公开(公告)号：US07256847B2

公开(公告)日：2007-08-14

申请号：US10250650

申请日：2002-11-11

Applicant: Keiji Kashima

Inventor： Keiji Kashima

IPC: G02F1/1335

CPC classification number: G02F1/133555 ,  G02F2201/343 ,  G02F2203/09

Abstract: In view of the above problems of the prior art, the present invention has been made, and an object of the present invention is to provide a board, which is free from coloring, has high color tone quality, can realize a bright display screen, and imposes no significant restriction on the provision of an electric circuit, and a display device comprising the board, and further provides a liquid crystal display board, which is excellent in color contrast between transmission display and reflection display, and a semi-transmission color liquid crystal display device comprising the liquid crystal display board. A board according to the invention comprises a light transparent substrate and a cholesteric layer provided on the substrate and provided with an optical window of a predetermined pattern.

Abstract translation: 鉴于现有技术的上述问题，本发明的目的在于提供一种不着色的具有高色调的电路板，能够实现明亮的显示屏， 并且对电路的提供没有明显的限制，以及包括该板的显示装置，并且还提供了一种液晶显示板，其在透射显示和反射显示之间的色彩对比度优异，并且还提供了半透射彩色液体 包括液晶显示板的晶体显示装置。 根据本发明的板包括透光基板和设置在基板上并具有预定图案的光学窗口的胆甾醇层。

公开(公告)号：US07173679B2

公开(公告)日：2007-02-06

申请号：US10523621

申请日：2003-07-22

Applicant: Ciska Doornkamp

Inventor： Ciska Doornkamp

IPC: G02F1/1335

CPC classification number: G02F1/133555 ,  G02F2201/343

Abstract: This invention relates to a transflective liquid crystal display device, having a plurality of pixels (1), each comprising a liquid crystal layer (2) being sandwiched between a front and a back substrate (4, 5), a back light (10), a semi-transparent reflective element (7), being arranged between the back substrate (5) and the back light (5), a front polarizer (6), and a driving arrangement (3) for controlling optical properties of the liquid crystal layer (2), whereby the pixel is subdivided into a reflective pixel part (1a) and a transmissive pixel part (1b). According to the invention, a cholesteric layer composition (11, 12) is arranged between said liquid crystal layer (2) and the back substrate (5), said cholesteric layer composition comprising; in said reflective pixel part (1a), a first cholesteric layer composition part (11) for reflecting a desired primary pixel color, and in said transmissive pixel part (1b) a second cholesteric layer composition part (12) for reflecting the remaining primary colors, other than said desired primary pixel color.

Abstract translation: 本发明涉及一种半透射型液晶显示装置，具有多个像素（1），每个像素（1）包括夹在前基板和后基板（4,5）之间的液晶层（2），背光源（10） ，设置在背面基板（5）和背面光（5）之间的半透明反射元件（7），前偏光片（6）和驱动装置（3），用于控制液晶的光学特性 层（2），由此将像素细分为反射像素部分（1a）和透射像素部分（1b）。 根据本发明，胆甾醇层组合物（11,12）布置在所述液晶层（2）和背面基板（5）之间，所述胆甾醇层组合物包括： 在所述反射像素部分（1a）中，用于反射所需原色像素颜色的第一胆甾型层合成部分（11），并且在所述透射像素部分（1b）中，用于反射剩余的第二胆甾醇层组合物部分 原色，除了所需要的主像素颜色。

公开(公告)号：US20070024950A1

公开(公告)日：2007-02-01

申请号：US10596871

申请日：2005-01-05

Applicant: Nynke Verhaegh ,  Dirk De Boer ,  Lucas Schlangen ,  Bas Van Der Heijden ,  Mark Johnson

Inventor： Nynke Verhaegh ,  Dirk De Boer ,  Lucas Schlangen ,  Bas Van Der Heijden ,  Mark Johnson

IPC: G02B26/00

CPC classification number: G02F1/172 ,  G02F1/13718 ,  G02F2001/134381 ,  G02F2201/343

Abstract: The invention relates to an electro-optical cell (1) comprising a first (2) and a second (3) support member, an electro-optical medium (5) between the support members and an electrode arrangement (11, 12) on the support members such that an electric field can be applied, in the electro-optical medium, perpendicular to the support members, aligned with the support members or at an oblique angle (7) with respect to the support members. The electro-optical cell further comprises layers (14) of material with different dielectric constant between the support members in order to reduce the inhomogeneity of the electric field lines in the electro-optical medium. By having a layer of cholesteric liquid crystals between the support members, the electro-optical cell will function as a colour filter for varying applied fields. By introducing a particle suspension in a medium between the support members, an electro-optical cell is created that can be switched between a transmissive, reflective and partly deflective state.

Abstract translation: 本发明涉及一种包括第一（2）和第二（3）支撑构件的电光学电池（1），在支撑构件之间的电光介质（5）和电极装置（11,12） 支撑构件，使得可以在电光介质中垂直于支撑构件施加电场，与支撑构件对准或者相对于支撑构件以倾斜角度（7）施加电场。 电光电池还包括在支撑构件之间具有不同介电常数的材料层（14），以便减少电光介质中电场线的不均匀性。 通过在支撑构件之间具有胆甾型液晶层，电光单元将用作用于改变施加场的滤色器。 通过在支撑构件之间的介质中引入颗粒悬浮液，产生可以在透射，反射和部分偏转状态之间切换的电光单元。

公开(公告)号：US20060274238A1

公开(公告)日：2006-12-07

申请号：US11420903

申请日：2006-05-30

Applicant: Young-Chol Yang

Inventor： Young-Chol Yang

IPC: G02F1/1335

CPC classification number: G02F1/133555 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2201/343 ,  G02F2203/06

Abstract: A phase-invariant layer, which is formed at areas that are not transmission areas, forces light entering the reflection areas of a transflective LCD from a backlight unit to move into transmission areas by reflection, so that the amount of light used in a transmission mode is increased. In this way, light utilization efficiency and display luminance of the LCD are improved.

Abstract translation: 在不是透射区域的区域处形成的相位不变层迫使从背光单元进入透反射LCD的反射区域的光通过反射而移动到透射区域，使得在透射模式中使用的光量 增加了。 以这种方式，提高了LCD的光利用效率和显示亮度。

公开(公告)号：US20060170847A1

公开(公告)日：2006-08-03

申请号：US11393853

申请日：2006-03-31

Applicant: Tsuyoshi Maeda ,  Kimitaka Kamijo ,  Kinya Ozawa ,  Hitoshi Tsuchiya

Inventor： Tsuyoshi Maeda ,  Kimitaka Kamijo ,  Kinya Ozawa ,  Hitoshi Tsuchiya

IPC: G02F1/1335

CPC classification number: G02F1/133553 ,  G02B5/3016 ,  G02F2201/343

Abstract: The invention provides a thin reflective plate having cholesteric liquid crystal that can prevent or reduce a decrease of reflection efficiency. A reflective plate includes a cholesteric liquid crystal layer, and the cholesteric liquid crystal layer includes a plurality of regions in which the helical axes of the cholesteric liquid crystal are aligned in different directions in the plane of a substrate, and therefore, the regions can reflect color light components having different wavelengths. Consequently, the cholesteric liquid crystal layer can reflect light formed of light components of different colors (for example, white light) as a whole. When the reflective plate is applied to a reflective liquid crystal display device or the like, it is possible to appropriately reflect white light for display.

公开(公告)号：US07079207B2

公开(公告)日：2006-07-18

申请号：US10288235

申请日：2002-11-04

Applicant: Keiji Kashima

Inventor： Keiji Kashima

IPC: G02F1/1335

CPC classification number: G02F1/133514 ,  G02F1/133533 ,  G02F2201/343

Abstract: A liquid crystal display improves light utilization efficiency with a cholesteric liquid crystal filter to ensure color density enough to enable both transmission and reflection type displays. The display comprises a liquid crystal display device comprising a liquid crystal layer between transparent substrates, a voltage applying electrode, a driving circuit, an illumination light source, and a pair of circularly polarizing plates. A cholesteric liquid crystal filter semitransparent to red, green and blue wavelength ranges is located on the illumination light-directing side. The liquid crystal layer viewing side has a cholesteric liquid crystal color filter array capable of transmitting red, green and blue wavelength ranges and reflecting light in other wavelength ranges depending on a pixel arrangement, and absorption type color filter array is located in alignment therewith and capable of transmitting only red, green and blue wavelength ranges and absorbing light in other wavelengths.

Abstract translation: 液晶显示器利用胆甾醇型液晶滤光片提高光利用效率，以确保足够的色彩浓度以实现透射和反射型显示。 显示器包括液晶显示装置，其包括透明基板之间的液晶层，施加电压的电极，驱动电路，照明光源和一对圆偏振片。 红色，绿色和蓝色波长范围半透明的胆甾型液晶滤光器位于照明光导侧。 液晶层观看侧具有能够透过红色，绿色和蓝色波长范围并根据像素排列反射其它波长范围内的光的胆甾醇型液晶滤色器阵列，并且吸收型滤色器阵列与其对准并且具有能力 仅传输红色，绿色和蓝色波长范围并吸收其他波长的光。

公开(公告)号：US07068344B2

公开(公告)日：2006-06-27

申请号：US10373126

申请日：2003-02-24

Applicant: Richard J. Pokorny ,  Marc D. Radcliffe ,  Steven D. Solomonson ,  Terence D. Spawn

Inventor： Richard J. Pokorny ,  Marc D. Radcliffe ,  Steven D. Solomonson ,  Terence D. Spawn

IPC: G02F1/1335 ,  C09K19/02

CPC classification number: G02B5/3016 ,  G02F1/133536 ,  G02F2201/343

Abstract: The method of making an optical body includes coating a mixture that includes a plurality of cholesteric liquid crystal compositions, and a solvent on a substrate. Each cholesteric liquid crystal composition is different. A plurality of layers is formed on the substrate. Each layer includes a majority of one of the cholesteric liquid crystal compositions.

Abstract translation: 制造光学体的方法包括将包含多个胆甾醇型液晶组合物的混合物和溶剂涂布在基板上。 每个胆固醇液晶组合物不同。 在基板上形成多个层。 每个层包括胆甾型液晶组合物中的大部分。

公开(公告)号：US06906764B2

公开(公告)日：2005-06-14

申请号：US10277868

申请日：2002-10-23

Applicant: Keiji Kashima ,  Yukihiro Toyota ,  Masanori Umeya ,  Mariko Goto

Inventor： Keiji Kashima ,  Yukihiro Toyota ,  Masanori Umeya ,  Mariko Goto

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/13

CPC classification number: G02B5/3016 ,  G02F1/133536 ,  G02F2201/343

Abstract: A polarized light extraction optical element is formed by a light-transmitting base material and a polarization separation layer laminated thereonto, this polarization separation layer being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one of the right and left circularly polarized light components is reflected with a reflectivity smaller than the maximum reflectivity.

Abstract translation: 偏振光提取光学元件由透光基材和层压在其上的偏振分离层形成，该偏振分离层是由胆甾型液晶制成的液晶层。 液晶层的厚度小于获得最大反射率所需的厚度，使得右和左圆偏振光分量中的一个的一部分以小于最大反射率的反射率反射。

公开(公告)号：US06894821B2

公开(公告)日：2005-05-17

申请号：US10281582

申请日：2002-10-28

Applicant: Keith M. Kotchick

Inventor： Keith M. Kotchick

IPC: G02B5/02 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363 ,  H01L51/50 ,  G02F1/03

CPC classification number: G02F1/13362 ,  G02F1/133536 ,  G02F2201/343 ,  G02F2203/09

Abstract: Display apparatuses are shown capable of displaying information in a reflective mode using only ambient light and in a transmissive mode using a light source. In one embodiment, the display apparatus includes a reflecting polarizer disposed between a light modulating layer and an isotropic light cavity. The light cavity reflects incident light with a first degree of depolarization. The reflecting polarizer reflects light with a second degree of depolarization for at least one polarization that is greater than the first degree of depolarization. In another embodiment of the display apparatus, a microstructured film is included above a light cavity and below a light modulating system where the microstructured film includes sawtooth formations having at least a tilted surface. In another embodiment of a dual-mode display device, the display includes a cholesteric reflecting polarizer disposed between a light modulating layer and a light cavity where the light cavity causes a polarization phase shift upon reflectance.

Abstract translation: 示出了能够仅使用环境光并且在使用光源的透射模式中以反射模式显示信息的显示装置。 在一个实施例中，显示装置包括设置在光调制层和各向同性光腔之间的反射偏振器。 光腔以第一度去极化反射入射光。 反射偏振器对具有大于第一去极化程度的至少一个偏振的第二度去极化反射光。 在显示装置的另一实施例中，微结构化膜包括在光腔之上并位于光调制系统之下，其中微结构化膜包括具有至少倾斜表面的锯齿形结构。 在双模显示装置的另一实施例中，显示器包括设置在光调制层和光腔之间的胆甾型反射偏振器，其中光腔在反射率下引起偏振相移。

公开(公告)号：US20040263732A1

公开(公告)日：2004-12-30

申请号：US10493631

申请日：2004-04-23

Inventor： Funfschilling Jurg

IPC: G02F001/1335

CPC classification number: G02F1/13473 ,  G02F2001/133638 ,  G02F2201/343

Abstract: The liquid crystal switchable color filter switches between three color bands and is preferably used for time-sequential color devices, as for example projection devices, direct view displays and video cameras. The color filter employs circularly polarizing selective reflection bands of at least four cholesteric filters (89, 91, 93, 95) together with three liquid crystal switches (81, 83, 85) and related retarder layers. Between the first and the second as well as between the third and the fourth cholesteric filter an additional half-wave plate (111, 113) is provided, which makes it possible to use cholesteric filters having all the same handedness. Furthermore, for the blocking state of a color band the optic axis of the corresponding liquid crystal switch is parallel or perpendicular to the polarization direction. This concept simplifies production and still exhibits excellent properties for the color switch. Moreover, it advantageously allows overlapping color transmission bands thus improving the light efficiency.

Abstract translation: 液晶可切换彩色滤光片在三个色带之间切换，并且优选用于时序彩色装置，例如投影装置，直视图和摄像机。 滤色器与三个液晶开关（81,83,85）和相关的延迟器层一起使用至少四个胆甾醇滤光器（89,91,93,95）的圆偏振选择反射带。 在第一和第二之间以及在第三和第四胆甾醇型滤光器之间，提供了附加的半波片（111,113），这使得可以使用具有相同的手感度的胆甾型滤光器。 此外，对于色带的阻挡状态，相应液晶开关的光轴平行或垂直于偏振方向。 该概念简化了生产，并且对于颜色开关仍然表现出优异的性能。 此外，其有利地允许重叠的彩色传输频带，从而提高光效率。