JP2012216503A - Light source device, backlight device, display device, and fixing member used for these - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source device 1 capable of easily assembling without using a tool or the like with a simple structure.SOLUTION: The light source device includes a light source unit for emitting light, a case which houses the light source unit, and a fixing member which fixes the light source unit to the case. Hooking parts formed in the fixing member is respectively hooked to a first connection part formed in the light source unit and a second connection part formed in the case.

Description

  The present invention relates to a light source device that can be easily assembled, a backlight device provided with the light source device, a display device provided with the backlight device, and a fixing member used therein.

  Conventionally, regarding an LED light source device including a light guide plate for introducing light from a light emitting diode from an end surface and emitting the light from the side surface, an LED and a light guide plate for introducing light from the LED from the end surface and emitting the light from the side surface; A housing for housing the LED and the light guide plate and a wiring for supplying power to the LED are provided. The light guide plate has a diffused reflection mechanism in which the length of the side surface is longer than the width of the end surface and the size of the end surface is larger than the size of the light emitting portion of the LED, and the diffused reflection mechanism that increases the irregular reflection property as the distance from the end surface increases. There is a configuration (see, for example, Patent Document 1).

  Further, regarding an LED light source device used in a light source device for illuminating a liquid crystal panel, an LED light source configured by covering linearly disposed LED chips on a component mounting surface of a substrate with a scattering lens that is a cylindrical lens, There is a configuration in which the scattering lens includes a curved surface that is convex with respect to the component mounting surface and a tapered surface that tapers from the end of the curved surface toward the component mounting surface (for example, Patent Document 2). reference.).

JP 2009-187874 A JP 2009-158274 A

  However, the configuration as described above has a problem that it is difficult to assemble easily.

  In view of the above technical problems, an object of the present invention is to provide a light source device that can be easily assembled without using a tool or the like with a simple configuration. Another object is to provide a backlight device provided with the light source device. It is another object of the present invention to provide a display device provided with the backlight device.

  In order to solve the above-described problem, the light source device according to the first aspect of the present invention includes a light source unit that emits light, a housing that houses the light source unit, and a fixing member that fixes the light source unit to the housing. And the mooring part formed on the fixing member is moored to the first connection part formed on the light source unit and the second connection part formed on the housing, respectively. And

  Moreover, in order to solve the above-mentioned subject, the backlight apparatus which concerns on the 2nd aspect of this invention is the light source device which concerns on a 1st aspect, and the said light source device which adjoined the said light source device and was injected from the side surface. And a light guide member that guides light from the main surface.

  In order to solve the above-mentioned problem, a display device according to a third aspect of the present invention is laminated on the both sides or one side of the main surface of the backlight device according to the second aspect and the light guide plate. And a display member on which information is displayed.

  Moreover, in order to solve the above-mentioned subject, the fixing member which concerns on the 4th aspect of this invention is the fixing mounted to the said housing | casing in order to fix the light source unit mounted in the holding member to a housing | casing with the said holding member. A holding part having a flat surface against which a contact surface of the case comes into contact when mounted on the case, and a pair of anchoring parts extending in the insertion direction from the flat surface of the holding part to the case, A pair of opposing side surface portions that are erected from at least a part of the upper surface of the mooring portion, and the mooring portion is moored by the holding member that holds the light source unit when attached to the housing. It has the 1st mooring part, The said side part has the 2nd mooring part moored to the said housing at the time of mounting | wearing to the said housing, It is characterized by the above-mentioned.

  The light source device, the backlight device, and the display device according to the present invention can be easily assembled without using a tool or the like with a simple configuration. Furthermore, the fixing member according to the present invention can be easily detached even after being mounted on a device such as a light source device.

It is a perspective view which shows the light source device which concerns on the 1st Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the light source device which concerns on the 1st Embodiment of this invention for every structural member, and respond | corresponds to FIG. It is a perspective view which shows the light source unit which comprises the light source device which concerns on the 1st Embodiment of this invention, (a) is a perspective view which shows the state which integrated the light source, the board | substrate, and the holding member, (b) is a light source. It is a perspective view shown in the state which isolate | separated the arrangement | positioning board | substrate and the holding member which laminates | stacks and hold | maintains this board | substrate, and respond | corresponds to FIG. It is a perspective view which shows the holding member of the light source unit which comprises the light source device which concerns on the 1st Embodiment of this invention, (a) is a perspective view which shows the holding member which can hold | maintain a board | substrate on one side, (b) is different. It is a perspective view which shows the holding member which can hold | maintain the board | substrate of a width | variety on either surface of both surfaces, and respond | corresponds to FIG. It is a figure which shows the housing | casing which comprises the light source device which concerns on the 1st Embodiment of this invention, (a) is a figure which shows a part of housing | casing with a perspective view, (b) shows a housing | casing with a side view. FIG. 6 corresponds to FIG. It is a figure which shows the fixing member which comprises the light source device which concerns on the 1st Embodiment of this invention, (a) is a figure which shows a fixing member by a perspective view from one side, (b) is the other which opposed the fixing member to one side (C) is a figure which shows a fixing member by a perspective view from a predetermined | prescribed direction, (d) is a figure which shows a fixing member by a side view, and respond | corresponds to FIG. It is a schematic diagram which shows the state which anchors the fixing member which comprises the light source device which concerns on the 1st Embodiment of this invention to a light source unit, The schematic diagram which shows the state before anchoring a fixing member to a light source unit, A fixing member It is a schematic diagram which shows the state after mooring to the light source unit, and respond | corresponds to FIG. It is a schematic diagram which shows the state which anchors the fixing member which comprises the light source device which concerns on the 1st Embodiment of this invention to a housing | casing, The schematic diagram which shows the state before anchoring a fixing member to a housing | casing, A fixing member It is a schematic diagram which shows the state after mooring to a housing | casing, and respond | corresponds to FIG. It is a perspective view which shows the backlight apparatus which concerns on the 2nd Embodiment of this invention. It is a perspective view which expands and shows a part of backlight apparatus which concerns on the 2nd Embodiment of this invention, and respond | corresponds to FIG. It is a perspective view which shows the display apparatus which concerns on the 3rd Embodiment of this invention. It is a perspective view which expands and shows a part of display apparatus which concerns on the 3rd Embodiment of this invention, and respond | corresponds to FIG. (A) is the perspective view which looked at the fixing member which the light source device which concerns on the 4th Embodiment of this invention employ | adopts from diagonally upward, (b) is the perspective view which looked at the said fixing member from diagonally downward, (c) is the said The front view which looked at the fixing member from the insertion direction to a housing, (d) is the side view which looked at the said fixing member from the side. (A) is a perspective view of the housing | casing which the light source device which concerns on the 4th Embodiment of this invention employ | adopts, (b) is sectional drawing of the said housing. (A), (b) is a figure which shows the state which anchors the fixing member which comprises the light source device which concerns on the 4th Embodiment of this invention to a light source unit.

  Hereinafter, preferred embodiments of the light source devices 1 and 4, the backlight device 2, the display device 3, and the fixing member 60 used in these will be described with reference to the drawings. The light source devices 1 and 4, the backlight device 2, the display device 3, and the fixing member 60 used for them are not limited to the following descriptions, and do not depart from the gist of the present invention. These can be changed as appropriate. In the following description, the materials and shapes of the constituent members constituting the light source devices 1 and 4, the backlight device 2, the display device 3, and the fixing member 60 used therein are examples, and other materials are used. The shape can be changed as appropriate.

  In the following description, first, the light source device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. Next, a backlight device 2 according to a second embodiment of the present invention will be described with reference to FIGS. Next, a display device 3 according to a third embodiment of the present invention will be described with reference to FIGS. A method for manufacturing the light guide member 40 provided in each of the backlight device 2 according to the second embodiment of the present invention and the display device 3 according to the third embodiment will be described. A fixing member 60 according to a fourth embodiment of the present invention and a light source device 4 using the same will be described with reference to FIGS. 13 to 15. Finally, configurations and main functions and effects of the light source device 1, the backlight device 2, and the display device 3 according to the first to third embodiments of the present invention will be described for each claim.

[First Embodiment]
Hereinafter, the light source device 1 according to the first embodiment of the present invention will be specifically described with reference to FIGS. 1 to 8.

  The light source device 1 according to the first embodiment of the present invention includes a light source unit 10, a housing 20, and a fixing member 30, as shown in FIG. Therefore, each configuration of the light source device 1 will be described in order.

As shown in FIG. 3, the light source unit 10 constituting the light source device 1 is provided with a light source 11 that emits light.
Such a light source unit 10 includes a light source 11, a substrate 12, a holding member 13, and wiring 14.
Hereinafter, each member which comprises the light source unit 10 is demonstrated in order. The light source 11 of the light source unit 10 is composed of a light emitting diode (LED: Light Emitting Diode). Moreover, the light source 11 is comprised by LED which consists of a color of white, red, orange, yellow, green, blue, indigo, or purple, or those color combinations. Moreover, you may comprise the light source 11 by LED which emits the light of an ultraviolet region or an infrared region. A plurality of such light sources 11 are arranged at predetermined intervals on a substrate 12 described later. The light source 11 is not limited to the LED, and may be configured by an organic light emitting diode, a fluorescent tube, a cold cathode tube, an incandescent bulb, a neon tube, or the like. The substrate 12 of the light source unit 10 is made of a glass epoxy substrate formed in a plate shape. A plurality of light sources 11 are arranged at a predetermined interval on the mounting surface 12 a formed on the top of the substrate 12.

  Further, with respect to the light source unit 10, the holding member 13 is made of an aluminum or copper alloy, is formed from a plate-like portion provided with linear protrusions for positioning the substrate 12 at both ends, and holds the substrate 12 in a stacked manner. . Such a holding member 13 also functions as a heat radiating member. In addition, since the holding member 13 is made of a metal plate having a smooth surface, the holding member 13 can be easily inserted and removed without being caught by the mounting surface 20b or the like when housed in a housing 20 described later. Note that the substrate 12 is laminated and held in a state where the double-sided tape and the adhesive or adhesive are applied to the laminated surface 13b formed on the upper portion of the holding member 13. In addition, the holding member 13 is formed with a first connecting portion 13a in which a first mooring portion 31a of a mooring portion 31 formed in a fixing member 30 described later is moored. Specifically, the first connecting portion 13 a of the holding member 13 is formed in a cutout shape at one end of the side portion 13 c of the holding member 13. In addition, the 1st connection part 13a of the holding member 13 is not limited to a notch shape, A hole shape may be sufficient and a protrusion shape may be sufficient. Here, the holding member 13 may not be provided, and a first connecting portion (not shown) may be formed on the substrate 12, and the first mooring portion 31a of the mooring portion 31 formed on the fixing member 30 described later may be moored. Further, the wiring 14 of the light source unit 10 is a wiring to which driving power is supplied from the outside. After being soldered to the electrode 12b provided on the mounting surface 12a of the substrate 12, a resin for preventing disconnection is molded. ing.

  Further, the light source unit 10 is not limited to the holding member 13 that holds the substrate 12 with respect to the laminated surface 13b formed on one side shown in FIG. The holding member 15 that holds the substrate 12 having a different width with respect to either the laminated surface 15b or the laminated surface 15d may be used. Specifically, when the substrate 12 with a width of 8 mm is used, it is mounted on the laminated surface 15b of the holding member 15, and when the substrate 12 with a width of 6 mm is used, it is mounted on the laminated surface 15d of the holding member 15.

  The housing 20 constituting the light source device 1 houses the light source unit 10 as shown in FIG. Such a housing 20 is made of an aluminum alloy metal plate formed in a plate shape with a U-shaped cross section. Here, the light source unit 10 is placed and stored on a placement surface 20 b formed below the inside of the housing 20. Further, the housing 20 is formed with a second connecting portion 20a, and a second mooring portion 31b of a mooring portion 31 formed on a fixing member 30 described later is moored. Specifically, the second connecting portion 20 a of the housing 20 is formed in a hole shape at one end of the side portion 20 c of the housing 20. In addition, the 2nd connection part 20a of the housing | casing 20 is not limited to hole shape, A notch shape may be sufficient, or a protrusion shape may be sufficient. Here, for example, the light guide member 40 constituting the backlight device 2 described later is held in the holding portions 20d formed on both sides inside the housing 20.

The fixing member 30 constituting the light source device 1 fixes the light source unit 10 to the housing 20 as shown in FIG.
Such a fixing member 30 is made of polycarbonate, and is formed of a rectangular body provided with a plurality of irregularities and opening holes. Here, the first mooring part 31 a of the mooring part 31 of the fixing member 30 shown in FIG. 6 is moored to the first connecting part 13 a of the light source unit 10. Similarly, the second mooring part 31 b of the mooring part 31 of the fixing member 30 is moored to the second connecting part 20 a of the housing 20. Specifically, the anchoring portion 31 of the fixing member 30 is formed of a pair, and is formed to protrude from the one surface 30p of the fixing member 30 in a protruding shape with a predetermined interval. Further, the first mooring portion 31 a moored to the first coupling portion 13 a of the light source unit 10 is formed in a protruding shape including a trapezoidal base with respect to the lower portion of the pair of mooring portions 31 formed on the fixing member 30. Yes. Similarly, the second mooring part 31b moored to the second connecting part 20a of the housing 20 is formed in a protruding shape made of a column with respect to the side parts of the pair of mooring parts 31 formed on the fixing member 30. ing. In addition, the 1st mooring part 31a and the 2nd mooring part 31b which were formed in the mooring part 31 of the fixing member 30 are not limited to protrusion shape, A notch shape may be sufficient, or it may be a hole shape. Also good.

  Further, with respect to the fixing member 30, the lower portion of the holding member 13 of the light source unit 10 is placed and held on a mounting portion 30q formed by projecting in a plate shape on one surface 30p of the fixing member 30. In addition, the wiring 14 of the light source unit 10 is inserted into the wiring hole 30r opened in a pair of cylindrical shapes in the fixing member 30. Here, the fixing member 30 is provided at one end of the light source unit 10 and the housing 20, but is not limited to this configuration, and may be provided at both ends of the light source unit 10 and the housing 20. When the fixing member 30 is provided only at one end of the light source unit 10 and the housing 20, a sealing lid (not shown) may be provided at the other end of the light source unit 10 and the housing 20.

  Here, a method of assembling the light source device 1 will be described with reference to FIGS. 7 and 8. First, as shown in FIG. 7, notches formed in the holding member 13 of the light source unit 10 in a state where the wiring 14 of the light source unit 10 is inserted into the wiring holes 30r opened in a pair of cylindrical shapes in the fixing member 30. The pair of first mooring portions 31 a formed in the shape of the anchoring portion 31 of the fixing member 30 is moored to the pair of first coupling portions 13 a having the shape. Next, as shown in FIG. 8, with the light source unit 10 inserted into the housing 20, the pair of second connecting portions 20 a formed in the housing 20 and having a hole shape are attached to the anchoring portions of the fixing member 30. The pair of second mooring portions 31b formed in the shape of the protrusion 31 is moored. Therefore, the light source unit 10, the housing 20, and the fixing member 30 constituting the light source device 1 can be easily assembled without using a tool, and can be disassembled without using a tool.

  As mentioned above, according to the light source device 1 which concerns on the 1st Embodiment of this invention, it can assemble easily without using a tool etc. by simple structure. Specifically, for example, when the light source unit 10 is replaced, no burden is placed on the operator. Further, for example, the light source unit 10 can be replaced without special skills. Therefore, not only when the light source unit 10 is replaced due to the life of the light source unit 10, but also when, for example, it is desired to change the emission color, it can be easily replaced. Moreover, according to the light source device 1 which concerns on the 1st Embodiment of this invention, after cutting the light source unit 10 and the housing | casing 20 by arbitrary length, it can also be moored using the fixing member 30. FIG.

  Further, according to the light source device 1 according to the first embodiment of the present invention, the light source unit 10 includes the light source 11 and the substrate 12 on which the light source 11 is disposed, and the first connecting portion is formed on the substrate 12. It can be set as the structure to do. Similarly, the light source unit 10 includes a light source 11, a substrate 12 on which the light source 11 is disposed, and a holding member 13 that holds the substrate 12 in a stacked manner, and the first connecting portion 13 a is formed on the holding member 13. It can be configured. According to such a light source device 1 according to the first embodiment of the present invention, the fixing member 30 can be easily fixed to the light source unit 10 in a short time. Furthermore, when the attachment and detachment is performed a plurality of times, the reproducibility of the positions of the fixing member 30 and the light source unit 10 can be sufficiently maintained.

  Further, according to the light source device 1 according to the first embodiment of the present invention, the anchoring portion 31 of the fixing member 30 is formed in a protruding shape, and the first connection portion 13 a of the light source unit 10 and the second connection of the housing 20. It can be set as the structure which forms the part 20a in the shape of a hole or a notch. Similarly, the mooring portion 31 of the fixing member 30 is formed in a hole shape or a notch shape, and the first connection portion 13a of the light source unit 10 and the second connection portion 20a of the housing 20 are formed in a protruding shape. it can. According to the light source device 1 according to the first embodiment of the present invention, the fixing member 30 can be detachably anchored and fixed to the light source unit 10 with a very simple configuration.

  Furthermore, according to the light source device 1 according to the first embodiment of the present invention, in the state where the first mooring part 31 a of the mooring part 31 of the fixing member 30 is moored to the first coupling part 13 a of the light source unit 10, The unit 10 can be inserted into the housing 20, and the second mooring portion 31 b of the mooring portion 31 of the fixing member 30 can be moored to the second connecting portion 20 a of the housing 20. According to such a light source device 1 according to the first embodiment of the present invention, it can be easily assembled in a short time without using a tool, and can be disassembled without using a tool.

  Moreover, according to the light source device 1 according to the first embodiment of the present invention, the wiring 14 provided in the light source unit 10 and supplied with driving power from the outside is inserted into the wiring hole 30r of the fixing member 30. be able to. According to such a light source device 1 according to the first embodiment of the present invention, when the fixing member 30 is anchored and fixed to the light source unit 10, the wiring 14 of the light source unit 10 is another constituent member. Can be prevented from interfering with. In addition, disconnection of the wiring 14 can be prevented by using the fixing member 30.

[Second Embodiment]
Hereinafter, the backlight device 2 according to the second embodiment of the present invention will be specifically described with reference to FIGS. 9 and 10.

  The backlight device 2 according to the second embodiment of the present invention includes a light guide member 40 that guides light of the light source device 1 incident from the side surface from the main surface, as shown in FIG. It has a special feature. Other configurations according to the second embodiment are the same as the configurations described in the first embodiment. Therefore, in the second embodiment, the configuration of the light guide member 40 different from the first embodiment will be mainly described.

  As shown in FIG. 9, the light guide member 40 constituting the backlight device 2 is adjacent to the light source device 1 and guides the light of the light source device 1 incident from the side surface from the main surface. Here, the light guide member 40 corresponds to a light guide plate, and is made of a transparent resin plate such as acrylic resin or polycarbonate formed by polymerizing acrylic acid or methacrylic acid. The light guide member 40 may be a colored translucent resin plate. Further, the light guide member 40 may be a resin plate to which a fine particle diffusion member that emits diffused light when irradiated with light is added. Similarly, the light guide member 40 may be a resin plate coated or added with a fluorescent agent that emits fluorescence when irradiated with light in the ultraviolet region or visible region.

  Further, regarding the configuration of the light guide member 40, as shown in FIGS. 9 and 10, the light guide member 40 has concave portions or convex portions arranged in a matrix at predetermined intervals. Here, the light of the light source 11 of the light source unit 10 is guided to the inside of the light guide member 40 through the side surface 40 a of the light guide member 40. In addition, a concave portion 40 c that guides light emitted from the light source 11 of the light source unit 10 as diffused light is formed on one main surface 40 b that is the main surface of the light guide member 40. Similarly, a recess 40e that guides light emitted from the light source 11 of the light source unit 10 as diffused light is formed on the other main surface 40d that is a main surface facing the one main surface 40b of the light guide member 40.

  Further, regarding the configuration of the light guide member 40, as shown in FIG. 10, most of the diffused light generated in the plurality of recesses 40c formed on the one main surface 40b of the light guide member 40 is substantially uniform surface light emission. The light is derived from the other main surface 40d of the light guide member 40 as light. Similarly, most of the diffused light generated in the plurality of recesses 40e formed on the other main surface 40d of the light guide member 40 is derived from one main surface 40b of the light guide member 40 as substantially uniform surface-emitting light. The In addition, the depth of the recess 40c on the one main surface 40b of the light guide member 40 and the recess 40e on the other main surface 40d increases each time the light from the light source unit 10 is separated from the side surface 40a of the light guide member 40. You may form as follows. Here, when the light of the light source 11 of the light source unit 10 is incident from the side surface 40a of the light guide member 40, the amount of light that propagates every time the light source 11 is separated from the side surface 40a of the light guide member 40 decreases. Even if it is separated from the side surface 40a of 40, the decrease in the amount of diffused light generated in the recess can be suppressed. Therefore, uniform surface light emission is derived from the one main surface 40b and the other main surface 40d of the light guide member 40 regardless of the distance from the side surface 40a of the light guide member 40. Such a light guide member 40 is effective when the amount of light propagating every time the light guide member 40 is separated from the side surface 40a of the light guide member 40 is greatly reduced.

  As described above, according to the backlight device 2 according to the second embodiment of the present invention, the light source device 1 that can be easily assembled without using a tool or the like is provided by the simple configuration according to the first embodiment. A predetermined object can be caused to emit light through the optical member 40.

  Furthermore, according to the backlight device 2 according to the second embodiment of the present invention, the concave portion, the convex portion, and the like, which lead the light of the light source device 1 incident from the side surface to the main surface of the light guide member 40 as diffused light, Or it can be set as the structure using what formed two or more what combined them. According to the backlight device 2 according to the first embodiment of the present invention as described above, as shown in FIG. 10, the diffused light generated in the plurality of recesses 40 c formed on the one main surface 40 b of the light guide member 40. Most of the light can be led out from the other main surface 40d of the light guide member 40 as substantially uniform surface-emitting light. Similarly, most of the diffused light generated in the plurality of recesses 40e formed on the other main surface 40d of the light guide member 40 is led out from the one main surface 40b of the light guide member 40 as substantially uniform surface-emitting light. be able to.

  Further, according to the backlight device 2 according to the second embodiment of the present invention, the housing 20 of the light source device 1 can be provided with the holding portion 20d that holds the light guide member 40. According to the backlight device 2 according to the first embodiment of the present invention, the backlight device 2 shown in FIG. 9 is attached to the holding portions 20d formed on both sides inside the housing 20 shown in FIG. By holding the light guide member 40, the side surface 40a of the light guide member 40 and the light source 11 of the light source unit 10 can be disposed in a state of being separated by a predetermined distance.

[Third Embodiment]
Hereinafter, the display device 3 according to the third embodiment of the present invention will be specifically described with reference to FIGS. 11 and 12.

  Note that the display device 3 according to the second embodiment of the present invention is characterized by having a display member 50 on which predetermined information is displayed, as shown in FIG. In addition, the configuration according to the third embodiment is the same as the configuration described in the second embodiment. Therefore, in the third embodiment, the configuration of the display member 50 different from that of the second embodiment will be mainly described.

  As shown in FIG. 11, the display member 50 constituting the display device 3 is stacked on both sides or one side of the main surface of the light guide plate 40 and displays predetermined information. Here, the display member 50 displays information including “◯ □”. Note that the information consisting of “◯ □” corresponds to “toilet” or “evacuation site”. The display member 50 is made of a milk half plate or the like. In addition, it is good also as a structure which forms the display member 50 from a base material and an adhesive material, and closely_contact | adheres to the light guide member 40 through a soft material. Moreover, you may comprise the display member 50 from two or more members from which a material differs. Specifically, the display member 50 may be composed of a vinyl chloride sheet and a methacrylic resin plate. Similarly, the display member 50 may be composed of a polyvinyl chloride sheet, a polycarbonate resin plate, or a polyvinyl chloride sheet. Here, because the polycarbonate resin plate is flame retardant, even if the components of the device installed suspended from the ceiling or the like are burned and melted, it prevents dripping on passersby and floor it can. In addition, it may replace with the polyvinyl chloride sheet | seat which comprises the display member 50, and may use a polyethylene terephthalate or a polypropylene.

  As described above, according to the display device 3 according to the third embodiment of the present invention, the backlight device 2 according to the second embodiment is provided, and predetermined information can be notified by the display member 50.

  Moreover, the manufacturing method of the light guide member 40 each provided in the backlight apparatus 2 which concerns on the 2nd Embodiment of this invention, and the display apparatus 3 which concerns on 3rd Embodiment is demonstrated concretely.

  Ultrasonic processing, heating processing, cutting processing, laser processing, molding processing, and silk printing processing can be used for the method of manufacturing the light guide plate corresponding to the light guide member 40. Therefore, by selecting each processing method according to the specification, cost, required quantity, and the like of the light guide plate, the concave portion or the convex portion can be accurately and stably formed on each surface of the light guide plate. Hereinafter, the manufacturing method of a light-guide plate is demonstrated in detail. In ultrasonic processing, a concave portion is formed on each surface of the light guide plate by partially melting each surface of the light guide plate using ultrasonic vibration of an ultrasonic processing horn that is in contact with each surface of the light guide plate. To do. Moreover, in heat processing, each surface of a light-guide plate is partially melted using the heat | fever of the processing tool contact | abutted to each surface of a light-guide plate, and a recessed part is formed in each said surface. Similarly, in the cutting process, by using a cutting tool that is rotated or biased while being in contact with each surface of the light guide plate, each surface of the light guide plate is partially scraped to form a recess on each surface. Similarly, in laser processing, each surface of the light guide plate is partially melted by using the heat of the laser light condensed on each surface of the light guide plate, thereby forming recesses on the respective surfaces. Similarly, in the molding process, a shape reflecting the outer shape of the light guide plate to be molded is formed inside the mold, and the mold softened by heating is injected into the mold mounted on the injection molding machine. Then, by cooling the resin, a concave portion, a convex portion or a concave shape and a convex portion are formed on each surface of the light guide plate.

  Further, regarding the method of manufacturing a light guide plate corresponding to the light guide member 40, in silk printing, a plate having predetermined holes is brought into contact with each surface of the light guide plate, and a curable resin is applied through the holes. A convex portion is formed on each surface by adhering to each surface and partially covering each surface with resin. Moreover, you may add the fine particle-shaped diffusion member which emits diffused light to resin which is a base material of the light-guide plate used for a shaping | molding process or a silk printing process. Similarly, a resin obtained by adding a particulate diffusion member that emits diffused light to a resin that is a base material of a light guide plate that performs the above-described ultrasonic processing, heating processing, cutting processing, or laser processing may be used. The light guide plate may be formed by combining the ultrasonic processing, heating processing, cutting processing, laser processing, molding processing, and silk printing processing described above. Specifically, only the outer shape of the light guide plate may be formed by molding, and the concave portions may be formed on each surface of the light guide plate by ultrasonic processing. Similarly, after forming only the outer shape of the light guide plate by molding, the convex portions may be formed on each surface of the light guide plate by silk printing.

[Fourth Embodiment]
Hereinafter, the fixing member according to the fourth embodiment of the present invention and the light source device using the same will be described in detail with reference to FIGS. 13 to 15. The light source device 4 using the fixing member 60 according to the fourth embodiment corresponds to a modification of the light source device according to the first embodiment. Therefore, in the following description, the same components as those in FIGS. The light source device 4 includes a light source unit 10, a fixing member 60, and a housing 70.

  The light source unit 10 that constitutes the light source device 4 is substantially the same as the configuration shown in FIG. 3, and again includes a light source 11, a substrate 12, a holding member 13, and wiring 14. Since the configuration and operational effects of each part are as described above, the description thereof is omitted here.

  The structure of the fixing member 60 is shown in FIGS. 13A is a perspective view of the fixing member 60 viewed from obliquely above, FIG. 13B is a perspective view of the fixing member 60 viewed obliquely from below, and FIG. 13C is a perspective view of the fixing member 60. The front view seen from the insertion direction to the housing 70, FIG.13 (d) has each shown the side view which looked at the said fixing member 60 from the side. The fixing member 60 is for fixing the light source unit 10 to the housing 70, and is made of, for example, nylon 66 (with glass) and has a polygonal shape with a plurality of irregularities and opening holes. Nylon 66 is a synthetic fiber obtained by completely artificial synthesis.

  As shown in these drawings, the fixing member 60 has a holding portion 65 having a flat surface 65a with which a contact surface 70e (described later) of the housing 70 comes into contact when the housing 70 is mounted. Furthermore, the fixing member 60 includes a pair of anchoring portions 61 extending in the insertion direction from the flat surface 65a of the holding portion 65 to the housing 70, and the bottom surface of the anchoring portion 61 has a projecting-like second shape formed of a substantially trapezoidal base. One mooring part 61a is formed. The first mooring portion 61 a is moored to the first connecting portion 13 a of the holding member 13 of the light source unit 10 when attached to the housing 70. Further, the fixing member 60 includes a pair of opposed side surface parts 62 erected from at least a part of the upper surface of the mooring part 61. In the side surface part 62, the second mooring part 62a protrudes outward. Is formed. In this example, the second mooring portion 62a has, for example, a substantially columnar shape with a half of a predetermined inclination angle. However, it is not limited to this shape. The second mooring portion 62a is moored to a second connecting portion 70a (described later) of the housing 70 when the housing 70 is mounted. Here, a part of the corner of the second mooring portion 62a is dropped for the convenience of mounting to the housing 70. Further, the fixing member 60 has a contact portion 63 that extends below the mooring portion 61 from the flat surface 65 a to be shorter than the mooring portion 61. The contact portion 63 is attached to the housing 70. A contact surface 63a with which the flat surface 13d of the holding member 13 of the light source unit 10 contacts is provided. Furthermore, the fixing member 60 includes a back surface portion 64, and the back surface portion 64 is provided with a pair of cylindrical openings through which the wirings 14 of the light source unit 10 are inserted, that is, wiring holes 64a. Under such a configuration, when the fixing member 60 is attached to the housing 70, the fixing member 60 protrudes only by the width in the insertion direction of the holding portion 65 into the housing portion 70 (indicated by “a” in FIG. 13D). Therefore, the entire apparatus can be reduced in size.

  Here, the fixing member 60 is provided at one end of the light source unit 10 and the housing 70, but is not limited to this configuration, and may be provided at both ends of the light source unit 10 and the housing 70. When the fixing member 60 is provided only at one end of the light source unit 10 and the casing 70, a sealing lid (not shown) may be provided at the other end of the light source unit 10 and the casing 70.

  On the other hand, the structure of the housing 70 is as shown in FIGS. 14 (a) and 14 (b). 14A is a perspective view of the housing 70, and FIG. 14B is a cross-sectional view of the housing 70. FIG. The housing 70 is for housing the light source unit 10 and is made of a metal plate such as an aluminum alloy having a substantially U-shaped cross section. However, it is not limited to this. Below that, a mounting surface 70b for mounting the light source unit 10 is provided. Further, each side surface portion 70 c of the housing 70 is provided with a second connecting portion 70 a for being anchored by the second anchoring portion 62 a of the fixing member 60. In this example, the second connecting portion 70a has a shape that is cut out in a semi-cylindrical shape downward from the upper surface of the housing 70, but is not limited thereto. The casing 70 also includes a pair of holding portions 70 d that hold the light guide member 40 when the backlight device 2 is configured. In such a configuration, the light guide member 40 is placed and held on the holding portion 70d. Further, the housing 70 includes a contact surface 70e that contacts the flat surface 65a of the holding portion 65 of the fixing member 60. When the fixing member 60 is mounted, the abutment surface 70e comes into contact with the flat surface 65a of the holding portion 65 of the fixing member 60, so that the state is held without being shaken.

  Here, a method for assembling the light source device 4 will be described with reference to FIGS. Here, for convenience of explanation, the light guide plate member 40 is also illustrated. A pair of first connecting portions having a notch shape formed in the holding member 13 of the light source unit 10 in a state where the wiring 14 of the light source unit 10 is inserted into the pair of cylindrical opening wiring holes 64a in the fixing member 60. A pair of first mooring portions 61 a formed in a projecting shape formed on the mooring portion 61 of the fixing member 60 are moored on 13 a. Next, in a state where the light source unit 10 is inserted into the housing 70, the pair of second connection portions 70 a formed in the side surface portion 70 c of the housing 70 and having a semi-hole shape are connected to the side surface portion 62 of the fixing member 60. The pair of second mooring portions 62a formed of the protruding shape is moored. Therefore, the light source unit 10, the fixing member 60, and the housing 70 that constitute the light source device can be easily assembled and disassembled without using a tool. Further, since the second mooring portion 60a of the fixing member 60 is moored to the second connecting portion 70a having a shape cut out in a semi-cylindrical shape downward from the upper surface of the housing 70, it is incorporated into the structure. In this state, the fixing member 60 can be easily attached and detached.

  As described above, the light source device 4 using the fixing member 60 according to the fourth embodiment of the present invention can be easily assembled without using a tool or the like with a simple configuration. Specifically, for example, when the light source unit 10 is replaced, the second mooring portion 62a is detached from the second connecting portion 70a by picking the side surface portion 62 with tools such as radio pliers and pliers. There is no burden. Further, for example, the light source unit 10 can be replaced without special skills. Therefore, the present invention is not limited to replacing the light source unit 10 due to the life of the light source unit 10, and can be easily replaced even when, for example, it is desired to change the emission color. Further, the light source device 4 using the fixing member 60 uses the fixing member 60 after the light source unit 10 and the housing 70 are cut at an arbitrary length and the second connecting portion 70a is grooved by an end mill or the like. Can also be moored.

  Furthermore, in the light source device 4 using the fixing member 60 according to the fourth embodiment of the present invention, the light source unit 10 is held by stacking the light source 11, the substrate 12 on which the light source 11 is disposed, and the substrate 12. The holding member 13 can be configured so that the first connecting portion 13a is formed on the holding member 13, and the fixing member 60 can be easily fixed to the light source unit 10 in a short time. Furthermore, when the attachment and detachment is performed a plurality of times, the reproducibility of the positions of the fixing member 60 and the light source unit 10 can be sufficiently maintained.

  In the light source device 4 using the fixing member 60 according to the fourth embodiment of the present invention, the first mooring portion 61a and the second mooring portion 62a of the fixing member 60 are formed in a protruding shape, and the light source unit 10 It can be set as the structure which forms the 1st connection part 13a and the 2nd connection part 70a of the housing | casing 70 in a notch or groove shape. Also, the reverse relationship may be used. That is, the fixing member 60 can be detachably anchored and fixed to the light source unit 10 with a very simple configuration.

  Furthermore, in the light source device 4 using the fixing member 60 according to the fourth embodiment of the present invention, the first mooring part 61a of the mooring part 61 of the fixing member 60 is moored to the first connecting part 13a of the light source unit 10. In this state, the light source unit 10 is inserted into the housing 70, and the second mooring portion 62 a of the side surface portion 62 of the fixing member 60 can be moored to the second connecting portion 70 a of the housing 70. Therefore, it can be easily assembled in a short time without using a tool, and can be disassembled without using a special tool. Furthermore, since the second mooring portion 60a of the fixing member 60 has a shape that is cut out in a semi-cylindrical shape downward from the upper surface of the housing 70, the fixing member 60 can be easily mounted even in a state of being incorporated in a structure. It can be removed.

  In the light source device 4 using the fixing member 60 according to the fourth embodiment of the present invention, the holding member 60 is provided in the light source unit 10 in the wiring hole 64a and the wiring 14 to which driving power is supplied from the outside is inserted. It can be set as the structure to do. Therefore, when the fixing member 60 is anchored and fixed to the light source unit 10, the wiring 14 of the light source unit 10 can be prevented from interfering with other components. Further, the wire 14 can be prevented from being disconnected by using the fixing member 60.

  Furthermore, in the holding member 60 according to the fourth embodiment of the present invention, a fixing member that is mounted on the housing 70 in order to fix the light source unit 10 mounted on the holding member 13 to the housing 70 together with the holding member 13. 60, a holding part 65 having a flat surface 65a with which the contact surface 70e of the case 70 comes into contact when mounted on the case 70, and a pair extending from the flat surface 65a of the holding part 65 in the insertion direction into the case 70. The mooring portion 61 and a pair of opposing side surface portions 62, and the mooring portion 61 has a first mooring portion 61 a moored to the holding member 13 that holds the light source unit 10 when attached to the housing 70. In addition, the side surface portion 62 may be configured to have a second mooring portion 62 a that is moored to the housing 70 when attached to the housing 70.

  Finally, the configurations and main functions and effects of the light source devices 1, 4, the backlight device 2, the display device 3, and the fixing members used for them according to the first to fourth embodiments of the present invention are as follows This will be described in detail.

  The light source device 1 according to claim 1 includes a light source unit 10 that emits light, a housing 20 that houses the light source unit 10, and a fixing member 30 that fixes the light source unit 10 to the housing 20. The mooring portion 31 (the first mooring portion 31a and the second mooring portion 31b) formed in the 30 is connected to the first connecting portion 13a formed in the light source unit 10 and the second connecting portion 20a formed in the housing 20. , Each is moored.

  According to such a light source device 1 of the first aspect, the light source device 1 can be easily assembled with a simple configuration without using a tool or the like. Specifically, according to the light source device 1 of the first aspect, for example, when the light source unit 10 is replaced, a burden is not imposed on the operator. Further, for example, the light source unit 10 can be replaced without special skills. Therefore, not only when the light source unit 10 is replaced due to the life of the light source unit 10, but also when, for example, it is desired to change the emission color, it can be easily replaced. Further, after the light source unit 10 and the housing 20 are cut to an arbitrary length, they can be moored using the fixing member 30.

  The light source device 1 according to claim 2 is dependent on claim 1, and the light source unit 10 is provided with a light source 11 and a substrate 12 on which the light source 11 is disposed, and the substrate 12 is provided with a first connecting portion. It is characterized by being.

  According to the light source device 1 described in claim 2, the first mooring portion 31 a of the mooring portion 31 formed on the fixing member 30 is moored to the first coupling portion (not shown) formed on the substrate 12. Thus, the fixing member 30 can be easily fixed to the light source unit 10 in a short time. Furthermore, when the attachment and detachment is performed a plurality of times, the reproducibility of the positions of the fixing member 30 and the light source unit 10 can be sufficiently maintained.

  The light source device 1 according to claim 3 is dependent on claim 1, and the light source unit 10 includes a light source 11, a substrate 12 on which the light source 11 is disposed, and a holding member 13 that holds the substrate 12 in a stacked manner. The holding member 13 is characterized in that a first connecting portion 13a is formed.

  According to the light source device 1 described in claim 3, the first mooring portion 31 a of the mooring portion 31 formed on the fixing member 30 is moored to the first connecting portion 13 a formed on the holding member 13. Thus, the fixing member 30 can be easily fixed to the light source unit 10 in a short time. Furthermore, when the attachment and detachment is performed a plurality of times, the reproducibility of the positions of the fixing member 30 and the light source unit 10 can be sufficiently maintained.

  The light source device 1 according to a fourth aspect is dependent on the first aspect, wherein the anchoring portion 31 of the fixing member 30 is formed in a protruding shape, and the first connection portion 13 a of the light source unit 10 and the second connection of the housing 20. The part 20a is formed in a hole shape or a notch shape.

  According to the light source device 1 of the fourth aspect, the fixing member 30 can be detachably anchored and fixed to the light source unit 10 with a very simple configuration.

  The light source device 1 according to a fifth aspect is dependent on the first aspect, wherein the anchoring portion 31 of the fixing member 30 is formed in a hole shape or a notch shape, and the first connecting portion 13a of the light source unit 10 and the housing 20 are provided. The second connecting part 20a is formed in a protruding shape.

  According to the light source device 1 of the fifth aspect, the fixing member 30 can be detachably anchored and fixed to the light source unit 10 with a very simple configuration.

  The light source device 1 according to a sixth aspect is dependent on the first aspect, wherein the first mooring part 31 a of the mooring part 31 of the fixing member 30 is moored to the first coupling part 13 a of the light source unit 10. The unit 10 is inserted into the housing 20, and the second mooring portion 31 b of the mooring portion 31 of the fixing member 30 is moored to the second connecting portion 20 a of the housing 20.

  According to such a light source device 1 of the sixth aspect, the light source device 1 can be easily assembled in a short time without using a tool, and can be disassembled without using a tool.

  The light source device 1 according to a seventh aspect is dependent on the first aspect, and the fixing member 30 is provided with a wiring 14 provided in the light source unit 10 and supplied with driving power from the outside.

  According to such a light source device 1 of claim 7, when the fixing member 30 is anchored and fixed to the light source unit 10, the wiring 14 of the light source unit 10 interferes with other components. Can be prevented. In addition, disconnection of the wiring 14 can be prevented by using the fixing member 30.

  The backlight device 2 according to an eighth aspect includes the light source device 1 according to the first aspect and a light guide member 40 that is adjacent to the light source device 1 and that guides light from the light source device 1 incident from the side surface from the main surface. It is characterized by having.

  According to the backlight device 2 described in claim 8, the light source device 1 that can be easily assembled without using a tool or the like with a simple configuration is provided, and a predetermined object is provided via the light guide member 40. Can emit light.

  The backlight device 2 according to a ninth aspect is dependent on the eighth aspect, wherein the main surface of the light guide member 40 has a concave portion, a convex portion, or a convex portion that guides the light of the light source device 1 incident from the side surface as diffused light. It is characterized in that a plurality of combinations thereof are formed.

  According to the backlight device 2 described in claim 9, as shown in FIG. 10, most of the diffused light generated in the plurality of concave portions 40 c formed on the one main surface 40 b of the light guide member 40 is reduced. The light can be derived from the other main surface 40d of the light guide member 40 as substantially uniform surface emitting light. Similarly, most of the diffused light generated in the plurality of recesses 40e formed on the other main surface 40d of the light guide member 40 is led out from the one main surface 40b of the light guide member 40 as substantially uniform surface-emitting light. be able to.

  The backlight device 2 according to claim 10 is dependent on claim 8 and is characterized in that a holding portion 20 d for holding the light guide member 40 is formed in the housing 20 of the light source device 1.

  According to the backlight device 2 described in claim 10, the light guide constituting the backlight device 2 shown in FIG. 9 is formed on the holding portions 20 d formed on both sides inside the housing 20 shown in FIG. 5. By holding the member 40, the side surface 40a of the light guide member 40 and the light source 11 of the light source unit 10 can be disposed in a state of being separated by a predetermined distance.

  The display device 3 according to an eleventh aspect includes the backlight device 2 according to the eighth aspect and a display member 50 that is stacked on both sides or one side of the main surface of the light guide plate 40 and displays predetermined information. It is characterized by that.

  According to the display device 3 described in claim 11, the backlight device 2 is provided, and predetermined information can be notified by the display member 50.

  The light source device 4 according to a twelfth aspect is dependent on the first aspect, and the light source unit 10 includes a light source 11, a substrate 12 on which the light source 11 is disposed, and a holding member 13 that holds the substrate 12 in a stacked manner. The holding member 13 is formed with a notch-shaped first connection portion 13a, the housing 70 is formed with a notch-shaped second connection portion 70a, and the fixing member has first and second protrusion-like shapes. Second mooring portions 61a and 62a are formed, the first mooring portion 61a is moored to the first connecting portion 13a, and the second mooring portion 62a is moored to the second connecting portion 70a. It is said.

  In such a light source device 4 according to the twelfth aspect, the light source device 4 can be easily assembled in a short time without using a tool, and can be disassembled without using a special tool. Furthermore, the fixing member 60 can be easily attached and detached even in a state of being incorporated in the structure.

  The light source device 4 according to a thirteenth aspect is dependent on the first aspect, and the light source unit 10 includes a light source 11, a substrate 12 on which the light source 11 is disposed, and a holding member 13 that holds the substrate 12 in a stacked manner. The holding member 13 is formed with a notched first connecting portion 13a, the housing 70 is formed with a notched second connecting portion 70a, and the fixing member 60 is connected to the housing 70. A pair of mooring portions 61 extending in the insertion direction is provided, and a first mooring portion 61a having a substantially trapezoidal shape is formed on the lower surface of the mooring portion 61, and the fixing member 60 is also opposed to a pair. The side part 62 is provided, and the side part 62 has a substantially cylindrical second mooring part 62a whose angle is dropped at a predetermined inclination angle by about a half, and protrudes outward. The first mooring part 61a is moored and the second station Wherein the part 70a a second anchoring portion 62a is characterized in that it is anchored.

  In the light source device 4 according to the thirteenth aspect, the light source device 4 can be easily assembled in a short time without using a tool, and can be disassembled without using a special tool. Furthermore, since the second mooring portion 60a of the fixing member 60 has a shape that is cut out in a semi-cylindrical shape downward from the upper surface of the housing 70, the fixing member 60 can be easily mounted even in a state of being incorporated in a structure. It can be removed.

  The fixing member 60 according to claim 14 is a fixing member 60 attached to the housing 70 in order to fix the light source unit 10 mounted on the holding member 13 to the housing 70 together with the holding member 13. A holding portion 65 having a flat surface 65a with which the contact surface 70e of the housing 70 comes into contact when mounted on the housing 70, and a pair of mooring portions extending from the flat surface 65a of the holding portion 65 in the insertion direction into the housing 70. 61 and a pair of opposing side surface parts 62 erected from at least a part of the upper surface of the mooring part 61, and holds the light source unit 10 in the mooring part 61 when mounted on the housing 70. It has the 1st mooring part 61a moored to the said holding member 13, and has the 2nd mooring part 62a moored to the said housing 70 in the said side part 62 at the time of the mounting | wearing to the said housing 70. Features It is.

  In such a fixing member 60 according to the fourteenth aspect, since only the width of the holding portion 65 protrudes when the fixing member 60 is attached to the housing 70, it is possible to contribute to downsizing of the entire apparatus. In addition, even after being attached to the housing 70, that is, after being incorporated into a device, it can be easily and quickly attached and detached.

  A fixing member 60 according to a fifteenth aspect is dependent on the fourteenth aspect, wherein the first anchoring portion is formed in a protruding shape on the lower surface of the anchoring portion. Furthermore, the fixing member 60 according to a sixteenth aspect is dependent on the fourteenth aspect, wherein the second mooring portion is formed in a protruding shape from the side surface portion toward the outside.

  Since the fixing member 60 according to the fifteenth and sixteenth aspects is realized with a simple configuration, it can be attached and detached in a short time without using a special tool.

  In addition, the fixing member 60 according to the seventeenth aspect is dependent on the fourteenth aspect and further includes a back surface portion, and the back surface portion is provided with a pair of openings through which the wiring of the light source unit is inserted. It is characterized by being.

  In such a fixing member 60 according to claim 17, when the fixing member 60 is anchored and fixed to the light source unit 10, the wiring 14 of the light source unit 10 is prevented from interfering with other components. it can. Further, the wire 14 can be prevented from being disconnected by using the fixing member 60.

DESCRIPTION OF SYMBOLS 1 Light source apparatus 2 Backlight apparatus 3 Display apparatus 4 Light source apparatus 10 Light source unit 11 Light source 12 Board | substrate 12a Mounting surface 12b Electrode 13,15 Holding member 13a 1st connection part 13b, 15b, 15d Laminating surface 13c Side part 14 Wiring 20 Case 20a 2nd connection part 20b mounting surface 20c side part 20d holding | maintenance part 30 fixing member
30p One surface 30q Mounting portion 30r Wiring hole 31 Mooring portion 31a First mooring portion 31b Second mooring portion 40 Light guide member 40 Light guide plate 40a Side surface 40b One main surface 40c, 40e Recess 40d Other main surface 50 Display member 60 Fixing member 61 Mooring portion 61a First mooring portion 62 Side surface portion 62a Second mooring portion 63 Contact portion 63a Contact surface 64 Back surface portion 64a Wiring hole 65 Holding portion 65a Flat surface 70 Housing 70a Second connection portion 70b Placement surface 70c Side surface portion 70d Holding Part 70e contact surface

Claims (17)

A light source unit that emits light;
A housing for housing the light source unit;
A fixing member for fixing the light source unit to the housing;
The light source device, wherein a mooring portion formed on the fixing member is moored to a first connecting portion formed on the light source unit and a second connecting portion formed on the housing. The light source device according to claim 1, wherein the light source unit includes a light source and a substrate on which the light source is disposed, and the first connecting portion is formed on the substrate. The light source unit includes a light source, a substrate on which the light source is disposed, and a holding member that stacks and holds the substrate, and the first connecting portion is formed on the holding member. The light source device according to 1. The anchoring portion of the fixing member is formed in a protruding shape,
The light source device according to claim 1, wherein the first connection part of the light source unit and the second connection part of the housing are formed in a hole shape or a notch shape. The anchoring portion of the fixing member is formed in a hole shape or a notch shape,
The light source device according to claim 1, wherein the first connection part of the light source unit and the second connection part of the housing are formed in a protruding shape. In a state where the first mooring part of the mooring part of the fixing member is moored to the first connection part of the light source unit,
The light source unit is inserted into the housing;
The light source device according to claim 1, wherein a second mooring portion of the mooring portion of the fixing member is moored to the second coupling portion of the housing. The light source device according to claim 1, wherein the fixing member is inserted through a wiring provided in the light source unit and supplied with driving power from the outside. A light source device according to claim 1;
A backlight device comprising: a light guide member that is adjacent to the light source device and guides light of the light source device incident from a side surface from a main surface. A plurality of concave portions, convex portions, or a combination thereof, for guiding the light of the light source device incident from the side surface as diffused light, is formed on the main surface of the light guide member. Item 9. The backlight device according to Item 8. The backlight device according to claim 8, wherein a holding portion that holds the light guide member is formed in the casing of the light source device. The backlight device according to claim 8;
And a display member that is laminated on both sides or one side of the main surface of the light guide plate and displays predetermined information. The light source unit includes the light source, a substrate on which the light source is disposed, and the holding member that stacks and holds the substrate, and the holding member is formed with the cut-out first connection portion, The notch-shaped second connecting portion is formed in the housing, the first and second mooring portions are formed on the fixing member, and the first mooring portion is moored on the first connecting portion. The light source device according to claim 1, wherein the second mooring portion is moored to the second connecting portion. The light source unit includes the light source, a substrate on which the light source is disposed, and the holding member that stacks and holds the substrate, and the holding member is formed with the cut-out first connection portion, The notch-shaped second connecting portion is formed in the housing, and the fixing member includes a pair of anchoring portions extending in the insertion direction into the housing, and a protrusion made of a substantially trapezoidal base on the lower surface of the anchoring portion. The first mooring portion is formed, and the fixing member has a pair of opposed side surface portions, and the second mooring portion having a substantially cylindrical shape protrudes outward at the side surface portion. The light source device according to claim 1, wherein the first mooring portion is moored to the first connecting portion, and the second mooring portion is moored to the second connecting portion. A fixing member attached to the housing for fixing the light source unit mounted on the holding member together with the holding member to the housing;
A holding portion having a flat surface against which the contact surface of the housing comes into contact when mounted on the housing;
A pair of anchoring portions extending in the insertion direction from the flat surface of the holding portion to the housing;
A pair of opposing side surface portions erected from at least part of the upper surface of the mooring portion;
The mooring part has a first mooring part moored to the holding member that holds the light source unit when the mooring part is attached to the housing, and the side part is provided with the mooring part when being attached to the housing. A fixing member having a second mooring portion moored to the housing. The fixing member according to claim 14, wherein the first mooring part is formed in a protruding shape on a lower surface of the mooring part. The fixing member according to claim 14, wherein the second mooring part is formed in a protruding shape from the side part toward the outside. The fixing member according to claim 14, further comprising a back surface portion, wherein the back surface portion is provided with a pair of openings through which wiring of the light source unit is inserted.