| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | BISTABLE NEMATIC LIQUID CRYSTAL DEVICE | EP00977689.9 | 2000-11-23 | EP1234207A1 | 2002-08-28 | JONES, John Clifford |
| A liquid crystal device comprises a layer (2) of a nematic liquid crystal material contained between two cell walls (3, 4) each carrying electrode structures (6, 7) and an alignment surface (20, 21). The alignment layer (20, 21) on one or both cell wall (4), is formed of a plurality of small (<15νm) surface features each separably capable of providing a bistable pretilts and an alignment direction and collectively causing larger variations of molecular orientation across the layer (2). The device may be switched between a light transmissive state and a light non-transmissive state. The small surface features may be areas of grating (21), protrusions (25), or blind holes (26), separated by mono stable flat surfaces (Fm) coated with a homeotropic alignment layer. Preferably, the grating etc provides bistable switching operation between a low surface tilt and high surface tilt, and the low tilt alignment direction varies between adjacent grating areas. | ||||||
| 142 | APERIODIC LONGITUDINAL GRATINGS AND OPTIMISATION METHOD | EP00907786.8 | 2000-03-03 | EP1163542A1 | 2001-12-19 | Mears, Robert Joseph; Parker, Michael Charles |
| The invention relates to the field of grating structures. The invention provides a longitudinal grating having an aperiodic structure, wherein the grating has a selected response characteristic and any repeated unit cell in the structure is significantly longer than a characteristic length associated with the selected response characteristic. | ||||||
| 143 | QUADRUPLE GRATING PERIOD PPLN OPTICAL PARAMETRIC OSCILLATOR DIFFERENCE FREQUENCY GENERATOR WITH COMMON DOUBLY RESONANT CAVITY | EP99956474.3 | 1999-07-09 | EP1127392A1 | 2001-08-29 | MEYER, Ronald, K., Jr.; VAIDYANATHAN, Mohan; PEKNY, William; GRIFFITH, Gerald, P.; MUI, Peter, H. |
| The present invention relates generally to the field of optical devices and particularly to embodiments of a four-stage PPLN optical parametric oscillator/difference-frequency generator configuration. The present invention allows simultaneously and colinear generation of four wavelengths in efficient use of the pump signal. A first embodiment comprises a singly resonant cavity (38) having an internal monolithic non-linear optical medium (20) disposed in the cavity. The cavity is bounded by an input mirror (34) and an output mirror (36). The monolithic non-linear optical medium is divided into four regions each having its own grating period. A second embodiment of the present invention comprises a monolithic non-linear optical medium (40) divided into four separate regions (46, 48, 50, 52). The entrance facet (42) and exit facet (44) of the monolithic non-linear optical medium includes a coating (58, 60) which acts as the cavity mirrors. | ||||||
| 144 | SWITCHABLE OPTICAL COMPONENTS | EP98943190 | 1998-08-13 | EP1023621A4 | 2001-08-08 | DOMASH LAWRENCE H; LITTLE BRENT |
| This invention relates to a number of components, devices and networks involving integrated optics and/or half coupler technology, all of which involve the use of electronically switchable Bragg grating devices and device geometries realized using holographic polymer/dispersed liquid crystal materials. Most of the components and devices are particularly adapted for use in wavelength division multiplexing (WDM) systems and in particular for use in switchable add/drop filtering (SADF) and wavelength selective crossconnect. Attenuators, outcouplers and a variety of other devices are also provided. | ||||||
| 145 | CONTROLLABLE BEAM DIRECTOR USING POLED STRUCTURE | EP95931516.0 | 1995-09-06 | EP0784803A1 | 1997-07-23 | DEACON, David, A., G.; BRINKMAN, Michael, J.; BISCHEL, William, K.; FIELD, Simon, J. |
| A new class of energy interaction devices, particularly optical energy transfer devices and energy guiding devices, use an energy field, particularly an electric field, applied to a poled structure to control energy propagation in a solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures to guide energy beams such as optical or acoustic beams. Electric fields applied to the poled structures, such as electrically-activated gratings, control routing of optical energy. Optical devices include but are not limited to, frequency-selective switchable- and adjustably-tunable reflectors, splitters, directional couplers, frequency-tunable switches and efficient beam combiners, as well as polarized beam combiners, AM and FM modulators, mode selectors, energy transfer devices, optical data readers, panel display devices, and waveguide/reflector switching arrays. Variable reflectivity in a grating and adjustable tunability is obtained by a poled structure under the influence of an adjustable field, producing a spatial gradient in an adjustable propagation velocity in the solid material. | ||||||
| 146 | 3D DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME | US15773782 | 2017-07-11 | US20180329220A1 | 2018-11-15 | Weijie Ma; Xianlin Ding; Taofeng Xie; Pingping Jia; Yi Zhang; Cui Chen |
| A 3D display device and a method for manufacturing a 3D display device. The 3D display device includes: a display component; and a liquid crystal grating on a light exit side of the display component. The liquid crystal grating includes: a substrate; a liquid crystal layer between the substrate and the display component; and a 3D display control component located only on a side of the substrate facing the liquid crystal layer and located only on one side of the liquid crystal layer. | ||||||
| 147 | Array substrate and manufacturing method thereof, liquid crystal display panel and display device | US15325051 | 2016-02-24 | US10048546B2 | 2018-08-14 | Yunbok Lee; Yuanhui Guo |
| Embodiments of the disclosure provide an array substrate, a method of manufacturing an array substrate, a liquid crystal display panel, and a display device. The array substrate comprises: a common electrode and a pixel electrode on a base substrate; and a passivation layer between the common electrode and the pixel electrode. The pixel electrode is a grating structure comprising a plurality of sub-pixel electrodes. The sub-pixel electrode comprises a body structure extending in a first direction, and a bending structure extending in a second direction and formed at an end portion of at least one end of the body structure. A protrusion is disposed at a joint of the body structure and the bending structure. | ||||||
| 148 | SAW Modulators and Light Steering Methods | US15883802 | 2018-01-30 | US20180217473A1 | 2018-08-02 | Ian W. Frank; Steven J. Byrnes; Juha-Pekka J. Laine; Gregg E. Favalora; Joseph J. Register; Dennis M. Callahan; Michael G. Moebius |
| An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion. | ||||||
| 149 | AMPLIFICATION WAVEGUIDE DEVICE AND AMPLIFICATION BEAM STEERING APPARATUS INCLUDING THE SAME | US15708843 | 2017-09-19 | US20180217471A1 | 2018-08-02 | Eunkyung LEE; Byounglyong CHOI; Jungwoo KIM |
| An amplification waveguide device and an amplification beam steering apparatus are provided. The amplification beam steering apparatus includes a beam steerer configured to control emission directions of light beams output therefrom, a plurality of waveguides configured to guide the light beams output from the beam steerer, and a light amplifier configured to amplify the light beams traveling through the plurality of waveguides. | ||||||
| 150 | DOUBLE-SIDE LIQUID CRYSTAL DISPLAY DEVICE AND BACKLIGHT MODULE THEREOF | US15107449 | 2016-05-10 | US20180156953A1 | 2018-06-07 | Minghui LI |
| The disclosure discloses a double-side liquid crystal display device and a backlight module thereof, the two metal wire grating polarized films with perpendicular metal wire gratings can utilize reflective light of the liquid crystal panel on one side to provide incidence light to the liquid crystal panel on the other side, the incidence light and the reflective light of the two liquid crystal panels compensate mutually to improve light utilization efficiency significantly and brightness of the two liquid crystal panels, and brightness of the two is unified simultaneously; moreover, the built-in metal wire grating polarized film substitutes the polarized plate attached on outside of the substrate, which can reduce processes and costs without sacrificing characteristics of polarized light; white backlight is formed by the blue LED, the red and green quantum dots to increase color gamut and brightness of the double-side display device. | ||||||
| 151 | DISPLAY PANEL, OPERATING METHOD THEREOF AND DISPLAY DEVICE | US15512427 | 2016-09-09 | US20180149917A1 | 2018-05-31 | Xinxing Wang; Jikai Yao; Hua Huang |
| The present disclosure provides a display panel, an operating method thereof and a display device. The display panel includes first substrate and second substrate disposed opposite to each other, liquid crystal layer disposed between first substrate and second substrate, orthogonal polarization layer disposed on a side of first substrate facing towards liquid crystal layer, and first absorbent layer disposed on a side of first substrate facing away from liquid crystal layer. When no electric field is loaded, both liquid crystal layer and orthogonal polarization layer transmit light with first polarization direction. When electric field is loaded, liquid crystal layer converts incident light with first polarization direction into emergent light with second polarization direction which is orthogonal to first polarization direction, and the orthogonal polarization layer reflects the light with the second polarization direction. The first absorbent layer absorbs the light incident thereon. | ||||||
| 152 | Variable optical attenuator comprising a switchable polarization grating | US15360515 | 2016-11-23 | US09927678B2 | 2018-03-27 | Chongchang Mao; Minchun Li; Hong Min |
| Embodiments of the present invention provide a variable optical attenuator. The variable optical attenuator includes: a collimator, a switchable polarization grating, a reflector, and a voltage controller for adjusting a voltage between electrodes at both ends of a liquid crystal layer of the switchable polarization grating, where the collimator, the switchable polarization grating, and the reflector are disposed successively; the collimator is configured to receive incident light and output the incident light to the switchable polarization grating; the switchable polarization grating is configured to diffract the incident light for one time and then perform emission onto the reflector; the switchable polarization grating is further configured to diffract, for one time, a beam reflected back by the reflector, and then emit resulting diffracted light; and the collimator is further configured to receive the diffracted light and output the diffracted light. | ||||||
| 153 | OPTICAL DEVICE AND METHOD OF CONTROLLING THE SAME | US15544442 | 2016-01-11 | US20170371226A1 | 2017-12-28 | Junfeng Song; Xianshu Luo; Patrick Guo-Qiang Lo |
| According to embodiments of the present invention, an optical device is provided. The optical device includes a waveguide structure including a floating gate, and an optical waveguide arranged spaced apart from the floating gate, wherein the optical waveguide overlaps with the floating gate, a carrier injection portion arranged spaced apart from the floating gate, and an electrode arrangement, wherein, in response to a first voltage difference applied to the electrode arrangement, the optical device is configured to inject charge carriers from the carrier injection portion to the floating gate to cause a change in refractive index of the waveguide structure, and wherein, in response to a second voltage difference applied to the electrode arrangement, the optical device is configured to drive the charge carriers from the floating gate to the optical waveguide to deplete the charge carriers. | ||||||
| 154 | Apparatus for eye tracking | US15274049 | 2016-09-23 | US09804389B2 | 2017-10-31 | Milan Momcilo Popovich; Jonathan David Waldern; Alastair John Grant |
| An eye tracker having a waveguide for propagating illumination light towards an eye and propagating image light reflected from at least one surface of an eye, a light source optically coupled to the waveguide, and a detector optically coupled to the waveguide. Disposed in the waveguide is at least one grating lamina for deflecting the illumination light towards the eye along a first waveguide path and deflecting the image light towards the detector along a second waveguide path. | ||||||
| 155 | Time-Domain Adjustment of Phase Retardation in a Liquid Crystal Grating for a Color Display | US15347685 | 2016-11-09 | US20170115519A1 | 2017-04-27 | Jianru SHI; Mary Lou JEPSEN |
| A method includes sequentially transmitting, through a beam steering device, light of a first color and light of a second color that is distinct from the first color. The method also includes applying a first voltage to the beam steering device for transmission of the light of the first color through the beam steering device; and applying a second voltage to the beam steering device for transmission of the light of the second color through the beam steering device. A device configured to perform the method is also described. | ||||||
| 156 | Terahertz Modulator Based on Low-dimension Electron Plasma Wave and Manufacturing Method thereof | US15317669 | 2015-06-09 | US20170108756A1 | 2017-04-20 | Yongdan HUANG; Hua QIN; Zhipeng ZHANG; Yao YU |
| A terahertz modulator based on low-dimension electron plasma wave, a manufacturing method thereof, and a high speed modulation method are provided. The terahertz modulator includes a plasmon and a cavity. The present disclosure discloses the resonance absorption mechanism caused by collective oscillation of electrons (plasma wave, namely, the plasmon). In order to enhance the coupling strength between the terahertz wave and the plasmon, a GaN/AlGaN high electron mobility transistor structure having a grating gate is integrated in a terahertz Fabry-Pérot cavity, and a plasmon polariton is formed arising from strong coupling of the plasmon and a cavity mode. | ||||||
| 157 | GRATING, DISPLAY DEVICE, AND MANUFACTURING METHOD OF GRATING | US15037482 | 2015-09-18 | US20170108701A1 | 2017-04-20 | Xiaojuan Wu; Wei Li |
| A grating, a manufacturing method of grating and a display device are disclosed. The grating comprises a first substrate (21) and a second substrate (22) which are oppositely disposed; a first transparent electrode (23) which has a grating structure and is disposed on a side of the first substrate (21) facing towards the second substrate (22); a second transparent electrode (24) which is disposed on a side of the second substrate (22) facing towards the first substrate (21) and is disposed to be opposite to the first transparent electrode (23); and a polymer layer (25) which is disposed between the first transparent electrode (23) and the second transparent electrode (24), the polymer layer containing therein nano-sized material converting electromagnetic energy into heat energy and liquid crystalline elastomers. When a voltage is applied between the first transparent electrode (23) and the second transparent electrode (24), the nano-sized material converts electromagnetic energy into heat energy, so that the polymer layer (25) is in cholesterol phase and reflects all the light within the wavelength range of visible light; and when no voltage is applied between the first transparent electrode (23) and the second transparent electrode (24), the polymer layer (25) is in transparent state. The grating is configured to be used with a display panel to achieve naked-eye 3D display and reduce light transmission loss at the time of 2D display. | ||||||
| 158 | EDGE-LIT TWO-DIMENSIONAL DISPLAY WITH LOCAL DIMMING | US14866319 | 2015-09-25 | US20170090269A1 | 2017-03-30 | Jiandong Huang; Steven Bathiche |
| Methods, systems, apparatuses, and computer program products are provided for a backlight assembly for a display device. The backlight assembly includes a transparent waveguide layer, a plurality of light sources, and a tunable grating layer. The light sources are arranged along an edge of the waveguide layer. Each light source transmits light into the waveguide layer through the edge. The grating layer is coupled to the waveguide layer, and has multiple rows. Each row of the grating layer is segmented into a series of cells so the grating layer is sectioned into an array of cells. Each cell is independently controllable to either not extract incident light received from within the waveguide layer, or to extract the incident light for emission from the backlight assembly. In another configuration, the waveguide layer is not present, and the light sources transmit light directly into an edge of the grating layer. | ||||||
| 159 | ACTIVELY CONTROLLABLE COLOR USING HIGH CONTRAST METASTRUCTURES | US15215112 | 2016-07-20 | US20170023807A1 | 2017-01-26 | Connie Chang-Hasnain; Li Zhu |
| A color changing or beam steering photonic device, which combines a high contrast metastructure (HCM) having a plurality of high index grating structures, into a low index membrane. In response to physical (or electrical) deformation of the membrane the low index gaps between adjacent grating bars changes which results in changing reflectance and transmission angles for steering a single wavelength of light and for causing a color change in said photonic device when subject to multiple light wavelengths. Deformation can result from direct physical stimulus, conversion from electrical or thermal to physical, and so forth. Refractive index change can also be initiated by carrier injection through electrodes. The apparatus is exemplified for use in color displays, beam steering, labeling micro entities, mechanical deformation sensing, camouflage, anti-counterfeiting, and other fields. | ||||||
| 160 | Apparatus for eye tracking | US14409875 | 2013-05-10 | US09456744B2 | 2016-10-04 | Milan Momcilo Popovich; Jonathan David Waldern; Alastair John Grant |
| An eye tracker having a waveguide for propagating illumination light towards an eye and propagating image light reflected from at least one surface of an eye, a light source optically coupled to the waveguide, and a detector optically coupled to the waveguide. Disposed in the waveguide is at least one grating lamina for deflecting the illumination light towards the eye along a first waveguide path and deflecting the image light towards the detector along a second waveguide path. | ||||||
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