligned state to be twisted at a specific helical pitch in the absence of an electric field. When an electric field is applied across the pixel electrodes and the counter electrode, the cholesteric liquid crystal is aligned along the electric field, and the polymer dispersed liquid crystal film is set in a light-transmitting state, thereby setting a display in a bright state. When the application of the electric field is stopped, the cholesteric liquid crystal is restored, within a short time, to a randomly twisted/aligned state by the restoring force of the cholesteric liquid crystal, and the polymer dispersed liquid crystal film is set in a light-scattering state, thereby setting a display in a dark state. When a dichroic dye is added to the cholesteric liquid crystal, the dark display becomes dark, thereby increasing the contrast of an image.

摘要翻译： 聚合物分散液晶显示装置包括有源元件基板，活性元件和像素电极以矩阵的形式布置在其上，相对基板的对置基板具有形成在对向基板的表面上的对置基板，与该有源元件基板相对 以及配置在有源元件基板和对置基板之间并通过分散聚合物树脂和胆甾型液晶形成的聚合物分散液晶膜。 胆甾醇型液晶处于随机取向的状态，在不存在电场的情况下以特定螺旋间距扭曲。 当跨越像素电极和对电极施加电场时，胆甾型液晶沿着电场排列，并且聚合物分散的液晶膜被设置在透光状态，从而将显示设置为亮状态 。 当电场的施加停止时，胆甾型液晶在短时间内通过胆甾醇型液晶的恢复力而恢复到随机扭转/排列状态，并将聚合物分散的液晶膜设置在 光散射状态，从而将显示设置为暗状态。 当将二色性染料加入到胆甾型液晶中时，暗显示变暗，从而增加图像的对比度。

公开(公告)号：US6124909A

公开(公告)日：2000-09-26

申请号：US994835

申请日：1997-12-19

申请人： Takashi Miyashita ,  Tetsushi Yoshida ,  Hidetoshi Akao ,  Tsuyoshi Toyoshima ,  Jiro Takei

发明人： Takashi Miyashita ,  Tetsushi Yoshida ,  Hidetoshi Akao ,  Tsuyoshi Toyoshima ,  Jiro Takei

IPC分类号： G02F1/1335

CPC分类号： G02F1/133514

摘要： In a liquid crystal display device using color filters, the area of each of color filters arranged on the inner surface of one of substrates in correspondence with the pixel areas is set to be smaller than that of each pixel area to form non-colored light exit areas, and color pixels are displayed with non-colored light which is not transmitted through the color filters and colored light which is transmitted through the color filters. Since high-luminance color pixels are displayed with these colored light and non-colored light, the screen can be made brighter. The liquid crystal display device further includes a reflecting member for reflecting external light incident from the front side of the device and transmitted through the liquid crystal layer toward the front side. In addition, in the liquid crystal display device, reflecting films for reflecting light incident from the front side of the device toward the front side are arranged on the inner surface of the front-side substrate in correspondence with the areas between the respective pixel areas, thereby making the portions between the respective pixel areas bright and further increasing the overall brightness of the screen.

摘要翻译： 在使用滤色器的液晶显示装置中，将与像素区域对应地配置在一个基板的内表面上的各滤色器的面积设定为小于各像素区域的面积，形成无色光出射 区域和彩色像素以不透过滤色器的非彩色光和通过滤色器透射的彩色光显示。 由于利用这些彩色光和非彩色光显示高亮度彩色像素，因此可以使屏幕变亮。 液晶显示装置还包括反射构件，用于反射从装置的前侧入射的外部光并透过液晶层朝向前侧。 此外，在液晶显示装置中，对应于各像素区域之间的区域，在前侧基板的内表面上配置用于将从装置的前侧入射的光反射到前侧的反射膜， 从而使各个像素区域之间的部分变亮，并进一步增加屏幕的整体亮度。

公开(公告)号：US5377028A

公开(公告)日：1994-12-27

申请号：US178442

申请日：1994-01-06

申请人： Tetsushi Yoshida ,  Toshiomi Ono ,  Jiro Takei

发明人： Tetsushi Yoshida ,  Toshiomi Ono ,  Jiro Takei

IPC分类号： C09K19/02 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/139 ,  G02F1/133 ,  G02F1/13 ,  G02F1/1335

CPC分类号： C09K19/0208 ,  G02F1/1397 ,  G02F1/13363 ,  G02F1/13471 ,  G02F2413/15

摘要： A liquid crystal display device includes a pair of substrates facing each, first and second electrodes formed on each inner surface of the substrates and arranged so that they are crossed and face each other, first and second aligning films covering each inner surface of the substrates and said first and second electrodes and provided with an aligning treatment in a direction respectively, and a liquid crystal member sealed between the substrates by a seal layer. The liquid crystal layer is twistingly aligned by the aligning force of said first and second aligning films at an angle of approx. 230.degree. to 250.degree., and has a positive dielectric anisotropy. The liquid crystal layer includes a liquid crystal member having a dielectric constant ratio .DELTA..epsilon./.epsilon..perp. defined as a ratio of the dielectric anisotropy .DELTA..epsilon. and the dielectric constant .epsilon..perp. with the direction orthogonal to the liquid crystal molecule axis of 2 or less, and a elastic constant ratio K.sub.33 /K.sub.11 defined as a ratio of a bent elastic constant K.sub.33 to a splay elastic constant K.sub.11 of 1.75 or more.

摘要翻译： 一种液晶显示装置，包括：一对基板，面对各自的第一和第二电极，形成在基板的每个内表面上并且布置成使得它们交叉并面对彼此;第一和第二对准膜覆盖基板的每个内表面;以及 所述第一和第二电极分别在一个方向上设置对准处理，以及通过密封层密封在所述基板之间的液晶部件。 液晶层通过所述第一和第二取向膜的对准力以大约的角度被扭曲地对准。 230°至250°，具有正的介电各向异性。 液晶层包括具有介电常数比DELTAε/ε正交值的液晶部件，其定义为介电各向异性DELTAε和介电常数ε正交值与正交于液晶分子轴线的方向的比率为2或更小的比率， 以及弹性常数比K33 / K11，其定义为弯曲弹性常数K33与喷射弹性常数K11的比值为1.75以上。

公开(公告)号：US6057817A

公开(公告)日：2000-05-02

申请号：US990789

申请日：1997-12-15

申请人： Toshiomi Ono ,  Soichi Sato ,  Tetsushi Yoshida ,  Toshihiro Mannoji

发明人： Toshiomi Ono ,  Soichi Sato ,  Tetsushi Yoshida ,  Toshihiro Mannoji

IPC分类号： G09G3/36

CPC分类号： G09G3/3629 ,  G09G2300/0486 ,  G09G2300/0491 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2320/0247

摘要： A liquid crystal cell includes scanning and signal electrodes, and a bistable nematic liquid crystal material sealed therein. The material has liquid crystal molecules alignable in first and second metastable aligned states by selective application of twist select voltages smaller than a reset voltage after application of the reset voltage. A tilt angle of the liquid crystal molecules is controlled in the first and second metastable aligned states in accordance with an effective value of a voltage applied between the opposing electrodes. A row driver, in accordance with display data, supplies a reset potential for applying the reset voltage between the electrodes, and a write-period voltage for designating a period for applying a voltage with an effective value according to the display data between the electrodes, to scanning electrodes. A data driver, in accordance with the display data, supplies a metastable-aligned-state selecting voltage for selectively applying a first metastable-aligned-state selecting voltage and a second metastable-aligned-state selecting voltage between the electrodes, and a write voltage corresponding to the voltage with the effective value according to the display data, to the signal electrodes in synchronism with the reset voltage and said write-period voltage.

摘要翻译： 液晶单元包括扫描信号电极和密封在其中的双稳态向列型液晶材料。 通过在施加复位电压之后通过选择性地施加小于复位电压的扭转选择电压，该材料具有可在第一和第二亚稳对准状态下对准的液晶分子。 根据施加在相对电极之间的电压的有效值，液晶分子的倾斜角度被控制在第一和第二亚稳取向状态。 根据显示数据的行驱动器提供用于施加电极之间的复位电压的复位电位和用于指定用于根据电极之间的显示数据施加具有有效值的电压的周期的写周期电压， 到扫描电极。 根据显示数据的数据驱动器提供亚稳对准状态选择电压，用于选择性地施加电极之间的第一亚稳对准状态选择电压和第二亚稳对准状态选择电压，并且写入电压 对应于具有根据显示数据的有效值的电压，与复位电压和所述写周期电压同步的信号电极。