Display device

Abstract

The purpose of the present disclosure is to provide a display device that efficiently transmits heat from a display panel to a heat dissipating member, and that has excellent heat dissipation performance.　A display device according to the present disclosure is characterized by comprising: a display panel; a heat dissipating member disposed so as to cover a back surface of the display panel; and an adhesive member that is disposed on one portion of the back surface of the display panel and adheres the display panel and the heat dissipating member, wherein the heat dissipating member has a plurality of accommodating parts that protrude in a back surface direction and accommodate the adhesive member, and the back surface of the display panel and the heat dissipating member are in close proximity at sections other than the accommodating parts of the heat dissipating member.

Description

display device

[0001] The present disclosure relates to a display device.

[0002] 2. Description of the Related Art Electronic devices such as display devices have been disclosed in the past.

[0003] For example, Patent Document 1 discloses an image display device in which a back cover 40 is bonded to the rear surface of a display panel 20 via an adhesive sheet 50 in order to prevent quality deterioration due to the transmission of heat sources to the panel.

[0004] International Publication No. 2020-017210

[0005] However, in the image display device of Patent Document 1, the display panel 20 and the back cover 40 are joined via an adhesive sheet 50, and therefore the heat dissipation efficiency of the display panel 20 is reduced compared to when heat is dissipated directly to the back cover 40, which is a metal member.

[0006] In view of the above problems, the present disclosure has an object to provide a display device that efficiently transfers heat from a display panel to a heat dissipation member and has excellent heat dissipation performance.

[0007] The display device according to the present disclosure comprises a display panel, a heat dissipation member arranged to cover the back surface of the display panel, and an adhesive member arranged on a portion of the back surface of the display panel to bond the display panel and the heat dissipation member, wherein a plurality of the adhesive members are arranged on the same plane, the heat dissipation member protrudes toward the back surface and has a plurality of accommodating portions for accommodating the adhesive members, and the back surface of the display panel and the heat dissipation member are close to each other in portions other than the accommodating portions of the heat dissipation member.

[0008] As described above, according to the present disclosure, it is possible to provide a display device that efficiently transfers heat from a display panel to a heat dissipation member and has excellent heat dissipation performance.

[0009] FIG. 1 is a front view schematically illustrating a display device according to the present disclosure. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1. FIG. 3 is a cross-sectional view schematically illustrating a modified example of the display device according to the present disclosure. FIG. 4 is a cross-sectional view schematically illustrating another modified example of the display device according to the present disclosure, illustrating that the accommodation portion is a positioning hole in the heat dissipation member or a hole in the diaphragm member provided in the heat dissipation member. FIG. 5 is an enlarged view of portion V in FIG. 4. FIG. 6 is a view illustrating an embodiment in which the circuit board is arranged in a direction overlapping the adhesive member in the display device according to the present disclosure. FIG. 7 is a front view schematically illustrating another modified example of the display device according to the present disclosure. FIG. 8 is a front view schematically illustrating another modified example of the display device shown in FIG. 7. FIG. 9 is a front view schematically illustrating another modified example of the display device shown in FIG. 8. FIG. 10 is a front view schematically illustrating another modified example of the display device shown in FIG. 9. FIG. 11 is a cross-sectional view taken along line XI-XI of FIG. 10. FIG. 12 is a view illustrating a modified example of the accommodation portion. FIG. 13 is a view illustrating another modified example of the accommodation portion.

[0010] Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present disclosure described in the claims, and not all of the configurations described in the embodiments are necessarily essential to the solutions of the present disclosure. Note that in the drawings, X, Y, and Z are used to make it easier to explain the positional relationship of each configuration.

[0011] The display device 100 according to the present disclosure is a television, a display, etc., and may be a display panel module (OLED module) equipped with an organic EL panel, etc. Each component of the display device 100 will be described below.

[0012] Fig. 1 is a front view schematically showing a display device 100 according to the present disclosure. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. As shown in Figs. 1 and 2, the display device 100 according to the present disclosure includes a display panel 10, a heat dissipation member 20, and an adhesive member 30.

[0013] The display panel 10 is a liquid crystal panel having a rectangular shape in a plan view, and is configured by bonding a pair of glass substrates together with a predetermined gap therebetween, and by sealing liquid crystal between the two glass substrates.

[0014] On one glass substrate, there are provided switching elements (e.g., TFTs) connected to mutually orthogonal source wiring and gate wiring, pixel electrodes connected to the switching elements, and an alignment film, etc., while on the other glass substrate, there are provided color filters in which colored portions such as R (red), G (green), and B (blue) are arranged in a predetermined array, counter electrodes, and an alignment film, etc.

[0015] The heat dissipation member 20 is disposed so as to cover the rear surface (+Y direction) of the display panel 10. The heat dissipation member 20 is made of a material that dissipates heat easily, such as a metal material such as iron, aluminum, or copper.

[0016] The heat dissipation member 20 is an inner plate or a cover member. The display device 100 shown in Fig. 2 includes a display panel 10, a cover member 21, and an adhesive member 30. Meanwhile, a display device further including an inner plate will be described later.

[0017] The cover member 21 is a chassis. The chassis is substantially box-shaped and includes optical members such as LEDs serving as light sources, a reflective sheet, a circuit board 40, and the like.

[0018] The circuit board 40 is disposed in the +Y direction on the rear surface of the display panel 10. The circuit board 40 is a printed circuit board on which electronic components (not shown) such as capacitors, resistors, and diodes are mounted.

[0019] The adhesive member 30 is disposed on a portion of the rear surface of the display panel 10, and bonds the display panel 10 and the heat dissipation member 20. The adhesive member 30 may be, for example, a double-sided tape. The thickness of the adhesive member 30 is approximately 0.7 mm, and is between 0.5 and 1.0 mm.

[0020] A plurality of adhesive members 30 are arranged on the same plane.

[0021] As shown in FIGS. 1 and 2, the heat dissipation member 20 protrudes in the +Y direction, which is the rear surface direction of the display panel 10, and has a housing portion 21a for housing the adhesive member 30 therein.

[0022] The storage portion 21a has a depth that can store the thickness of the adhesive member 30. For example, if the thickness of the adhesive member 30 is 0.7 mm, the depth of the storage portion 21a in the +Y direction is approximately 0.7 mm.

[0023] The housing portion 21a houses the adhesive member 30 by its thickness, and the back surface of the display panel 10 is in contact with the heat dissipation member 20. In other words, the display device 100 according to the present disclosure has no gap between the display panel 10 and the heat dissipation member 20, such as a chassis. The back surface of the display panel 10 is in contact with the heat dissipation member 20 on surfaces other than the surfaces on which the adhesive member 30 and the circuit board 40 are disposed. The back surface of the display panel 10 and the heat dissipation member 20 are in close proximity to each other in a portion of the heat dissipation member 20 other than the housing portion 21a. The back surface of the display panel 10 and the heat dissipation member 20 do not need to be in close proximity to each other in all areas other than the housing portion 21a, as long as at least a portion of the portion other than the housing portion 21a is in close proximity to each other. The range of close proximity is 0.5 mm or less.

[0024] In conventional display devices, an adhesive material is attached to a portion of the back surface of the display panel, and because the chassis and inner plate are flat, when the display panel is attached to the display panel, a gap is created between the display panel and the chassis, etc., which forms an air layer that insulates the heat of the display panel 10, resulting in insufficient heat dissipation.

[0025] Therefore, the display device 100 according to the present disclosure has the accommodating portion 21a in the heat dissipation member 20, and the back surface of the display panel 10 is in contact with the heat dissipation member 20, so that the heat generated by the display panel 10 is directly transferred to the heat dissipation member 20, and the heat of the display panel 10 is efficiently transferred to the heat dissipation member 20, thereby achieving excellent heat dissipation performance. Furthermore, because of the excellent heat dissipation performance, the lifespan of the electronic components provided in the display device 100 can be extended.

[0026] Furthermore, when performing maintenance on the display device, the display panel 10 may need to be separated from the chassis, etc. In other conventional display devices, the adhesive member 30 is attached to almost the entire back surface of the display panel 10, and in such cases, it is difficult to separate the display panel 10 from the chassis, etc., due to the large adhesive area.

[0027] Therefore, in the display device 100 according to the present disclosure, the adhesive member 30 is arranged on a portion of the back surface of the display panel 10, so that the adhesive area is small, the display panel 10 can be easily separated from the chassis, etc., and the display device 10 is easy to maintain.

[0028] The adhesive member 30 may be arranged linearly in the X direction or the Z direction, but is preferably arranged in an island pattern on the back surface of the display panel 10, as shown in Fig. 1. This reduces the contact area between the display panel 10 and the adhesive member 30, making heat dissipation more uniform across the surface of the display panel 10 and reducing temperature variations and variations in display quality. Furthermore, the display panel 10 can be more easily separated from the chassis, etc.

[0029] 3 is a cross-sectional view schematically illustrating a modification of the display device according to the present disclosure. The display device 200 shown in FIG. 3 includes a display panel 10, an inner plate 22 serving as a heat dissipation member 20, and a cover member 21.

[0030] The inner plate 22 is provided between the display panel 10 and the cover member 21. The display device 200 shown in FIG.

[0031] The cover member 21 has a recess 21 b on the surface that contacts the inner plate 22 so as to be able to come into contact with the inner plate 22 , the recess 21 b being adapted to follow the convex shape of the accommodation portion 22 a of the inner plate 22 .

[0032] In this way, the heat of the display panel 10 is efficiently transferred to the inner plate 22 and the cover member 21, which are the heat dissipation member 20, and further excellent heat dissipation performance is achieved.

[0033] Fig. 4 is a cross-sectional view schematically showing another modified example of the display device according to the present disclosure, and is a diagram illustrating that the accommodation portion is a positioning hole 51 of the heat dissipation member 20 or a hole 51 of the diaphragm member 50 provided in the heat dissipation member 20. Fig. 5 is an enlarged view of a portion V in Fig. 4.

[0034] In the display device 300 shown in FIGS. 4 and 5, a positioning member 50 or a diaphragm member 50 is provided on a cover member 21 which is a heat dissipation member 20 .

[0035] The positioning member 50 is a positioning rib that guides the position when attaching the housing 70, which constitutes the outer frame to which the components are attached, to the cover member 21. The diaphragm member 50 is a member that fastens the housing 70 to the cover member 21. The components on the housing 70 side and the heat dissipation member 20 are fastened with screws 60 and screw receivers 61, as shown in FIG.

[0036] 4 and 5, the positioning member 50 or the diaphragm member 50 has a hole 51 formed therein. That is, the hole 51 serves as a housing portion. The adhesive member 30 is housed in the hole 51, and the display panel 10 and the cover member 21 are bonded together by the adhesive member 30.

[0037] The display devices 100 and 200 shown in Figures 1, 2 and 3 are provided with storage sections 21a and 22a in addition to the positioning member 50 and the aperture member 50, but in the display device 300 according to the present disclosure shown in Figures 4 and 5, the holes 51 in the positioning member 50 and the aperture member 50 serve as storage sections.

[0038] This allows the contact area between the display panel 10 and the inner plate 22 or the cover member 21 to be further increased, allowing the heat of the display panel 10 to be efficiently transferred to the heat dissipation member 20, resulting in even better heat dissipation performance.

[0039] In addition, the display device according to the present disclosure may use the positioning member 50 or the hole 51 of the aperture member 50 as a storage portion, and may further be provided with storage portions 21a and 22a like the display devices 100 and 200 shown in Figures 1, 2, and 3.

[0040] 4 and 5, an inner plate may be provided between the display panel 10 and the cover member 21 as in the display device 200 of Fig. 3. In such a case, the accommodation portion is also a hole in the positioning member or a hole in the diaphragm member.

[0041] 6 is a diagram showing an embodiment in which the circuit board 40 is arranged in an overlapping direction with the adhesive member 30 in the display device 400 according to the present disclosure. In the display device 400 according to the present disclosure, the circuit board 40 may be arranged in an overlapping direction with the adhesive member 30 as shown in FIG. 6. In such a case, the circuit board 40 is provided on the rear side of the accommodation portion 22a provided in the inner plate 22. The circuit board 40 may be in contact with the inner plate 22, or may be arranged with a gap between it and the inner plate 22. Furthermore, the circuit board 40 may be in contact with the cover member 21, or may be arranged with a gap between it and the cover member 21.

[0042] FIG. 7 is a front view schematically illustrating another modified example of a display device according to the present disclosure. In the display device 500 shown in FIG. 7 , multiple housing sections 21a are formed at predetermined intervals in a direction (X direction) perpendicular to the short-side direction (Z direction) of the heat dissipation member 20. Multiple adhesive members 30 are also formed at predetermined intervals in a direction (X direction) perpendicular to the short-side direction (Z direction) of the heat dissipation member 20. At least one adhesive member 30 is disposed within the housing section 21a. The predetermined spacing between each of the multiple adhesive members 30 is determined so as to maintain the strength of the display panel 10 and is the spacing between the members bonding the display panel 10 and the heat dissipation member 20. The spacing varies depending on the size of the panel; for example, it is approximately 112 mm to 116 mm for a 55-inch display, approximately 106 mm to 110 mm for a 65-inch display, and approximately 98 mm to 102 mm for a 75-inch or 77-inch display. By varying the predetermined intervals between the adhesive members 30 depending on the size, and by installing the adhesive members 30 at shorter intervals for larger sizes, the proximity between the display panel 10 and the heat dissipation member 20 can be increased, thereby improving heat dissipation efficiency. Furthermore, the accommodating portions 21a are provided at positions that maintain a predetermined interval in the short direction. The predetermined intervals between the accommodating portions 21a need only be such that the adhesive members 30 housed in the accommodating portions 21a are arranged at the predetermined intervals. Even if the adhesive members 30 are not housed in the accommodating portions 21a, the accommodating portions 21a may be provided without the adhesive members 30 in order to increase strength.

[0043] By forming a plurality of adhesive members 30 at predetermined intervals, the display panel 10 and the heat dissipation member 20 can be easily separated, which improves the ease of analyzing defects in the display panel 10 and of recycling it after disposal.

[0044] 7, one adhesive member 30 is accommodated in each accommodation section 21a. Also, in the embodiment shown in Fig. 7, accommodation section 21a is not divided in the longitudinal direction (X direction) but is a single section. Furthermore, accommodation section 21a and adhesive member 30 are provided to extend in the longitudinal direction.

[0045] Figure 8 is a front view schematically showing another modified example of the display device 500 shown in Figure 7. In the display device 600 shown in Figure 8, a plurality of accommodating sections 21a are formed at predetermined intervals in a direction perpendicular to the short-side direction of the heat dissipation member 20, and a plurality of adhesive members 30 are formed in a direction parallel to the long-side direction of the heat dissipation member 20. Therefore, a plurality of adhesive members 30 are formed at predetermined intervals in a direction perpendicular to the short-side direction of the heat dissipation member 20, and a plurality of adhesive members 30 are formed in a direction parallel to the long-side direction of the heat dissipation member 20. The predetermined intervals are as described above. Note that the intervals at which the accommodating sections 21a and the adhesive members 30 are provided are substantially the same in the embodiment shown in Figure 7 and the embodiment shown in Figure 8 described later.

[0046] In the embodiment shown in Fig. 8, one adhesive member 30 is housed in each housing section 21a. Also, in the embodiment shown in Fig. 8, the housing section 21a is divided in the longitudinal direction (X direction). Therefore, multiple housing sections 21a are formed in the longitudinal direction. Compared to the housing section 21a in Fig. 7, the configuration of the housing section 21a shown in Fig. 8 is divided in the longitudinal direction, which allows the strength of the heat dissipation member 20 to be increased. Also, because the adhesive member 30 in the longitudinal direction is shorter, it becomes easier to separate the display panel 10 and the heat dissipation member 20.

[0047] Fig. 9 is a front view schematically illustrating another modified example of the display device shown in Fig. 8. The heat dissipation member 20 includes a plurality of accommodation sections 21a each having a predetermined width, and at least one adhesive member 30 is disposed within each accommodation section 21a. In the embodiment shown in Fig. 9, the length of the accommodation section 21a in the short-side direction (Z direction) is longer than that of the embodiment shown in Fig. 8. Note that, since the strength of the heat dissipation member 20 increases when the flat portions at the end sections are reduced, the flat portions at the end sections are minimized, and the width of the accommodation section 21a in the short-side direction is increased.

[0048] 9, the display device 700 is an embodiment in which the heat dissipation member 20 is a chassis, and the housing portion 21a is provided in the chassis.

[0049] At least one heat dissipation member 20 is provided in each housing section 21 a. Therefore, one or more heat dissipation members 20 are provided in each housing section 21 a. In the display device 700 shown in Fig. 9, there are three housing sections 21 a, each provided with two heat dissipation members 20.

[0050] The adhesive member 30 may be provided so as to extend in the longitudinal direction of the heat dissipation member 20 or in the lateral direction (Z direction) of the heat dissipation member 20 .

[0051] Furthermore, a plurality of adhesive members 30 are formed at predetermined intervals in a direction perpendicular to the short-side direction of the heat dissipation member 20. The intervals at which the accommodation portions 21a and the adhesive members 30 are provided differ between the embodiment shown in FIG. 9 and the embodiment shown in FIG. 10 described later. The embodiment shown in FIG. 9 has a larger number of accommodation portions 21a in the longitudinal direction than the embodiment shown in FIG. 8, which increases the strength of the heat dissipation member 20. Furthermore, the embodiment shown in FIG. 9 has shorter adhesive members 30 in the longitudinal direction than the embodiment shown in FIG. 8, which makes it easier to separate the display panel 10 and the heat dissipation member 20.

[0052] Fig. 10 is a front view schematically showing another modified example of the display device shown in Fig. 9. Fig. 11 is a cross-sectional view taken along line XI-XI in Fig. 10. In the display device 800 shown in Figs. 10 and 11, the heat dissipation member is the chassis. Therefore, the housing portion 21a is provided in the chassis.

[0053] At least one heat dissipation member 20 is provided in each housing portion 21a. Therefore, one or more heat dissipation members 20 are provided in each housing portion 21a.

[0054] The adhesive member 30 may be provided to extend in the longitudinal direction of the heat dissipation member 20, or may be provided to extend in the lateral direction (Z direction) of the heat dissipation member 20. Furthermore, a plurality of adhesive members 30 are formed at predetermined intervals in a direction perpendicular to the lateral direction of the heat dissipation member 20.

[0055] The shape of the storage section 21a is polygonal or circular when viewed from the front, as shown in Fig. 10. Examples of polygonal shapes include triangles, rectangles, pentagons, hexagons, heptagons, and octagons. Examples of circular shapes include perfect circles and ellipses. Other examples of the shape of the storage section 21a include star shapes, moon shapes, and shapes with design features.

[0056] As shown in FIG. 11 , the display device 800 includes a cabinet member 80 on the back surface of the chassis 21. The cabinet member 80 covers the entire lower area of ​​the back surface of the chassis 21. The cabinet member 80 is provided from the middle to the bottom (-Z direction) of the display panel 10 in the vertical direction (Z direction). This is a so-called half cabinet configuration. In the case of a half cabinet, the chassis 21 provided on the back surface of the upper part of the display panel 10 is exposed. Therefore, it is preferable that this portion of the chassis 21 has a design feature. Furthermore, the housing portion 21a on the chassis 80 on the upper side of the cabinet member 80 is formed so that the shape of the housing portion 21a on the chassis 80 on the lower side is different from the shape of the housing portion 21a on the chassis 80 on the upper side. Here, the term "half cabinet" does not mean that only about 1 cm of the chassis 21 on the back of the display panel 10 is exposed, but rather that a certain area of ​​a certain size is exposed, for example, about 1 / 3 to 1 / 2 of the upper part of the chassis 21 in the height direction (Z direction) relative to the entire rear chassis 21. Furthermore, the size of the exposed area on the upper part of the chassis 21 may vary depending on the size of the display panel 10. For example, for a 55-inch display, about 1 / 3 of the entire length of the display panel 10 in the short direction may be exposed; for a 65-inch display, about 1 / 2 of the entire length of the display panel 10 in the short direction may be exposed; and for a 75-inch or 77-inch display, more than 1 / 2 of the entire length of the display panel 10 in the short direction may be exposed. The larger the display panel 10, the larger the area of ​​the exposed region of the half cabinet, because the larger the size of the display panel, the larger the exposed region of the upper part of the chassis 21, which has the effect of making the overall display appear thinner to the user and also improving aesthetics. Also, the larger the size of the display panel, the larger the cabinet member 80 covering the lower part becomes, which increases the cost of the entire product, but by reducing the size of the cabinet member 80, costs can be reduced.

[0057] Although the accommodation portion 21a shown in Figures 6, 7, 8 and 9 is provided in the cover member 21, it may also be provided in the inner plate 22 as shown in Figure 3, or the positioning member 50 or the hole 51 of the diaphragm member 50 may serve as the accommodation portion as shown in Figures 4 and 5.

[0058] As shown in FIG. 11, the end of the housing portion 21a in the +Y direction may be formed at a right angle.

[0059] 12, the accommodation portion 21a may be inclined in the YZ direction. The adhesive member 30 is provided not on the inclined portion of the accommodation portion 21a but on a flat portion that is parallel to the Z direction.

[0060] 13, the adhesive member 30 may be provided at an inclined portion of the housing portion 21a, and may have a shape, for example, a triangular shape, that follows the inclination. In this way, even at the portion of the display panel 10 where the adhesive member 30 is provided, heat from the display panel 10 can be transferred to the cover member 21 and dissipated.

[0061] As described above, the display devices 100, 200, 300, 400, 500, 600, 700, and 800 according to the present disclosure efficiently transfer heat from the display panel 10 to the heat dissipation member 20, and have excellent heat dissipation performance.

[0062] 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.

[0063] For example, a term described at least once in the specification or drawings together with a different term having a broader or similar meaning can be replaced with that different term anywhere in the specification or drawings. Furthermore, the configuration and operation of the display device are not limited to those described in each embodiment and each example of the present disclosure, and various modifications are possible.

Claims

1. A display panel; a heat dissipation member disposed so as to cover the rear surface of the display panel; an adhesive member disposed on a part of the rear surface of the display panel and adhering the display panel and the heat dissipation member; Equipped with the heat dissipation member is made of a material that can easily dissipate heat generated by the display panel, and has a plurality of accommodation portions formed by bottomed holes that protrude toward the rear surface and that accommodate the adhesive member; The display device according to claim 1, wherein the rear surface of the display panel and the heat dissipation member are adjacent to each other in a portion of the heat dissipation member other than the housing portion.

2. A display panel; a heat dissipation member disposed so as to cover the rear surface of the display panel; an adhesive member disposed on a part of the rear surface of the display panel and adhering the display panel and the heat dissipation member; a housing that forms an outer frame; Equipped with the heat dissipation member has a plurality of housing portions that protrude toward the rear surface and that house the adhesive members; the rear surface of the display panel and the heat dissipation member are adjacent to each other in a portion of the heat dissipation member other than the housing portion, A display device characterized in that the accommodating portion is a hole in a positioning member for guiding the position when attaching the heat dissipation member, or a hole in an aperture member provided in the heat dissipation member for fixing the housing and the heat dissipation member.

3. A display panel; a heat dissipation member disposed so as to cover the rear surface of the display panel; an adhesive member disposed on a part of the rear surface of the display panel and adhering the display panel and the heat dissipation member; Equipped with the heat dissipation member has a plurality of housing portions that protrude toward the rear surface and that house the adhesive members; the rear surface of the display panel and the heat dissipation member are adjacent to each other in a portion of the heat dissipation member other than the housing portion, the storage section has an inclined portion inclined with respect to the rear surface direction, The display device, wherein the adhesive member is provided on the inclined portion of the housing portion.

4. 4. The display device according to claim 1, wherein the adhesive member is arranged in an island shape on the rear surface of the display panel.

5. 4. The display device according to claim 1, wherein the accommodating portion is a hole in a positioning member of the heat dissipation member or a hole in a diaphragm member provided on the heat dissipation member.

6. 4. The display device according to claim 1, wherein the heat dissipation member is a metal member.

7. 4. The display device according to claim 1, wherein the heat dissipation member is an inner plate or a cover member.

8. The accommodating portions are formed at predetermined intervals in a direction perpendicular to the short-side direction of the heat dissipation member, 4. The display device according to claim 1, wherein at least one adhesive member is disposed in the housing portion.

9. a plurality of the accommodating portions are formed at predetermined intervals in a direction perpendicular to a short-side direction of the heat dissipation member and in a direction parallel to a longitudinal direction of the heat dissipation member; 4. The display device according to claim 1, wherein at least one adhesive member is disposed in the housing portion.

10. the heat dissipation member includes a plurality of accommodation portions each having a predetermined width; 4. The display device according to claim 1, wherein at least one adhesive member is disposed in the housing portion.

11. 4. The display device according to claim 1, wherein the accommodating portions are provided at positions where a predetermined interval is maintained in the lateral direction.

12. the heat dissipation member is a chassis, a cabinet member provided on the rear surface of the chassis to cover a lower area of ​​the entire rear surface of the chassis; The display device according to any one of claims 1 to 3, characterized in that the shape of the accommodating portion on the chassis on the upper side of the cabinet member is different from the shape of the accommodating portion on the chassis on the lower side.

13. 4. The display device according to claim 1, wherein the shape of the container is polygonal or circular when viewed from the front.