Display device

Abstract

To provide a display that can efficiently cool the heat inside a housing.SOLUTION: A display 1 includes a display panel, a first heating member, a second heating member, a housing 10, a first chassis 20, a second chassis 30, a first exhaust part, and a second exhaust part. The housing 10 has a front face 110 and a rear face 120. The first chassis 20 and the second chassis 30 face each other in the housing 10. The first exhaust part includes a first exhaust port provided in the rear face 120 of the housing and exhausts air in a first internal space layer 1221 between the first chassis 20 and the second chassis 30 from the first exhaust port. The second exhaust part exhausts air in a second internal space layer S2 between the second chassis 30 and the rear face 120 of the housing from a second exhaust port provided in the rear face 120 of the housing. The first internal space layer S1 and the second internal space layer S2 are shielded from each other. The first exhaust part exhausts the air in the first internal space layer S1 from the first exhaust port 1221 through exhaust duct parts 30a, 3701 shielded from the second internal space layer S2.SELECTED DRAWING: Figure 7A

Description

[Technical field]

[0001] The present invention relates to a display device. [Background technology]

[0002] For example, Patent Document 1 discloses a cooling structure for cooling the inside of a display housing. In the display described in Patent Document 1, a first support plate and a second support plate for supporting components such as a circuit board are arranged opposite each other between the rear surface of a display module and the rear surface of the housing. Components such as a circuit board, a plurality of first fans for cooling the inside of the housing, and a second fan for cooling the housing are provided on the surface of the first support plate facing the second support plate. Components such as a circuit board are provided on the surface of the second support plate facing the rear surface of the housing. The plurality of first fans and the second fans are arranged at regular intervals in the longitudinal direction of the first support plate, and the second fan and the plurality of first fans are separated by a partition plate.

[0003] Inside the housing, the space between the first and second support plates (hereinafter referred to as the first space) and the space between the second support plate and the rear surface of the housing (hereinafter referred to as the second space) are not completely partitioned, and are connected to each other on the top and bottom sides of the housing. Also, the first and second support plates are provided with first and second air flow holes at positions corresponding to the first and second fans, respectively.

[0004] An intake hole that connects the inside of the housing to the outside is provided on the bottom surface of the housing, and external air is drawn into the first space through the intake hole on the bottom surface of the housing by driving the first fan. The air drawn into the housing passes between the display module and the first support plate, and flows to the first fan through the first air flow hole of the first support plate. The air flowing out of the first fan passes through the first air flow hole of the second support plate, and is exhausted to the outside through an exhaust hole provided on the rear surface of the housing. In other words, the external air drawn in by the first fan passes from the first space to the second space, and is exhausted to the outside while carrying heat generated by the display module and the components supported by the first support plate and the second support plate.

[0005] An intake hole that connects the second space with the outside is provided on the rear surface of the housing, and the outside air is drawn into the second space from the intake hole on the rear surface of the housing by driving the second fan. The air drawn into the second space flows through the second air flow hole of the second support plate to the second fan, and the air flowing out of the second fan passes through the second air flow hole of the first support plate and is exhausted to the outside from an exhaust hole provided on the top surface of the housing. In other words, the outside air drawn in from the rear surface side of the housing by the second fan passes from the second space to the first space and flows from the top of the housing to the outside. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2017-151218 A Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1, the second fan and the first fans are separated, but the first space and the second space are connected. Also, the air currents from the first fan and the second fan pass through the first space and the second space via the first air flow hole and the second air flow hole, respectively. Therefore, in the cooling structure of Patent Document 1, the air in each space mixes with each other, making it difficult to efficiently cool the inside of the housing.

[0008] An object of the present invention is to provide a display device capable of efficiently cooling heat inside the housing. [Means for solving the problem]

[0009] The display device according to the present invention includes a display panel, a first heat generating member, a second heat generating member, a housing, a first chassis, a second chassis, a first exhaust section, and a second exhaust section. The housing has a front surface on which the display panel is exposed and disposed, and a rear surface opposite to the front surface. The first chassis is disposed within the housing. The second chassis is disposed on the rear surface side of the housing, facing the first chassis. The first exhaust section includes a first exhaust port provided on the rear surface of the housing, and exhausts air in a first internal space layer, which is an internal space formed between the first chassis and the second chassis, from the first exhaust port to the outside. The second exhaust section includes a second exhaust port provided on the rear surface of the housing, and exhausts air in a second internal space layer, which is an internal space formed between the second chassis and the rear surface of the housing, from the second exhaust port to the outside. The first heat generating member is disposed in the first internal space layer. The second heat generating member is disposed in the second internal space layer. The first internal space layer and the second internal space layer are shielded from each other. The first exhaust section includes an exhaust duct section that penetrates the second chassis and is shielded from the second internal space layer, and exhausts air in the first internal space layer from the first exhaust port via the exhaust duct section. Effect of the Invention

[0010] According to the display device, the heat inside the housing can be efficiently cooled. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram showing the appearance of a display device according to a first embodiment. [Diagram 2] FIG. 2 is an exploded view showing a schematic configuration of the display device shown in FIG. [Diagram 3] FIG. 3 is a cross-sectional view showing a schematic cross section taken along line III-III in FIG. [Figure 4] FIG. 4 is a cross-sectional view showing a schematic cross section taken along line IV-IV in FIG. [Figure 5A] FIG. 5A is a schematic diagram showing a fan mounting member in the first embodiment. [Figure 5B] FIG. 5B is a schematic diagram of the fan mounting member shown in FIG. 5A as viewed from the negative Z-axis direction side. [Figure 5C] FIG. 5C is a schematic diagram of the fan mounting member shown in FIG. 5A as viewed from the positive Z-axis direction. [Figure 5D] FIG. 5D is a schematic diagram of the fan mounting member shown in FIG. 5A as viewed from the negative X-axis direction. [Figure 5E] FIG. 5E is a schematic diagram of the fan mounting member shown in FIG. 5A as viewed from the positive direction of the X-axis. [Figure 6] FIG. 6 is a schematic cross-sectional view taken along line VI-VI shown in FIG. [Figure 7A] FIG. 7A is a diagram showing the path of the airflow generated by driving the first fan. [Figure 7B] FIG. 7B is a diagram showing the path of the airflow generated by driving the second fan. [Figure 8] FIG. 8 is a cross-sectional view showing a schematic configuration of a display device according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a display device according to an embodiment will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.

[0013] [First embodiment] Fig. 1 is a schematic diagram showing the appearance of a display device 1 according to a first embodiment. The display device 1 is, for example, an 8K high-resolution display. As shown in Fig. 1, the display device 1 includes a housing 10. The front surface (Y-axis negative direction side) of the housing 10 has an opening 110a that exposes a display region R that displays an image. The rear surface (Y-axis positive direction side) of the housing 10 has air intakes 1211, 1212 and exhausts 1221, 1222.

[0014] Fig. 2 is an exploded view showing a schematic configuration of the display device 1 shown in Fig. 1. Fig. 3 is a cross-sectional view showing a schematic cross section taken along line III-III in Fig. 1. Fig. 4 is a cross-sectional view showing a schematic cross section taken along line IV-IV in Fig. 1. The internal structure of the display device 1 will be specifically described below with reference to Figs. 2 to 4.

[0015] 2 to 4, the display device 1 includes a front housing 110 and a rear housing 120 as the housing 10, a first chassis 20, and a second chassis 30. The first chassis 20 and the second chassis 30 are disposed between the front housing 110 and the rear housing 120. Specifically, the first chassis 20 is provided closer to the front housing 110 than the second chassis 30 is, and the second chassis 30 is provided between the first chassis 20 and the rear housing 120.

[0016] The projected area of ​​the second chassis 30 is smaller than that of the first chassis 20. The rear housing 120 has a first rear part 1201 that covers the first chassis 20 and a second rear part 1202 that covers the second chassis 30. A step is formed between the first rear part 1201 and the second rear part 1202. Due to this step, as shown in FIG. 3, a thickness L2 from the front surface (Y-axis negative direction side) of the front housing 110 to the second rear part 1202 is thicker than a thickness L1 from the front surface (Y-axis negative direction side) of the front housing 110 to the first rear part 1201. At the position of the step in the rear housing 120, the surface of the second chassis 30 on the rear housing 120 side comes into contact with the inner surface of the rear housing 120.

[0017] The display device 1 has a first internal space S1 (an example of a first internal space layer) and a second internal space S2 (an example of a second internal space layer) in the housing 10, and the second chassis 30 is disposed between the first internal space S1 and the second internal space S2. The first internal space S1 is an internal space on the first chassis 20 side, and the second internal space S2 is an internal space on the rear housing 120 side.

[0018] Furthermore, the display device 1 includes, within the housing 10, a display module 210, a display control circuit board 230, an LED (Light-Emitting Diode) drive circuit board 240, a main board 310, an image processing circuit board 320, a power supply unit 330, a plurality of fan installation members 370, a plurality of first fans 350, and a plurality of second fans 360. The display module 210, the display control circuit board 230, the LED drive circuit board 240, the main board 310, the image processing circuit board 320, and the power supply unit 330 are examples of heat-generating members that generate heat.

[0019] The display module 210 , the display control circuit board 230 , the LED driving circuit board 240 , the image processing circuit board 320 , the power supply unit 330 , the multiple first fans 350 , and the multiple second fans 360 are electrically connected to the main board 310 .

[0020] 2, the first chassis 20 supports first heat generating members such as a display module 210, a display control circuit board 230, and an LED drive circuit board 240. As shown in Fig. 3 and Fig. 4, in the first chassis 20, the display module 210 is disposed on the front housing 110 side, and the first heat generating members such as the display control circuit board 230 and the LED drive circuit board 240 are disposed on the rear housing 120 side. The display module 210 is disposed in contact with the front housing 110 such that a display region R of the display module 210 is exposed from an opening 110a of the front housing 110.

[0021] 3 and 4, the display module 210 includes a display panel 211 and a backlight 212. In this embodiment, the display panel 211 is a liquid crystal display panel. The display panel 211 is electrically connected to a display control circuit board 230. The display control circuit board 230 includes a display panel driving circuit such as a driver and a timing controller for driving the display panel 211.

[0022] The backlight 212 is a direct type backlight that radiates light to the entire back surface of the display panel 211. The backlight 212 includes a plurality of LEDs 212a and an LED board 212b that supports the plurality of LEDs 212a. The backlight 212 also includes an optical member (not shown) such as a reflective sheet for making light incident on the display panel 211. The backlight 212 is electrically connected to an LED drive circuit board 240. The LED drive circuit board 240 is electrically connected to the display control circuit board 230, and includes an LED drive circuit (not shown) that turns on or off the plurality of LEDs 212a under the control of the display control circuit board 230.

[0023] 2, the second chassis 30 supports second heat generating components such as a main board 310, an image processing circuit board 320, and a power supply unit 330 on the rear housing 120 side. Also, the second chassis 30 supports two sets of fan mounting members 370 arranged spaced apart from each other on the rear housing 120 side as shown in Fig. 2. The bottom of each fan mounting member 370 is connected to the second chassis 30, and a set of a first fan 350 and a second fan 360 is installed on the upper part of each fan mounting member 370.

[0024] The main board 310 includes a control circuit including a CPU (Central Processing Unit) and memory (ROM (Read Only Memory) and RAM (Random Access Memory)), and a communication interface circuit for communicating with an external device (all not shown). The image processing circuit board 320 includes an image processing circuit (not shown) that adjusts the color and brightness of a display image under the control of the main board 310. The power supply unit 330 is electrically connected to each part of the display device 1 and supplies power to each connected part. Each of the two sets of the first fan 350 and the second fan 360 starts or stops the rotation of the fan under the control of the main board 310. The first fan 350 is used to exhaust air from the first internal space S1, and the second fan 360 is used to exhaust air from the second internal space S2. Hereinafter, the fan installation members arranged on the X-axis positive side and the X-axis negative side of the second chassis 30 may be referred to as fan installation members 370R and 370L.

[0025] 5A to 5E are schematic diagrams showing the structure of fan mounting member 370. FIG. 5A is a schematic diagram showing fan mounting member 370R. FIG. 5B is a schematic diagram showing fan mounting member 370R shown in FIG. 5A as viewed from the negative Z-axis direction. FIG. 5C is a schematic diagram showing fan mounting member 370R shown in FIG. 5A as viewed from the positive Z-axis direction. FIG. 5D is a schematic diagram showing fan mounting member 370R shown in FIG. 5A as viewed from the negative X-axis direction. FIG. 5E is a schematic diagram showing fan mounting member 370R shown in FIG. 5A as viewed from the positive X-axis direction.

[0026] As shown in FIG. 5A to FIG. 5E, the fan mounting member 370R has a first mounting portion 3701 and a second mounting portion 3702. The first mounting portion 3701 has a hollow, substantially rectangular prism shape, and has a hollow area 3701h penetrating in the Y-axis direction. As shown in FIG. 5B to FIG. 5D, the second chassis 30 has an opening 30a penetrating the second chassis 30 at a position facing the first mounting portion 3701. The hollow area 3701h of the first mounting portion 3701 communicates with the first internal space S1 via the opening 30a. The first fan 350 is disposed on the upper surface (Y-axis positive direction side) of the first mounting portion 3701. The first mounting portion 3701 shields the opening 30a from the first fan 350 from the second internal space S2. Therefore, by driving the first fan 350, an airflow is formed that flows from the first internal space S1 through the opening 30a, through the hollow area 3701h of the first installation portion 3701, and toward the bottom of the first fan 350. In other words, the first installation portion 3701 and the opening 30a of the second chassis 30 are an example of an exhaust duct that guides the air in the first internal space S1 to the first fan 350. The first installation portion 3701 and the opening 30a prevent the air in the first internal space S1 from mixing with the air in the second internal space S2.

[0027] As shown in FIG. 5A to FIG. 5E, the second mounting portion 3702 has a substantially rectangular prism shape, and has openings 3702a to 3702e on all faces except the face that is the boundary with the first mounting portion 3701. As shown in FIG. 5B, 5C, and 5E, the opening 3702e on the bottom of the second mounting portion 3702 is blocked by the second chassis 30. That is, the inside 3702h of the second mounting portion 3702 communicates with the second internal space S2, but does not communicate with the first internal space S1. The second fan 360 is disposed on the upper surface of the second mounting portion 3702. Therefore, by driving the second fan 360, an airflow is formed that passes through the openings 3702a to 3702d of the second mounting portion 3702 from the second internal space S2 toward the bottom of the second fan 360.

[0028] Although not shown in the drawings, the fan mounting member 370L has a structure in which the positions of the first mounting portion 3701 and the second mounting portion 3702 of the fan mounting member 370R are reversed.

[0029] FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. 1. As shown in FIG. 2 and FIG. 6, the display device 1 further includes a blocking member 400 and a plurality of wirings 410 in the housing 10. The blocking member 400 is provided on the surface of the second chassis 30 on the rear housing 120 side. The blocking member 400 is made of an insulating material. As shown in FIG. 6, the second chassis 30 has a wiring opening 30b in the area where the blocking member 400 is provided. In the wiring opening 30b, the image processing circuit board 320 (an example of a second heat generating member) and the display control circuit board 230 (an example of a first heat generating member) are connected by the wirings 410. In addition, the main board 310 and the power supply unit 330 (an example of a second heat generating member) are connected by the wirings 410 to the display control circuit board 230 and the LED drive circuit board 240 (an example of a first heat generating member). The blocking member 400 covers the wiring opening 30b through which the wirings 410 are passed. In this manner, in this embodiment, the wiring 410 connecting the first heat generating component arranged on the first chassis 20 and the second heat generating component arranged on the second chassis 30 is concentrated in one location.

[0030] Returning to Figs. 2 to 4, the rear housing 120 is provided with intake ports 1211, 1212 and exhaust ports 1221, 1222. Specifically, the intake port 1211 (an example of a first intake port and a first intake section) is arranged in the first rear section 1201 of the rear housing 120, and the intake port 1212 (an example of a second intake port and a second intake section) and the exhaust ports 1221, 1222 are arranged in the second rear section 1202. The intake port 1211 provides communication between the first internal space S1 and the outside, and external air is taken into the first internal space S1. The intake port 1212 provides communication between the second internal space S2 and the outside, and external air is taken into the second internal space S2.

[0031] 4, the exhaust port 1222 (an example of a first exhaust port) is provided facing the first fan 350, and exhausts air sent out from the first fan 350. Specifically, as shown in FIG. 4, when the first fan 350 is driven, air in the first internal space S1 that has flowed into the first fan 350 through the opening 30a and the hollow region 3701h of the first installation portion 3701 is exhausted from the exhaust port 1221. In other words, the opening 30a, the first installation portion 3701, the first fan 350, and the exhaust port 1221 are an example of a first exhaust portion in this embodiment.

[0032] 3, the exhaust port 1222 (an example of a second exhaust port) is provided facing the second fan 360, and exhausts air sent out from the second fan 360. Specifically, as shown in FIG. 3, by driving the second fan 360, air in the second internal space S2 that has flowed into the second fan 360 through the interior 3702h of the second installation section 3702 is exhausted from the exhaust port 1222. That is, the second installation section 3702, the second fan 360, and the exhaust port 1222 are an example of a second exhaust section in this embodiment.

[0033] In this embodiment, the inside of the housing 10 of the display device 1 is separated by a first chassis 20 and a second chassis 30, and a first internal space S1 and a second internal space S2 are formed on the front side and the back side, respectively, of the housing 10. A first fan 350 for exhausting air from the first internal space S1 and a second fan 360 for exhausting air from the second internal space S2 are provided in the second internal space S2, and the air currents formed by each fan pass through different internal spaces.

[0034] 7A is a diagram showing the path of the airflow generated by driving the first fan 350, and FIG. 7B is a diagram showing the path of the airflow generated by driving the second fan 360. As shown by the arrows in FIG. 7A, the airflow generated by the first fan 350 passes through the first internal space S1 from the intake port 1211, passes through the opening 30a of the second chassis 30 and the hollow area 3701h of the first installation part 3701, flows into the first fan 350, and heads to the outside through the exhaust port 1221. As shown by the arrows in FIG. 7B, the airflow generated by the second fan 360 passes through the second internal space S2 from the intake port 1212, passes through the inside 3702h of the second installation part 3702, flows into the second fan 360, and heads to the outside through the exhaust port 1222. In this way, the air in the first internal space S1 and the second internal space S2 is discharged to the outside separately without mixing with the air in each internal space by driving the first fan 350 and the second fan 360. Therefore, the heat generated by each heat-generating member provided in the first internal space S1 and the second internal space S2 can be efficiently cooled.

[0035] [Second embodiment] In the second embodiment, a structure of a display device in the case where the projected areas of the second chassis 30 and the first chassis 20 are equal will be described. Fig. 8 is a cross-sectional view showing a schematic configuration of a display device 1A in this embodiment. In Fig. 8, the same components as those in the first embodiment are given the same reference numerals as those in the first embodiment. Below, components different from the first embodiment will mainly be described.

[0036] 8, the display device 1A has a front housing 110 and a rear housing 120A as the housing 10. The display device 1A also has a second chassis 30A having approximately the same projected area as the first chassis 20. The second chassis 30A faces the first chassis 20 and is disposed closer to the rear housing 120A than the first chassis 20.

[0037] The rear housing 120A has a substantially flat rear part 1201A facing the second chassis 30A. The rear part 1201A is provided with intake ports 1211, 1212 and an exhaust port 1222. Although not shown in Fig. 7, the rear part 1201A is also provided with an exhaust port 1221 (see Figs. 1 and 2, etc.) adjacent to the exhaust port 1222, as in the first embodiment.

[0038] The second chassis 30A has an intake opening 30c penetrating the second chassis 30A at a position corresponding to the intake port 1211. The display device 1A also has an intake duct 500 between the surface of the second chassis 30A on the rear section 1201A side and the rear housing 120A. The intake opening 30c and the intake duct 500 are an example of a first intake section in this embodiment.

[0039] The intake duct 500 has a hollow cylindrical shape. One end of the intake duct 500 is connected to the intake opening 30c, and the other end is connected to the intake port 1211. That is, the outside communicates with the first internal space S1 via the intake duct 500. Therefore, by driving the first fan 350, the outside air passes through the inside of the intake duct 500 and is sucked into the first internal space S1.

[0040] 8, the airflow formed by the first fan 350 and the airflow formed by the second fan 360 are not generated in the same internal space. Therefore, the air in the first internal space S1 and the second internal space S2 is not mixed with each other and is exhausted to the outside separately, and the heat generated by the heat-generating members provided in the first internal space S1 and the second internal space S2 can be efficiently cooled.

[0041] The above describes the embodiments of the present invention. However, the present invention is not limited to the above embodiments, and can be implemented in various forms without departing from the scope of the present invention. The drawings are mainly schematic illustrations of the respective components for ease of understanding, and the thickness, length, number, etc. of each component shown in the drawings are different from the actual ones due to the convenience of drawing. Furthermore, the shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various modifications are possible within the scope of the present invention without substantially departing from the effects of the present invention.

[0042] (1) The display devices 1 and 1A are not limited to display devices using liquid crystal, and may be display devices using organic EL (Electro Luminescence).

[0043] (2) The positions and numbers of the first fan 350, the second fan 360, the exhaust ports 1221 and 1222, and the intake ports 1211 and 1212 are not limited to those in the embodiment. In the display device, at least one intake port, exhaust port, and fan may be provided for each of the first internal space S1 and the second internal space S2. [Industrial Applicability]

[0044] The present invention can be used in liquid crystal displays and organic EL displays. [Explanation of symbols]

[0045] 1, 1A: Display device 10: Housing 20: First Chassis 30: 2nd chassis 30A: Second chassis 30a: opening 30b: Wiring opening 30c: Intake opening 110: Front case 120, 120A: Rear housing 210: Display module 211: Display panel 212: Backlight 212a: LED 212b: LED board 230: Display control circuit board 240: LED driver circuit board 310: Main board 320: Image processing circuit board 330: Power supply unit 350: 1st Fan 360: Second Fan 370: Fan installation parts 400: Closure member 410: Wiring 500: Intake duct 1201: 1st back part 1201A: Back part 1202:Second back part 1211, 1212: Air intake 1221, 1222: Exhaust port 3701: 1st installation part 3702:Second installation part S1: 1st internal space S2:Second internal space

Claims

1. A display panel; A first heat generating member; A second heat generating member; a housing having a front surface on which the display panel is exposed and a rear surface opposite the front surface; A first chassis disposed within the housing; a second chassis disposed on the rear side of the housing and facing the first chassis; a first exhaust section including a first exhaust port provided on the rear surface of the housing, and configured to exhaust air of a first internal space layer, which is an internal space formed between the first chassis and the second chassis, to the outside through the first exhaust port; a second exhaust section including a second exhaust port provided on the rear surface of the housing, and exhausting air of a second internal space layer, which is an internal space formed between the second chassis and the rear surface of the housing, from the second exhaust port to the outside; Equipped with The first heat generating member is disposed in the first internal space layer, The second heat generating member is disposed in the second internal space layer, The first and second internal space layers are shielded from each other, A display device, wherein the first exhaust section includes an exhaust duct section that penetrates the second chassis and is shielded from the second internal space layer, and air from the first internal space layer is exhausted from the first exhaust port via the exhaust duct section.

2. the first exhaust section includes a first fan that sends air of the first internal space layer through the exhaust duct section to the first exhaust port, The display device according to claim 1 , wherein the second exhaust section includes a second fan that blows air from the second internal space layer to the second exhaust port.

3. a first intake section including a first intake port provided on the rear surface of the housing and configured to draw the outside air from the first intake port into the first internal space layer; a second intake section including a second intake port provided on the rear surface of the housing and configured to draw the outside air from the second intake port into the second internal space layer; The display device according to claim 1 , further comprising:

4. If the areas of the first chassis and the second chassis when viewed along a direction from the front surface to the back surface are respectively the projected area of ​​the first chassis and the projected area of ​​the second chassis, the projection area of ​​the first chassis is larger than the projection area of ​​the second chassis, the rear surface of the housing includes a first rear surface portion that covers a portion of the first chassis that does not overlap with the second chassis, and a second rear surface portion that covers the second chassis; The first air intake is provided in the first rear portion, The display device according to claim 3 , wherein the second air inlet is provided in the second rear portion.

5. The display device according to claim 4 , wherein a thickness between the front surface and the first rear surface portion is smaller than a thickness between the front surface and the second rear surface portion.

6. The display device of claim 3, wherein the first intake section includes an intake duct section that penetrates the second chassis and the second internal space layer and is shielded from the second internal space layer, and draws in the outside air into the first internal space layer through the intake duct section.

7. a wiring that connects the first heat generating member in the first internal space layer and the second heat generating member in the second internal space layer; A blocking member and Further equipped with the second chassis has an opening for wiring; the wiring passes through the wiring opening and connects between the first heat generating member and the second heat generating member; The display device according to claim 1 , wherein the blocking member blocks an area of ​​the wiring opening other than a portion through which the wiring is passed.

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