Abstract: Illuminating devices are disclosed having plastic light-transmitting article(s) formed from a thermoplastic composition including a polycarbonate having repeating structural carbonate units according to the formula: in which at least 60 percent of the total number of R1 groups contain aromatic moieties and the balance thereof are aliphatic, alicyclic, or aromatic. The composition also includes an epoxy additive having at least two epoxy groups per molecule and a phenolic diphosphite derived from pentaerythritol. The thermoplastic composition exhibits a dE (2000 hrs.) value of less than 1.5 after 2000 hours of heat aging at 130° C., measured according ISO 11664-4:2008(E)/CIE S 014-4/E:2007 using CIE illuminant D65 and a 2.5 mm thick molded plaque of the thermoplastic composition.

Abstract: A backlight unit and an LCD device using the same are provided. The backlight unit includes a light guide panel, a light source unit disposed at a rear-direction lower end of the light guide panel, an optical film disposed in a front direction of the light guide panel to face the light source unit and configured to reflect light emitted from the light source unit, and an optical sheet part disposed in the front direction of the light guide panel, and configured to change a travel direction of the light, which is output from the light guide panel, to a direction vertical to the light guide panel.

Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.

Abstract: A light irradiation device includes: a light source to output diffused light; and a light guide member to guide the diffused light to an irradiation point. The light guide member includes an incidence surface which the diffused light enters, a first emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a first diffusion characteristic to emit the diffused light at a first diffusion angle, and a second emission surface to emit the entered diffused light, while further diffusing the entered diffused light with a second diffusion characteristics to emit the diffused light at a second diffusion angle. The second diffusion angle provided by the second diffusion characteristic is smaller than the first diffusion angle provided by the first diffusion characteristic.

Abstract: A screening method of a phosphor-based optical film used in a backlight module and a backlight module are proposed. The screening method includes steps of: a) dividing an internal surface of the backlight module without a phosphor-based optical film into multiple measurement zones, and gaining a transmittance spectrum of each of the measurement zones; b) gaining a chromatic value of each of the measurement zones matching the phosphor-based optical film; c) checking the chromatic values gained in b) to be within a range of standard chroma; the process of screening being finished if all of the chromatic values are in the range; matching at least one measurement zone with a new phosphor-based optical film if the chromatic value of the at least one of the measurement zones is not within the range, and returning to b). The present backlight module has higher saturation and penetration and better color uniformity.

Abstract: Provided is a lightweight flexible lighting device with excellent durability and stable performance over repeated use that combines an organic electroluminescent element, an organic photoelectric conversion element, and a secondary cell. The lighting device has a control means for controlling the electrical connections of the organic electroluminescent element, the organic photoelectric conversion element, and the secondary cell. The control means controls the electrical connections such that a reverse bias voltage is applied to the organic electroluminescent element when the organic electroluminescent element receives light, generates power, and charges the secondary cell, and such that a reverse bias voltage is applied to the organic photoelectric conversion element when the organic electroluminescent element is supplied with power from the secondary cell and emits light.

Abstract: A display module including a backlight module and a display panel is provided. The backlight module includes a light guide plate and a light source module. The light guide plate has a light incident surface, a light-exiting surface, a light-guiding inclined surface, a bottom surface, and a lateral surface, wherein the light-guiding inclined surface is connected to the light incident surface and the light-exiting surface; the light incident surface, the light-guiding inclined surface, and a portion of the bottom surface constitute a wedge portion while the light-exiting surface, the lateral surface, and other portions of the bottom surface constitute a plate portion. The light source module is disposed at the light incident surface and emits light into the wedge portion. The display panel is disposed on the light guide plate and has a side. The side of the display panel has a projection disposed in the light-guiding inclined surface or the plate portion.

Abstract: A luminaire includes at least first and second waveguides. The first waveguide has a first coupling surface extending between a first surface and a second surface opposite the first surface, and the second waveguide has a second coupling surface extending between a third surface and a fourth surface opposite the third surface. The first and second coupling surfaces define a coupling cavity. The luminaire further includes at least one light source within the coupling cavity.

Abstract: Embodiments of the present invention relate to a profiled light guide plate, a backlight module and a liquid crystal display device. In the profiled light guided plate according to the embodiments of the present invention, because the reflectivity of the profiled assembly is less than that of the light entry assembly, the emergent angle of the light beam entering into the profiled assembly from the light entry assembly is larger than the incident angle thereof, which causes the light beam entering from the light entry assembly into the profiled assembly to converge towards the central part of the profiled assembly, away from the ramp of the profiled assembly, thereby decreasing the amount of light leakage from the ramp.

Abstract: A luminaire includes an optical waveguide having a first surface and a second surface opposite the first surface, and a light source associated with the optical waveguide. At least about 80% of light produced by the light source is directed by the waveguide into an illumination distribution emitted from the first surface of the optical waveguide.

Abstract: Optically patterned waveguides and systems employing optically pattered waveguides are provided. The optically patterned waveguide is configured for use in a lighting system and arranged perpendicular to an overhead structure, such as a ceiling. The optically patterned waveguide includes major surfaces that are patterned with a plurality of elongated facets formed into the major surfaces and extending in a direction parallel to the length of the waveguide. The optically patterned waveguide provides illumination patterns having increased uniformity.

Abstract: A display device includes a display unit, a light source disposed on a back surface side of the display unit and that irradiates light to the display unit, an optical member disposed between the display unit and the light source, and a support member disposed so that the light irradiated from the light source is incident to a side surface of the support member and so that the light incident to the side surface is transmitted through the support member. The support member supports the optical member from a back surface side of the optical member, and the support member includes an entrance portion comprising an inclined surface that refracts the light incident to the side surface and a light guide portion that guides the light refracted at the inclined surface to an optical member side of the support member.

Abstract: A display device includes a chassis 14, a frame 13, a photo curable resin member 30a, 30b, and a heat dissipation member 19. The frame 13 includes a portion supporting the light guide plate 16 from a side of a light exit surface 16a such that the light guide plate 16 slides. The photo curable resin member 30a, 30b is arranged between an LED board 18 and the light guide plate 16 and fixed thereto to maintain a distance between a mount surface 18a of the LED board 18 and a light entrance surface 16b of the light guide plate 16. The heat dissipation member 19 having a heat dissipation property is arranged apart from the frame 13 and includes a board attachment portion 19a to which the LED board 18 is attached and a plate-like portion 19b. The plate-like portion 19b extends from the board attachment portion 19a toward the light guide plate 16. The plate-like portion 19b is a plate spring including a portion being elastically in contact with a second bottom plate 14b.

Abstract: A light emitting device has a lead frame which has a lead frame body and a plurality of bumper sections raised from the lead frame body. A rectangular case member with a hole is mounted to the lead frame. A light emitting element is placed in the hole of the case member, which is filled with a sealing resin that seals the light emitting element. The bumper sections are arranged on two opposite sides of the case member. Tip surfaces of the bumper sections are at a level higher than or equal to an upper end surface of the case member.

Abstract: This liquid crystal display device is provided with: an LED; a liquid crystal panel; a light guide plate; a metal chassis disposed on the reverse side of the light guide plate from the liquid crystal panel, the chassis having a step provided by bending a bottom plate, and the bottom plate being sectioned into a first bottom plate part and a second bottom plate part by the step; an LED substrate attached to the first bottom plate part, the LED being arranged on a plate surface of the LED substrate; and a frame for accommodating the liquid crystal panel, the LED, the light guide plate, and the LED substrate so as to enclose these accommodated components between the frame and the first bottom plate part while abutting the second bottom plate part, the frame being arranged on a display surface side with respect to the liquid crystal panel. By the present invention, the temperature of the frame can be prevented from becoming too high in a display device of a type not provided with a cabinet.

Abstract: The present invention discloses light-guiding plate, backlight module and liquid crystal display device. The light-guiding plate includes first incident surface, light-emitting surface, bottom surface and side surface; wherein light-emitting surface being connected to first incident surface, bottom surface being connected to first incident surface, light-emitting surface being connected to side surface, bottom surface being connected to side surface, the angle between first incident surface and side surface connected to first incident surface being obtuse, and light-emitting surface including a plurality of trenches radiating from first incident surface. The radiating trenches disposed on light-emitting surface have certain converging effect on light propagating in light-guiding plate. The propagating light will propagate along the trenches.

Abstract: This display device is provided with: a light source unit having a light source and a light source substrate; a display panel; a light receiving face that is disposed on the back side of the display panel, and upon which light is incident; a light guide plate having a light exiting surface that emits light toward the back side of the display panel; a wall that faces the light receiving face in such a manner that a gap is formed between the light receiving face and the wall; a light source support member that supports the light source unit, and is inserted with the light source unit in the gap etc. from the back side of the light guide plate; and an elastic member that is disposed on the light source support member, protrudes farther toward the light receiving surface than the light source, is inserted in the gap before the light source unit, and is formed of an elastic material.

Abstract: A frame structure for a back light module includes a horizontal base plate, a vertical back plate that has a bottom end connected to an upper side of the base plate, and an elongated horizontal through hole formed in a predetermined zone between ? and ¼ of a vertical height of the back plate from the bottom end, and a heat sink that extends from the upper side of the base plate and that has a top end which is below a bottom end of the horizontal through hole. The backlight module further includes a light source disposed on the upper side of the base plate and a light guiding plate disposed to correspond in position to the light source for receiving light emitted from the light source.

Abstract: The present disclosure relates to a backlight module and a liquid crystal display comprising the backlight module. The backlight module comprises a light guide plate, a glue frame, and a bent heat dissipating plate for fixing the glue frame. A light source lamp facing the light guide plate is arranged on the side wall of the heat dissipating plate at the light-incoming side of the light guide plate. At least one mounting block projecting away from the light guide plate is arranged on the side wall of the heat dissipating plate at the light-incoming side of the light guide plate, and can be engaged with the glue frame for fixing the glue frame. According to the backlight module of the present disclosure, the frame of the liquid crystal display can be significantly narrowed without leading to other problems in the liquid crystal display.

Abstract: Optical elements of a light guide plate are formed by repeatedly aligning convex parts in a longitudinal direction of the optical elements. Concave/convex shaped parts whose recess amount and/or protrusion amount are not constant are formed by three-dimensional curved surfaces that constitute the convex parts. An optical path of light that enters from an incident light surface of the light guide plate is modified by the concave/convex shaped parts that constitute the optical elements as the light progresses through the inside of the light guide plate, and thereby the light is diffused. Further, since the recess amount and/or protrusion amount of the concave/convex shaped parts are not constant, the optical path of light progressing through the inside of the light guide plate is modified randomly, and therefore a light diffusing effect is efficiently exhibited.

Abstract: A control apparatus is provided with a substrate disposed inside a main case and on which light sources are mounted. A surface panel in which light-source display windows are formed at positions opposite the light sources, is also disposed in the main case. The outer rim of the surface of the surface panel facing the main case is affixed to the front-surface rim of the main case with an insulating part sandwiched therebetween.

Abstract: A light guide assembly, a backlight module and a liquid crystal display (LCD) are provided. The backlight module includes a back plate light guide plate, an adhesive member and a light source. The light guide plate is disposed on the back plate and includes a first optical surface, a second optical surface and a light-incident surface. The first optical surface is opposite to the second optical surface. The light-incident surface connects the first optical surface and the second optical surface The first optical surface or the second optical surface of the light guide plate is set with recess. The adhesive member is disposed in the recess to adhere the light guide plate to the back plate. The light source is disposed on the back plate and emits light toward the light guide plate.

Abstract: The present invention provides a backlight module, which includes: a backplane (2), a light guide plate (4) arranged in the backplane (2), a backlight source (6) mounted on the backplane (2), and a heat dissipation film (220) mounted on the backplane (2). The heat dissipation film (220) is made of graphene and has a thickness of 0.01-0.05 mm. The backlight module of the present invention provides includes a graphene-made heat dissipation film formed on a backplane to effectively improve the heat dissipation performance of the backlight module, allowing thermal energy to be uniformly distributed on the entire surface of the heat dissipation film in the plane direction to eliminate localized hot spots. Further, the graphene material is light-weighted so that addition of the heat dissipation film made of graphene does not significantly increase the weight of the backlight module.

Abstract: A backlight unit includes a light source having an emission region, a wiring board having the light source mounted thereon, a light guide plate having a side surface into which light from the light source enters, and a front surface from which the light exits, a light shielding adhesive tape adhering to the wiring board, and an optical sheet which overlaps with the front surface of the light guide plate. The front surface of the light guide plate includes an effective region serving as a planar light source and a light entering region ranging from the side surface to the effective region. The wiring board and the light-shielding adhesive tape each have a part positioned in the light entering region, and the optical sheet is arranged from the effective region to the light entering region. An end portion of the optical sheet overlaps with the light-shielding tape.

Abstract: A process for producing a multifunctional functional support in which operating elements or display elements are arranged. The process includes flexible transparent plastic film supplied from a roll; the flat plastic film is placed into an injection mold, and is backmolded to form a rigid support structure-on a first side, wherein in the region of the operating elements or display elements it remains exposed in the form of at least two clearances; on the second side the plastic film is flooded in the same injection mold with a transparent curing casting compound in an RIM process to form a transparent surface layer, membrane regions that are flexible at least in places being formed in the region of the clearances; operating elements or display elements are placed into the clearances and joined to the plastic support.

Abstract: A light guiding plate and a light guiding device are provided, and the light guiding plate is implemented in the light guiding device. The light guiding device includes a side light source emitting light to the light guiding plate. The light guiding plate includes a first surface, a second surface and a third surface. The second surface is opposite to the first surface, and the third surface is adjacent to the first surface and the second surface. The second surface includes plural light guiding units, and each of the light guiding units includes a total reflection concavity and a light emitting convexity. The light emitting convexity surrounds the total reflection concavity.

Abstract: An illuminating device includes light emitting elements extending in a lengthwise direction and a light guide plate having a first principal surface for emitting light from the light emitting elements and a second principal surface facing the first principal surface. The light guide plate has light guide regions corresponding to the light emitting elements. The light emitting elements overlap the light guide plate on a side of the second principal surface of the light guide plate in plan view. The side of the second principal surface of the light guide plate has first sectional surfaces, on which light originated from each of the light emitting elements is incident. The side of the second principal surface of the light guide plate has second sectional surfaces, each having a reflection surface for reflecting the light originated from each light emitting element toward the first sectional surface, corresponding to the light emitting elements.

Abstract: Disclosed herein are a backlight unit and a display apparatus using the same. The backlight unit includes a first reflector, a second reflector partially having an inclined surface, at least one light source module disposed between the first and second reflectors, and at least one reflective structure disposed on the second reflector.

Abstract: A spread illuminating apparatus includes a point light source with a light-emitting surface, a circuit board with a mounting surface on which the point light source is mounted, and a light guide plate with an incident light surface and an emitting surface. The circuit board is arranged as that at least a partial portion of the circuit board extends beyond an area where the point light source is mounted so as to be superposed on the light guide plate, a light-reflecting member is arranged on the mounting surface, and a region of the mounting surface in which the light-reflecting member is arranged includes a first region that extends forward from a position corresponding to the center of the light-emitting surface of the point light source.

Abstract: In a light guide plate having a light incident surface, a light distributing control surface perpendicular to the light incident surface and a light emitting surface opposing the light distributing control surface, a flat mirror-finish portion is provided on a first area of the light distributing control surface, and a prism sequence is provided on a second area of the light distributing control surface where the flat mirror-finish portion is not provided. The prism sequence is protruded with respect to the flat mirror-finish portion. Each prism of the prism sequence has a rising sloped surface opposing the light incident surface, a first falling sloped surface connected to the rising sloped surface, and a second falling sloped surface connected to the first falling sloped surface, A slope of the first falling sloped surface is larger than a slope of the second falling sloped surface.

Abstract: A display device includes: a light guide member under the display panel and including a light incident surface; a heat discharge member including a heat discharge surface which extends in a first direction opposite to the light incident surface of the light guide member, and a first flat surface which extends in a second direction from the heat discharge surface; and a light source on the heat discharge member, which provides light to the light incident surface and includes a light emitting device on the heat discharge surface and including a light emitting surface opposite to the light incident surface, a circuit board on the first flat surface of the heat discharge member and electrically connected to the light emitting device, and a heat discharge portion on the heat discharge member and which couples the light emitting device to the heat discharge surface of the heat discharge member and discharges a heat generated from the light emitting device.

Abstract: Provided are a lighting device and a flat panel display having the lighting device, the lighting device, including: a support substrate; a circuit board on the support substrate; light emitting devices mounted on the circuit board; and a light guide plate having a protruding portion protruding to a remaining region except for a region in which the light emitting devices are disposed.

Abstract: A display device includes a display panel including a display area in which an image is displayed, and a light unit that includes: a light guide plate including a light receiving surface and a light emitting surface; a light source spaced apart from the light receiving surface while facing the light receiving surface and overlapping the display area; and a light diffusion member extending between the light receiving surface and the light source. The light diffusion member includes at least one of a first pattern formed on a surface of the light diffusion member facing the light emitting surface, and a second pattern formed on another surface of the light diffusion member, thereby implementing uniform brightness across the whole surface of the display panel.

Abstract: A backlight unit (lighting device) 12 includes a chassis 14, an LED (light source) 17, a light guide plate (light guide member) 19, a duct member 22, and dissipative LED attachment portion (dissipative light source attachment portion) 30. The chassis 14 includes a light exit portion 14c through which light exits. The LED 17 is arranged close to an end portion of the chassis 14. The light guide plate 19 is arranged closer to a middle area of the chassis 14 than the LED 17 and light from the LED 17 is guided toward the light exit portion 14c thereby. The duct member 22 is arranged on the side opposite to the light exit portion 14c side of the chassis 14 and has an air passage 23 therein. The dissipative LED attachment portion 30 is provided to the duct member 22 and includes one part (heat dissipation portion 30a) facing the air passage 23 and another part (LED attachment portion 30b) protruding to inside of the chassis 14 and to which the LED 17 is attached.

Abstract: A light source assembly includes a base substrate, a resin layer disposed on the base substrate, and exposing a portion of the base substrate, and a first light source disposed on the portion of the base substrate which is exposed by the resin layer. The first light source has a hexahedron shape. The first light source has a face in parallel with the base substrate and having a height smaller than length or width of the face.

Abstract: Provided is a circuit board including: a supporting substrate including a first region to which light emitting elements are mounted and a second region extending to be bent from the first region, wherein the second region comprises: a connector mounting portion to which a connector for supplying an electric current to the light emitting elements is mounted; and a non-mounting portion of a connector separated and spaced apart from the connector mounting portion, wherein the connector mounting portion is formed lower than the non-mounting portion of the connector.

Abstract: A backlight unit includes a light source which emits light, a light guide plate which receives the light through an incident surface thereof and guides the light, and a back cover which accommodates the light source and is coupled to the light guide plate such which the incident surface is disposed in an inner space thereof, where an air guide area is defined between the light source and the light guide plate in the inner space, and the back cover includes an inclined surface inclined to the incident surface of the light guide plate in the air guide area.

Abstract: Provided is a lighting unit, including: a support substrate; a light guide plate for guiding light generated from a light source; and a first stopper fixed to the support substrate and configured to support the light guide plate.

Abstract: A back light unit includes a light guide plate having at least one light introducing portion and a light exit portion, the front surface of the light exit portion being a light exit surface, and a light source facing the light guide plate and emitting light in a light emitting direction. The at least one light introducing portion includes a first portion and a second portion which is connected to the light exit portion, and in which the second portion spreads wider than the first portion in plan view.

Abstract: A display module is provided. A light source is configured to provide an illumination beam. A light guide plate has a first surface, a second surface opposite to the first surface, and an incident surface connecting the first surface and the second surface. The illumination beam enters the light guide plate through the incident surface. An optical structure is connected to the light guide plate and configured to change a propagation direction of the illumination beam. A reflective display unit is capable of modulating a polarization state of the illumination beam to form a modulated beam. The second surface is disposed between the reflective display unit and the first surface. The first surface is disposed between the second surface and a reflective polarizer, and the reflective polarizer filters the modulated beam into an image beam.

Abstract: A backlight module includes a light guide plate, a light source module, a supporting frame, and a heat conductive glue layer. The light guide plate has a light-entering end; the light source module is disposed corresponding to the light-entering end and includes a flexible circuit board and a plurality of light sources. The flexible circuit board extends along the light-entering end and has a light source-bearing area and a heat-dissipating area, wherein a width of the heat-dissipating area in a direction perpendicular to the light-entering end is not smaller than a width of the light source-bearing area. The plurality of light sources are disposed in the light source-bearing area. The supporting frame has a holding portion which is bent to form an accommodation space for accommodating the light source module and the light-entering end.

Abstract: Provided are a display member and a display device capable of outputting bright and highly uniform light. Provided is a display member (10) comprising a light guiding member (11) which guides light outputted from a first light source (20); a light spreading part (13) which is provided on at least one side surface of the light guiding member (11) and spreads the light guided by the light guiding member (11); a design display part (12) which is provided on at least one surface side of the light guiding member (11) and displays a design; wherein the design display part (12) is provided with a first light transmissive outputting part (122) which transmits and outputs light that was spread by the light spreading part (13) and the light spreading part (13) is provided so as to correspond with the first light transmissive outputting part (122).

Abstract: Provided is a circuit board including: a support substrate; a plurality of light emitting devices mounted on the support substrate; and a device protection portion surrounding one of the light emitting devices, or three or more surfaces of the plurality of light emitting devices.

Abstract: A light guide plate includes a main body including a light emitting surface. A number of glues, each with a different, and lower, refractive index when cured, are applied through a covering plate onto the light emitting surface. Each type of glue forms a layer on the layer below, the stack of layers forms a plurality of spaced micro-rods on the light emitting surface. Each layer in the micro-rod thus includes top and bottom and side surfaces. The different refraction indexes of each layer, reducing along a direction from the light emitting surface to the top surface of each rod, causes light to be emitted substantially equally from the periphery of each layer in the micro-rod as well as from the top of each rod. The maximum refraction index of any layer in the micro-rod is not greater than that of the main body.

Abstract: A liquid crystal display device 10 includes an LED 17, a liquid crystal panel 11, a light guide plate 16, a chassis 14, a frame 13, a board attachment member 19, an LED board 18, and a holding member 31, 32. The chassis 14 is arranged on an opposite side of the light guide plate 16 from the liquid crystal panel 11. The frame 13 is arranged on a display surface side of the liquid crystal panel 11 and in contact with the chassis 14. The frame 13 and the chassis 14 hold the liquid crystal panel 11, the LED 17, and the light guide plate 16 therebetween. The board attachment member 19 is mounted on the chassis 14 and spaced apart from the frame 13. The LED board 18 is in contact with the board attachment member 19 and includes the LED 17 mounted on a plate surface thereof. The holding member 31, 32 sandwiches the board attachment member 19 and the LED board 18 so as to hold the LED board 18 to the board attachment member 19.

Abstract: The present invention provides a backlight module and a display apparatus. The display apparatus comprises the backlight module and a display panel. The backlight module comprises a back bezel and a plurality of light sources. The back bezel includes a plurality of bezel convex portions and a plurality of corresponding bezel concave portions. The light sources are disposed on the back bezel and positioned between the bezel convex portions. The present invention can use the bezel concave portions of the back bezel to improve a heat-dissipation effect.

Abstract: An illuminated display board includes a frame, a light-transmissive panel, and a light source. The light source is positioned within the frame, and adjacent the light-transmissive panel. The light source is oriented at an angle of between about 25 degrees and about 50 degrees with respect to the light-transmissive panel.

Abstract: A display apparatus includes a display panel, a first covering part, an upper frame and a lower frame. The first covering part is disposed on the display panel. The upper frame is disposed under the first covering part and includes a first combining portion. The lower frame is combined with the upper frame through the first combining portion, and overlaps a peripheral portion of the display panel.

Abstract: A panel light assembly for use with a support frame including at least first and second support frame members, the assembly comprising an assembly frame including at least a first assembly frame member and a second assembly frame member spaced apart on opposite sides of a frame space, the first assembly frame member forming a channel, a light source supported by the first assembly frame member within the channel, a light guide member including at least one edge, the light guide supported by the first and second assembly frame members within the frame space with at least a portion of the at least one edge located adjacent the light source, a fastener for fastening the assembly frame to the first and second support frame members.

Abstract: A lighting unit 5 includes a lighting functional portion 7 and a light guide member 8. The lighting functional portion 7 includes a light source 9 and a light-transmissive housing 11. The light source 9 is constituted by a plurality of types of LEDs with different emission colors. The light guide member 8 is molded using a synthetic resin material having light permeability. The light guide member 8 has a light incidence portion 13, a light-emitting portion 14 provided at a charging port 3 of a housing 2, and an intermediate portion 15 that connects the light incidence portion 13 and the light-emitting portion 14 together. If the light-emitting portion 14 emits light with the guided light, the light-emitting portion can be caused to look like shining the charging port 3 of the housing 2.