Display device and television receiver

Abstract

To provide a display device and a television receiver for which the number of parts has been reduced.SOLUTION: The display device includes a light source, a diffusing lens that diffuses light from the light source, a substrate on which the light source and the diffusing lens are mounted to one surface, a chassis provided on one or other surface of the substrate, and a reflective sheet provided on the one surface of the substrate or chassis. The diffusing lens has legs on its bottom surface and is mounted to the substrate by the legs. The reflective sheet has a through-hole, the diameter of which is smaller than that of the diffusing lens, and an adjacent through-hole, the diameter of which is larger than that of the diffusing lens, adjacent to the through-hole and fixed by the diffusing lens.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a display device and a television receiving device. [Background technology]

[0002] In recent years, image display devices such as television receivers are shifting from conventional cathode ray tubes to thin display devices that use thin display elements such as liquid crystal panels and plasma display panels. When liquid crystal panels are used as display elements, a backlight device is required as a separate lighting device because the liquid crystal panel does not emit light on its own.

[0003] In a direct type (transmissive type) backlight device, the reflective sheet may be fixed to the chassis together with the substrate (light source block) by rivets so that the chassis reflective sheet does not float up.

[0004] For example, in Patent Document 1, in a lighting device including an LED, a substrate, a chassis, and a chassis reflection sheet, rivets are used to fix the chassis reflection sheet to the chassis. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2012 / 023458 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the lighting device described in Patent Document 1 uses rivets to secure the reflective sheet to the chassis. For example, in the case of a 70-inch television receiver, dozens of rivets are required, and each of these dozens of rivets must be attached to the chassis, etc., resulting in a large number of parts in the device.

[0007] In view of the above problem, an object of the present disclosure is to provide a display device and a television receiver with a reduced number of parts. [Means for solving the problem]

[0008] In one aspect of the present disclosure, a light source is provided, a diffusion lens that diffuses light from the light source, a substrate on one side of which the light source and diffusion lens are mounted, a chassis provided on one or the other side of the substrate, and a reflective sheet arranged on the one side of the substrate or the chassis, wherein the diffusion lens has legs on a bottom surface and is mounted to the substrate by the legs, and the reflective sheet has a through hole smaller than the diameter of the diffusion lens and an adjacent through hole adjacent to the through hole and larger than the diameter of the diffusion lens, and is fixed by the diffusion lens. Effect of the Invention

[0009] As described above, according to the present disclosure, it is possible to provide a display device and a television receiver with a reduced number of parts. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an exploded perspective view showing a schematic configuration of a television receiving device. [Diagram 2] FIG. 2 is an exploded perspective view showing a schematic configuration of a display device according to a first embodiment included in the television receiver of FIG. [Diagram 3] FIG. 3 is a cross-sectional view showing a cross-sectional configuration along the long side direction of a display device according to a reference example. [Figure 4] FIG. 4 is a cross-sectional view showing a cross-sectional configuration along the long side direction of the display device of FIG. [Diagram 5] FIG. 5 is an enlarged cross-sectional view of the periphery of the diffusion lens in FIG. 4, showing the reflective sheet provided in the display device according to the first embodiment before the reflective sheet is disposed on the substrate and fixed. [Figure 6] FIG. 6 is a plan view of FIG. [Figure 7]Figure 7 is an enlarged cross-sectional view of the area around the diffusion lens in Figure 4, and shows the display device of the first embodiment after the reflective sheet has been placed on the substrate and the reflective sheet has been fixed. [Figure 8] FIG. 8 is a plan view of FIG. [Figure 9] FIG. 9 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing a state in which a reflective sheet provided in the display device according to the second embodiment is disposed on a substrate before the reflective sheet is fixed. [Figure 10] FIG. 10 is a plan view of FIG. [Figure 11] FIG. 11 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing the state after the reflective sheet provided in the display device according to the second embodiment has been disposed on the substrate and fixed. [Figure 12] FIG. 12 is a plan view of FIG. [Figure 13] FIG. 13 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing a state in which a reflective sheet provided in the display device according to the third embodiment is disposed on a substrate before the reflective sheet is fixed. [Figure 14] FIG. 14 is a plan view of FIG. [Figure 15] FIG. 15 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing a state in which the reflective sheet of the display device according to the third embodiment is disposed on the substrate and fixed thereto. [Figure 16] FIG. 16 is a plan view of FIG. [Figure 17] FIG. 17 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing the state after the reflective sheet provided in the display device according to the third embodiment is disposed on the substrate and fixed. [Figure 18] FIG. 18 is a plan view of FIG. [Figure 19] FIG. 19 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing a state in which the reflective sheet of the display device according to the fourth embodiment is disposed on the chassis and is in the process of being fixed. [Figure 20] FIG. 20 is a plan view of FIG. [Figure 21] FIG. 21 is an enlarged cross-sectional view of the periphery of the diffusion lens, showing the state after the reflective sheet provided in the display device according to the fourth embodiment is disposed on the chassis and fixed. [Figure 22] FIG. 22 is a plan view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A preferred embodiment of the present disclosure will be described in detail below with reference to the drawings. Note that the present embodiment described below does not unduly limit the contents of the present disclosure described in the claims, and not all of the configurations described in the present embodiment are necessarily essential as a means of solving the present disclosure. Note that X-axis, Y-axis, and Z-axis are depicted in a portion of each drawing, and each axial direction is depicted in a common direction in each drawing. Also, the upper side shown in FIG. 3 is the front side, and the lower side of the drawing is the back side.

[0012] [First embodiment] As shown in FIG. 1, a television receiver TV including a display device 10 according to the first embodiment is configured to include at least the display device 10, front and back cabinets Ca and Cb that sandwich the display device 10, a power source P, a tuner T, and a stand S. The display device 10 has a horizontally long square (rectangular) shape overall, and is stored in a vertically placed state. As shown in FIG. 2, the display device 10 includes a liquid crystal panel 11 that is a display panel, and a backlight device 12 (illumination device) that is an external light source, which are integrally held by a frame-shaped bezel 13 or the like. In this embodiment, a display device with a screen size of 42 inches and an aspect ratio of 16:9 is exemplified.

[0013] Next, the liquid crystal panel 11 and the backlight device 12 constituting the display device 10 will be described in order. The liquid crystal panel 11 (display panel) has a rectangular shape in a plan view, and is configured by bonding a pair of glass substrates with a predetermined gap therebetween, and sealing liquid crystal between the two glass substrates. On one glass substrate, switching elements (e.g., TFTs) connected to source wiring and gate wiring perpendicular to each other, pixel electrodes connected to the switching elements, and an alignment film are provided, while on the other glass substrate, color filters in which colored portions such as R (red), G (green), and B (blue) are arranged in a predetermined arrangement, counter electrodes, and an alignment film are provided. Polarizing plates 11A and 11B are provided on the outer sides of both glass substrates, respectively.

[0014] Next, the backlight device 12 will be described in detail. The backlight device 12 is a so-called direct-type backlight device in which a plurality of LED units are provided directly under the rear surface of the panel surface (display surface) of the liquid crystal panel 11. As shown in Fig. 2, the backlight device 12 includes a substantially box-shaped chassis 14 that opens on the light-emitting surface side (liquid crystal panel 11 side), a group of optical members 15 (a diffusion plate 15a and a plurality of optical sheets 15b arranged between the diffusion plate 15a and the liquid crystal panel 11) arranged so as to cover the opening of the chassis 14, a frame 16 that is arranged along the outer edge of the chassis 14 and sandwiches and holds the outer edge of the group of optical members 15 between the chassis 14, and a reflection sheet 22 that covers almost the entire inner surface of the chassis 14 and reflects light in the chassis 14 toward the optical members 15.

[0015] Furthermore, a plurality of LED units (light source units) having LEDs (Light Emitting Diodes) as light sources 17 are housed inside the chassis 14, and support pins 20 are provided for supporting the optical members 15 and holding the substrate 18 (LED substrate). Note that in the backlight device 12, the optical members 15 side (front side) relative to the LED units is the light emission side.

[0016] The chassis 14 is made of metal, and as shown in Figs. 2 and 3, it is made up of a bottom plate 14a having a rectangular shape similar to that of the liquid crystal panel 11, side plates 14b rising from the outer ends of each side of the bottom plate 14a, and receiving plates 14c projecting outward from the rising ends of the side plates 14b, and as a whole has a shallow, approximately box-like shape (approximately shallow dish-like shape) that opens toward the front side. The long side direction of the chassis 14 coincides with the X-axis direction (horizontal direction), and the short side direction coincides with the Y-axis direction (vertical direction). On each receiving plate 14c of the chassis 14, a frame 16 and an optical member 15 (described later) can be placed from the front side. The frame 16 is screwed to each receiving plate 14c. The chassis 14 has support pin attachment holes 14d at locations corresponding to the installation positions of the support pins 20.

[0017] 2, the optical member 15 has a horizontally elongated square (rectangular) shape in a plan view, similar to the liquid crystal panel 11 and the chassis 14. As shown in FIG. 3, the optical member 15 has its outer edge placed on the receiving plate 14c, thereby covering the opening of the chassis 14 and being disposed between the liquid crystal panel 11 and the LED unit.

[0018] The optical member 15 is composed of a diffusion plate 15a arranged on the back side (the LED unit side, the side opposite to the light output side) and an optical sheet 15b arranged on the front side (the liquid crystal panel 11 side, the light output side). The diffusion plate 15a is configured by dispersing a large number of diffusion particles in a substantially transparent resin base material having a predetermined thickness, and has a function of diffusing the light that passes through it. The optical sheet 15b is in the form of a sheet having a smaller plate thickness than the diffusion plate 15a. Specific types of the optical sheet 15b include, for example, a diffusion sheet, a lens sheet, a reflective polarizing sheet, etc., and it is possible to appropriately select and use one from these.

[0019] As shown in Fig. 2, the frame 16 is in the shape of a frame that fits along the outer periphery of the liquid crystal panel 11 and the optical member 15. As shown in Fig. 3, the outer periphery of the optical member 15 can be sandwiched between the frame 16 and each receiving plate 14c. The frame 16 can also support the outer periphery of the liquid crystal panel 11 from the back side. The bezel 13 is fixed to the front side of the frame 16 with screws. This allows the outer periphery of the liquid crystal panel 11 to be sandwiched between the bezel 13 and the frame 16.

[0020] Next, the LED unit (light source unit) will be described in detail. As shown in FIG. 2, the LED unit has a long shape in the X-axis direction, and a plurality of sets (nine sets in this embodiment) are arranged along the Y-axis direction. The LED unit is mainly composed of a light source 17 (LED) and a board 18 (LED board) on which the light source 17 (LED) is mounted. The LED unit is also provided with a diffusion lens 19 that is attached to the board 18 (LED board) at a position corresponding to the light source 17 (LED). Below, the components of the LED unit will be described in detail one by one.

[0021] The light source 17 (LED) is a type of point light source that is dot-like in plan view, and a plurality of light sources (17 in this embodiment) are arranged along the long side direction (X-axis direction) of the substrate 18 (LED substrate). The light source 17 (LED) is configured by sealing an LED chip with a resin material on a substrate part fixed to the substrate 18 (LED substrate). The LED chip mounted on the substrate part has one type of main emission wavelength, and specifically, one that emits monochromatic blue light is used. Meanwhile, a fluorescent material that converts the blue light emitted from the LED chip into white light is dispersed and blended in the resin material that seals the LED chip. This allows the light source 17 (LED) to emit white light.

[0022] 2, the substrate 18 (LED substrate) has a rectangular shape elongated in the X-axis direction in plan view, and is housed in the chassis 14 supported on the other side of the substrate with the long side aligned with the X-axis direction and the short side aligned with the Y-axis direction, while extending along the bottom plate 14a. That is, the light source 17 (LED) is disposed on the bottom plate 14a of the chassis. Also, connectors are provided on both ends of the long side of the substrate 18 (LED substrate).

[0023] The display device 100 according to the reference example and the display device 10 according to the first embodiment will be described in detail below.

[0024] First, a display device 100 according to a reference example will be described. FIG. 3 is a cross-sectional view showing a cross-sectional configuration along the long side direction of the display device 100 according to the reference example. As shown in FIG. 3, in the display device 100 according to the reference example, the substrate 18 or the chassis 14 is fixed by rivets 21. However, for example, in the case of a 70-inch television receiver, several tens of rivets 21 are required, and each of the several tens of rivets 21 is attached to the chassis 14 or the like, resulting in a large number of parts of the device. Therefore, according to the display device 10 according to the first embodiment, the number of parts can be reduced.

[0025] 4 is a cross-sectional view showing a cross-sectional configuration along the long side direction of the display device 10 according to the first embodiment of FIG. 2. As shown in FIG. 4, the display device 10 includes a light source 17, a diffusion lens 19, a substrate 18 on one side of which the light source 17 and the diffusion lens 19 are mounted, a chassis 14 provided on the other side of the substrate 18, and a reflection sheet 22 arranged on one side of the substrate 18 and the chassis 14. The diffusion lens 19 has legs 19a on its bottom surface and is mounted on the substrate 18 by the legs 19a. The reflection sheet 22 is characterized by having a through hole 30 smaller than the diameter of the diffusion lens 19 and an adjacent through hole 31 adjacent to the through hole 30 and larger than the diameter of the diffusion lens 19, and being fixed by the diffusion lens 19.

[0026] That is, the through hole 30 is disposed so as to overlap with the diffusion lens 19. In this way, the diameter of the through hole 30 in the reflection sheet 22 is smaller than that of the diffusion lens 19, and the diameter of the adjacent through hole 31 is larger than that of the diffusion lens 19, so that when the reflection sheet 22 is disposed on the substrate 18, the diffusion lens 19 is inserted into the adjacent through hole 31 and then the reflection sheet 22 is slid, and the leg portion 19a of the diffusion lens 19 engages with the reflection sheet 22 near the through hole 30, so that the reflection sheet 22 can be fixed to the substrate 18 and the chassis 14, and the reflection sheet 22 can be fixed to the substrate 18 and the chassis 14 without using the rivet 21, thereby reducing the number of parts.

[0027] In addition, in the case of a 70-inch television receiver, the rivets 21 usually fix the reflective sheet 22 to the substrate 18 or the chassis 14 at several tens of places, but since 100 to 250 diffusion lenses 19 are usually provided, the reflective sheet 22 can be fixed to the substrate 18 or the chassis 14 by that amount, and the reflective sheet 22 can be prevented from floating up more than when fixed with the rivets 21. By preventing the reflective sheet 22 from floating up, it is also possible to prevent the generation of luminance at the floating portion. In addition, the manufacturing time is shortened by the number of rivets 21 to be attached. Furthermore, the display device 10 does not require a structure for providing the rivets 21 that fix the reflective sheet 22. In addition, the reflective sheet 22 may warp due to the environmental temperature, but since it can be fixed by the number of diffusion lenses 19, warping can be prevented even in such a case.

[0028] Further detailed description will be given below with reference to Figures 5 to 8. Figure 5 is an enlarged cross-sectional view of the periphery of the diffusion lens 19 in Figure 4, showing the reflection sheet 22 provided in the display device 10 according to the first embodiment disposed on the substrate 18 before the reflection sheet 22 is fixed. Also, Figure 6 is a plan view of Figure 5. As shown in Figure 5, the chassis 14 is provided on the other surface side (lower side) of the substrate 18.

[0029] 5 and 6, first, the reflective sheet 22 is set on the substrate 18, and the diffusion lens 19 is inserted into the adjacent through-hole 31 of the reflective sheet 22. The adjacent through-hole 31 has a larger diameter than the diffusion lens 19, so that the diffusion lens 19 can be inserted therethrough.

[0030] After the diffusion lens 19 is inserted into the adjacent through-hole 31, as shown in FIG. 5, the reflection sheet 22 is slid in the direction of the arrow (right side), that is, toward the through-hole 30 side, which is smaller in diameter than the diffusion lens 19, so that the through-hole 30 and the diffusion lens 19 are overlapped. At this time, the diffusion lens 19 has legs 19a on its bottom surface, and the legs 19a have a predetermined height 19t, so that a gap 19s is generated between the end 19b of the diffusion lens 19 and the substrate 18. The reflection sheet 22 is inserted into the gap 19s. At this time, the thickness of the reflection sheet 22 is smaller than the height 19t of the legs 19a of the diffusion lens 19. Generally, the thickness of the reflection sheet 22 is 0.15 to 0.25 mm, and the height 19t of the legs 19a of the diffusion lens 19 is 0.4 to 0.7 mm. The reflection sheet 22 is made of foamed PET or the like, and is flexible.

[0031] 7 and 8 show the result of sliding the reflective sheet 22. In this manner, by sliding the reflective sheet 22 into the through-hole 30, which is smaller in diameter than the diffusion lens 19, the reflective sheet 22 can be fixed by the diffusion lens 19. Note that the sliding amount is less than the diameter of the reflective sheet 22.

[0032] The diffusing lens 19 may be a refractive type having a circular shape in a plan view, or a reflective type having a rectangular shape. When the diffusing lens 19 is circular, the adjacent through hole 31 may be circular. When the diffusing lens 19 is rectangular, the adjacent through hole 31 may be rectangular so that the diffusing lens 19 can be inserted therethrough.

[0033] As shown in Fig. 4, the chassis 14 is preferably provided with positioning parts 50 for fixing the reflective sheet 22. By providing the positioning parts 50, the reflective sheet 22 can be more quickly and easily arranged on the box-shaped chassis 14, the manufacturing time can be shortened, and floating can be reliably prevented. The positioning parts 50 may be protrusions or simple marks. They may be provided on both ends or the four corners of the chassis 14.

[0034] Also, a light reflecting material may be provided between the substrate 18 or chassis 14 and the reflective sheet 22. The light reflecting material is made of the same material as the reflective sheet 22 or a material having a reflectance equivalent to that of the reflective sheet 22. In this way, even if the substrate 18 or chassis 14 is partially exposed due to the adjacent through-holes 31 when the reflective sheet 22 is slid, unevenness can be reliably prevented.

[0035] As a result, not only can the number of parts be reduced, but the above-mentioned effects can also be obtained.

[0036] [Second embodiment] Next, a display device 10 according to a second embodiment will be described. Fig. 9 is an enlarged cross-sectional view of the periphery of a diffusion lens 19, showing a state in which a reflective sheet 22 provided in the display device 10 according to the second embodiment is disposed on a substrate 18 before the reflective sheet 22 is fixed. Fig. 10 is a plan view of Fig. 9.

[0037] 9 and 10, the substrate 18 is characterized in that it has a phosphor 40 disposed on one surface side and directly below the adjacent through-hole 31, the phosphor 40 having a size equivalent to that of the adjacent through-hole 31. The phosphor 40 uses the same material as the reflective sheet 22 or a material having a reflectance equivalent to that of the reflective sheet 22.

[0038] 9 and 10, first, a substrate 18 is prepared on which phosphor 40 having a size equivalent to that of adjacent through-hole 31 is arranged. Then, a reflecting sheet 22 is set on the substrate 18, and a diffusing lens 19 is inserted into the adjacent through-hole 31 of the reflecting sheet 22. The adjacent through-hole 31 has a larger diameter than the diffusing lens 19, so that the diffusing lens 19 can be inserted therethrough. Note that the phosphor 40 on the substrate 18 is arranged in a position such that the phosphor 40 is directly below the adjacent through-hole 31 after the reflecting sheet 22 is slid.

[0039] After inserting the diffusion lens 19 into the adjacent through hole 31, as shown in Figure 9, the reflection sheet 22 is slid in the direction of the arrow (to the right), that is, toward the through hole 30 which has a smaller diameter than the diffusion lens 19, and the reflection sheet 22 is inserted into the gap 19s, so that the through hole 30 and the diffusion lens 19 are overlapped.

[0040] When the reflective sheet 22 is slid, it becomes as shown in Figures 11 and 12. In this way, by sliding the reflective sheet 22 into the through-hole 30 whose diameter is smaller than the diameter of the diffusion lens 19, the reflective sheet 22 can be fixed by the diffusion lens 19. In addition, since the phosphor 40 is arranged on one side and directly below the adjacent through-hole 31 and has a size equivalent to that of the adjacent through-hole 31, it is possible to prevent the substrate 18 or the chassis 14 from being exposed after the reflective sheet 22 is slid into the through-hole 30, and to prevent uneven brightness in the portion where the adjacent through-hole 31 and the substrate 18 or the chassis 14 overlap.

[0041] Moreover, it is preferable that the size of phosphor 40 is larger than that of adjacent through-hole 31. In this way, there is no exposed portion of substrate 18 or chassis 14, so that uneven brightness in the portion where adjacent through-hole 31 and chassis 14 overlap can be further prevented.

[0042] As a result, not only can the number of parts be reduced, but the above-mentioned effects can also be obtained.

[0043] [Third embodiment] Next, a display device 10 according to a third embodiment will be described. Fig. 13 is an enlarged cross-sectional view of the periphery of a diffusion lens 19, showing a state in which a reflective sheet 22 provided in the display device 10 according to the third embodiment is disposed on a substrate 18 before the reflective sheet 22 is fixed. Fig. 14 is a plan view of Fig. 13.

[0044] As shown in Figures 13 and 14, an adhesive layer 45 smaller than the size of the phosphor 40 is provided between the substrate 18 and the phosphor 40, and a reflective sheet 22 is arranged in a gap 45s formed by the adhesive layer 45.

[0045] 13 and 14, first, an adhesive layer 45 smaller than the size of the phosphor 40 is provided between the substrate 18 and the phosphor 40, and a substrate 18 having a phosphor 40 of a size equivalent to that of the adjacent through-hole 31 on the adhesive layer 45 is prepared. At this time, by providing the adhesive layer 45 smaller than the phosphor 40 in a plan view, a gap 45s is formed between the phosphor 40 and the substrate 18. Note that the adhesive layer 45 may be made of an adhesive material such as double-sided tape.

[0046] Then, the reflecting sheet 22 is set on the substrate 18, and the diffusing lens 19 is inserted into the adjacent through-hole 31 of the reflecting sheet 22. The adjacent through-hole 31 has a larger diameter than the diffusing lens 19, so the diffusing lens 19 can be inserted therethrough. The phosphor 40 on the substrate 18 is positioned so that the phosphor 40 is directly below the adjacent through-hole 31 after the reflecting sheet 22 is slid. Moreover, the size of the phosphor 40 is preferably larger than the adjacent through-hole 31.

[0047] After setting the reflective sheet 22 on the substrate 18 as shown in Figures 13 and 14, it is slid in the direction of the arrow (to the right), that is, toward the through hole 30 which is smaller in diameter than the diffusion lens 19, and the reflective sheet 22 is inserted into the gap 19s, as shown in Figures 15 and 16.

[0048] In FIG. 15, the reflective sheet 22 is slid in the direction of the arrow (leftward), that is, to an adjacent through-hole 31 that is larger in diameter than the diffusion lens 19, and the reflective sheet 22 is positioned in the gap 45s between the phosphor 40 and the substrate 18 described above.

[0049] When the reflecting sheet 22 is slid from the state shown in Figures 15 and 16, the result is as shown in Figures 17 and 18. In this way, uneven brightness is prevented in the portion where the adjacent through-hole 31 and the chassis 14 overlap, and since the phosphor 40 is disposed on the reflecting sheet 22, floating in the z direction can also be prevented around the edge of the adjacent through-hole 31 away from the diffusion lens 19, so that floating of the reflecting sheet 22 can be further prevented. Also, since the reflecting sheet 22 is disposed in the gap 45s formed by providing the adhesive layer 45, it is possible to prevent the reflecting sheet 22 from shifting in the x direction.

[0050] [Fourth embodiment] Next, a display device 10 according to a fourth embodiment will be described. Fig. 13 is an enlarged cross-sectional view of the periphery of a diffusion lens 19, showing a state in which a reflection sheet 22 provided in the display device 10 according to the fourth embodiment is disposed on a chassis 14 before the reflection sheet 22 is fixed. Fig. 20 is a plan view of Fig. 19.

[0051] In the display device 10 according to the fourth embodiment, the reflective sheet is disposed on the chassis 14. The chassis 14 is provided on one surface (upper side) of the substrate 18. Furthermore, the legs 19a of the reflecting lens 19 and the light source are mounted on the substrate 18 as in the first to third embodiments. However, in the display device 10 according to the fourth embodiment, as shown in Figs. 19 and 20, a chassis hole 32 is provided directly above the substrate 18 on which the legs 19a of the reflecting lens 19 and the light source 17 are mounted. In the display device and television receiver having such a configuration, the number of components can be reduced and the floating of the reflective sheet 22 can be prevented.

[0052] 21 and 22. By sliding the reflective sheet 22 into the through-hole 30, which has a diameter smaller than that of the diffusing lens 19, the reflective sheet 22 can be fixed by the diffusing lens 19.

[0053] In the fourth embodiment, as in the second and third embodiments, it is also possible to use phosphor 40 disposed on one surface (upper side) of chassis 14 and immediately below adjacent through-hole 31, the phosphor 40 being equal to or larger than the adjacent through-hole 31. It is also possible to provide an adhesive layer 45 smaller than the phosphor 40 between chassis 14 and phosphor 40.

[0054] As a result, not only can the number of parts be reduced, but the above-mentioned effects can also be obtained.

[0055] As described above, according to the present disclosure, it is possible to provide a display device 10 and a television receiver TV with a reduced number of parts. The display device 10 can also be applied to an information display such as an electronic bulletin board.

[0056] Although each embodiment and each example of the present disclosure have been described in detail above, it will be readily apparent to those skilled in the art that many modifications are possible without substantially departing from the novel features and effects of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure.

[0057] For example, a term described at least once in the specification or drawings together with a different term having a broader or similar meaning may be replaced with the different term anywhere in the specification or drawings. In addition, the configurations and operations of the display device and television receiving device are not limited to those described in the embodiments and examples of the present disclosure, and various modifications are possible. [Explanation of symbols]

[0058] 10 display device, 11 liquid crystal panel, 12 backlight device (illumination device), 13 bezel, 14 chassis, 14a bottom plate, 14b side plate, 14c receiving plate, 15 optical member, 15a diffusion plate, 15b optical sheet, 16 holding frame, 17 light source (LED), 18 substrate (LED substrate), 19 diffusion lens, 19a leg (of diffusion lens), 19b end (of diffusion lens), 19s gap (between end of diffusion lens and substrate), 19t height of leg (of diffusion lens), 21 rivet, 22 reflective sheet, 30 through hole, 31 adjacent through hole, 32 chassis hole, 40 phosphor, 45 adhesive layer, 45s gap formed by providing adhesive layer, 50 positioning portion 100 Display device according to the reference example, TV television receiver, Ca, Cb front and back cabinets, P power supply, T tuner, S stand

Claims

1. A light source; a diffusion lens for diffusing light from the light source; a substrate on one side of which the light source and the diffusion lens are mounted; A chassis provided on one or the other surface of the substrate; A reflective sheet disposed on the one surface side of the substrate or the chassis; Equipped with the diffusing lens has legs on a bottom surface and is mounted to the substrate by the legs; the reflection sheet has a through hole smaller than a diameter of the diffusion lens and an adjacent through hole adjacent to the through hole and larger than a diameter of the diffusion lens, and the reflection sheet is fixed at the through hole by the diffusion lens, The display device is characterized in that the substrate or the chassis is arranged on the one surface side and has a phosphor immediately below the adjacent through hole, the phosphor having a size equivalent to that of the adjacent through hole.

2. The display device according to claim 1 , wherein the size of the phosphor is larger than that of the adjacent through-hole.

3. providing an adhesive layer between the substrate or the chassis and the phosphor, the adhesive layer being smaller than the phosphor; 3. The display device according to claim 1, wherein the reflective sheet is disposed in a gap formed by providing the adhesive layer.

4. 4. The display device according to claim 1, wherein the chassis is provided with a positioning portion for fixing a reflective sheet.

5. 5. The display device according to claim 1, further comprising a light reflecting material between the substrate or the chassis and a reflecting sheet.

6. The display device according to any one of claims 1 to 5, further comprising a display panel.

7. A television receiver comprising the display device according to claim 6.

Images