Abstract: Aspects of the present disclosure relate to haptic feedback systems and methods for use in head-worn computing systems. A head worn computer includes a frame adapted to hold a computer display in front of a user's eye, a processor adapted to present digital content in the computer display and to produce a haptic signal in coordination with the digital content display, and a haptic system including a plurality of haptic segments, wherein each of the haptic segments is individually controlled in coordination with the haptic signal.

Abstract: Disclosed is a depth-priority integral imaging display method using a nonuniform dynamic mask array which makes it possible to enhance the resolutions in both horizontal and vertical directions in such a way to change a division boundary of a mask pattern and use a two-times time multiplexing. It is possible to enjoy the images of clear resolutions even in the product of 60 Hz, and the afterimages at the division boundary may be eliminated by changing the dividing direction of the mask, so the images with clearer resolutions can be displayed.

Abstract: An image display device is provided. The image display device includes a 3D display module and an optical component disposed above the 3D display module. The 3D display module includes a backlight source and a plurality of pixels disposed above the backlight source, wherein the pixels provide a plurality of view units, and each of the view units includes a plurality of views. Lights from the backlight source are concentrated at a virtual focus point, and the backlight source is located between the virtual focus point and the optical component.

Abstract: A device that creates visible light in space comprises of a light source and optics system that result in irradiated visible spectrum light rays with a low intensity such that the light is not visible by the normal observer. Multiple rays of visible-spectrum low-intensity non-visible light intersect. When the constructive intensity of the intersecting light is above the threshold for being visible then light appears at that place. The light rays to and from the visible light remain non-visible. The addition of irradiated visible light results in additional visual effects. The visible light can be moved in space, and form multi-dimensional images and holograms. User and programmable controls, with communication abilities and data storage, can mediate the light source and optics to control the visible image.

Abstract: A polarizing mask and an apparatus and method for manufacturing an optical device are provided. The polarizing mask capable of being used to manufacture the optical device including an optical layer whose optical axes or light absorption axes are shifted continuously is provided. The optical device manufactured thus can be used to adjust characteristics of light in electronic devices such as display devices, or can be used for various applications requiring a continuous change in an optical axis or light absorption axis, including use of windows or shades of buildings or automobiles.

Abstract: According to exemplary embodiments of the present disclosure, it is possible to provide method, system, arrangement, computer-accessible medium and device to stimulate individual neurons in brain slices in any arbitrary spatio-temporal pattern, using two-photon uncaging of photo-sensitive compounds such as MNI-glutamate and/or RuBi-Glutamate with beam multiplexing. Such exemplary method and device can have single-cell and three-dimensional precision. For example, by sequentially stimulating up to a thousand potential presynaptic neurons, it is possible to generate detailed functional maps of inputs to a cell. In addition, it is possible to combine this exemplary approach with two-photon calcium imaging in an all-optical method to image and manipulate circuit activity. Further exemplary embodiments of the present disclosure can include a light-weight, compact portable device providing for uses in a wide variety of applications.

Abstract: A method for adjusting a position of a first image stabilization unit and/or a second image stabilization unit of an optical system is provided. The method comprises the steps of detecting a movement of the optical system by means of an angle-of-rotation sensor and determining a bending angle of a first hinge part relative to a second hinge part of a folding bridge of the optical system. Furthermore, a correction angle is determined based on the bending angle. The first image stabilization unit is rotated about the correction angle relative to a first housing and/or the second image stabilization unit is rotated about the correction angle relative to a second housing.

Abstract: Electro-magnetic actuators used to provide a displacement of an optical element such as a lens carrier comprise at least one ferromagnetic frame associated with a large air gap and at least one ferromagnetic member parallel to and separated from an elongated section of a frame by a small air gap. Actuation causes a magnetic circuit that appears in the at least one frame, the at least one member and small air gaps and by-passes or bridges the large air gap. In some embodiments, the resultant magnetic force moves the at least one member and leads to the displacement of an optical element attached thereto. In some embodiments, at least one frame and at least one member are arranged to provide a center hole and are dimensioned to enable insertion of a lens carrier in the hole. In some embodiments, the displacement is for auto-focus. In other embodiments, the displacement is for optical image stabilization.

Abstract: Eyeglasses include rims, at least one temple member connected to the rims, and at least one lens with a perimeter edge. The perimeter edge of the lens includes an upper perimeter edge, a lateral perimeter edge, a lower perimeter edge, and a medial perimeter edge. The rims are configured to retain the at least one lens with the upper perimeter edge of the lens engaging the rims. A vent arrangement is provided between the lens and the rims. The vent arrangement includes an opening between a lateral side of the rims and the lateral perimeter edge of the lens.

Abstract: There is provided an optical modulator capable of electrically controlling intensity of transmitted light in a desired wavelength range at a high speed and reducing the size of a device containing the optical modulator. The optical modulator includes a first electrode; a second electrode; and a dielectric layer provided between the first and second electrodes. At least one of the first electrode and the second electrode comprises at least one layer of graphene. There are also provided an imaging device and a display apparatus each containing the optical modulator.

Abstract: Methods and apparatus for controlling a bias voltage (20) supplied to an optical modulator that comprises a biasable component configurable to be biased by application of the bias voltage (20), the method comprising: providing a target for the modulator output power; applying, to the biasable component, a bias voltage (20) that biases the biasable component so that the output power is within a pre-defined range of the target; monitoring the output power and, if the output power of the modulator is determined to be outside the pre-defined range, varying the value of the bias voltage (20) to bring the output power back within the pre-defined range; and monitoring the optical input to the modulator and, if it has been disabled, maintaining the bias voltage (20) at its current level for a pre-determined length of time that is dependent upon how long the modulator has been operating at quadrature.

Abstract: The driver circuit comprises a first node (J1), which is connected to a first terminal of the Pockels cell (CP), a second node (J2), which is connected to a second terminal of the Pockels cell (CP), wherein the first node (J1) is connected to a first potential (+HV) via a first switching unit (S1) and the second node (J2) is connected to the first potential (+HV) via a second switching unit (S2) and wherein the first node (J1) is connected to a second potential (?HV) via a first resistance (R1) and the second node (J2) is connected to the second potential (?HV) via a second resistance (R2); and wherein the first node (J1) is connected to the second node (J2) via a series circuit comprising a third resistance (R3) and an inductance (L1).

Abstract: A display device and driving method thereof are disclosed. The display device includes a display screen, including a plurality of sub-pixels arranged in the form of a matrix, colors of the sub-pixels in the same column including all colors necessary for display by the display screen; a grating disposed on top of the display screen, including light-transmissive regions and light-shading regions that are arranged alternately, the light-transmissive regions being in parallel to each column of the sub-pixels; a rolling structure, located between the display screen and the grating; and a push mechanism, for pushing the grating and/or the display screen, so that relative position of the grating and the display screen is switchable between a first state and a second state, and switchover between a dual viewing field display effect and an anti-spy display effect is achieved for the display device.

Abstract: A voltage adjustment circuit for adjusting a voltage to be supplied to scanning lines of a display device includes a slope adjustment circuit configured to adjust a slope of a decrease in the voltage based on data that is externally input, and a clamp voltage adjustment circuit configured to adjust a voltage value at which the voltage is clamped based on the data.

Abstract: According to one embodiment, a display device includes first, second, and third interconnects, switch elements, pixel electrodes, a display layer, and a controller. The switch elements are arranged in a matrix configuration, and connected to the first and second interconnects. The pixel electrodes are electrically connected to the switch elements. The third interconnects oppose the pixel electrodes. The display layer is provided on the pixel electrodes. The controller is electrically connected to the first, second, and third interconnects. The second interconnects include a first color interconnect. The controller performs a first operation of sequentially selecting the first interconnects and supplying a first color image signal to the first color interconnect. The controller performs a second operation of sequentially selecting the first interconnects and supplying a second color image signal to the first color interconnect.

Abstract: A display apparatus includes a plurality of pixel units and each pixel unit includes a substrate, a first electrode, a second electrode, an image display part and a protective layer. The first electrode is formed on the substrate. The second electrode is formed over the first electrode while interposing a first insulating layer therebetween to define a TSC (tunnel-shaped cavity) extending in a first direction between the first and second electrodes. The image display part is provided in the TSC to display an image according to an electric field generated by the first and second electrodes. The protective layer covers the second electrode and seals the TSC. The display apparatus having the above structure is manufactured by forming the first electrode, a sacrificial layer and the second electrode and forming the image display part by removing the sacrificial layer.

Abstract: A display device and a method for fabricating the display device are provided. The display device includes a transparent circuit substrate for use as a touch screen, the transparent circuit substrate includes a transparent substrate, a Polymer Dispersed Liquid Crystal (PDLC) coating layer formed on the transparent substrate, an electrode layer provided on the PDLC coating layer, for applying current to the PDLC coating layer, and an insulation layer provided on the electrode layer.

Abstract: An array substrate, a touch display panel and a touch display device. The array substrate includes: a substrate; a pixel electrode layer; a common electrode layer, which comprises a plurality of common electrode blocks, wherein the common electrode blocks are operable as touch electrodes; a wiring layer, comprises a plurality of wirings, wherein each of the wirings is electrically connected with a corresponding one of the common electrode blocks, and at least one wiring is each overlapped with at least one common electrode block electrically insulated therefrom; and first bridge structures and auxiliary electrodes disposed in the pixel electrode layer, wherein each first bridge structure is configured for a connection between the wiring and the common electrode block, and each auxiliary electrode is connected with one of the wirings and disposed above the common electrode block insulated from and overlapped with the wiring.

Abstract: A light diffusion member includes a substrate that has optical transparency, a light diffusion portion that is formed with a prescribed height on one surface of the substrate, a light shielding layer that is formed with a thickness less than the height of the light diffusion portion in another region of the one surface of the substrate than the light diffusion portion, and an antiglare layer that is formed on the other surface of the substrate. The light diffusion portion includes a light emission end surface that contacts with the substrate, a light incident end surface that faces the light emission end surface and has a larger area than an area of the light emission end surface, and a side surface that is formed between the light emission end surface and the light incident end surface, and the antiglare layer includes a binder layer and plural light diffusion particles that are dispersedly arranged in the binder layer.

Abstract: A liquid crystal display includes a first pixel, a second pixel, and a third pixel each displaying a different color. A first data line is positioned between the first pixel and the second pixel, and a second data line is positioned between the second pixel and the third pixel. A first pixel electrode, a second pixel electrode, and a third pixel electrode are respectively positioned in the first, second, and third pixels. An interval between the first pixel electrode and the first data line is larger than an interval between the second pixel electrode and the first data line. An interval between the second pixel electrode and the second data line is smaller than an interval between the third pixel electrode and the second data line.

Abstract: A liquid crystal display includes: a first insulating substrate; thin film transistors positioned on the first insulating substrate, and connected to gate lines and data lines which cross each other while being insulated; pixel electrodes connected to the thin film transistors; a second insulating substrate spaced so as to face the first insulating substrate; light blocking members positioned on the second insulating substrate; a common electrode positioned on the light blocking member; and a liquid crystal layer injected between the pixel electrode and the common electrode, in which one pixel includes the thin film transistor and the pixel electrode, and the plurality of pixels are disposed to be symmetric to a y-axis.

Abstract: A display panel and a liquid crystal display are disclosed. The display panel includes an upper polarizer, a lower polarizer, a first substrate and a second substrate disposed oppositely between the upper polarizer and the lower substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a quantum dot layer disposed at a side of the second substrate which is far away from the liquid crystal layer, and a protection layer for protecting the quantum dot layer, disposed between the quantum dot layer and the lower polarizer. The quantum dot layer is disposed at a side of the second substrate far away from the liquid crystal layer, and the protection layer is disposed between the quantum dot layer and the lower polarizer. The protection layer is used for preventing the quantum dot layer from being oxidized. The color gamut of LCD can be increased.

Abstract: A display panel, a display module and a display method thereof, and a display device are provided. The display module includes a backlight module and a display panel. A driving circuit and a photosensor are provided on the display panel, and the photosensor is electrically connected with the driving circuit. When the backlight module receives a backlight control signal, the backlight module emits light based on a light emission frequency indicated by the backlight control signal, and the backlight control signal is converted from a display signal output from a host. The photosensor detects an optical signal generated by the backlight module, converts the optical signal into an electric signal, and transmits the electric signal to the driving circuit, such that the driving circuit drives the display panel to display an image.

Abstract: A liquid crystal display includes a first panel including a first electrode, which includes side electrodes in edge areas of a pixel, a central electrode connected to the side electrodes and disposed in a central area of the pixel, and fine branches, some of which are connected to the side electrode, a second panel in which a cutout, which corresponds to the first electrode and divides the fine branches, the central electrode and the side electrode into domains is defined, and which includes a second electrode, which is separated by the cutout and corresponds to each of the domains, where second slit patterns, which are provided by partially cutting out ends of the fine branches, separate the side electrodes and the fine branches from each other, and extend in parallel to a longitudinal direction of the side electrodes are defined in the first panel.

Abstract: Provided is a method of manufacturing new liquid crystal display device according to an embodiment of the present invention. Firstly, an alignment film is formed on a substrate. The alignment film is divided into a first alignment film formed using, as a precursor, liquid-state polyimide that contains a photodecomposition substance and a second alignment film formed using, as a precursor, a polyamic acid that does not contain a photodecomposition substance. UV light is irradiated to the alignment film, and decomposed substances formed by irradiation of the UV light is removed by an at least two-step removing process. By the method of manufacturing a liquid crystal display device according to the exemplary embodiment of the present disclosure, bright spots are minimized in pixels and a brightness of black is lowered, so that a liquid crystal display device with a high contrast ratio can be realized.

Abstract: A manufacturing method of a liquid crystal panel is provided with steps of: providing an array substrate having a first electrode with a plurality of slots and a second electrode thereon, and a color filter substrate; applying a first photo alignment film to the array substrate, and performing a first irradiation treatment on the first photo alignment film to have a first pretilt angle; applying a second photo alignment film to the color filter substrate, and performing a second irradiation treatment on the second photo alignment film to have a second pretilt angle antiparallel to the first pretilt angle; sealing a liquid crystal molecule and a photopolymerizable monomer within a space between the first photo alignment film and the second photo alignment film to form a liquid crystal panel; and performing a third irradiation treatment on the liquid crystal panel to carry out a polymerization of the photopolymerizable monomer.

Abstract: A liquid crystal display (“LCD”) device includes a first substrate and a second substrate each having a display area and a non-display area, a liquid crystal layer between the first substrate and the second substrate, a sealing portion in the non-display area, and a light shielding portion having a first aperture between the display area and the sealing portion.

Abstract: A display apparatus includes a first base substrate including an effective area and a pad area adjacent to the effective area, a second base substrate on the first base substrate to overlap the effective area and expose the pad area of the first base substrate at a side surface of the second base substrate, a spacer on the exposed pad area of the first base substrate and facing the side surface of the second base substrate, the spacer being spaced apart from the side surface of the second base substrate, a sealant between the spacer and the side surface of the second base substrate to contact both the spacer and the side surface of the second base substrate, and an optical film on the second base substrate, the optical film extended further than the side surface of the second base substrate to overlap the sealant and the spacer.

Abstract: Disclosed is a liquid crystal display device including first and second substrates, each of the substrates having a display area and a non-display area; a liquid crystal layer between the first and second substrates; a column spacer in each of the display area and the non-display area on the first substrate; and a thin film layer stack in each of the display area and the non-display area on the second substrate, wherein a distance from the second substrate to an end of the thin film layer stack in the display area is identical to a distance from the second substrate to an end of the thin film layer stack in the non-display area.

Abstract: A liquid crystal display includes a first panel including a first electrode which includes a central electrode disposed in a central region of a pixel, a micro-branch part extending in a direction from at least one side of the central electrode, a peripheral electrode connected to an end of part of the micro-branch part, and a corner pattern provided in a corner region of the pixel, a second panel including horizontal and vertical incision parts which divide the micro-branch part, the central electrode and the peripheral electrode of the first electrode into a plurality of domains and a second electrode which is divided corresponding to plurality of domain regions, and where in the first panel, the peripheral electrode adjacent to the corner pattern is disposed on at least one of an edge region of the pixel in a direction parallel to the horizontal or vertical incision part.

Abstract: A liquid crystal display device includes: a first substrate and a second substrate opposite to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line extending in a first direction on the first substrate; a data line extending in a second direction intersecting the first direction on the first substrate; a first electric field generating electrode on the first substrate; and a second electric field generating electrode on the first substrate, wherein the second electric field generating electrode includes a stem electrode extending in parallel to the data line and branch electrodes extending from the stem electrode forming a predetermined angle with respect to the gate line, and an interval between the stem electrode and a data line adjacent thereto differs from an interval between the branch electrodes and a data line adjacent thereto.

Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.

Abstract: A pixel structure, including pixels arranged in a matrix. Each pixel includes sub-pixels arranged along a row direction, including first type sub-pixels and at least one second type sub-pixel. The sub-pixels in different rows are arranged alternately such that each sub-pixel column includes the same numbers of the second type sub-pixels. Each sub-pixel has a color resist and a photo spacer disposed thereon. The color resists of the second type sub-pixels have a sectional difference from the color resists of the first type sub-pixels, and the sectional difference is greater than a height of the photo spacer of each of the first type sub-pixels. For each second type sub-pixel, a photo spacer (PS) stage is extended from a corresponding common voltage line, and the color resist is disposed on the corresponding PS stage to form the sectional difference. Thus, each common voltage line has the same number of PS stages.

Abstract: A display device includes a transparent substrate; a plurality of electro-conductive polarizers disposed on the transparent substrate; an insulating layer disposed on the plurality of electro-conductive polarizers; and a plurality of gate lines disposed on the insulating layer, wherein each of the plurality of electro-conductive polarizers is coupled to each of the plurality of gate lines.

Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode positioned on the first substrate, connected to the thin film transistor, configured to be applied with a first voltage, and including a first sub-pixel electrode including a first sub-region and a second sub-region and a second sub-pixel electrode configured to be applied with a second voltage; a protrusion electrode protruding from the pixel electrode to overlap the data line; and an insulating layer positioned on the first sub-region of the first sub-pixel electrode and positioned under the second sub-pixel electrode and the second sub-region of the first sub-pixel electrode, wherein the first sub-region of the first sub-pixel electrode overlaps the second sub-pixel electrode.

Abstract: The present invention provides a display device and a display control method of the display device, so as to improve transmittance of the light emitted from the display device itself in an indoor environment. A display device provided by the present invention includes a display panel and a quarter-wave layer disposed at a light outgoing side of the display panel, the display device further includes: a liquid crystal structure disposed at a side of the quarter-wave layer away from the display panel, the liquid crystal structure presenting a polarization state or a transparent state under different ambient light intensity conditions.

Abstract: A display panel includes a display layer and two electrophoresis layers; the display layer is located between the two electrophoresis layers; the display layer has two display surfaces; each of the two electrophoresis layers comprises a plurality of electrophoresis units, and states of the electrophoresis units include transparent state and non-transparent state. The display panel can implement single-side display, two-side display and completely-transparent display and has a simple structure, thereby leading to a reduced thickness.

Abstract: Electrophoretic displays with an electrophoretic medium having charged pigmented microparticles are disclosed. The microparticles are charged linking molecules polymerized with chromophores of various colors so that microparticles in a variety of colors may be produced. Methods for producing the microparticles and using the microparticles in an electrophoretic display are also disclosed. Such microparticles may be provided separately, or kits may be provided for producing the microparticles.

Abstract: A technique, comprising: providing a pixelated display unit comprising an array of pixels, wherein the optical output for each pixel is independently controllable; applying a first color filter overlay to a viewing surface of said pixelated display unit, said first color filter overlay defining a first color pattern including one or more areas of a single color continuously extending over a plurality of pixels; operating said pixelated display unit to produce regions of differing brightnesses within said first color pattern; peeling said first color filter overlay from said viewing surface of said display unit; applying a second color filter overlay to said viewing surface of said display unit, said second color filter overlay defining a second color pattern including one or more areas of a single color continuously extending over a plurality of pixels; and operating said pixelated display unit to produce regions of differing brightnesses within said second color pattern.

Abstract: An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first PN junction on a silicon-on-insulator substrate and a second waveguide comprising a second PN junction on the silicon-on-insulator substrate. The second PN junction is a replica of the first PN junction shifted with a distance. The apparatus further includes a first source electrode and a first ground electrode coupled respectively with the first PN junction and a second source electrode and a second ground electrode coupled respectively with the second PN junction. The apparatus additionally includes a third ground electrode disposed near the second PN junction at the distance away from the second ground electrode, wherein the first ground electrode, the second ground electrode, and the third ground electrode are commonly grounded to have both PN junctions subjected to a substantially same electric field varied in ground-source-ground pattern.

Abstract: Efficient harmonic light generation can be achieved with ultrathin films by coupling an incident pump wave to an epsilon-near-zero (ENZ) mode of the thin film. As an example, efficient third harmonic generation from an indium tin oxide nanofilm (?/42 thick) on a glass substrate for a pump wavelength of 1.4 ?m was demonstrated. A conversion efficiency of 3.3×10?6 was achieved by exploiting the field enhancement properties of the ENZ mode with an enhancement factor of 200. This nanoscale frequency conversion method is applicable to other plasmonic materials and reststrahlen materials in proximity of the longitudinal optical phonon frequencies.

Abstract: A lens cover includes a housing defining an optical aperture. A pair of opposed lens cover blades are each pivotally mounted to the housing at a common pivot point. A biasing member biases the blades apart from one another about the pivot point to uncover the optical aperture in an open position. A pair of magnetic members is included, each magnetic member being mounted to a respective one of the blades to bias the blades together to cover the optical aperture in a closed position.

Abstract: There is provided a lens barrel that can easily and reliably prevent an erroneous operation at the time of switching of a manual focus mode. A lens barrel body houses an imaging optical system including a focus lens. A focus operation ring rotates integrally with a first connection ring about an optical axis of the imaging optical system. A second connection ring is movable between an engagement position at which the second connection ring is engaged with the first connection ring and a cam ring and a disengagement position at which the second connection ring is not engaged with both of the first connection ring and the cam ring. A switching-operation ring is movable between a rotation-restriction position at which the switching-operation ring moves the second connection ring to the engagement position and a rotation-allowable position at which the switching-operation ring moves the second connection ring to the disengagement position.

Abstract: A projector includes a case, a system fan located in the case, a lamp securing module and a lamp. The lamp securing module includes a lamp holder and a lampshade integrated with the lamp holder. A plurality of heat conduction portions is located on the lampshade to be adhered to the lamp to guide the heat generated by the lamp to the lampshade, so that the system fan dissipates the heat from the lampshade. The disclosure further offers a heat dissipating method for the projector.

Abstract: Disclosed is a light source apparatus including a light source part having a lead and a light emitting part for emitting light with a current from the lead; a substrate having a wiring part electrically connected to the lead for supplying a current to the lead; a base part having a first surface connected to the light source part, a second surface which is connected to the substrate and located on a side opposite to the first surface, and a through-hole penetrating through the first and second surfaces, in which the lead is inserted; and a vibration suppression mechanism including a vibration suppression part having a side wall portion inserted to the through-hole in such a manner that the side wall portion surrounds the lead, the vibration suppression part being connected to the substrate, and a fixing part for fixing the lead to the side wall portion.

Abstract: A projection device comprising, a red light source, a green light source, and a blue light source which can emit red, green and blue light respectively, a beam combiner which is configured such that it can combine light beams; a means for collimating the light emitted from the red, green and blue light sources to provide red, green and blue collimated light beams, an optical modifier means, which is arranged such that the optical modifier means can receive the red, green and blue collimated light beams, and wherein the optical modifier means is configured to modify cross sectional dimensions of the red, green and blue collimated light beams to provide red, green and blue projection beams each of which has a circular cross section, and wherein the optical modifier means is configured, and the distances between the light sources and means for collimating are set, such that the dimensions of the circular cross sections of the red, green and blue projection beams are equal at a predetermined distance from the pro

Abstract: A projection video display device, which enlarges and projects an image from an image-displaying means, has a housing and a raisable/lowerable mirror and a power supply, a light source, and a lens unit inside the housing. The raisable/lowerable mirror covers a projection-light opening formed in the top surface of the housing and able to rotate with respect to the housing, and has a convex mirror on the inside surface thereof. The raisable/lowerable mirror covering the top surface of the housing forms a smoothly connected, smooth, convexly curved surface with no height difference between the edge of the raisable/lowerable mirror and the front edge of the opening, and a half-bowl-shaped concavity is formed on at least one side of the raisable/lowerable mirror in the direction of the axis of rotation thereof.

Abstract: A portable screen combined with a rotary supporter, which is used in a small projector or a mobile phone into which a projector is embedded. The support plate is provided with the rotary supporter and a rotating fixing plate so that the screen can be easily installed and carried. The material area can be reduced to ½ or less and cost for manufacturing can be reduced ½ or less based on the screen and further weight of the screen can be reduce ½ or less.

Abstract: Provided is a film for a transparent screen which can clearly display merchandise information, advertisement, or the like on a transparent partition or the like by projection without compromising the transmission visibility. A film for a transparent screen according to the present invention includes: a resin layer; and inorganic particles at least a portion of which is contained in an aggregated state in the resin layer, wherein primary particles of the inorganic particles have a median diameter of 0.1 to 50 nm and a maximum particle size of 10 to 500 nm, and the content of the inorganic particles is 0.015 to 1.2% by mass with respect to the resin.

Abstract: According to one embodiment, a photomask manufacturing method for patterning a multilayer film into a mask pattern in the multilayer film is provided. The photomask manufacturing method includes preparing a substrate including the multilayer film provided on the substrate, obtaining an amount of position variation before and after the multilayer film is patterned if a position of the mask pattern is deviated before and after patterning the multilayer film, forming the mask pattern at a position deviated by the amount of the position variation from a target position, if the multilayer film is patterned and a pattern of the multilayer film is formed at the target position, and patterning the multilayer film with the mask pattern.