公开(公告)号：EP1886171A2

公开(公告)日：2008-02-13

申请号：EP06710981.9

申请日：2006-02-28

Applicant: Stichting Dutch Polymer Institute

Inventor： ESCUTI, Michael, J. ,  SANCHEZ, Carlos ,  BASTIAANSEN, Cornelis, W., M. ,  BROER, Dirk, J.

IPC: G02B5/30 ,  G02B5/18 ,  G02B5/32

CPC classification number: G02B27/283 ,  G02B5/1833 ,  G02B5/3016 ,  G02B5/32 ,  G02F1/1323 ,  G02F1/13342 ,  G02F1/133788 ,  G02F2201/305 ,  G02F2203/07

Abstract: A polarization grating comprising a polarization sensitive photo-alignment layer (2) and a liquid crystal composition (3) arranged on said photo-alignment layer is provided. An alignment pattern, corresponding to the polarization pattern of a hologram, is recorded in the photo-alignment layer, and the liquid crystal composition is aligned on the photo-alignment layer. As the origin for the alignment of the liquid crystal composition is a polarization hologram recorded in a photo-alignment layer, an essentially defect-free pattern can be obtained with this approach.

公开(公告)号：EP1852730A1

公开(公告)日：2007-11-07

申请号：EP06731399.9

申请日：2006-04-07

Applicant: Rohm, Co., Ltd.

Inventor： FUJIMORI, Yoshikazu, c/o Rohm Co., Ltd.

IPC: G02F1/03

CPC classification number: G02F1/21 ,  G02F1/0311 ,  G02F1/0316 ,  G02F2001/213 ,  G02F2201/124 ,  G02F2201/305

Abstract: A light modulation device that improves utilization efficiency of light is provided. The light modulation device (10) includes a light emitter (22), a Fabry-Perot type of resonator (16), and a controller (12) for applying a control voltage to the resonator (16). The resonator (16) includes a light modulating film (34) in which refractive index changes in accordance with an applied electric field, and comb-shaped electrodes (35,36) for applying the electrical field to the light modulating film (34). The light emitted from the light emitter (22) is incident to a light-incident plane, the light being substantially perpendicular to a direction of the electrical field applied to the light modulating film (34), and inclined from a direction normal to the light-incident plane.

Abstract translation: 提供了提高光的利用效率的光调制装置。 光调制装置（10）包括光发射器（22），法布里 - 珀罗型谐振器（16）和用于向谐振器（16）施加控制电压的控制器（12）。 谐振器（16）包括其中折射率根据所施加的电场而变化的光调制膜（34）和用于向光调制膜（34）施加电场的梳状电极（35,36）。 从光发射器（22）发射的光入射到光入射平面，该光基本上垂直于施加到光调制膜（34）的电场的方向，并且从垂直于光的方向倾斜 自行车

公开(公告)号：EP1211553B1

公开(公告)日：2006-12-27

申请号：EP01125612.0

申请日：2001-10-26

Applicant: Heidelberger Druckmaschinen Aktiengesellschaft

Inventor： Fischer, Jörg-Achim ,  Gebhardt, Axel ,  Ressel, Peter

IPC: G02F1/29

CPC classification number: G02F1/292 ,  G02F2201/16 ,  G02F2201/305 ,  G02F2203/06 ,  G02F2203/48

公开(公告)号：EP1549995A1

公开(公告)日：2005-07-06

申请号：EP03757572.7

申请日：2003-10-09

Applicant: Arsenault, Andre ,  Miguez, Hernan ,  Ozin, Geoffrey Alan ,  Manners, Ian

Inventor： Arsenault, Andre ,  Miguez, Hernan ,  Ozin, Geoffrey Alan ,  Manners, Ian

IPC: G02F1/01

CPC classification number: B82Y20/00 ,  C09K2019/0496 ,  G02B6/1225 ,  G02F1/01 ,  G02F1/19 ,  G02F1/21 ,  G02F2201/305 ,  G02F2201/346 ,  G02F2202/022 ,  G02F2202/32 ,  G02F2203/055 ,  Y10T428/1023

Abstract: The present invention discloses a widely wavelength tunable polychrome colloidal photonic crystal device whose optical Bragg diffraction stop bands and higher energy bands wavelength, width and intensity can be tuned in a continuous and fine, rapid and reversible, reproducible and predictable fashion and over a broad spectral range by a controlled expansion or contraction of the colloidal photonic lattice dimension, effected by a predetermined change in the electronic configuration of the composite material. In its preferred embodiment, the material is a composite in the form of a film or a patterned film or shape of any dimension or array of shapes of any dimension comprised of an organized array of microspheres in a matrix of a cross-linked metallopolymer network with a continuously variable redox state of charge and fluid content. The chemo-mechanical and electro-mechanical optical response of the colloidal photonic crystal-metallopolymer gel is exceptionally fast and reversible, attaining its fully swollen state from the dry shrunken state and vice versa on a sub-second time-scale. These composite materials can be inverted by removal of the constituent microspheres from the aforementioned colloidal photonic crystal metallopolymer-gel network to create a macroporous metallopolymer-gel network inverse colloidal photonic crystal film or patterned film or shape of any dimension optical Bragg diffraction stop bands and higher energy bands wavelength, width and intensity can be redox tuned in a continuous and fine, rapid and reversible, reproducible and predictable fashion and over a broad spectral range by a controlled expansion or contraction of the colloidal photonic lattice dimensions.

公开(公告)号：EP0757806B1

公开(公告)日：2004-04-28

申请号：EP96901943.9

申请日：1996-02-27

Applicant: Koninklijke Philips Electronics N.V.

Inventor： HIKMET, Rifat, Ata, Mustafa

IPC: G02F1/1337

CPC classification number: G02F1/29 ,  G02F1/01 ,  G02F1/141 ,  G02F2201/305

Abstract: Switchable electro-optic medium (2) between two substrates (3, 4) at least one of which carries a grating structure (7, 8) at the side of the electro-optic medium, which grating structure has refractive indices which are substantially identical to those of the medium in the non-isotropic state. In the isotropic state diffraction occurs at the grating structure due to a difference in refractive index so that the central beam (11) decreases in intensity. Based on this principle, light shutters for, for example projection displays but also beam splitters, colour selectors and beam deflectors may be realized.

公开(公告)号：EP0972289B1

公开(公告)日：2004-03-24

申请号：EP98914401.9

申请日：1998-04-01

Applicant: Hong, Chin-Yih Rex ,  Horng, Herng-Er ,  Yang, Hong-Chang ,  Yeung, Wai-Bong

Inventor： Hong, Chin-Yih Rex ,  Horng, Herng-Er ,  Yang, Hong-Chang ,  Yeung, Wai-Bong

IPC: H01F1/44 ,  G02F1/09

CPC classification number: H01F1/44 ,  G02F1/09 ,  G02F1/23 ,  G02F2201/305

公开(公告)号：EP1195638A1

公开(公告)日：2002-04-10

申请号：EP01304577.8

申请日：2001-05-24

Applicant: ELOP ELECTRO-OPTICS INDUSTRIES LTD.

Inventor： Amitai, Yaakov

IPC: G02F1/31 ,  G02B5/32

CPC classification number: G02B5/32 ,  G02F1/31 ,  G02F2201/305 ,  Y10S359/90

Abstract: The invention provides an optical switching device, including a substrate (10) having at least one polarization-selective multiplexing grating ( H 3 ) at least one polarization-selective demultiplexing grating ( H 4 ) and a polarization rotation element (6) acting as dynamic ½ λ plate, optically interposed in the optical path between said multiplexing grating and said demultiplexing grating. The invention also provides a method for producing an holographic plate having a plurality of holographic elements.

Abstract translation: 本发明提供了一种光学切换装置，其包括具有至少一个偏振选择性复用光栅（H3），至少一个偏振选择性解复用光栅（H4）和偏振旋转元件（6）的衬底（10），其起动态1 /2λ 以光学方式插入在所述多路复用光栅和所述多路分用光栅之间的光路中。 本发明还提供了一种制造具有多个全息元件的全息印版的方法。

公开(公告)号：EP0977077A3

公开(公告)日：2001-04-04

申请号：EP99305990.6

申请日：1999-07-28

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Date, Munekazu, Nippon Telegraph & Telephone Corp. ,  Suyama, Shiro, Nippon Telegraph & Telephone Corp. ,  Kato, Kinya, Nippon Telegraph & Telephone Corp. ,  Uehira, Kazutake, Nippon Teleg. & Telephone Corp.

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/139 ,  G02F1/1343 ,  G02F1/13357 ,  G02F1/1334 ,  G02F1/1345

CPC classification number: G02F1/1334 ,  G02B6/005 ,  G02B6/0055 ,  G02B6/0078 ,  G02F1/13336 ,  G02F1/13342 ,  G02F1/133553 ,  G02F1/1336 ,  G02F1/133615 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/1393 ,  G02F2001/13347 ,  G02F2001/133616 ,  G02F2001/13712 ,  G02F2201/08 ,  G02F2201/124 ,  G02F2201/305 ,  G02F2203/023 ,  G02F2203/026

Abstract: An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide(230), a first electrode(231), and an optical control layer(232). The second stacked body includes a plurality of second electrodes(234), the reflection film(233) and a substrate (235). A plurality of third electrodes(237) are provided through the substrate(235). Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film(236) may be disposed between the reflection film and the second electrode.

公开(公告)号：EP0882252A1

公开(公告)日：1998-12-09

申请号：EP96937026.0

申请日：1996-10-18

Applicant: PHYSICAL OPTICS CORPORATION

Inventor： JANNSON, Tomasz, P. ,  AYE, Tin, M. ,  LERNER, Jeremy

IPC: G02F1 ,  G02B5 ,  G03H1

CPC classification number: G02F1/133504 ,  G02B5/32 ,  G02F1/133371 ,  G02F2001/133565 ,  G02F2201/305 ,  G03H1/0244

Abstract: Systems and methods for shaping light from a liquid crystal display such that the field of view, including the horizontal and vertical extent, can be determined, in advance by the manufacturer. An LCD device includes a first substrate (10) having a first electrode (20); a light shaping holographic surface relief diffuser (30) connected to said first electrode and having a first orientation and a first refractive index; a liquid crystal (70) adjacent said holographic diffuser, an alignment layer (60) adjacent said liquid crystal and having a second orientation that is substantially orthogonal to said first orientation; and a second substrate (10) having a second electrode (80) connected to said alignment layer, the liquid crystal having a second refractive index that is substantially equal to the first refractive index in the absence of a liquid crystal driving voltage, and varies as a function of such driving voltage.

公开(公告)号：EP0846282A1

公开(公告)日：1998-06-10

申请号：EP96932162.0

申请日：1996-08-26

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： ALVELDA, Phillip ,  KNIGHT, Thomas, F., Jr.

IPC: G02B27 ,  G02F1

CPC classification number: G02F1/133621 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132 ,  G02B2027/0154 ,  G02B2027/0178 ,  G02F1/136 ,  G02F1/136277 ,  G02F2201/305 ,  G02F2203/34

Abstract: The present invention provides a visual display including a high resolution miniature display compatible with VLSI technology and an optical system such as an optical magnifier used to enlarge the images display on the miniature display to be visible to the naked eye. The miniature display includes a VLSI backplane having an array of display elements monolithically formed with its driving circuit on a single crystalline semiconductor. Signal processing circuit or a microprocessor used to process image signals for the display may also be formed monolithically with the array and its driving circuit. The array may be designed using a software silicon compiler program to have randomly displaced elements or superpixels for reducing image aliasing. The array may also be designed to have display elements positioned and scaled to compensate for the optical distortion introduced by the magnifier. A color microdisplay utilizes diffraction gratings to provide an array of high efficiency color pixels. The microdisplay includes a semiconductor substrate and source of light disposed adjacent thereto. A cover plate may be disposed above the substrate and has a layer of conductive material on a surface of the cover plate opposite the substrate. An optically active material, such as liquid crystal material, may be disposed between the substrate and the cover plate. An array of pixels are formed on the substrate. The pixel array includes an array of diffraction grating elements. Each element includes one or more diffraction gratings. The pitch of each diffraction grating can be a function of the angle of the incident light and the desired diffraction output spectrum. An optical system directs the diffracted light from each grating through the optically active material into viewing optics.