Abstract: A display panel includes a polarizer and a plurality of optical adjustment layers stacking over one another over the polarizer. The polarizer converts a light incident from its light-incident surface into a linearly polarized light emitting out from its light-emitting surface. Each optical adjustment layer includes a polarization direction-adjusting sub-layer and a quantum rod sub-layer over the polarization direction-adjusting sub-layer. The polarization direction-adjusting sub-layer includes a plurality of adjusting portions and is configured to adjustably control a polarization direction of an incident polarized light. The quantum rod sub-layer includes a plurality of light-excitement portions, and is configured to adjustably change a wavelength of the incident polarized light. Each light-excitement portions contains a plurality of quantum rods, each having its long axis in a substantially same direction.

Abstract: An optically active structure and a display device are presented. The device utilized an optically active structure comprising liquid crystal material and a plurality of nanorods configured to emit light in one or more predetermined ranges in response to pumping light. Variation in orientation of the liquid crystal varies orientation of the nanorods and modulated light emission therefrom.

Abstract: A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.

Abstract: A display device and a display method are provided. The display device includes a display assembly and a refractive component. The display assembly includes a display region and is configured to emit imaging light from the display region to default direction. The refractive component is disposed on a display side of the display assembly and configured to diverge or converge at least partial imaging light. The comfort degree of the head mounted virtual reality device is improved, or a head-mounted display device with anti peeping function is provided.

Abstract: A system uses arrays of spatial light modulators (SLMs) connected to a processor and an image capture device. An image is input into a first array of SLMs. The processor determines if the output of the first array matches an image stored within a database. If a match is found, the processor outputs a stored image to an image processing system. If a match is not found the processor directs the output from the first array into an input of an array of SLMs adjacent to the first array. The determination step is iteratively performed for the remaining arrays of SLMs until a match is found or no arrays remain. If no arrays remain, the processor selects a stored image from the database and obtains user feedback from a user input system. The feedback is then stored in the database and associated with the n?1 array of SLMs.

Abstract: A system for phasing periodically configured laser sources, which comprises: means for collimating and directing the beams arising from the sources onto a combining diffractive optical element with a periodic phase grating, with an angle of incidence that differs from one beam to the next, these angles of incidence being determined according to the period of the grating; means for controlling the phases of the sources based on a negative feedback signal arising from the combined beams; means for drawing off a fraction of the combined beams; on the path of this fraction of the beams, a Fourier lens, with the combining diffractive optical element in its object plane; a matrix of detectors in the image plane of the Fourier lens, capable of detecting intensity distributions; means for calculating the negative feedback signal based on these intensity distributions.

Abstract: There is provided a system and a method for determining an in-band noise parameter representative of the optical noise contribution (such as OSNR) on a polarization-multiplexed optical Signal-Under-Test (SUT) comprising two polarized phase-modulated data-carrying contributions and an optical noise contribution.

Abstract: A method of forming quantum rod (QR) films includes: forming a transmissive film on a substrate; forming a plurality of stripe-shaped slots on the transmissive film; forming a QR layer on an alignment film, the QR layer comprising curing adhesives, and QRs and electric field-sensing monomers doped in the curing adhesives; applying an electrical field on the QR layer, so that under the effect of the electric field, the electric field-sensing monomers drive the QRs aligning with the plurality of stripe-shaped slots; and curing the curing adhesive so to bind the QRs. The present invention also proposes a QR light-emitting display device having a QR film made by the above mention method. The alignment of the long axes of QRs would be improved. It would enhance the luminance of the light emitted from the light-emitting side of the QR film.

Abstract: A transparent waveguide, which is for use in tracking an eye that is illuminated by infrared light having an infrared wavelength, includes a volume Bragg grating type of input-coupler adapted to receive infrared light having the infrared wavelength and couple the received infrared light into the waveguide. The volume Bragg grating includes a lower boundary and an upper boundary that is closer to the output-coupler than the lower boundary. A k-vector angle of the volume Bragg grating at the lower boundary is greater than a k-vector angle at the upper boundary, with k-vector angles of the volume Bragg grating between the lower and upper boundaries gradually decreasing as distances decrease between grating planes of the volume Bragg grating and the upper boundary. Additionally, the volume Bragg grating preferably has an angular bandwidth that is no greater than 5 degrees.

Abstract: Apparatus and method for measuring fluid velocity in a conduit or in open space comprises providing a laser which sends a beam through the fluid, measuring how the beam deflects due to the effect of transverse-moving fluid on the beam, and calculating velocity based on the deflection. The laser beam is one which causes thermal blooming within the fluid and that causes the beam to deflect as a function of the velocity of the fluid. The beam deflection is directly or indirectly measured, for example by looking at the movement of a beam spot on a target, or by sensing the change in intensity of the beam at a target.

Abstract: An array of light beam emitter sections comprises: a substrate having a surface divided into an array of sections; and a grouping of light emitters disposed at each surface section and configured to emit light beams at different emission angles with respect to the surface. Also disclosed is apparatus for establishing optical communication channels between the array of light beam emitter sections and an array of light detectors. Further disclosed is a method of establishing optical communication channels between the array of light emitter sections and the array of light detectors by mapping at least one light emitter of each grouping with a light detector of the detector array to establish optical communication channels between the arrays based on the mappings.

Abstract: A waveguide and method for controllably altering an optical phase delay (OPD) of light traveling along a propagation direction through the waveguide. Many embodiments are disclosed, and in one example, the waveguide may include a core for guiding the light through the waveguide; at least one cladding adjacent the core, wherein the at least one cladding has liquid crystal molecules disposed therein; at least one alignment layer positioned between the at least one cladding and the core, the alignment layer initially aligning at least a portion of the liquid crystal molecules in an initial orientation; and a pair of electrodes for receiving a voltage.

Abstract: A polarization controller includes a first polarization controller, a demultiplexer, a second polarization controller, and a multiplexer. The first polarization controller controls the state of polarization of input light such that a part of the wavelength components of the input light is in a first state of polarization. The demultiplexer demultiplexes the light output from the first polarization controller into a plurality of wavelength components. The second polarization controller controls the plurality of wavelength components in a second state of polarization by using liquid crystal modulation devices. The multiplexer multiplexes the plurality of wavelength components output from the second polarization controller.

Abstract: A monolithic or hybrid integrated optical information processor or optical information processing system having a plurality of non-quadratic phase optical elements, at least one LED array, and plurality of light modulating array elements, each controlled by respective control signals, the system arranged so that each light modulating array element lies in a different plane. In some implementations, at least a portion of the resulting system is implemented in a stack of component materials. In an implementation, an LED array is used as an image source and another LED array is used as an image sensor to transform the processed image into an electrical output.

Abstract: An optical processing system is described that allows rapid evaluation of derivatives and partial derivatives by means of optical Fourier transformation. In embodiments, separate filtering steps are used to provide phase and amplitude changes.

Abstract: A display device includes a first substrate, a second substrate, pads, and first and second flexible circuit boards. The first substrate includes a first insulating substrate, a first resistance layer formed on the first insulating substrate, and first and second signal lines formed on the first insulating substrate. The second substrate faces the first substrate and includes a second insulating substrate, a second resistance layer formed on the second insulating substrate, and third and fourth signal lines formed on the second insulating substrate. The pads comprise a first pad connected to the first signal line, a second pad connected to the second signal line, a third pad connected to the third signal line, and a fourth pad connected to the fourth signal line. The first flexible circuit board is connected to two of the pads and the second flexible circuit board is connected to the other two pads.

Abstract: The present invention provides and optical display device and a method for use in displaying an image. The optical display device comprises An optical display device comprising: at least one region of nanostructures operable as an optically active media, such that said nanostructures are responsive to input electromagnetic radiation to emit output electromagnetic radiation, and an arrangement of electrodes being configured and operable to be selectively addressable to create an external electric field to said at least one region of nanostructures, said region of nanostructures and said arrangement of electrodes defining together a pixel arrangement of said display device; said external electric field affecting said at least one region of nanostructures to selectively modulate emission of said output electromagnetic radiation, said output electromagnetic radiation being an output of at least one pixel element of the display device.

Abstract: The present invention relates to a light modulating device, comprising a SLM and a pixelated optical element, in which a group of at least two adjacent pixels of the SLM in combination with a corresponding group of pixels in the pixelated optical element form a macropixel, the pixelated optical element being of a type such that its pixels comprise a fixed content, each macropixel being used to represent a numerical value which is manifested physically by the states of the pixels of the SLM and the content of the pixels of the pixelated optical element which form the macropixel.

Abstract: A method for testing a liquid crystal panel is provided. The method simulates an outside force endured by the liquid crystal panel when the liquid crystal panel is assembled as a finished product, so that unqualified liquid crystal panels can be detected before the finished product is put into use.

Abstract: A system for selectively revealing indicia to an observer comprises a transitioning window having a receiving surface and a viewing surface. The receiving surface is positioned in optical communication with an indicia holder that is configured to removably retain indicia, such as information content. During operation, the transitioning window transitions from a substantially opaque state to a substantially transparent state so as to reveal or otherwise display the indicia to an observer via the viewing surface.

Abstract: A system for selectively revealing indicia includes a transitioning assembly that is configured to be retrofit with an existing dispenser. The transitioning assembly includes a transitioning window that is coupled to a switch that is configured to be mounted in operative contact with an actuator provided by the dispenser. Upon the engagement of the actuator, the switch is triggered, resulting in the transitioning window transitioning from an at least partially opaque state to an at least partially transparent state, so as to reveal indicia therebehind to an observer.

Abstract: A combination of an LCD display and a gaming machine includes an LCD comprising a touchscreen, a liquid crystal panel, a backlight module, printed circuit boards, and a rear cover having an opening wherein the backlight module comprises, from front to rear, four optical films each having three openings, three barrier films, a light guide having three openings, two light sources on top and bottom edges of the light guide respectively, a reflecting film having three openings, and a frame plate having three openings, the barrier films functions as a visual barrier or a transparent member by adjusting voltage applied thereto, and the openings are aligned one another; a plurality of revolving wheels disposed behind the LCD, each wheel comprising a plurality of symbols arranged annually thereon. One pattern including the symbols of the wheels behind the openings is illuminated by the light source.

Abstract: In an electronic device and a method of adjusting a viewing angle of a liquid crystal display (LCD), a face recognition reference is established. The face recognition reference is compared with faces in an image which is captured by a camera unit to locate a matched face. An adjusted viewing angle of the LCD is computed according to a default viewing angle of the LCD and an angle between a perpendicular of the LCD and a line formed by connecting a center of the LCD and a center of two eyes in the matched face. A voltage value is computed according to the adjusted viewing angle, and a voltage is applied to the liquid crystal molecules of the LCD according to the voltage value to change the default viewing angle of the LCD to the adjusted viewing angle.

Abstract: A display system includes a liquid crystal display (10) including a backlight (3), a liquid crystal display panel (1), and a viewing angle control panel (2) for controlling the viewing angle of the display panel (1), the display system causing the amount of external light reflected by the liquid crystal display (10) to be relatively larger than the amount of light leaked from the backlight (3) onto the liquid crystal display panel (1). This provides a display system having an enhanced blocking effect.

Abstract: An electronic apparatus with a protective panel, includes a display device 3 having a display section 3A, an enclosure 2 having a display window 2A which is open in one direction and mounts therein the display device 3 so as to expose the display section 5A to the outside, a protective panel 4 disposed at the display window 2A so as to cover the display section 3A from the outside; and a pressure-sensitive conductive rubber 14 interposed between a movable portion M including at least the protective panel 4 of the protective panel 4 and the display device 3 and a frame-like support portion 2b defined by a surface of the enclosure 2 within the display window 2A, so as to prevent intrusion of foreign substance to the interior of the enclosure 2 through the display window 2A, the rubber detecting a depressing operation on the movable portion M.

Abstract: A process of producing an optical compensation sheet is provided, which comprises applying a solution comprising a liquid crystalline compound and a photo-polymerization initiator on a transparent support, drying the solution at a drying temperature which satisfies the following formula (1) to align the liquid crystalline compound, and then fixing the liquid crystalline compound by light irradiation to form an optical anisotropic layer: T?0.0014×Ecoh?65??(1) wherein T represents drying temperature (° C.), Ecoh represents condensation energy (J/mol) of the photo-polymerization initiator, by which an optical compensation sheet of stable optical characteristics can be obtained by using an essentially needed amount of photo-polymerization initiator for the photo-polymerization reaction. By the process of the present invention, the staining of the production facility of the optical compensation sheet derived from vaporization of photo-polymerization initiator can be reduced.

Abstract: Liquid crystal waveguides for dynamically controlling the refraction of light. Generally, liquid crystal materials may be disposed within a waveguide in a cladding proximate or adjacent to a core layer of the waveguide. In one example, portions of the liquid crystal material can be induced to form refractive or lens shapes in the cladding that interact with a portion (e.g. evanescent) of light in the waveguide so as to permit electronic control of the refraction/bending, focusing, or defocusing of light as it travels through the waveguide. In one example, a waveguide may be formed using one or more patterned or shaped electrodes that induce formation of such refractive or lens shapes of liquid crystal material, or alternatively, an alignment layer may have one or more regions that define such refractive or lens shapes to induce formation of refractive or lens shapes of the liquid crystal material.

Abstract: An optical processing system is described that allows rapid evaluation of derivatives and partial derivatives by means of optical Fourier transformation. In embodiments, separate filtering steps are used to provide phase and amplitude changes.

Abstract: A liquid crystal display apparatus comprises a liquid crystal display panel including a display region, a planar light source device having a light exit surface which faces the liquid crystal display panel and from which planar light exits toward the liquid crystal display panel, and a back surface located opposite to the light exit surface, a coordinates position detecting device which detects coordinates of a position designated on the display region; and a frame which has a projection and supports the liquid crystal display panel and the planar light source, the projection being formed integrally with the frame and extending along the back surface with a distance corresponding to a thickness of the coordinates position detecting device from the planar light source device. The coordinates position detecting device is interposed between the projection and the planar light source device and supported by the projection.

Abstract: Various devices and methods employing a resistive phase change material are disclosed.

Abstract: A photometric device of liquid crystal display and a liquid crystal display in which photometry can be performed without relying upon manpower and the liquid crystal plane is shielded only at the time of photometry. The photometric device comprises a liquid crystal display part, a bezel surrounding the four sides of the liquid crystal display, a shaft part provided at the corner part of the bezel and fixed rotatably thereto, a movable part having the end part thereof connected to the shaft part, and a sensor part provided in the liquid crystal display part at the other end part of the movable part.

Abstract: A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plate; and a keypad circuit board.

Abstract: A light direction switching apparatus and method is described. The light direction switching apparatus comprises a passive birefringent lens (138), e.g. a birefringent lenticular screen, and a switchable polariser (146). By switching the polariser (146), different directional distributions of output light are provided. The light direction switching apparatus may be used with or incorporated in a display device, such as a liquid crystal display device, to provide a display device switchable between a two dimensional mode and an autostereoscopic three dimensional mode, or to provide a multi-user display device where different images are displayed to different viewers. The light direction switching apparatus may also be used to provide switchable brightness enhancement of reflective or transflective display devices. The light direction switching apparatus may also be used to provide a fiber-optic switching apparatus. The switchable polariser may be mechanically switchable or electrically switchable.

Abstract: A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plate; and a keypad circuit board.

Abstract: As a structure capable of housing a recording/reproducing unit within a thin type image display apparatus without damaging the characteristic of the thin-type image display apparatus such as a wall-hung TV when using the unit, there is provided an image display apparatus having a flat display panel and a casing that supports the display panel wherein a recording/reproducing unit that houses a storage medium therein and conducts the writing or reading with respect to the storage medium is supported substantially in parallel with the display panel within the casing. The image display apparatus is capable of changing the arrangement direction of the storage medium, suppressing an interference of the storage medium with a peripheral device at the time of projecting the storage medium, and housing the storage medium so as not to be superimposed on the display panel.

Abstract: A liquid crystal display 200 comprises a 1024-to-1021 gray scale conversion calculator 1 for converting an image data A(1024) of 1024 gray levels (=10 bits) into an image data Y(1021) of 1021 gray levels, an adjusting four-level sample storage 22 and a random number generator circuit 3 for randomly selecting and releasing on the frame-by-frame basis a group of the adjusting four gray levels &Dgr;1p to &Dgr;4p, &Dgr;1q to &Dgr;4q, and &Dgr;1r to &Dgr;4r which is determined by the least two bits Y(1021—d2) of the image data Y(1021) of 1021 gray levels at each of segments (p,q,r) of one pixel, an adder 23 for summing the upper eight bits Y(102113 d8) of the image data Y(1021) of 1021 gray levels and one group of the adjusting four gray levels to have three sets of image data of 256 gray levels D1p to D4p, D1q to D4q, and D1r to D4r which are then released in a sequence, and a 256 gray scale three-segment monochrome liquid crystal display panel 24.

Abstract: An imaging system is disclosed that includes an illumination source, a modulator and a variable Fourier diaphragm. The illumination source produces a first illumination field having a first frequency and a second illumination field having a second frequency. The modulator receives the first illumination field and the second illumination field, and produces a first modulated illumination field and a second modulated illumination fields. The variable Fourier diaphragm selectively passes one of the first modulated illumination field and the second modulated illumination field.

Abstract: An apparatus for detecting the presence of one or more images of a known kind in a scene is disclosed which comprises a digital input means and an optical output means. The digital input means comprises a capture means which passes a capture image to a first electronic processing means to produce a scene pattern corresponding to a Fourier Transform of the scene image. This pattern is then digitally combined with one or more reference patterns corresponding to Fourier Transforms of a reference image. The resulting combined patterns are then used to modulate a beam of light which may be focused to perform an inverse Fourier Transform providing correlation information. In a preferred arrangement, the combined pattern is displayed on a spatial light modulator.

Abstract: A polarization-independent optical switch is disclosed for switching at least one incoming beam from at least one input source to at least one output drain.

Abstract: An optical system including one or more switchable holographic optical elements is described for use with a pancake window display system. Each of the switchable holographic optical elements of the optical system operates between active and inactive states in accordance with control signals provided by a control logic circuit. In the active state, each switchable holographic optical element operates to reflect and collimate a narrow band of incident light thereon. In the inactive state, the switchable holographic optical element operates to transmit a substantial portion of light thereon without substantial alteration.

Abstract: An image display system, e.g. for projection type displays, has an electrically addressed spatial light modulator or EASLM (1) and an optically addressed spatial light modulator or OASLM (5). An image formed on the EASLM (1) is transferred to a part of the OASLM (5) by an image transfer means (3) and the image produced by the OASLM (5) is formed from a plurality of successive images formed by the EASLM.

Abstract: It is the object of the present invention to provide an optical element for controlling the polarization state spatially by using a liquid crystal and a method for manufacturing the same, and to provide an optical apparatus for correcting the polarization state in conformity with a particular purpose and method for manufacturing the same. The optical element for controlling the polarization state of light spatially by modifying directions of orientation of liquid crystal molecules caused by an oriented film and the optical apparatus by the use of the optical element are described. Orientation which is realized in the aforesaid oriented film for liquid crystal molecules is controlled by light irradiation with ultraviolet light etc.

Abstract: An optical filtering apparatus and method, wherein at least one polarizer is located in the path of radiation passing through a birefringent medium. The invention can be used to process complementary bands of spatial frequency spectra. The invention can be practiced using a polarizing beam splitter. The invention can also be practiced using an optical storage layer forming part of the birefringent medium.

Abstract: A computer-based system for producing a multi-color multilayer image on a substrate using multi-colored cholesteric liquid crystal (CLC) pigment materials made from CLC flakes tuned to predetermined bands of color. A computer-controlled image generator automatically generates an image specifying a pattern over which binder material is to be applied to a substrate by a binder material applicator. A plurality of CLC pigment applicators automatically apply patterns of different-color CLC pigment material to a pattern of binder material applied to the substrate, binding thereto as the binder material dries. An output device is used to automatically return the substrate to a different one of CLC pigment applicators after each application of a pattern of different-color CLC pigment material to the pattern of binder material.

Abstract: A signal image is transmitted by write light from a transmission type liquid crystal element 4 to an optically-addressed type parallel-aligned nematic-liquid-crystal spatial light modulator 6. The numerical aperture NAL of a relay lens 5, the pitch P of the pixel structure of the transmission type liquid crystal element 4, and the wavelength &lgr; of light from the write light source 1 are set with the condition 1/2P<NAL/&lgr;<1/P. As a result, the signal component caused by the pixel structure can be erased. Furthermore, no degradation is generated in the entire range of the spatial frequencies of the signal image that can be produced by the transmission type liquid crystal element 4.

Abstract: A display system, display device and add-on for a display device are disclosed to provide for viewing a three-dimensional image using polarization. The image is separated into first eye and second eye components. In one embodiment, a system comprises a computer-driven display device and a pair of viewing glasses. The display device is adapted to display the first eye and second eye components in alternating refreshes of the display device, the alternating refreshes polarized substantially perpendicular to one another. The pair of viewing glasses has two lenses. Each lens is polarized substantially particular on one another, in accordance with the alternating refreshes.

Abstract: An optical apparatus provided with a focusing optics (104) for focusing linearly polarized light has a construction wherein an optical rotatory element (103) having a region for optically rotating a polarization axis of the linearly polarized light in at least a portion thereof is disposed in the optical path of the linearly polarized light so as to differentiate locally the orientation of the polarization axis of the linearly polarized light falling thereon. The optical rotatory element (103) is preferably composed of a &thgr;° optically rotatable region (103a) capable of optically rotating a polarization axis of the linearly polarized light falling thereon by an optional angle &thgr;°, and a (&thgr;−90)° optically rotatable region (103b) capable of optically rotating a polarization axis of the linearly polarized light falling thereon substantially by an angle of (&thgr;−90)°.

Abstract: A new method to analyze and predict the binding energy for enzyme-transition state inhibitor interactions is presented. Computational neural networks are employed to discovery quantum mechanical features of transition states and putative inhibitors necessary for binding. The method is able to generate its own relationship between the quantum mechanical structure of the inhibitor and the strength of binding. Feed-forward neural networks with back propagation of error can be trained to recognize the quantum mechanical electrostatic potential at the entire van der Waals surface, rather than a collapsed representation, of a group of training inhibitors and to predict the strength of interactions between the enzyme and a group of novel inhibitors. The experimental results show that the neural networks can predict with quantitative accuracy the binding strength of new inhibitors.

Abstract: In a device with a laser for image presentation in which the laser emits laser light of a defined coherence length L at a given wavelength .lambda. and in which there is arranged in the path of the laser light a first structure with which phase displacements can be carried out for individual photons of the laser light in accordance with a predetermined distribution, it is provided that the average path given by the ratio of the average root mean square of the phase displacement formed by the distribution and the magnitude of the wave vector k=2.pi./.lambda. of the laser is greater than the coherence length L multiplied by a factor of 1/(12).sup.1/2.

Abstract: An apparatus and method for characterizing light beam collimation and alignment. A liquid crystal device receiving a light beam from a collimation lens has a lenslet array generated thereon. A corresponding array of point spread functions are detected by a charge coupled device camera, from which light beam collimation and alignment are characterized. The data may be further used to adjust the collimation lens to correct misalignment.