Abstract: Electronic equipment with displays may be provided. A first display may be mounted in a first housing and a second display may be mounted in a second housing that is adjacent to the first housing. The first housing may rotate relative to the second housing about a hinge axis. The first housing may be a lid and the second housing may be a base housing that is coupled to the lid by a hinge. A first display may be mounted in the first housing and a second display may be mounted in the second housing. Polarizer layers and other optical layers in the displays may be configured to provide a viewer with the ability to view images on the displays while wearing vertically polarized sunglasses and to suppress reflections of light emitted by the first display off of the second display.

Abstract: In a front panel in which a design sheet, a touch panel, and a metal sheet are integrated, the touch panel is bonded to a back face of the design sheet with an optical transparent double-sided tape. The metal sheet is formed in a frame shape to surround a periphery of the touch panel and to have an outer shape which is identical to an outer shape of the design sheet and is bonded to the back face of the design sheet with an adhesive or a double-sided tape.

Abstract: The present invention relates to an apparatus which allows producing elements with individually patterned anisotropic properties, where the pattern may vary from element to element. An apparatus according to the invention comprises a support for a substrate and an exposure unit for providing spatially modulated aligning light with a first polarization plane, wherein the exposure unit contains a light source, a spatial light modulator, which can be controlled electronically, for example by a computer, and a projection lens. The present invention furthermore relates to a method for fast production of elements with individually patterned anisotropic properties using such an apparatus.

Abstract: The rendering control unit controls the laser light source unit in such a way that a display image is rendered in a range smaller than a scan range of the scan mirror unit based on input display image data. The detection unit detects a range to be a reference for setting a laser beam output position for adjusting an output of the laser beams based on the display image data. The output adjusting control unit controls the laser light source unit in such a way that the laser beams for adjusting an output of the laser beams are output at a position outside the range where the display image is rendered in the scan range of the scan mirror unit, and the position is based on the range detected by the detecting unit.

Abstract: A short-distance optical amplification module and a near-eye display optical module using the same in the present invention relates to an optical amplification module applicable for short distance and an optical module using the same for near-eye display. The purpose of the present invention is to provide an optical amplification module for large-multiple amplification within a short distance (less than 5 cm) and a near-eye display optical module using the same to achieve super large field of view within a short distance (less than 3 cm). The short-distance optical amplification module in the present invention comprises a first 45 degree phase delay sheet (2), a partial-transmission and partial-reflection curved lens (4), a second 45 degree phase delay sheet (5) and a reflective polarizing sheet (6) which are sequentially arranged.

Abstract: A rearview assembly for a vehicle includes a housing for attachment to the vehicle, a glass element disposed in the housing and a display disposed behind the mirror element in the housing. The display contains a light source for emitting light, a first brightness enhancement film having a first plurality of prismatic elements extending in a first direction and positioned to receive light emitted from the light source, a diffuser configured to transmit about 97% of light from the first brightness enhancing film, a second brightness enhancement film having a plurality of prismatic elements extending in a second direction and positioned to receive light exiting the diffuser, and a display element disposed to receive light from the second brightness enhancement film with the display element having a second plurality of prismatic elements extending in a second direction. The first direction is substantially vertical and the second direction is substantially horizontal.

Abstract: A head-up display device comprises a reflective mirror mounting bracket having an accommodation space; a reflective mirror arranged on the reflective mirror mounting bracket, receiving a real image and reflecting the real image to generate a reflected image; and a concave imaging mirror mounting bracket accommodating a concave imaging mirror, wherein the concave imaging mirror is coated with an antireflection film on one side and coated with a semi-transmitting film on the other side, reflects the reflected image of the reflective mirror and presents a distant magnified virtual image. The present invention is characterized in a small size; no need to install the device inside the instrument panel system; directly using an existing display device to generate a distant magnified virtual image; and easiness for users to install the device.

Abstract: An optical display system configured to transmit light along a light path to a user's eye, the display system comprising a circular polarizing reflector configured to reflect light with a first polarization from an image source, a quarter wave plate downstream of the circular polarizing reflector in the light path and configured to rotate the polarization of the light to a second polarization, and a curved linear polarizing reflector downstream of the quarter wave plate and configured to reflect the light back through the quarter wave plate along the light path in the direction of the circular polarizing reflector. The quarter wave plate further configured to rotate the polarization of the light received from the curved linear polarizing reflector to a third polarization and the circular polarizing reflector further configured to receive said light from the quarter wave plate and transmit the light toward the user's eye.

Abstract: The present invention describes a display system. The display system includes a display, the display including a display screen capable of operating in a transparent mode; a lighting characteristic assessment component for determining the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen; and an adaptive lighting control component for controlling of an at least one lighting source and the lighting characteristics of the content on the display screen, wherein based on a comparison of the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen, modifying at least one of the lighting characteristics of the content on the display screen or the lighting characteristics of the at least one lighting source.

Abstract: An image projector includes a spatially-interleaved polarization converter having an input and output lenslet array, and may transmit light thereon as converted linearly-polarized light. The image projector also includes a lens unit and a projector assembly having a pixel array and being capable of reflecting the converted light. The output lenslet array, the lens unit, and the projector assembly form an imaging system that images the input lenslet array to a top surface of the pixel array. A method for converting light to an output light beam having a single common polarization state includes transmitting the light as a plurality of beamlets each having an s-polarized component and a p-polarized component, splitting each beamlet into a transmitted p-polarized beamlet and a reflected s-polarized beamlet, converting each p-polarized beamlet to a first s-polarized output beamlet, and spatially interleaving the s-polarized beamlets with the first s-polarized output beamlets.

Abstract: An electronic device is provided. The electronic device includes a bezel area disposed on an edge of a display area, a first component, a second component which is spaced apart from the first component, and an electrical connection device electrically connecting the first and second components, wherein the electrical connection device is disposed through the bezel area. Therefore, the electrical connection device may be embodied in an existing space without a separate installation space, may be assembled easily, may prevent performance deterioration of other components due to interference and also may contribute to slimming and performance improvement of the electronic device.

Abstract: A head mounted display device that displays three dimensional images from a mobile device, which includes a strap that secures the head mounted display to the head of a viewer, a viewing assembly connected to the strap, that includes a housing, a mobile device holder, connected to the housing, a reflecting surface, connected to the housing, that reflects images displayed by the mobile device; and an eyepiece, connected to the housing, onto which the reflecting surface reflects the images.

Abstract: A video playing system includes a support, a screen mask, and a projecting device set on the support. The support includes a pair of rotating fasteners correspondingly set at two opposite sides of the support. The screen mask is rotatably connected to the rotating fasteners and covers a part of the support. The screen mask includes a inner projecting surface. The projecting device projects video onto the inner projecting surface.

Abstract: Aspects of the present invention relate to methods and systems for providing a high quality display images in see-through head-worn optics.

Abstract: A head-up display, including an image source and a mirror positioned along parallel main planes and separated by a first distance, the mirror being shaped to form virtual images of the images provided by the image source at a second distance from the mirror, greater than the first distance.

Abstract: A cover of a head up display and a housing including the head up display cover are provided. The cover of a head up display includes a cover member and a cover panel that is coupled with a lower portion of the cover member and has an elliptical reflecting curved surface that reflects external incident light. The cover and the housing allow the viewing region of a driver to be enlarged while satisfying reflection conditions which reflect external incident light under the elliptical cross-section of a driver's eye.

Abstract: According to one embodiment, an image display apparatus includes a light source array, a lens array, a transmission type display and a field lens. The light source array has a plurality of point light sources. The lens array is facing the light source array, and having a plurality of lenses, each of which corresponds to a first number of the point light sources. The transmission type display is facing the lens array and configured to display an image by light beams from the point light sources. The field lens is facing the transmission type display and configured to output light beams from the transmission type display in a first direction.

Abstract: An apparatus includes a light source, a display array, a light relay, a photodetector, and control circuitry. The light source is for providing lamp light during an ON-time of the light source. The display array is positioned to receive and selectively manipulate the lamp light. The light relay is positioned to receive the image light from the display array. Control circuitry is coupled to the light source for adjusting the light source and coupled to receive an output of the photodetector.

Abstract: A vehicular imaging and display system includes a rear backup camera at a rear portion of a vehicle, a video processor for processing image data captured by the rear camera, and a video display screen responsive to the video processor to display video images. During a reversing maneuver of the equipped vehicle, the video display screen displays video images captured by the rear camera. During forward travel of the equipped vehicle, the video display screen is operable to display images representative of a portion of the field of view of the rear camera to display images representative of an area sideward of the equipped vehicle responsive to at least one of (a) actuation of a turn signal indicator of the vehicle, (b) detection of a vehicle in a side lane adjacent to the equipped vehicle and (c) a lane departure warning system of the vehicle.

Abstract: Head-mounted display with an eye-tracking system and including a light-transmitting substrate (20) having two major surfaces and edges, optical means for coupling light into said substrate (20) by total internal reflection, partially-reflecting surfaces (22a-22c) carried by the substrate (20) that are not parallel with the major surfaces of the substrate (20), a near-infrared light source (78) and a display source (92) projecting within the photopic spectrum, wherein light from the light source (78) and light from the display source (92) are coupled into the substrate (20) by total internal reflection.

Abstract: The invention relates to a method and a presentation device for presenting information about the angle to a target to a wearer (2) by means of a display (1) worn by the wearer tracking movement of the wearer's head, the wearer's head movements being detected and the angle of the wearer's head relative to a target being indicated on the display. According to the invention, movements of the wearer's (2) head are detected independently of the target, the position of the wearer is determined locally, the position of the target is designated and the display is controlled on the basis of local information about the wearer's head movement, the wearer's position and the position designated as the target in order to indicate the angle of the wearer's head relative to the target.

Abstract: The technology provides for adjusting a see-through, near-eye, mixed reality display device for alignment with an inter-pupillary distance (IPD) of a user by different examples of display adjustment mechanisms. The see-through, near-eye, mixed reality system includes for each eye a display optical system having an optical axis. Each display optical system is positioned to be seen through by a respective eye, and is supported on a respective movable support structure. A display adjustment mechanism attached to the display device also connects with each movable support structure for moving the structure. A determination is automatically made as to whether the display device is aligned with an IPD of a user. If not aligned, one or more adjustment values for a position of at least one of the display optical systems is automatically determined. The display adjustment mechanism moves the at least one display optical system in accordance with the adjustment values.

Abstract: The present invention relates to a sectional dynamic-driving backlight module and a head-up display device thereof. The sectional dynamic-driving backlight module comprises an optical-directional lens unit and an optical-homogenizing unit. The optical-directional lens unit is provided for converging the light beams emitted by the light source assemblies in the backlight module into light beams with a smaller divergent angle, and the optical-homogenizing unit is used for further homogenizing the light beams, so as to make all display regions of the LCD show a uniform illumination. Therefore, all images showed on an eyebox of the driver are distinct. Besides, each of the light source assemblies consist a red-light LED chip, a green-light LED chip, a blue-light LED chip, and a white-light LED chip, and these LED chips may be controlled by a controlling PCB for lighting respectively or simultaneously, so as to achieve a sectional dynamic display.

Abstract: Provided is a head-up display (HUD) device capable of effectively preventing damage to a liquid-crystal display device due to entry of exterior light. A HUD device has a liquid-crystal panel, and is provided with a liquid-crystal display device for realizing a transparent display using light from a backlight, a control means for controlling the liquid-crystal display device, and an optical system for reflecting the display light outputted by the liquid-crystal display device onto a windshield. A flat mirror constituting the optical system allows infrared rays of incident light to pass behind the mirror and reflects the visible light. The HUD device is provided with an infrared-ray sensor positioned behind the flat mirror, and the control means reduces the brightness of the light of the backlight or extinguishes the backlight when the strength detected by the infrared-ray sensor exceeds a predetermined threshold.

Abstract: Provided is a display device for a vehicle that can, in a configuration in which the cost of parts is curbed, quickly raise the temperature of a laser light source (LD) in a low temperature environment, and quickly perform stable image output. The LDs (11, 12, 13) emit laser light (RGB) and an MEMS mirror (30) scans the laser light (RGB) and generates a display image (M). A convex mirror (70) reflects display light (L) indicating the display image (M) in an external direction via a translucent light-transmitting unit (90). An LD driving means (101) emits laser light (RGB) to the LDs (11, 12, 13) when the temperature is low, and causes the LDs (11, 12, 13) to perform self-heating driving for raising the temperature of themselves.

Abstract: Techniques are disclosed for creating optical systems and devices that provide through-sight information while enabling the optical systems and devices to maintain a small, lightweight form factor. According to certain embodiments of the invention, an optical assembly can include a liquid-crystal display (LCD) disposed between the two prism elements of a Schmidt-Pechan prism at a focal plane of the optical assembly. This allows the LCD to be used to display information by blocking light passing through the optical assembly. Additionally, a light-emitting display, such as a backlit LCD, light-emitting diode (LED) display, or organic LED (OLED) display, can be coupled at a surface of one of the two prism elements of the Schmidt-Pechan prism to provide additional information in low-light environments.

Abstract: In embodiments of a multiple waveguide imaging structure, an imaging structure includes a first waveguide for see-through viewing of an environment at a first field of view, and includes a second waveguide for see-through viewing of the environment at a second field of view. The first and second waveguides each include a polarizing beam splitter to reflect light that enters at a first polarization orientation angle in the respective first and second waveguides, and the polarizing beam splitters pass through the light that enters at a second polarization orientation angle. The imaging structure also includes a polarization switch to rotate the polarization of the light through the first and second polarization orientation angles.

Abstract: An eyewear display system includes a camera coupled to capture an image of an object in a surrounding environment. A projector is coupled to receive the captured image to output a projected image. A polarizing beam splitter optically coupled to receive the projected image and an actual view of the surrounding environment. The polarizing beam splitter is optically coupled to output a combined view of the projected image combined with the actual view of the surrounding environment. The combined image is to be directed to an eye of a user. An intensity controller is optically coupled between the surrounding environment and the polarizing beam splitter to controlling an intensity of the actual view of the surrounding environment received by the polarizing beam splitter.

Abstract: A HUD device includes a stepper motor, which rotates a reflection mirror for adjusting a display position of a virtual image. The stepper motor has an electric stabilization point and a mechanical stabilization point. A control system controls a drive signal for the stepper motor to change by a step angle at every predetermined period Ts in response to an adjustment instruction inputted from an adjustment switch. The control system continues to apply the drive signal until the electric stabilization point is attained even after the adjustment instruction is stopped to operate the stepper motor in a powered rotation mode. The stepper motor then operates in an inertia rotation mode toward the mechanical stabilization point is attained.

Abstract: A multifunction optical element including an image generating module that generates an image, and couples the image into a multifunction glass that has a coupling in area and a coupling out area. The image produced is coupled into the multifunction glass via the coupling in area, guided in the multifunction glass to the coupling in area, and coupled out via the coupling out area, in such a way that the user can perceive the coupled out image superimposed on the surroundings when the holding device is placed on the head of the user. The coupling out area has a Fresnel structure which receives light from the coupling-in-area via a folded beam path and couples the image out of the multifunction optical element. The coupling out element has an imaging property.

Abstract: The following invention relates to an improved lens apparatus for use in a head up display (HUD), particularly for providing HUD with a depth of field and more particularly with providing a secondary virtual image in a different colour so as to provide a warning message. The partially reflecting combiner has a first surface S1 located closest to a display, and a second surface S2, located furthest from the display, wherein the effective radius of curvature of surface S2>S1, so as to provide two non-coincident virtual images. The selection of antireflective coatings on the surfaces S2 and S1 allows the non-coincident virtual images to have different coloured virtual images.

Abstract: The invention provides a decentration optical system comprising at least five optical surfaces. The optical surfaces are each decentered with respect to an axial chief ray in the Y-Z plane in the XYZ coordinate space, and at least one surface is decentered in the X-Z plane orthogonal to the Y-Z plane. At least two of the multiple optical surfaces are rotationally asymmetric surfaces, and at least one of the at least two rotationally asymmetric surfaces is a rotationally asymmetric surface having an X odd-numbered degree term.

Abstract: Methods and devices for determining whether a head-mountable computing device is donned or doffed are disclosed. In one embodiment, a method is disclosed that includes receiving from at least one capacitive sensor data indicating a rate of change of capacitance, making a comparison of the rate of change of capacitance to a threshold rate of change of capacitance and, based on the comparison, determining whether the head-mountable computing device is donned or doffed. The method further includes, if the head-mountable computing device is donned, causing the head-mountable computing device to operate in a first state, and if the head-mountable computing device is doffed, causing the head-mountable computing device to operate in a second state, where the head-mountable computing device consumes less power in the second state than in the first state.

Abstract: A light guide plate receives light emitted from the light source, and emits the light from a light emitting surface. A prism sheet reflects light at a predetermined angle among the light emitted from the light emitting surface, allows the reflected light to enter the light guide plate, and transmits light at another angle. A polarization control element is provided between a 1/4 wavelength plate and a reflection-type liquid crystal display element so as to be parallel to the light emitting surface. The polarization control element splits the light emitted from the 1/4 wavelength plate into first polarized light allowed to transmit as illumination light that enters the reflection-type liquid crystal display element and second polarized light reflected so as to enter the light guide plate, and reflects the light modulated and emitted by the reflection-type liquid crystal display element toward an imaging lens.

Abstract: An image display device includes a laser source for emitting a laser beam, an image forming element which uses the laser beam to emit image light for displaying an image, a first diffraction element for diffracting the image light, and a controller for controlling a display position of the image on the basis of a wavelength of the laser beam and a temperature of the first diffraction element.

Abstract: An edge-lit waveguide-based backlighting apparatus for high-brightness microdisplays. In one example, the backlighting apparatus includes a waveguide having substantially parallel top and bottom surfaces and a side surface substantially perpendicular to the top and bottom surfaces and extending between the top and bottom surfaces along a periphery of the waveguide, a specularly reflective film disposed on and at least partially covering the bottom and side surfaces of the waveguide, and at least one light source disposed on the side surface and configured to emit light into the waveguide in a direction of a length of the waveguide, the waveguide being configured to direct the light out of an output region of the top surface of the waveguide.

Abstract: A near-eye display device includes (a) a display unit having a liquid-crystal-on-silicon (LCOS) display and a first polarizing beam splitter interface for (i) reflecting illumination light from an illumination module towards the liquid-crystal-on-silicon display and (ii) transmitting display light from the LCOS display based on the illumination light, and (b) a viewing unit having an imaging objective that forms an image of the LCOS display for the pupil based on the display light, and a second polarizing beam splitter interface for (i) reflecting reflected display light from the imaging objective towards the pupil and (ii) transmitting ambient light from an ambient scene towards a pupil, the second polarizing beam splitter interface and the first polarizing beam splitter interface being orthogonal to a common plane.

Abstract: A display method of forming an image by using a plurality of pixels includes projecting light beams from the plurality of pixels on a pupil of an eye of an observer, and each diameter of the light beams which are incident on the pupil is smaller than a diameter of the pupil. Moreover, a display apparatus which displays an image having a plurality of pixels includes a micro lens array having a lens corresponding to each pixel, and a plurality of light exit points is formed corresponding to each pixel. Furthermore, an electronic equipment has the display apparatus installed thereon.

Abstract: There is provided a wearable display comprising at least one Switchable Bragg Grating (SBG) device recorded in at least one Holographic Polymer Dispersed Liquid Crystal (HPDLC) layer. Each HPDLC layer is sandwiched between first and second transparent plates to which transparent electrodes have been applied. Each SBG device is characterized in that it provides a grating in a separate switchable region and is clear elsewhere. Each SBG device has a diffracting state and a non diffracting state. The transparent plates and HPDLC layers form a laminar structure which functions as a light guide. In one embodiment of the invention the display magnifies and forms a virtual image of information provided by an external image generator. In one embodiment of the invention the display and forms a virtual image of an image of information encoded in the SBG device.

Abstract: A headup display device includes a driving mirror configured to reflect a display light irradiated from an indicator to guide the reflected display light to a windshield of a vehicle. The driving mirror includes a base plate fixed to a bottom surface of a casing, a pair of opposite support plates which are upright on the base plate, a holder pivotally supported by the opposite support plates, a reflective mirror held by the holder, a driving motor configured to pivot the holder to change an angle of the reflective mirror, and a positioning projection provided on the support plate and protruding in a mounting direction of the base plate to the bottom surface of the casing. A holding recessed portion is formed on the casing to allow an insertion of the positioning projection therein and hold the positioning projection at a predetermined position.

Abstract: An image display apparatus includes an image forming device having pixels; a collimating optical system collimating light from the image forming device; and an optical device receiving, guiding, and outputting the collimated light as directional rays in different directions. The optical device includes a light-guiding plate; a first optical member reflecting or diffracting the light so as to totally reflect the light inside the light-guiding plate; and a second optical member causing the propagated light to emerge from the light-guiding plate. When a light ray emitted from a pixel located farthest from the center of the image forming device and a light ray emitted from a pixel located at the center of the image forming device pass through a front nodal point of the collimating optical system and are respectively incident on the collimating optical system and the light-guiding plate at angles ?1 and ?2, ?2>?1 is satisfied.

Abstract: Embodiments are described of a light guide including a proximal end, a distal end, a front surface and a back surface, an ambient input region on the front surface near the distal end, and an output region on the back surface near the distal end. A beamsplitter having a plurality of faces has one face optically coupled to the proximal end of the light guide, and a display is optically coupled to another face of the beamsplitter. A projector assembly is optically coupled to a face of the beamsplitter opposite the beamsplitter face that is optically coupled to the light guide. A reflecting element having optical power is positioned at the distal end of the light guide, and a distal optical element is positioned in the light guide near the distal end.

Abstract: A head-up display device includes an indicator configured to emit a display light, a lower casing to which the indicator is mounted, an upper casing which is mounted to an upper portion of the lower casing, a pair of support portions which are provided on the lower casing and extend toward the upper casing, guide grooves which are formed on the support portions at opposite sides thereof, and a reflective mirror which is inserted and mounted to the lower casing toward a bottom surface of the lower casing while both lateral edges of the reflective mirror are engaged with the guide grooves, to reflect the display light emitted from the indicator and guide the reflected display light to a windshield of a vehicle.

Abstract: A light-transmitting pane for displaying an image of a head-up display is provided. The light-transmitting pane includes a cholesteric liquid-crystal layer arrangement, which is arranged in the interior of the pane or is arranged on a surface of the pane. Depending on the polarization of the incident light, at least a portion of the light generated by an image generating device of a head-up display arrangement can be reflected on the cholesteric liquid-crystal layer arrangement such that the reflected light has a p-polarized fraction, which can be perceived through polarized sunglasses.

Abstract: A stereoscopic display device and a control method thereof are disclosed. A liquid crystal display (LCD) panel of the stereoscopic display device is configured to display left-eye frames and right-eye frames alternately. Each of the left-eye frames includes a left-eye sub-frame and a black sub-frame that are displayed by a first display region and a second display region alternatively. Each of the right-eye frames includes a right-eye sub-frame and a black sub-frame that are displayed by the first display region and the second display region alternately. The backlight module includes a first backlight and a second backlight.

Abstract: A vehicular rearview assembly comprising a light source illuminating the mirror system within the housing of the assembly. The light source is a layered structure including generally co-extensive optical elements such as a light-guiding element that accepts light from light emitters and distributes this light along an area that is not transverse with respect to a display of the assembly. Light distributed and outcoupled through the light-guiding element illuminates the whole display, while radiation from other emitters may traverse the light-guiding element in order to highlight respectively corresponding segments of the display. The display may be configured in a spatially-segmented fashion to increase brightness of displayed indicia.

Abstract: A headup display apparatus for vehicles is capable of suppressing deterioration of luminance of virtual images, while avoiding a cost increase. This headup display apparatus includes: a light emitting unit having at least a light emitting body that emits output light; a liquid crystal display which emits display light; a concave mirror which reflects the display light; and a housing which houses the light emitting unit, the liquid crystal display, and the concave mirror. The output light that has been emitted from the light emitting body, and the display light that has been reflected by the concave mirror are radiated to a windshield through a translucent cover, and a virtual image obtained by means of the radiation is visually recognized by a driver. The light emitting unit is disposed inside of the housing such that the light emitting unit faces the windshield with the translucent cover therebetween.

Abstract: An aircraft optical display system for implementing an enhanced vision system based on light available within the flight deck of an aircraft. The display system includes a visible light imager configured to receive light within a spectral range defined by the photon transmissivity of windshield of the aircraft and generate image data. The system further includes a combiner configured to enable viewing of the world outside of the combiner, and allowing viewing of an enhanced vision image. The system yet further includes an image processing system configured generate an enhanced vision image representative of an external scene to the aircraft based at least in part on the image data from the visible light imager, wherein the enhanced vision image is conformally mapped onto the combiner.

Abstract: A head-up display device includes an indicator configured to emit a display light, a lower casing to which the indicator is mounted, an upper casing which is mounted to an upper portion of the lower casing, a pair of support portions which are provided on the lower casing and extend toward the upper casing, guide grooves which are formed on the support portions at opposite sides thereof, and a reflective mirror which is inserted and mounted to the lower casing toward a bottom surface of the lower casing while both lateral edges of the reflective mirror are engaged with the guide grooves, to reflect the display light emitted from the indicator and guide the reflected display light to a windshield of a vehicle.

Abstract: Embodiments are disclosed herein that relate to compact optical systems for incorporation into near-eye display devices. For example, one disclosed embodiment provides a near-eye display system may comprising a light source, a first polarizing beam splitting surface configured to receive light from the light source, a minor configured to reflect light passed by the first polarizing beam splitting surface, and a quarter wave plate positioned between the first polarizing beam splitting surface and the mirror. The near-eye display system may further include a second polarizing beam splitting surface positioned at an angle relative to the first polarizing beam splitting surface and a microdisplay configured to produce an image via light received from the second polarizing beam splitting surface.