Abstract: A camera includes one or more spectral illuminators, a tunable optical filter optically intermediate the one or more spectral illuminators and a scene, and a sensor array. The one or more spectral illuminators are configured to emit active spectral light. The tunable optical filter is dynamically adjustable to change a selected sub-band of the active spectral light that illuminates the scene. The sensor array includes a plurality of sensors each configured to measure spectral light reflected from the scene in the selected sub-band.

Abstract: Embodiments of the present invention provide a display substrate, a fabricating method thereof, and a display panel. The display substrate includes a substrate, a display structure layer disposed on the substrate, and an alignment layer. A grating polarizing layer is disposed in the display structure layer, and an optical alignment direction of the alignment layer is parallel to or perpendicular to a transmission axis direction of the grating polarizing layer.

Abstract: An on-board display device installable in a vehicle cabin of a vehicle includes a liquid crystal panel and a light source. The liquid crystal panel displays an image of an outside of the vehicle, the image having been captured by a camera. The light source illuminates the liquid crystal panel. A direction of maximum luminance of the light source is a direction passing through an inside of an eye range preset in the vehicle. An equi-luminance line has a shape longer in a second direction that intersects a first direction than in the first direction in a luminance distribution map that represents luminance of the light source in each direction represented by a polar angle and an azimuth angle.

Abstract: In an electro-optical device, a first ion trap electrode, a second ion trap electrode, and a third ion trap electrode are provided between a pixel region and a sealing material, the first ion trap electrode, the second ion trap electrode, and the third ion trap electrode are applied with signals whose phases are shifted by 120° from each other. Since a diffusion preventing portion in which the thickness of an electro-optical layer is thinner than the thickness of the pixel region is provided between a pixel electrode and the first ion trap electrode, ionic impurities are less likely to diffuse into the pixel region even if application of a potential to an ion trap electrode is paused.

Abstract: A touch panel includes a substrate and a first sensor element disposed on the substrate. The first sensor element includes a light-shielding conductive layer, a first transparent conductive layer, a first photosensitive layer, and a first electrode electrically connected to the first photosensitive layer. The light-shielding conductive layer and the first transparent conductive layer are interposed between the first substrate and the first photosensitive layer. A transmittance of the light-shielding conductive layer is smaller than a transmittance of the first transparent conductive layer.

Abstract: A key module including a base, a circuit layer, at least one light-transmission key body, and a display panel is provided. The circuit layer is disposed at the base and has at least one input portion. The light-transmission key body has an abutting end and a pressing end opposite to each other. The abutting end abuts the base, and the light-transmission key body is adapted to be pressed downward by taking the abutting end as a rotation axis, such that the pressing end presses the input portion. The display panel is disposed at the base and has at least one display region, the display region is aligned with the light-transmission key body, and an image displayed on the display region by the display panel is changeable.

Abstract: A backlight module and a liquid crystal display device are disclosed. The backlight module comprises a backlight source, a beam splitter and a light beam conversion portion. The beam splitter converts light from the backlight source into a first and second polarization light beam. The light beam conversion portion converts the first polarization light beam into a third polarization light beam through total reflection, and outputs the second and third polarization light beam through a light exit side. Alternatively, the light beam conversion portion converts the first and second polarization light beam into a fourth and fifth polarization light beam through total reflection, and outputs the fourth and fifth polarization light beam through the light exit side. To this end, light from the backlight source is efficiently applied to irradiate a liquid crystal display panel, and the brightness of the liquid crystal display panel significantly improves.

Abstract: In a mirror display apparatus, a mirror optical element in which reflectance and transmittance vary in opposite directions to each other by electric driving is disposed on a front surface side of a monitor display device. An operation mode of the mirror display apparatus is switchable between a monitor mode and a mirror mode for use. A temperature sensor is installed to a mirror display apparatus. In the monitor mode, the temperature sensor is used for a temperature control of the monitor display device, or a temperature compensation control related to display quality, or the both. In the mirror mode in which the mirror optical element is in a reflectance-reduced reflection mirror state, the temperature sensor is used for a temperature compensation control of reflectance of the mirror optical element.

Abstract: A texture display device includes a display unit in which each pixel includes a condensing type element having light distribution at a first spread angle and a diffusing type element having light distribution at a second spread angle larger than the first spread angle, a pixel signal generation unit that generates a pixel signal based on image data and texture data of an object to be displayed on the display unit, and a control unit that controls light emission intensity of the condensing type element and the diffusing type element based on the pixel signal.

Abstract: Provide is a display device. The display device includes a watchcase, a first display screen and a flexible display component. The first display screen is arranged on a front side of the watchcase. The first display screen includes a first display surface. The flexible display component is arranged on a back face of the watchcase. The flexible display component may be bent along a first direction to be reused as a watchband. Moreover, in the condition that the flexible display component is reused as the watchband, a surface of the flexible display component facing away from the watchcase is a second display surface.

Abstract: This color calibration device is a color calibration device, calibrating colors in a captured image of a first imaging device between different imaging devices using a hologram emitting diffracted light at different frequencies corresponding to an observation angle, the color calibration device includes: a diffracted light spectral distribution calculation unit that obtains respective diffracted light spectral distribution of the diffracted light from the hologram; a camera sensitivity function estimation unit that estimates spectral sensitivity of the imaging device from the respective diffracted light spectral distribution of the diffracted light and each captured image of the diffracted light; and a color calibration unit that calibrates difference in color of the first imaging device relative to a second imaging device different from the first imaging device using the estimated spectral sensitivity.

Abstract: An ultrafast omnidirectional wireless data transfer apparatus and system. The ultrafast omnidirectional wireless data transfer apparatus includes an array of laser diodes, an array of fast detectors, and a connector for connecting to a sensor, a computer, and/or a network. The array of laser diodes, and the array of fast detectors are housed in a multifaceted geometry in order to provide communication coverage in all directions. In one aspect, each laser in the array of laser diodes operates at different wavelengths. In another aspect, the ultrafast omnidirectional wireless data transfer apparatus includes field programmable gate arrays. In yet another aspect, the ultrafast omnidirectional wireless data transfer apparatus includes an array of collimators that are connected to an optical combiner.

Abstract: An embodiment of a mind-view communication apparatus includes a first portable unit and a second portable unit. The first portable unit includes an eyeglass frame, at least one first optical unit disposed on the eyeglass frame for capturing at least one scene image corresponding to a field of view of a user, and at least one second optical unit disposed on the eyeglass frame for capturing at least one eye image corresponding to at least a portion of at least one eye of the user. The second portable unit is in communication with the first portable unit and includes at least one processor configured for receiving the at least one scene image and the at least one eye image, determining a direction within the field of view to which the at least one eye is directed based upon the at least one eye image, and generating a subset of the at least one scene image based on the determined direction.

Abstract: An embodiment of an image recording apparatus includes an eyeglass frame, at least one first optical unit disposed on the eyeglass frame for capturing a main scene image, and at least one second optical unit disposed on the eyeglass frame for capturing an auxiliary scene image. The first and the second field of view of the user at least partially overlap. The image resolution of the main scene image is lower than the image resolution of the main scene image and the field of view of the main scene image is larger than the field of view of the auxiliary scene image. The image recording apparatus further includes at least one processor for receiving the main and the auxiliary scene images, and generating a modified resolution copy of the main scene image based on the auxiliary scene image.

Abstract: A light projection apparatus is provided comprising: a source of light; a switchable grating on a first substrate; and a diffractive optical element. Light is diffracted at least once by the switchable grating and is diffracted at least once by the DOE.

Abstract: The present invention relates to a process of preparing a light modulation element of the PS-ULH (polymer stabilised ULH) type, which allows to reduce the operational voltage and allows to improve the switching time of the light modulation element.

Abstract: A reconstruction matrix used for calculating a hyperspectral data-cube includes rows of periodic functions. Each row of the reconstruction matrix corresponds to a selected wavelength and each column corresponds to a selected retardance of an interferometer. The periodic functions have as a parameter the selected wavelength of the corresponding row and are sampled at the selected retardances of each of the corresponding columns. An interferogram data-cube is obtained and includes an array of one or more simultaneously measured interferograms. Each row of the interferogram data-cube corresponds to one of the selected retardances and each column corresponds to a different interferogram from the simultaneously measured interferograms. A set of matrix-vector products for each of the interferograms is formed by multiplying the reconstruction matrix with a column of the interferogram data-cube to form the hyperspectral data-cube.

Abstract: A display device includes a display panel including a plurality of pixels, the display panel having a display area with the pixels thereon and a peripheral area adjacent to the display area on a plane, a driving circuit part at the peripheral area and configured to provide an electrical signal to each of the pixels, a main circuit part at the peripheral area, the main circuit part having at least one portion that is spaced apart from the driving circuit part on a plane, the main circuit part being configured to provide a driving signal to the driving circuit part and the display panel, and a first partition member at a space between the main circuit part and the driving circuit part.

Abstract: An electro-optical device includes a pixel electrode, a light shielding member disposed along an edge of the pixel electrode in a planar view viewed in a thickness direction that is a direction perpendicular to the pixel electrode, a first insulator that is provided in a region overlapped with at least the light shielding member in the planar view, and having light transmission, and a second insulator that is provided to be in contact with the first insulator on an opening region that is an inside surrounded by the light shielding member in the planar view, and having the light transmission and a refractive index higher than that of the first insulator, in which the second insulator configures a waveguide which reflects incident light incident on the opening region at an interface between the second insulator and the first insulator, and propagates the incident light inside the second insulator.

Abstract: The present disclosure relates to a window for a flexible display device, including: a first film including a transparent base film and a plurality of holes passing through the transparent base film; a second film overlapping the first film; a buffer layer between the first film and the second film to attach a first side of the first film and a first side of the second film; and a hard coated layer on a second side of the second film.

Abstract: A reflective holographic display apparatus and a display method thereof are provided. The reflective holographic display apparatus includes a front light source module, a display panel and a phase plate. The front light source module is configured to provide reference lights; the display panel is configured to adjust amplitude information of the reference lights, wherein the display panel includes a reflective layer and the front light source module is located at a light exit side of the display panel; and the phase plate is configured to adjust phase information of the reference lights and located at a light exit side of the reflective layer.

Abstract: A lidar device comprises: a laser emitting unit for including a plurality of VCSEL elements emitting a laser beam; a metasurface for including a plurality of beam steering cells arranged in a form of two-dimensional array by a row direction and a column direction, wherein the plurality of beam steering cells guide the laser beam by using nanopillars; wherein the nanopillars included in the plurality of beam steering cells form a subwavelength pattern, wherein the increase of an attribute related to at least one of the width, height, and number per unit length of the nanopillars is repetitive along the direction from the center of the metasurface to the position of the row corresponding to the plurality of beam steering cells.

Abstract: An optical device is provided. The optical device includes a substrate including a plurality of pixel units, a dielectric layer disposed on the substrate, a patterned light-transmitting layer disposed on the dielectric layer and corresponding to the plurality of pixel units, and a plurality of continuous light-shielding layers disposed on the dielectric layer and located on both sides of the patterned light-transmitting layer. A method for fabricating an optical device is also provided.

Abstract: The present disclosure provides a liquid crystal lens and liquid crystal glasses. The liquid crystal lens includes a cell defined by a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer arranged between the first substrate and the second substrate and having a uniform thickness between the first substrate and the second substrate; a transparent pattern layer at an outside of the cell and having a curved top surface and a flat bottom surface in contact with the second substrate; and a second transparent electrode arranged at the curved top surface and at the outside of the cell.

Abstract: According to one embodiment, a first substrate includes a first area, a second area, a third area, a fourth area and a fifth area in a planar view. In the first substrate, an organic insulating film is present in the second and the third areas, is present neither in the third area nor in the fifth area, and forms an adjustment area. A conductive film is provided on the organic insulating film, the third area, the fourth area and a part of the fifth area. A sealing material is present in a part of the second area, the third area, the fourth area and a part of the fifth area to attach the first substrate and a second substrate. A through hole penetrates the first and the second substrates.

Abstract: A Light-Emitting Diode (LED) illuminator-condenser capable of supplying bright-field, dark-field, fluorescence, oblique, and phase-contrast illumination under Köhler-like conditions. A single lens may be permanently focused on the specimen plane. Illumination conditions may be made by a combination of uniform LEDs, collimating masks and diffusers. LEDs may be arranged in one or more ring-shaped patterns.

Abstract: In one or more embodiments, a display device may display information via light emissions via a first orientation, and an anisotropic material, of the display device, may obscure the information along a first axis of the display device and within a first threshold angle. In one or more embodiments, it may be determined that the first orientation changes to a second orientation, and in response, the anisotropic material may obscure the information along a second axis of the display device and within a second threshold angle. In one or more embodiments, the anisotropic material may permit information along the first axis of the display device to be viewed by a person. In one or more embodiments, determining that the first orientation changes to the second orientation may be based at least on data from at least one of an electronic accelerometer, an electronic gyroscope, and an electronic magnetometer.

Abstract: A matrix-addressed tile comprises a tile substrate having a two-dimensional array of pixels arranged in rows and columns defining a contiguous pixel area that includes all of the pixels. A one-dimensional array of column-data lines electrically connected to columns of pixels and a one-dimensional array of row-select lines connected to rows of pixels are disposed on the tile substrate at least partially in the pixel area. At least one column-data line contact pad electrically connected to each of the column-data lines and at least one row-select contact pad electrically connected to each of the row-select lines are disposed at least partially within the pixel area and between at least two pixels. A matrix-addressed tiled system includes two or more matrix-addressed tiles electrically connected through the column-data line contact pads and row-select line contact pads.

Abstract: An apparatus includes a display stack comprising at least one layer to generate a digital display image. A front stack includes a position encoded contrast layer to provide a pattern of light in response to non-visible light applied to the position encoded contrast layer. The pattern of light encodes spatial information across a surface of the position encoded contrast layer. A hot mirror reflects the non-visible light applied to the position encoded contrast layer of the front stack and is optically transparent to visible light generated from the display stack.

Abstract: A carrier or manufacturing unit includes a combination of a flexible semiconductor device package, adhesive disposed on the flexible semiconductor device package and a rigid substrate disposed on the adhesive. The flexible semiconductor device package may be protected during transport and/or assembly by the rigid substrate. In a method of manufacturing an electronic product such as wearable technology that requires a flexible semiconductor device package, the unit can be transported to a work station and physically and/or electrically connected to another/other component(s) of the technology. Then the rigid substrate is removed.

Abstract: A method, computer readable medium, and system generate a low-latency image for display. The method includes the steps of receiving a portion of an image for display, selecting a pulse-width value for displaying the portion of the image, and driving a display device to present the portion of the image using a pulse-width value and pulse density modulation value. Logic circuits for implementing the method may be included in a graphics processing unit or within a display device. The portion of the image for display may be rendered based on real-time position information associated with a head-mounted display.

Abstract: A beam steering device includes a first active deflector. The first active deflector includes a first substrate with one or more electrodes, a second substrate with one or more electrodes, and liquid crystals located between the first substrate and the second substrate. The second substrate is distinct from the first substrate. The beam steering device also includes a passive deflector positioned parallel to the first active deflector. The passive deflector includes a third substrate, a fourth substrate that is distinct from the third substrate, and liquid crystals located between the third substrate and the fourth substrate. A method for separating zeroth order leakage with the beam steering device is also disclosed.

Abstract: A substrate for a display device and a display device including the same are disclosed. The substrate includes a first thin-film transistor including an oxide semiconductor layer, a second thin-film transistor spaced apart from the first thin-film transistor and including a polycrystalline semiconductor layer, and a storage capacitor including at least two storage electrodes. One of the at least two storage electrodes is located in the same plane and is formed of the same material as gate electrodes of the first thin-film transistor and the second thin-film transistor, and another one of the at least two storage electrodes is located in the same plane and is formed of the same material as source and drain electrodes of the first thin-film transistor and the second thin-film transistor. Accordingly, lower power consumption and a larger area of the substrate are realized.

Abstract: An apparatus comprising a hand-portable electronic device including a detection-and-ranging element configured to provide spatial information of one or more physical objects in a space around the hand-held portable electronic device for collision avoidance, the detection-and-ranging element configured to transmit one or more electromagnetic, wireless detection signals and configured to detect one or more reflections of said one or more electromagnetic, wireless detection signals from the one or more objects.

Abstract: An example of a game controller includes a key top of an operation button, a tubular light-guiding portion surrounding a periphery of the key top, a light-shielding portion surrounding a periphery of the light-guiding portion, an elastic member placed immediately below the key top and configured to allow light to pass therethrough, a switch placed below the elastic member, and an LED. The key top and the light-guiding portion are exposed through a surface of a housing of the game controller. Light from the LED is incident on the light-guiding portion and guided to a surface of the housing through the inside of the light-guiding portion. The light-guiding portion is surrounded by the light-shielding portion, and therefore, light does not come out to the periphery of the light-guiding portion. Consequently, it is possible to cause the periphery of the operation button to emit light in a ring-shaped manner.

Abstract: An irregular shape display having a hole according to the present disclosure may apply a partial cylinder-shaped guide member to a hole region while at the same time fastening between a guide member and a lower cover through a thread, thereby securing fastenability. The present disclosure provides an effect of preventing a rattle noise due to the detachment, splitting and component floating of an optical sheet as fastenability between the guide member and lower cover is secured.

Abstract: A backlight control method, a backlight module and a display apparatus are disclosed. The backlight control method comprises: dividing a backlight into N blocks; determining whether each of the N blocks satisfies a high current driving start-up condition or not according to a pixel signal in each input frame of image signal and determining blocks which satisfy the high current driving start-up condition as candidate blocks; setting blocks among the candidate blocks which are determined to be driven by high current as selected blocks in a case that power consumption of each frame of picture does not exceed total backlight power consumption without dynamic backlight control; and calculating backlight driving pulse width modulation duty ratios of the selected blocks according to a correspondence between brightness and pulse width modulation duty ratios, and transmitting the calculated backlight driving pulse width modulation duty ratios to a backlight driving circuit.

Abstract: A contact image sensor comprises: a light source providing a collimated beam; a detector and a switchable grating array comprising first and second transparent substrates sandwiching an array of switchable grating elements with transparent electrodes applied to said substrates, said substrates together providing a total internal reflection light guide. A first transmission grating layer overlays said first substrate. A second transmission grating layer overlays said second substrate. A quarter wavelength retarder layer overlays said second transmission grating layer. A platen overlays said quarter wavelength retarder layer; a polarization-rotating reflecting layer overlaying said first transmission grating layer. An input coupler for directing light from said light source into said light guide and an output coupler for extracting light out of said light guide towards said detector are also provided.

Abstract: An illumination apparatus includes light sources differing from one another in terms of light-emission color and voltage drop when identical current flows therein, switches in one-to-one correspondence with the light sources, a DC power supply circuit, and a control circuit. The control circuit performs a first control of the switches through a time division control method such that an on-period of each switch is not overlapped with that of any other switch. The control circuit also performs a second control to individually control at least one of a target current magnitude, flowing through each switch in the switched-on state, and a target on-period length of each switch, and to adjust a ratio of the plurality of light sources in terms of a product of the target current magnitude and the target on-period length.

Abstract: A device for reducing laser speckle using a micro scanner and a holographic diffuser. The micro scanner includes a first transparent optical substrate with an input surface and an output surface and a second transparent optical substrate with an input surface and an output surface and a variable refractive index medium sandwiched between the output surface of the first substrate and the input surface of the second substrate. Transparent electrodes are applied to the output surface of the first substrate and the input surface of the second substrate. The electrodes are coupled to a voltage generator. The input surface of the first substrate is optically coupled to a laser source. The input surface of the second substrate is configured as an array of prismatic elements. At least one of the input surface of the first substrate or the output surfaces of the second substrate is planar.

Abstract: Embodiments of the invention disclose a 3D display device and a driving method thereof. The 3D display device includes a display panel and a grating structure, when both eyes are parallel to a first direction, a pixel array of the display panel forms a plurality of first left-eye pixel regions corresponding to the left eye and a plurality of first right-eye pixel regions corresponding to the right eye by the grating structure; when both eyes are parallel to a second direction, the pixel array of the display panel forms a plurality of second left-eye pixel regions corresponding to the left eye and a plurality of second right-eye pixel regions corresponding to the right eye by the grating structure, the first left-eye pixel regions are the same as the second left-eye pixel regions, and the first right-eye pixel regions are the same as the second right-eye pixel regions.

Abstract: The present disclosure discloses a backlight module and a liquid crystal display device, the backlight module includes a light source; a spectrally selective element arranged in the light path between the light source to the light-emitting surface of the backlight module, is used to pass through the red, green and blue spectral and limit or block the remaining spectrum. Through the above, the present disclosure may increase the color gamut of the display device and improve the color saturation of the display device.

Abstract: An electronic device and a display device are provided. The electronic device includes the display device and an object to be shown. The display device includes a display panel, a first backlight module, and a second backlight module. The display panel has a transparent area corresponding to the object. The first backlight module is disposed with a gap to the display panel and generates first backlight to reach the display panel. The second backlight module has a prism sheet and a collimated illumination. The prism sheet is parallel to the display panel and corresponding to the transparent area, while the collimated illumination generates light reaching the prism sheet. The light is orientated by the prism sheet and becomes a second backlight before entering the transparent area.

Abstract: According to the invention, there is provided a circular polarizing filter for selectively transmitting circularly polarized light of any one sense of either right-handed circularly polarized light or left-handed circularly polarized light at a specific wavelength in which scattering transmittance/vertical transmittance when circularly polarized light of the sense of the specific wavelength enters from any one surface is less than scattering reflectance/regular reflectance when circularly polarized light of the other sense enters from the surface.

Abstract: A polarization rotator including a plurality of polarizer layers that are stacked along a general direction of radiation propagation. Each polarizer layers implements a wired grid pattern associated with respective extinction axis for extinction of radiation components that are polarized therealong. The extinction axes of consecutive polarizer layers are orientated differently so that polarization of radiation interacting therewith is rotated. The relative orientations of the polarizer layers are selected such that a tiling of a plurality of substantially identical polarization rotation unit cells is defined within the polarization rotator, where the unit cells are arranged with predetermined spatial periods A and B along two lateral axes. The polarization rotator may be coupled to an array of elements (e.g. antennas) arranged parallel to the tiling of unit cells, with respective spatial periodicities A? and B? that are integer multiples of the predetermined spatial periods A and B of the unit cells.

Abstract: A pixel structure for a liquid crystal display (LCD) device with multiple domain vertical alignment, including multiple pixels having liquid crystal molecules with a negative dielectric constant anisotropy. For each pixel, the pixel electrode and the common electrode are each divided into at least N corresponding domains, and each domain is formed by a directional nanowire grid polarizer (NWGP). The directional NWGP of each domain of the pixel electrode has a first planar direction. The directional NWGP of each domain of the common electrode has a second planar direction substantially perpendicular to the first planar direction of the corresponding domain of the pixel electrode. When the pixel is driven by a voltage difference, the directional NWGPs function as polarizers, such that an orientation of the liquid crystal molecules between the NWGPs is about (360/N) degrees from each of the first and second planar directions.

Abstract: A communication device constitutes part of an apparatus and communicates with other apparatuses. The communication device includes a case having an opening; a plurality of indicator lamps accommodated in the case, at a position corresponding to the opening; and an indicator lamp cover that is provided so as to be slidable in a direction in which the plurality of indicator lamps are arranged and that is used to adjust an opening degree of the opening.

Abstract: An optical device with variable focused beam pattern includes a first lens structure configured by arranging first lenticular lenses which are formed with liquid crystals or liquid crystal polymers having a first extraordinary refractive index axis direction and of which longitudinal axes are aligned with a first alignment direction, and a second lens structure laminated on a beam emitting surface of the first lens structure and configured by arranging second lenticular lenses which are formed with liquid crystals or liquid crystal polymers having a second extraordinary refractive index axis direction and of which longitudinal axes are aligned with a second alignment direction.

Abstract: In various embodiments, an optoelectronic component is provided. The optoelectronic component may include a first electrode having a first electrically conductive substance, a second electrode having a second electrically conductive substance, and at least one active substance. The active substance is formed within a current path of the first electrode and/or the second electrode, and the active substance is set up to convert the first electrically conductive substance and/or the second electrically conductive substance to an electrically nonconductive substance or region.

Abstract: Provided is a display device including a display unit and a mirror unit adjacent to each other, in which the display unit includes a first substrate, a thin film transistor formed on the substrate, a pixel electrode connected to the thin film transistor, a roof layer formed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween, and a liquid crystal layer filling the microcavity, and the mirror unit includes a second substrate, a first electrode formed on the second substrate, a second electrode formed on the first substrate to be spaced apart from the first electrode with a microcavity therebetween, and an electrochromic layer formed in the microcavity.