Abstract: A heads-up display comprises a monochrome display device for generating an image and an optical device for generating a virtual image from the image of the display device. The monochrome display device comprises a display and a backlight for illuminating the display from its backside. The backlight comprises a first light source emitting light of a first color, a second light source emitting light of a second color, a first light guide coupled to the first light source, and a second light guide coupled to the second light source. The first and second light guides are disposed in such close juxtaposition behind the display so that they illuminate together the entire backside of the display and illuminate a first region of the display associated with the first light guide with the first color and a second region of the display associated with the second light guide with the second color.

Abstract: A backlight module has a light guide plate and a plurality of light sources. The light guide plate includes a light exit surface, a plurality of light entrance surfaces round the light exit surface, and a plurality of light guide portions disposed on the bottom surface opposite to the light exit surface. The light guide portions corresponding to the same imaginary circle center constitute a concentric arc-shaped light guide portion set. The imaginary circle center of each light guide portion set is located at the outer side of the light entrance surfaces. Light rays projected to one of the light entrance surfaces from the imaginary circle center of each light guide portion set are guided to a light exit surface by the light guide portion set. The wavelength of the light ray projected by each light source is not equal to that of the light projected by another light source.

Abstract: A backlight assembly and an LCD having the same are disclosed to prevent wrinklings of optical sheets due to close contact of optical sheets or prism sheets. The backlight assembly includes multiple optical sheets disposed between a light guiding plate and a display unit, for the diffusion of light, collection of light and securing of horizontal viewing angle. The front surface or the rear surface of each of the optical sheets each has an embossing structure or a matte structure to decrease a contact area between the multiple optical sheets and to minimize frictions.

Abstract: A backlight unit includes a prism sheet (an optical path changing portion and a light gathering portion) having lenses and being disposed to face an output surface of a light guide member, and a plurality of second prism inclined surfaces that are inclined at a predetermined inclination angle with respect to the output surface. Further, a lens surface that gathers light from the second prism inclined surfaces toward a normal line direction of the output surface according to the second prism inclined surfaces is provided, and a central position of the lens surface in a transmitting direction of the light guide member is matched with a central position of its corresponding second prism inclined surface.

Abstract: An exemplary external electrode fluorescent lamp includes a tube filled with a discharge gas, and a first external electrode on an outer surface of the tube, the first external electrode having a line-like shape. Thus, the exemplary external electrode fluorescent lamp has a reduced non-fluorescent region and an enlarged fluorescent region.

Abstract: A light guide plate having a multi-periodic micro pattern, which can minimize chromatic dispersion, and an illumination apparatus for a display device employing the light guide plate are provided. The light guide plate includes a top surface and a micro pattern formed on the top surface and allowing light, which is incident from a first side surface of the light guide plate, to be emitted from the top surface. The micro pattern is a combination of at least two periodic patterns having different periods to reduce chromatic dispersion of light emitted from the top surface.

Abstract: The present invention is broadly directed towards a receiving container for an LCD apparatus for securing a lamp and lamp wiring connected to a lamp. The receiving container has features for substantially preventing the lamp wiring from being disconnected from the lamp. For example, a first through-hole for receiving the lamp wiring, a first trench, securing members, and securing projections are utilized to substantially prevent lamp wiring from being disconnected from a lamp. Additionally, the LCD apparatus is easily handled, dissipates heat effectively, and has a light weight.

Abstract: A backlight unit is adapted for increasing the brightness uniformity and life span of a light source, and a liquid crystal module using the same. A light unit includes a light source; a temperature sensor for sensing a temperature of the light source; a peltier device for increasing and decreasing the temperature of the light source; and a controller for controlling the peltier device in correspondence to an output of the temperature sensor.

Abstract: A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from each other. By generating a difference in the indices of refraction in the prism extension direction and the prism alignment direction orthogonal thereto, for the light incident on the light-transmitting film, the polarization component Lx oscillating in the prism extension direction and the polarization component Ly oscillating in the prism alignment direction can have different transmission characteristics.

Abstract: An illuminating display including a transparent substrate in the form of a sheet or slab having an upper face, a lower face and a plurality of edge faces. The edge faces are provided with an internally reflective treatment and at least one light source associated with the substrate, causing a relatively narrow beam of light rays to emanate into said substrate. At least one reflective surface arranged internally of said substrate to operatively internally reflect light rays from said at least one light source within the substrate. Either (or both) the upper face and the lower face having material in contact therewith for directing light from within the substrate out of a face. The display may be employed in combination with a liquid crystal display (LCD) assembly.

Abstract: A plurality of LEDs are arrayed in the X-direction, and a light-guide plate is provided facing the LEDs. A plurality of prisms extending in the Y-direction are formed on a light-receiving surface of the light-guide plate. A plurality of prisms are additionally formed on a light-emitting surface of the light-guide plate. Light emitted from the LED is thereby divided into a plurality of light beams by the prisms, and a portion of the light is condensed toward the prisms. Light that is condensed toward the prisms is divided in a plurality of directions and transmitted in the light-guide plate. When the light reaches another prism, the light is reflected by the prism and emitted from the light emitting surface.

Abstract: A direct type back light includes a case holding a plurality of lamps. The lamps may be “U” shaped and have curves arranged at a centerline of the case to face each other with a gap there between. A reflecting plate is positioned below the plurality of lamps. A luminance control sheet is provided above the reflecting plate and below the lamps in several of, or all of, the gaps. The luminance control sheet may have a lower reflectivity or a higher reflectivity than the reflecting plate to remove a bright line or a dark line in the center of the display, respectively.

Abstract: An exemplary optical guiding device for optically coupling a plurality of light beams having at least one laser beam, includes a light coupling lens, a light collimating lens, and an optical fiber. The light coupling lens and the light collimating lens are positioned apart along an optical path. The optical fiber is optically coupled to the light couple lens. External laser beam introduced by the optical fiber are optically coupled by the light coupling lens for collimating and mixing the light beams, then collimated by the at least one light collimating lens, and finally emitting out. A backlight module using the optical guiding device with colored semiconductor lasers and light transferring device are also provided. The backlight module has a good color performance, such as high color saturation.

Abstract: One embodiment of the invention proposes a light-emitting device comprising a radiation source for the emission of a radiation having at least a first wavelength, and an elongated, curved light-guiding body, into which the radiation emitted by the radiation source is coupled and which couples out light at an angle with respect to its longitudinal axis on account of the coupled-in radiation having the first wavelength.

Abstract: The invention provides a light exposure apparatus containing a light exposure control device for curing light sensitive adhesives. The light exposure apparatus includes a) a light source; b) a light transmitter for transmitting light from the light source; and c) a light intensity controlling component between the light source and the light transmitter. The light intensity controlling component includes a light regulator having a planar face between the light source and the light transmitter. The light regulator has opaque members having a continuously tapered width, on the face of the light regulator. Each planar member is spaced from adjacent planar members by a light transparent segment having a tapered width, on the face of the light regulator. The light regulator is mounted such that a portion of the opaque members and portion of the substantially light transparent segments are adjustably positioned between the light source and the light transmitter.

Abstract: An information display device illuminates a light pipe, and includes a controller to regulate the power levels delivered to a light source, thereby regulating the amount of light delivered to the light pipe. Alternatively, the information display device delivers visual data, including alpha-numeric characters, predetermined images, or a controlled phasing. The information display device may be utilized to illuminate information associated with the structure. The illumination system provides the ability to phase between different colors, as well as blended colors. Accordingly, an information display device phases between varying colors, and may blend colors to create color schemes. The illumination system includes a control module disposed within the structure to control device parameters.

Abstract: An illumination device has a blue light emitting element that emits blue light and a light guide member that guides blue light emitted from the blue light emitting element to a light exit surface of the light guide member. A first color conversion element includes a red phosphor that emits red light in response to excitation with the blue light. The first color conversion element is disposed on an optical path between the blue light emitting element and the light guide member. A second color conversion element is disposed on a light exit surface side of the light guide member and separated from the first color conversion element. The second color conversion element comprises a pair of non-permeable transparent substrates, a resin disposed between the non-permeable transparent substrates, and a green phosphor dispersed in the resin for emitting green light in response to excitation with the blue light.

Abstract: A liquid crystal display (LCD) module includes a backlight module and an LCD panel. The backlight module has an illumination device for emitting at least a first, a second, and a third color light. The wavelength of the second color light is between 520 nm and 540 nm. The LCD panel is provided to display an image with the first, second and third color lights provided as light sources. The LCD panel includes a color filter having at least a first, a second, and a third filtering layer for filtering the first, second, and third color lights, respectively. The LCD panel also includes a liquid crystal layer disposed next to the color filter. The peak value of a transmission spectrum of the second filtering layer is between 520 nm and 540 nm, and the full width at half maximum of the transmission spectrum of the second filtering layer is between 90 nm and 120 nm.

Abstract: A method for providing a hot spot filter for a light guide is provided by taking an image of the light output pattern of an illuminated light guide. The hot spot filter may be a film, a layer, or an additional liquid crystal display dedicated to attenuating bright spots from the light guide. The hot spot filter may be incorporated into the image display by adjusting the grey scale of individual pixels to provide sufficient compensation.

Abstract: A backlight unit, in which an incident surface of a light-guiding plate is formed in a shape of a curve, or a curve-shaped structure is formed in a housing to improve the light efficiency. The backlight unit includes a light source emitting light; a housing surrounding the light source; a light-guiding plate guiding the light emitted from the light source to an LCD panel, wherein the light-guiding plate has an incident surface formed in a shape of a curve; and a reflective sheet formed under the light-guiding plate.

Abstract: The present invention is to provide a system that displays interactive messages by light emission of preset response depending on the direction of the light from indefinite light source; a light collecting device is used to collect the incidental light from an indefinite light source into clustered beam with higher luminance to be projected into one end of a light guide device before being projected in one direction or multi directions from another end of the light guide device, or light emitted display of selected text or graphics.

Abstract: A backlight unit is provided. The backlight unit includes a point light source circuit board and a point light source group row comprised of a plurality of point light source groups arranged in the point light source circuit board in a line. In addition, at least a part of the point light source groups have a different rotating angle with respect to each other.

Abstract: A backlight assembly includes a light source unit, a reflective element, a receiving container and a diffusion plate. The light source unit has at least one point light source, and the point light source emits light toward a side surface direction. The reflective element has a reflective surface, and the reflective surface is separated from the point light source toward the side surface direction by a predetermined distance for reflecting the light from the point light source toward an upper direction. The receiving container has a bottom plate and a side wall, for receiving the light source unit and the reflective element. A diffusion plate is disposed over the light source unit and the reflective element. Thus, uniform brightness may be enhanced, and the thickness of a display apparatus may be reduced.

Abstract: A backlight assembly includes a light source, a light-guiding plate and a diffusion sheet that includes a first bead layer on a lower surface of the diffusion sheet facing the light-guiding plate, and a second bead layer on an upper surface of the diffusion sheet. To improve image display quality, the hardness of the beads of the first bead layer facing the light guide plate are equal to or less than that of the light guide plate to prevent scratching of the light guide plate.

Abstract: A light controlling sheet is provided in a surface light source device including a light source portion. The light controlling sheet includes an outgoing light side lens portion having multiple unit lenses arranged to project toward the outgoing light side, and transparent portions and reflecting portions provided on the incident light side. The transparent portions and the reflecting portions are arranged alternately, and the transparent portions comprise 40% to 60% of the total area of the light controlling sheet when viewed form a direction orthogonal to the sheet surface on the incident light side.

Abstract: A direct-light-type backlight module uses optical feedback to control point light sources for obtaining a default luminance. Each point light source drives a section in a cyclic time domain to emit a light. A photo detector detects a brightness and the brightness is thus controlled by the optical feedback from the photo detector.

Abstract: A liquid crystal display device, backlight unit, and method of driving a backlight unit are provided. The backlight includes a lamp and an inverter that is operative to supply a driving voltage to the lamp. An illuminance correction system is operative to sense a surrounding luminance of the lamp and to illuminate a predetermined amount of light.

Abstract: A light source having a flexible substrate and a plurality of dies having LEDs is disclosed. The light source can be conveniently utilized to provide an extended light source by bonding the light source to a suitable light pipe. The substrate is divided into first and second regions. The dies are bonded to the substrate in a first region. A portion of the surface of the substrate in the second region is reflective. The substrate is bent such that the second region forms a reflector that reflects light that would otherwise be emitted in a non-useful direction to a more useful direction. The substrate can be constructed from a three layer flexible circuit carrier in which the dies are mounted on a bottom metal layer to provide an improved thermal path for heat generated in the dies.

Abstract: A backlight unit and a liquid crystal display device including such a backlight unit are provided. According to an embodiment, there is provided a backlight unit comprising a plurality of light emitting diodes (LEDs) for generating light, a printed circuit board (PCB) for controlling the LEDs, a transparent scattering plate provided with a scattering optical pattern for scattering the light from the LEDs, and a diffusing plate for diffusing the light scattered by the scattering plate.

Abstract: Fiber optic display systems and related methods are disclosed. According to one embodiment, a fiber optic display system can include a plurality of fiber optics. Output ends of the fiber optics can be spaced from one another and can be arranged in predetermined positions such that at least a portion of the output ends are positioned in a first plane and another portion of the output ends are positioned in a second plane. A light-transmissive material can contain the output ends. The output ends can terminate within the light-transmissive material and can be angled with respect to the light-transmissive material such that light transmitted within the fiber optics emits into the light-transmissive material. A light source can generate a plurality of light beams and selectively control input of the light beams into the input ends for transmission of light in the fiber optics such that an image is formed.

Abstract: An information handling system inverter powers a display backlight at variable brightness levels determined by a brightness module integrated in the inverter. The brightness module sums a user interface setting, automated brightness setting and ambient light sensor measurement input into the inverter to determine the inverter power output, thus simplifying the integration of user brightness settings with automated brightness adjustments, such as DPST adjustments. A brightness range register holds maximum and minimum brightness settings for output by the brightness module. A calibration register holds a calibration brightness setting for calibration of display brightness.

Abstract: In the rear of a liquid crystal display arranged with an inclination to a line of sight reflected by a concave mirror, a backlight and a focusing lens member are arranged in such a manner that the backlight and the focusing lens member are positioned on a plane perpendicular to the line of sight reflected by the concave mirror, and the focusing lens member focuses beams of illumination light from the backlight in such a manner that the beams of illumination light stays within a range of the liquid crystal display.

Abstract: A spread illuminating apparatus includes a plurality of lighting units each of which includes a light conductor plate having a light outlet surface and a light inlet surface, and a light source disposed at the light inlet surface, and which are arranged two dimensionally with a predetermined distance provided between every two adjacent lighting units. The spread illuminating apparatus further includes a plurality of light transmissive members each of which is provided with means to reflect and diffuse light from the light source, and each of which is disposed at the light outlet surface side of the lighting unit. Leakage light from the light source is reflected and disused by the light transmissive member thereby reducing stray light, and at the same time the light transmissive member receives the leakage light and emits it from the outlet surface as effective light thereby enhancing the overall brightness in a uniform manner.

Abstract: This invention relates to a backlight unit that prevents a wrinkle of an optical sheet, and a liquid crystal display module using the same. A backlight includes at least one light source. A light guide panel converts a light from the light source into a surface light. A housing receives the light source, and has an open part that is opened to a light incidence surface of the light guide panel and one end overlaps with at least a part of the light guide panel. A main support encompasses side and upper surfaces of the housing. Optical sheets disposed on the light guide panel, wherein the optical sheets have one ends disposed between the light guide panel and the one end of the housing.

Abstract: Provided are an illumination system capable of eliminating laser speckle and a projection system employing the illumination system. The illumination system includes a laser light source having at least one laser, and a first diffractive optical element to divide a laser beam emitted from the laser light source into a plurality of partial beams and to time-average the partial beams through a periodical movement to eliminate speckle. Accordingly, the illumination system can eliminate speckle of the beams emitted from the laser light source and the projection system employing the illumination system can achieve a high quality image.

Abstract: A light source and a display utilizing the same are disclosed. The light source includes a laser, a light pipe, and an optical fiber. The light pipe includes a layer of transparent material having a top surface, a bottom surface, and a first edge. The first optical fiber couples light from the laser to the first edge at a first location. The light is injected into the light pipe such that the light is reflected from the top surface and the light pipe includes a plurality of scattering centers that scatter the light through the top surface. The laser can be in thermal contact with a heat sink placed at a location that is adapted for dissipating heat. The light source can include a plurality of lasers in a color display. The light from the various lasers can be mixed before it reaches the light pipe or in the light pipe.

Abstract: Disclosed is an information processing device with lighting function that realizes reduced power consumption and cost reductions. The optical connecting member 17 flexibly connects between a light guide plate 14 of a displaying part side and a light guide plate 21 of a key operating part side, thereby guiding light emitted from a white light LED 13 of a displaying part side to key operating part side.

Abstract: A direct type illuminating device includes a light source unit, a reflector plate, a diffuser plate, and a lens module. The light source unit provides source light beams. The reflector plate and the diffuser plate are spaced at an interval from each other, and the light source unit is interposed between the reflector plate and the diffuser plate. The lens module surrounds the light source unit such that the lens module is interposed between the light source unit and the reflector and diffuser plates. An outer curved surface of the lens module has a radius of curvature different from a radius of curvature of an outer curved surface of the light source unit such that the source light beams provided by the light source unit are refracted by the lens module to result in change of traveling directions of the source light beams.

Abstract: In an operating device for a cooktop with a liquid crystal display with two LCD plates, on the top of the lower of the two LCD plates is directly applied a microcontroller in the form of semiconductor chip, for example using COG technology. The semiconductor chip not only controls the LCD, but there are also provided capacitive sensor elements located on said LCD that are evaluated by the semiconductor chip, so that an independent module is formed. The module can be connected by suitable electrical connections to the cooktop and can at least partly or completely control the same.

Abstract: The present invention provides a backlight module used for a liquid crystal display. The backlight comprises a back plate having a first track set, a detachable light source set disposed on the back plate, and an optical films set combined with the back plate. The detachable light source set comprises a base, a light source disposed on a first side of the base, and a second track set disposed on a second side of the base. The second track set can connect to and slide on the first track set. Then the detachable light source set is removable, and the light source is easily to be replaced.

Abstract: A display for a handheld computing device includes a LCD display panel; a display circuit board carrying display electronics for the display panel; a cover assembly securing the display panel to the display circuit board; and a resilient layer disposed between the display circuit board and a circuit board of the computing device. The resilient layer is configured to support the display panel and to limit impact forces applied to the display panel.

Abstract: The present invention provides a fiber-based light source device, which includes a plurality of first, second or third light-emitting devices for respectively emitting a plurality of first, second or third lights, a plurality of first, second or third directional couplers for respectively coupling the first, second or third lights in their order so as to generate a first, second or third coupled light, a fourth directional coupler for coupling the first coupled light and the second coupled light so as to generate a fourth coupled light, and a fifth directional coupler for coupling the third coupled light and the fourth coupled light so as to generate an output light source. With coupling light beams from light-emitting devices and switching of those light-emitting devices in a sequential manner, the energy loss could be minimized and good heat dissipation could be obtained.

Abstract: Each point light source includes an overhang projecting perpendicularly to a light emitting surface from one side of the light emitting surface, and the overhang has its main surface made in contact with a light outgoing surface of a light guide plate with the light emitting surface facing a light incident surface of the light guide plate. Engagement of the overhang with the light outgoing surface of the light guide plate prevents a displacement of the light emitting surface of the point light source and the light incident surface of the light guide plate even when the light guide plate suffers from deformation such as warpage. Even if a displacement occurs, the presence of the overhang reflects leaked light to guide it to the light incident surface of the light guide plate.

Abstract: A display comprises a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a polymeric coating over at least part of the structured surface wherein the coating exhibits a variable thickness.

Abstract: A method and system for combining light emitted by dispersed light sources for use in a projection display or similar system. A plurality of elongated and tapered light integrators are placed side by side forming an array, each having at their small input end a light source, such as an LED. Light collimated by each light integrator is further collimated by a convex lens disposed immediately at the output end of the light integrator. From the convex lenses, the light falls upon an array integrator, preferably a fly-eye type integrator, and passes through it to a second array integrator. Light emerging from the second array integrator is then passed through one or more relay lenses and falls upon a light modulator, such as a digital mircomirror device (DMD). The modulated light beam then passes through a projection lens and onto a visual image display screen. The display screen may, for example, be the screen of a high definition television (HDTV).

Abstract: A backlight module is disclosed. The backlight module includes a back plate, a diffuser and a supporter. The diffuser is disposed over the back plate. The supporter is disposed between the back plate and the diffuser and includes a seat and a fixing member. The fixing member has one or more protrusions formed thereon and the seat and fixing member are adapted to fix a light source.

Abstract: In a display device equipped with a light source device, a second light-guide member is provided to the back surface of a first light-guide member that has an emitted light control sheet provided to the front surface thereof. The emitted light control sheet is composed of a flat plate portion and protrusions. A first light source mounted to a side surface of the first light-guide member, and a second light source mounted to a side surface of a second light-guide member are switched and turned on. The emitted light control sheet has light-condensing effects when the first light source is on, and has diffusing effects when the second light source is turned on. The angle range of illuminating light can thereby be switched.

Abstract: A backlight unit having a supplementary lamp for a smooth starting operation includes multiple light-emitting lamps arranged in one direction on a cover bottom; an inverter printed circuit board (PCB) provided at one rear side or both rear sides of the cover bottom; a first hole provided at a predetermined portion of the inverter PCB; a supplementary lamp provided in the first hole of the inverter PCB; and a second hole provided at a predetermined portion of the cover bottom corresponding to the supplementary lamp.

Abstract: The invention relates to a display comprising a light source and a light redirecting polymeric film containing a structured surface on at least one side of the film and bearing a discontinuous population of adherent beads bonded to the structured surface.

Abstract: A motor vehicle instrument cluster comprising an analog indicator assembly having a pointer rotatably coupled to an actuator for a movement by the actuator, and a display assembly including a display screen for displaying information to an occupant of the motor vehicle and a printed circuit board electrically connected to the indicator assembly and the display assembly. In addition, the printed circuit board is electrically connected to an electrical ground and a metal support frame is mounted to the printed circuit board and coupled thereby to the electrical ground. The metal frame includes a support tray spaced apart from the printed circuit board, defining a gap in between. Finally, the display assembly is mounted in thermal communication to the support tray and the frame and the printed circuit board cooperate to define a static discharge path between the display assembly and the electrical ground.