Abstract: A display apparatus includes a display, a light source, and a light transmittance control means. The display displays a display design. The light source emits a light to illuminate the display. The light transmittance control means is disposed on at least one side of the display and includes a characteristic region for varying an exit angle of the light by varying an incident angle of the light on the light transmittance control means.

Abstract: A backlight unit with a graphite spreader and coating films for sealing the graphite spreader to prevent fall of foreign substances from the graphite spreader is provided with a liquid crystal display device. The backlight unit includes a cover bottom, a plurality of light sources mounted on the cover bottom, a graphite spreader that dissipates heat from the light sources and is formed with at least one hole, and first and second coating films that are attached to upper and lower surfaces of the graphite spreader, respectively, and extend outward from an edge of the graphite spreader such that extent that the first and second coating films contact each other.

Abstract: A keypad is provided for a computing device. The keypad includes one or more lighting devices or mechanisms for illuminating a plurality of keys structures. In an embodiment, the plurality of key structures are formed from a milky material.

Abstract: A direct-illumination backlight apparatus using LEDs includes a flat reflective plate, an LED light source, a transparent plate, a scattering pattern, and a light guide. The light guide serves to introduce a partial light from an LED light source at such an angle that the partial light is trapped inside the transparent plate, and the scattering pattern serves to scatter the trapped light beam at a position directly above the LED light source so that the scattered light beam escapes out of the transparent plate toward an LCD panel.

Abstract: An indicator lighting device in which light introduction efficiency into a indication portion can be improved, brightness is good and unevenness in lighting is small is provided; wherein an indicator 7 which has a translucent indication member (indication portion) 72 and a light introduction member (light introduction portion) 73 and is operated around an axis by a drive shaft 1 of a drive unit 2, light sources L which are disposed around the drive shaft 1 and illuminate the indication member 72 through the light introduction member 73 are provided, and the light introduction member 73 has a light receiving surface 73a for receiving light from the light sources L, a first reflective surface 73b for focusing light introduced from the light receiving surface 73a to a position of a rotation axis Va of the drive shaft 1, a second reflective surface 73c which is formed between the first reflective surface 73b and the rotation axis and reflects light from the first reflective surface 73b in a direction along the ro

Abstract: A backlight assembly for a liquid crystal display panel. The assembly includes a lamp housing; a lamp; a diffuser plate; and a plurality of supports. Each support has first and second members. The first member has a body and a groove formed in the body for holding the lamp and attaching the lamp to the lamp housing. A cushioning member may be disposed around a section of the lamp and between the lamp and the first member for providing cushioning therebetween. The second member has an elongated body for supporting the diffuser plate when it attempts to sag or distort.

Abstract: An illumination push switch unit is provided in which driving units for driving first and second detecting units are formed at side walls other than adjacent side walls of peripheral walls of first and second sliders with a barrier walls of a case interposed therebetween, notch portions are provided at the bottom surface side of the barrier wall and the bottom surface sides of the adjacent side walls of the peripheral walls with the barrier wall interposed therebetween, and a space portion, which becomes an optical path toward the display surfaces of the first and second operation members, is formed between the top surface of the insulating substrate and the notch portions through the notch portions.

Abstract: A lamp positioning structure is disclosed. The lamp positioning structure is assembled on a display device and includes a fastening element mounted on a side plate of a rear plate. The lamp is curve-line-shaped and is mounted over the rear plate. Moreover, the lamp includes at least a curved section. Also, a display panel having a display area is assembled over the rear plate to cover the lamp. The curved section of the lamp is arranged in the display area without damaging the brightness uniformity nearby. In addition, two elastic arms are disposed on both lateral sides of the fastening element to abut against the curved section. Through the arrangement of the positioning structure, the breakage and the displacement of the lamp can be reduced or even prevented. The brightness of the curved section corresponding to the fastening element becomes more uniform and without definite dark spots.

Abstract: A liquid crystal display device includes a liquid crystal display panel including an upper substrate, a lower substrate attached to the upper substrate, and a liquid crystal layer between the upper and lower substrates, a backlight unit disposed at a back side of the liquid crystal display panel, the backlight unit including a plurality of lamps, each of the lamps having a quadrangular-like shape and two external electrodes at two ends thereof, respectively, and a bottom cover holding the plurality of lamps.

Abstract: Control, comprising a knob (12a) with a prism (20) that has an axial part (22) located centrally in the knob, with a symbol display surface (28) at an external end (30) of the knob, and a part (24) arranged at an angle to the central part for receiving incident light from a symbol illuminated by a light source (34), which symbol is on a stationary disc element (32) located at an end of the knob (12a) facing away from the external end (30) and concentric with this, in order to be able to display different symbols by optical projection towards the symbol display surface (28) depending upon the rotational position of the knob (12a).

Abstract: A vehicular lighting housing utilizes a combination of a two-way mirror, a strip of multi-color LEDs, and a one-way mirror spaced from the two-way mirror, such that when the LEDs are illuminated, light reflects back and forth between the two-way mirror and the one-way mirror to present a series of constantly converging light streams forming an endless tunnel of light. A control switch connected to the LEDs and a battery has a rheostat control, a toggle switch and a push button switch to enable the LEDs to be selectively displayed in steady, flashing and paint modes.

Abstract: A lamp-fixing device includes a base and at least one receiving unit. The receiving unit is formed on the base. The receiving unit includes two opposite protruding walls extending perpendicular out from the base. The two protruding walls and the base cooperatively define a receiving space used to receive one end of a lamp tube with an electrode holder. The two protruding walls and the base each define a heat dissipation hole therein of the receiving space. A backlight module using the lamp-fixing device is also provided. The present lamp-fixing device can help to dissipate heat from lamp tubes fixed thereon efficiently.

Abstract: A display device having a display background and a light. The display background has a decorative field into which an indicator is disposed. The light is disposed rearwardly of the display background such that illumination of the light illuminates the indicator to permit a viewer to distinguish between the indicator and a remainder of the decorative field. The indicator forms a portion of the decorative field and is indistinguishable from the remainder of the decorative field when the light is not illuminated. A method for forming a display device is also provided.

Abstract: A backlight unit includes a lamp housing, a plurality of elongate lamps received therein, and a cooling member having a heat-absorbing part and a heat-radiating part. The heat-absorbing part includes a plurality elongate heat-absorbing portions having a light reflecting function and arranged alternately with the elongate lamps. The heat-radiating part extends from the elongate heat-absorbing portions of the heat-absorbing part and is disposed outside the lamp housing. The cooling member has a heat-radiation function as well as a luminescence assistance function.

Abstract: The present invention mainly relates to a liquid crystal display device which comprises a casing and a backlight module; wherein the casing comprises a frame and an opening formed at a central region of the casing, the opening defining an active area; the backlight module used in providing light source via the active area comprises at least one lamp distributed equally in regions defined by the frame and the active area. The at least one lamp comprising an even luminance portion and a dense luminance portion, wherein the even luminance portion is located in the region defined by the active area while the dense luminance portion is located in the region defined by the frame. Because the dense luminance portion is located outside the active area in the invention, the luminance uniformity in the active area is raised without complex treatments thereby.

Abstract: A backlight assembly apparatus, including a conductive receiving container, a flat fluorescent lamp provided over the conductive receiving container, and an insulating member positioned between the conductive receiving container and the flat fluorescent lamp to provide insulation.

Abstract: This invention discloses a direct-type backlight unit structure, which at least comprises at least one light generation component and at least one reflection mirror. The light generation component is used to generate a light and the reflection mirror is set in a side of the light generation component, wherein the reflection mirror faces to the light generation component to form a paraboloid and the paraboloid extends till a top of the light generation component. The reflection mirror can also be set on the top of the light generation component, and faces to the light generation component to form two paraboloids from a center line of the top of the light generation component. The light generated from the light generation component, especially the upward light, can be reflected by the reflection mirror to turn toward the side direction, and finally intermix uniformly in a mixed space, and pass through a light emitting surface to form a uniform backlight.

Abstract: An instrument panel assembly (10) having a transparent intermediate substrate (42) inside its housing (16) on which is applied a phosphor coated indicia (40) for giving the appearance of a depth dimension when energized by a UV light source (36). Multiple intermediate substrates (42, 48) can be positioned at different level within the interior region of the housing (16), each containing various indicia (40, 46, 56, 58) which emits luminescent light when irradiated by the UV light source (36). Multiple UV light sources (36, 52) can be set to project UV radiation of different wavelengths into the housing (16) with each of the phosphor coated indicia (40, 46, 56, 58) being selected from material types which are responsive to only one of the various UV wavelengths, so that each indicia (40, 46, 56, 58) can be selectively energized to display warnings, information messages, or the like.

Abstract: The present invention relates to an apparatus and method of perforating the cover layer or soft skin of an automotive trim panel such as an instrument panel with a laser to allow light to bleed through the perforations. The light source would preferably be a low heat generating or “cool” type source such as an LED. The light source would be attached to a suitable substrate or incorporated in to a flexible printed circuit and coupled to the vehicle electrical system. This method would enable fill switch integration to a trim panel and provide a seamless styling opportunity regarding the electrical controls. This method would help reduce cost and weight, improve quality, and promote new seamless styling theme.

Abstract: An electric device includes flat acrylic lens, and a blue light emitting diode. The lens includes bottom face upon which light is incident from the diode; front face from which light is emergent; pair of side portions opposed to each other and inclined by a predetermined angle with respect to the front face and the bottom face; and back face arranged so that end portions of the pair of side can be connected, substantially making a right angle with the bottom face. The pair of side portions reflects the light sent from the bottom face in the direction of the front face. When the side portions are directed to the back face, an inclination angle of the side plate with respect to the bottom face portion gradually comes close to a right angle.

Abstract: An illuminated logo unit (300) includes a reflective device (320), a pattern panel (301), and an illuminator (311). The reflective device includes a bottom portion (323) and a circumferential portion (321). The circumferential portion defines a concavity (360). The pattern panel is disposed over the reflective device, and includes a pattern (304) and a transparent body (302). The illuminating means illuminator is received in the concavity. The illuminated logo unit further includes a transflective film (305) disposed under the pattern panel opposite to the bottom portion. Virtually all light emitting from the illuminating means illuminator is reflected more than once by the circumferential portion, the bottom portion and/or a transflective film before it reaches the pattern, This improves the overall brightness of the illuminated logo unit.

Abstract: A direct type backlight module comprises a bezel, a reflection sheet, a light source, a diffusion plate, and a supporting unit. The light source is positioned between the bezel and the diffusion plate, and the reflection sheet is positioned on the upper surface of the bezel. The supporting element is fixed within the bezel to support the diffusion plate upwardly. The bezel further comprises a fixing hole and a button hole for fixing the supporting element. The supporting unit comprises a planar plate, a cone, a jammed plug, and a fixing button. The cone is positioned upon the planar plate to erect between the planar plate and diffusion plate. The top of the cone contacts with the diffusion plate. The jammed plug connects to the bottom surface of the planar plate by passing through the bezel via the fixing hole. The fixing button connects to the bottom surface of the planar plate, but distances the jammed plug by a fix distance, and inserts through the button hole of the bezel.

Abstract: A light dimming dot pattern is provided for an LCD in which the diameter of dots is changed in a range from approximately 0.16 mm to approximately 0.65 mm depending on the distance of the dots from a fluorescent tube (13) in such a manner that the volume of the shielded light is increased and decreased at a location close to a position overlying the fluorescent tube (13) and at a location remote from the fluorescent tube (13), respectively. In this manner, a light dimming dot pattern with a transmittance for all light rays of approximately 62% (roughly in the vicinity of 62%), higher than the transmittance for all light rays in the conventional technique not higher than 50%, is produced. Consequently, the light of uniform high luminance may be produced without raising the luminance of the fluorescent tube (13), and hence an LCD of high luminance may be realized.

Abstract: An indicator assembly with a dial face, a pointer and a lamp. The dial face has an opaque portion and defines a shaft aperture. The pointer has a connecting portion, a pointer portion and an opaque boot portion. The connecting portion is disposed in-line with the aperture. The pointer portion is coupled to and extends radially outwardly from the connecting portion. The boot portion extends about the connecting portion and contacts the dial face in a zone that encircles the aperture. The lamp is disposed rearwardly of the dial face and provides a source of light. A method for reducing or eliminating a halo effect is also provided.

Abstract: A speedometer face plate assembly that incorporates a border of light transmitting segments above the speed indicating numerals is disclosed. Each of the segments is a different color. The colored segments are lighted from behind as the speed changes so that colored light is visible both peripherally and directly to the driver. Each color is associated with a specific speed increment so that once the driver becomes familiar with this speedometer face plate assembly, he or she will be aware of the speed traveled according to the color of the light and will not have to look directly at the speedometer as frequently as is currently necessary. In addition to the colored light transmitting border, there may also be a colored light transmitting section under the numerals or at another area on the speedometer face to further enhance the colored light effect. This speedometer face plate assembly contributes to increasing driving safety.

Abstract: A keyboard is provided having illuminating keys. The keyboard includes a light channeling membrane and key members constructed at least partially of translucent material so that light produced from a light source is channeled upwardly to the upper surfaces of the key members. The light source may include LED or LEC systems in adjoining relationship to the light channeling membrane or light pipe. In a preferred embodiment, the light source is constructed of a substantially planar illuminescent sheet which underlies the light channeling membrane. In an alternative preferred embodiment, a light pipe is constructed to illuminate light laterally along a portion of its length to illuminate a plurality of key members.

Abstract: A backlight module having a light diffusing device is disclosed, comprising a frame, a reflecting plate, a top plate and at least one light source module, in which the reflecting plate having an upper surface is mounted on a bottom side of the frame and the top plate is mounted on a top side of the frame to space a predetermined distance from the reflecting plate. The light source module is mounted on the upper surface of the reflecting plate, including a light source and a light diffusing device mounted between the light source and the top plate. The light diffusing device has an un-uniform thickness which is inversely proportional to the distance between the light source and the top plate. Thus, the problem of non-uniform luminance distribution caused by a change in the distance between the light source and the top plate is eliminated.

Abstract: A hidden touch pad structure adopted for an electronic product has a plate, a touch pad arranged inside the plate, a circuit board disposed under and retained against the plate and the touch pad simultaneously, and a lighting device surrounding the touch pad and received inside the plate. The circuit board receives a pressure signal via the plate and the touch pad, and drives the lighting device to provide light. The touch pad is recognized via the lighting device surrounding thereof.

Abstract: A backlight module comprises a reflector, an optical element, and a supporting structure. The supporting structure is disposed on the reflector and contacting the optical element for restricting the optical element from deformation. The supporting structure comprises a supporting portion and a cushion. The cushion is disposed between the supporting portion and the reflector. The cushion is an elastic element, providing a plurality of supporting forces in at least two directions, and enabling a tip of the supporting portion to move with the optical element.

Abstract: A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of pinholes per unit area of the background portion is no greater than 1×10?2%. A method of manufacturing the display panel is also disclosed. The background portion has a transparent optical density of 3.0 or greater and an image portion has a transparent optical density of 1.0 or less, and preferably 0.1 to 1. A toner used for electrophotographically forming the background portion and the image portion has a number average molecular weight of 1,000 to 6,000 and a weight average molecular weight of 30,000 to 150,000 as measured by gel permeation chromatography with respect to a portion of the toner dissolved in tetrahydrofuran, and has respective molecular weight distribution peaks in molecular weight ranges of 1000 to 10,000 and 100,000 to 1,500,000.

Abstract: Optical devices such as backlight assemblies, according to the present invention include a multilayer optical film in which at least one of the layers comprises an oriented birefringent polymer. The multilayer optical film exhibits low absorptivity and can reflect light approaching at shallow angles as well as normal to the film.

Abstract: A direct backlight module has a light guide plate, a plurality of lamp tubes, a reflecting plate and a frame. The light guide plate has a upper surface and a lower surface, and at least one surface of the light guide plate is coated with an ink layer. The lamp tubes are located below the light guide plate. The reflection plate is located below the lamp tubes. The frame covers the reflecting plate, lamp tubes and light guide plate. The ink layer contains a plurality of diffusing granules for diffusing lights to produce uniform lights.

Abstract: A direct backlight includes a plastic spacer pin. The spacer pin is formed of a semispherical portion and a conical frustum portion. The spacer pin is disposed such that the thicker end of the conical frustum portion is coupled to the bottom surface of the chassis, with the semispherical portion placed to face a diffuser plate. The radius of curvature of the tip of the semispherical portion is 0.3 mm to 1 mm. The diameter of the end of the conical frustum portion on the semispherical portion side is 1.1 mm to 2 mm. The ratio (L/B) is less than 5 where L is the length of the spacer pin and B is the diameter of the thicker end of the conical frustum portion.

Abstract: A backlight module includes a plurality of point light source generators, a diffusing plate installed on the plurality of point light source generators for scattering the light generated by the plurality of point light source generators, and a diffusing sheet installed above the diffusing plate for diffusing the light emitted from the diffusing plate.

Abstract: An indicator for a straddle type vehicle includes a dial plate and scale markings provided on the dial face. Each of the scale markings protrudes from a flat dial face of the dial plate and is provided with a slant face inclined relative to the flat dial face for reflecting external light.

Abstract: A backlight unit with high thermal dissipation. The back light unit includes a light source generator positioned in a backside of a display panel for providing light beams to the display panel, a diffuser positioned between the light source generator and the display panel for uniformly scattering light beams from the light source generator to the display panel, and a housing enclosing the light source generator and connecting to the diffuser for reflecting the light beams to the diffuser. The housing further includes a heat pipe for being a heat transfer interface between the back light unit and an external environment.

Abstract: A liquid crystal display module includes: a liquid crystal display panel; an array of light sources emitting different color lights; and a light guide plate for mixing the different color lights emitted from the light sources, wherein the array of light sources is arranged near a middle of a rear surface of the light guide plate.

Abstract: A display for a vehicle, including a light source, an optical device to guide light from the light source and form the light from the light source into a light pointer, a head portion disposed above a meter surface to project the light pointer formed by the optical device on the meter surface from above of the meter surface, a driving device to rotate the head portion, and a height adjusting mechanism to adjust a height of the head portion to the meter surface to be capable of changing a length of the light pointer while projecting the light pointer.

Abstract: A display emitting apparatus that irradiates an optically transparent display unit with Ultraviolet rays of light from below to cause luminescent layers provided on the display unit to emit colored rays of light to provide a highly colorful and very ornamental display (FIG. 1).

Abstract: A backlight unit includes front and rear emission surfaces and a plurality of lamps arranged in the central plane of the backlight unit, wherein the front and rear emission surfaces are inclined by +? and ?? degrees with respect to the central plane. The pitch of the lamps increases along the direction in which the distance between the emission surface and the central plane increases.

Abstract: A glare resistant display for automotive vehicles has a lens with horizontal grooves which deflect reflections of external light sources, such as sun light, away from drivers while allowing illumination from behind the lens to pass therethrough so as to be visible to drivers. Indicia is disposed on the front face of the lens and a pointer pivots behind the front face. The indicia and pointer are made distinct because they block or absorb portions of the illumination coming from behind the lens. By utilizing lenses which minimize reflection, dials of instrument panels can be moved further toward steering wheels and drivers, thereby releasing space behind the dials for other uses.

Abstract: The double-sided edge lighting-type display sign of the present invention comprises at least two illuminating light sources: two or one display signages; and a light-directing panel. Preferably, a display sign housing accommodates and supports the other elements of the present invention. Namely, the light box housing supports at least two light sources, the display signages and the light-directing panel. The light-directing panel of the present invention is at least partially light reflective and at least partially light passing. The light directing panel directs and redirects light from the included at least two edge lighting-type light source to the included display signages. The light ultimately incident on the display signages is greater than it would normally be without the light-directing panel.

Abstract: A liquid crystal display having a liquid crystal display panel for modulating light to form an image and a back light unit having a plurality of lamp tubes without inside electrodes and which are discharged by outside electrodes disposed along an outer surface of the at least one lamp tube, the back light unit being disposed behind the liquid crystal display panel. One outside electrode disposed at the at least one of the plurality of lamp tubes is electrically connected with another outside electrode disposed at an another adjacent lamp tube.

Abstract: A light guide plate includes a first surface having a light incident surface and a light reflect surface, a second surface facing the first surface, through which the reflected light exits, a first edge surface connected between edges of the light reflect surface and the second surface, and a second edge surface connected between edges of the light incident surface and the second surface, being opposite to the first edge surface. A light source is disposed on the light incident surface. A light guide plate may also include a stepped edge portion formed at a marginal area of the light guide plate on which a light source is combined. The stepped edge portion includes a light incident surface, a light reflect surface, an upper surface through which the reflected light exits the light guide plate, and a first edge surface connected between edges of the light reflect surface and the upper surface, being opposite to the stepped edge portion.

Abstract: An illuminated tape measure comprises a housing with an illuminable tape positioned in the housing. The illuminable tape is marked with a plurality of regularly spaced markings that form a linear measuring scale so the tape may be used as a measuring tape. The illuminable tape is made of an electroluminescent material operable to emit light when electrical power is provided to the material. A power source and an inverter are positioned in the housing for supplying power to the illuminable tape. The housing includes at least one wall having a transparent portion. Light from the illuminable tape may pass out of the housing through the transparent portion. In one embodiment, a mirror is provided in the housing for focusing the light within the housing into a light beam.

Abstract: A backlight module includes a reflector, a support, a lamp, and a diffuser plate. The support is disposed on the reflector, and the lamp is disposed in the support. The diffuser plate is disposed on the reflector, and a predetermined gap is formed between the support and the diffuser plate. Thus, when the support is expanded, the diffuser plate is abutted by the support.

Abstract: An image-casting flashlight has a housing adapted to hold a battery, a battery-powered LED light source mounted on the housing and directed forward along an axis, and a holder sleeve axially displaceable on the housing forward of and relative to the LED light source. An image carrier, e.g. a slide or a mask, is fixed in the holder sleeve and axially aligned with the light source. An end piece on the housing forward of the LED light source and of the image carrier holds a lens. Thus axial displacement of the holder sleeve moves the image carrier relative to the light source and to the lens.

Abstract: A light source (15) is housed in a housing (6) of a case, underneath the dial (10) opposite a guide (17) directing the light onto a reflector (20), formed in a hollow in the internal or external face of a crystal (1) the thickness of which decreases regularly from the center to the periphery thereof for reorienting the light by total internal reflection into the crystal (1) until it emerges towards the dial (10) when the maximum refractive index is exceeded.

Abstract: A bottom lighting module comprises a substrate, a nut, a first diffusion sheet, a support, a second diffusion sheet and at least one light-emitting diode (LED). The nut is set on the substrate. The first diffusion sheet is disposed on the nut. The support comprises a body and a screw. The body further comprises a top end and a bottom face. The screw extends from the bottom face and passes through the first diffusion sheet to joint with the nut. The second diffusion sheet is disposed on the top end of the body. The LED is disposed below the first diffusion sheet.

Abstract: A back light module is provided. The back light module comprises a light-guiding plate, a side light source and a bottom light source. The side light source is positioned on one side facing a side surface of the light-guiding plate. The bottom light source is positioned on a bottom surface of the light-guiding plate. Light from the side light source and the bottom light source both emerge from a top surface of the light-guiding plate. The side light source and the bottom light source together provide a bright surface light source that illuminates a liquid crystal display to produce a better display effect. In addition, this invention also provides e liquid crystal display comprising a transmissive or transflective liquid crystal display panel and the aforementioned back light module.