JP5389203B2 - Display device with disk drive, display unit, and television receiver - Google Patents

Description

  The present invention relates to a disk drive-mounted display device such as a television receiver in which a disk drive unit such as an optical disk drive or a hard disk drive is mounted, and in particular, a disk in which the disk drive unit is placed outside a housing on the back side of the display unit. The present invention relates to a drive-mounted display device.

In recent years, display units such as liquid crystal television receivers equipped with a video display panel such as a liquid crystal panel have been increasingly reduced in thickness, and those with a thickness of about several tens of millimeters have become common, and products with a thickness of less than 10 mm are also provided. It's getting on.
Such a thin display unit has a high density of parts in the unit due to the thinning, and generally has poor air permeability. For this reason, in the display unit, the internal temperature may rise to about 70 ° C., and accordingly, the temperature of the back side casing forming the back side exterior may rise to about 60 ° C.

In addition, a disk drive-mounted display device may be configured by mounting a disk drive unit such as an optical disk drive or a hard disk drive on a display unit such as a liquid crystal television receiver. This disk drive unit realizes a recording function for recording content such as a broadcast program on a recording medium such as an optical disk or a hard disk, and a playback function based on the recorded data. The optical disk drive includes a DVD drive using a DVD (Digital Versatile Disc), a Blu-ray disc drive using a Blu-ray disc, and the like.
However, the characteristics of the pickup unit provided in the disk drive unit, which accesses the disk medium and reads / writes signals changes more sensitively to the environmental temperature than other electronic components provided in the display unit. For this reason, as a usage condition of the disk drive unit, for example, the environmental temperature may be required to be 60 ° C. or lower. Here, when the disk drive unit is housed in a thin display unit housing where the internal temperature may reach about 70 ° C., a condition where the use conditions of the disk drive unit are not satisfied is assumed.
Therefore, it is conceivable to place the disk drive unit on the outside of the back side housing of the display unit. As a result, the influence of heat from the display unit to the disk drive unit can be reduced, and the use conditions for the environmental temperature required for the pickup section of the disk drive unit can be satisfied.

By the way, in the disk drive unit, measures such as providing a shield case for absorbing the electromagnetic wave are taken in order to suppress the radiation of the electromagnetic wave generated by the operation to the outside (unwanted electromagnetic wave radiation). For example, in Patent Document 1, unnecessary electromagnetic radiation from the imaging device is suppressed by disposing a conductive member outside the imaging device of the imaging unit.
Here, when the disk drive unit is housed in the display unit, not only is each ground connected by a harness (wiring), but also the disk drive unit shield case is brought into direct contact with the display unit chassis. The impedance between the ground of the drive unit and the display unit can be reduced. For example, Patent Document 2 proposes that a VTR substrate shield case and a CCD substrate shield case are in direct contact with each other in a VTR integrated video camera.
However, in the configuration in which the disk drive unit is arranged outside the rear housing of the display unit as described above, the shield case of the disk drive unit cannot be directly connected to the chassis of the display unit. The unit ground is connected only by the harness.
For this reason, in the configuration in which the disk drive unit is arranged outside the display unit, the ground impedance between the display unit and the disk drive unit is higher than when the disk drive unit is built in the display unit, and unnecessary electromagnetic radiation from the disk drive unit is generated. The suppression effect of is reduced.

JP 2005-12327 A Japanese Patent Laid-Open No. 6-14225

However, in order to comply with strict standards for unwanted electromagnetic radiation not only in Japan but also in the world including the United States, it is desirable to suppress unwanted electromagnetic radiation from the disk drive unit as much as possible.
Therefore, even in a configuration in which the disk drive unit is arranged outside the display unit, a part of the chassis of the display unit is exposed from the rear side housing, and the display unit is brought into direct contact with the exposed chassis. It is conceivable to reduce the ground impedance between the disk drive unit and the disk drive unit.
However, when the chassis of the display unit is brought into direct contact with the disk drive unit, not only the conductivity between the display unit and the disk drive unit but also the thermal conductivity is increased. As a result, the amount of heat transfer from the display unit to the disk drive unit increases, which causes a problem that the disk drive unit may reach a high temperature. That is, in the disk drive-mounted display device, there is a trade-off relationship between the ground impedance between the display unit and the disk drive unit and the amount of heat transferred from the display unit to the disk drive unit. Further, when a part of the chassis is exposed from the display unit, a part of the chassis that reaches a high temperature is exposed when the disk drive unit is removed.
Accordingly, the present invention has been made in view of the above circumstances, and its object is to reduce both the ground impedance between the display unit and the disk drive unit and to suppress the amount of heat transfer from the display unit to the disk drive unit. It is an object of the present invention to provide a disk drive-mounted display device that can achieve the above effects in a well-balanced manner, and a display unit and a television receiver used therefor.

In order to achieve the above object, the present invention comprises a display unit having a video display panel for displaying video and a disk drive unit, and the disk drive unit forms a non-conductive exterior on the back side of the display unit. The present invention is applied to a disk drive-mounted display device that is mounted on the outer side of a back-side casing made of a conductive member. The disk drive-mounted display device according to the present invention includes one or a plurality of conductive elastic members having conductivity and elasticity and limited thermal conductivity. A conductive display unit side grounding member connected between the display unit and the disk drive unit and connected to the ground of the display unit, and a conductive drive side grounding member connected to the ground of the disk drive unit Are electrically connected to each other.
Specifically, the conductive elastic member is formed by coating a non-conductive and elastic core material with a conductive coating member, and has a conductive and elastic property, and has a limited thermal conductivity. It is conceivable that the conductive gasket is made. For example, it is conceivable that the core material is a sponge-like foamable resin and the covering member is a metal fiber. The covering member is made of, for example, a polyester fiber that is plated with metal such as nickel or copper.
In the disk drive-mounted display device according to the present invention, the display unit side grounding member and the drive side grounding member can be connected with appropriate conductivity and thermal conductivity by the conductive elastic member. Both the effects of lowering the ground impedance between the unit and the disk drive unit and suppressing the amount of heat transfer from the display unit to the disk drive unit can be achieved in a balanced manner.
For example, the conductive elastic member is sandwiched between the display unit side grounding member and the drive side grounding member and is elastically deformed to be brought into close contact with the display unit side grounding member and the drive side grounding member. The unit side grounding member and the drive side grounding member are arranged to be electrically connected.

By the way, when a part of the display unit side grounding member is exposed from the back side casing of the display unit, when the display unit is operated with the disk drive unit removed, the exposed unit is exposed. There remains a problem in product safety measures that a part of the display unit side grounding member becomes hot.
Therefore, one or a plurality of openings are formed in the mounting portion of the disk drive unit in the rear housing, and the conductive elastic member is inserted through the opening when the disk drive unit is mounted in the mounting portion. It is desirable to dispose the display unit side grounding member inside the back side housing and the drive side grounding member outside the back side housing in contact with each other. As a result, it is not necessary to expose the display unit side grounding member that reaches a high temperature, and it is possible to eliminate the problem of safety measures.
Here, the conductive elastic member is elastically deformed by being sandwiched between the display unit side grounding member and the drive side grounding member, or sandwiched between the display unit side grounding member and the rear case. It is desirable to close the opening of the rear side housing. Accordingly, it is possible to prevent the temperature of the disk drive unit from rising due to the high-temperature air in the display unit flowing from the opening of the rear housing to the disk drive unit side.
Furthermore, it is desirable that the opening has an inclination and a step so as to expand from the outside to the inside of the back side housing. Thereby, the sealing degree of the said opening by the said electroconductive elastic member can be raised.

By the way, the present invention can also be understood as an invention of a display unit constituting the disk drive-mounted display device. That is, the present invention includes a video display panel for displaying video, and the disk drive unit is placed outside the back side casing made of a non-conductive member that forms the back side exterior of the display unit. A display unit comprising one or a plurality of conductive elastic members having conductivity and elasticity and limited thermal conductivity, wherein the conductive elastic member is interposed between the display unit and the disk drive unit. A conductive display unit side grounding member connected to the ground of the display unit is electrically connected to a conductive drive side grounding member connected to the ground of the disk drive unit. It may be considered as a display unit characterized by this.
The display unit is the same as the above-described disk drive-mounted display device, except that the disk drive unit is not included in the constituent elements. For example, one or a plurality of openings are formed in the mounting portion of the disk drive unit in the back side housing, and the conductive elastic member passes through the opening when the disk drive unit is mounted in the mounting portion. It arrange | positions so that the said display unit side grounding member inside a back side housing | casing and the said drive side grounding member outside the said back side housing | casing may contact.

  According to the present invention, the display unit-side grounding member and the drive-side grounding member can be connected with appropriate conductivity and thermal conductivity by the conductive elastic member, and between the display unit and the disk drive unit. The effects of both lowering the ground impedance and suppressing the amount of heat transfer from the display unit to the disk drive unit can be achieved in a balanced manner.

The perspective view from the back side of the liquid crystal television receiver X which concerns on embodiment of this invention. FIG. 3 is a schematic diagram of a main part of a liquid crystal television receiver X. 4 is a diagram for explaining a mounting structure of a disk drive unit 21 in a liquid crystal television receiver X. FIG. The figure which shows an example of the electric field shielding characteristic of the coating | coated member 31b of the gasket 31 used with the liquid crystal television receiver X. The figure for demonstrating the other example (Example 1) of the attachment structure of the disc drive unit 21 in the liquid crystal television receiver X. FIG. The figure for demonstrating the other example (Example 2) of the attachment structure of the disc drive unit 21 in the liquid crystal television receiver X. FIG. The figure for demonstrating the other example (Example 3) of the attachment structure of the disc drive unit 21 in the liquid crystal television receiver X. FIG. The figure for demonstrating the other example (Example 4) of the attachment structure of the disc drive unit 21 in the liquid crystal television receiver X. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
First, the external appearance of a liquid crystal television receiver X (hereinafter abbreviated as “liquid crystal television X”) according to an embodiment of the present invention will be described with reference to a perspective view shown in FIG. Here, the liquid crystal television X has the same configuration as that of a general liquid crystal television in addition to the configuration described below. However, since there is no particular difference from the conventional configuration, the description thereof is omitted here. The liquid crystal television X is only an example of a disk drive mounted display device according to the present invention, and a liquid crystal monitor or the like mounted with a disk drive unit is an example of the disk drive mounted display device and display unit according to the present invention. is there.

As shown in FIG. 1, the liquid crystal television X has a liquid crystal panel 1 (an example of a video display panel) on the front side for displaying received television broadcast video, video reproduced by a disk drive unit 21 described later, and the like. Is provided. On the other hand, on the back side of the liquid crystal television X, a back side housing 10 made of a non-conductive member (resin or the like) that forms the exterior of the liquid crystal television X is provided. The liquid crystal television X is a thin display device having a thickness (excluding the disk drive unit 21) of about 10 mm to several tens of mm.
In the liquid crystal television X, various electronic components such as a backlight for illuminating the liquid crystal panel 1 from behind and an inverter circuit for supplying power to the backlight are provided. In the thin liquid crystal television X, the density of these components increases, so that the internal temperature easily reaches a high temperature. For this reason, as the internal temperature of the liquid crystal television X increases, the temperature of the rear housing 10 tends to increase. For example, the internal temperature of the liquid crystal television X may rise to about 70 ° C., and the temperature of the rear housing 10 may rise to about 60 ° C.

The liquid crystal television X includes a disk drive unit 21 placed outside the rear housing 10 and a cover member 22 made of a non-conductive member (resin or the like) that covers the disk drive unit 21.
Specifically, in the example shown in FIG. 1, the disk drive unit 21 is disposed from approximately the center to the upper side in the vertical direction of the rear housing 10. The liquid crystal television X before the disc drive unit 21 is mounted corresponds to the display unit according to the present invention.
The disk drive unit 21 is operated by power supply from the liquid crystal television X, and stores information on a disk medium (information recording medium) such as a Blu-ray disc or a DVD that is inserted into and removed from the left in FIG. It is a Blu-ray disc drive or DVD drive that performs playback and playback / recording of information on disc media. The disk drive unit 21 has a pickup unit for accessing the disk medium by irradiating the disk medium with laser light.
As described above, the pickup section of the disk drive unit 21 requires a temperature environment (hereinafter referred to as “in-standard temperature environment”) within the standard for use of the pickup section that is lower than the temperature in the liquid crystal television X as a use condition. . Therefore, the disk drive unit 21 is not housed in the liquid crystal television X, but is placed outside the rear housing 10. Thereby, compared with the case where the disk drive unit 21 is housed in the liquid crystal television X, the influence of heat from the liquid crystal television X to the disk drive unit 21 can be suppressed, and the temperature within the standard of the disk drive unit 21 can be reduced. An environment can be realized.

Here, the exterior of the disk drive unit 21 (an example of a drive-side ground member) is formed of a conductive metal material such as iron or aluminum, and a shield case for absorbing electromagnetic waves from the disk drive unit 21. It also has the function of Hereinafter, the exterior of the disk drive unit 21 is referred to as a drive chassis.
The drive chassis is connected to the ground of the disk drive unit 21, and the ground is connected to an electric circuit of the liquid crystal television X by a harness together with a power line and a signal line.
Thereby, electromagnetic waves generated in the disk drive unit 21 are absorbed by the ground of the liquid crystal television X via the drive chassis and the harness, and unnecessary electromagnetic radiation from the disk drive unit 21 to the outside is suppressed.

However, when the ground impedance of the drive chassis and the harness to the ground of the liquid crystal television X is high, or when electromagnetic noise generated in the disk drive unit 21 is large, sufficient electromagnetic wave radiation from the disk drive unit 21 is sufficiently generated. There is concern that it cannot be suppressed. On the other hand, if the chassis of the liquid crystal television X is exposed from the rear housing 10 and brought into direct contact with the drive chassis, the influence of heat from the liquid crystal television X to the disk drive unit 21 increases, and the disk drive unit 21 There is a risk of disturbing the temperature environment within the specification. Further, exposing the chassis of the liquid crystal television X that reaches a high temperature causes a problem in terms of safety measures.
Therefore, in the liquid crystal television X according to the embodiment of the present invention, in the configuration in which the disk drive unit 21 is placed outside the rear case 10 of the liquid crystal television X, the influence of heat from the liquid crystal television X ( In order to reduce the ground impedance between the liquid crystal television X and the disk drive unit 21 while suppressing the amount of heat transfer), the configuration described below is adopted.

Hereinafter, the mounting structure of the disk drive unit 21 in the liquid crystal television X will be described in detail with reference to FIGS.
2 (a) and 2 (b) are schematic views showing the main part of the liquid crystal television X with the disk drive unit 21 and the rear housing 10 removed, and FIG. 2 (c) is the liquid crystal television X. FIG. 2D is a schematic diagram of a main part of the rear side housing 10, and FIGS. 2E and 2F are diagrams showing the rear side housing 10 on the liquid crystal television X. FIG. It is a principal part schematic diagram which shows the mounted state.
As shown in FIGS. 2A and 2B, when the rear housing 10 and the disk drive unit 21 are removed from the liquid crystal television X, a chassis 11 and a shield case 12 ( An example of the display unit side grounding member is exposed.

The chassis 11 determines the overall structure of the liquid crystal television X, and is formed of a conductive metal material such as iron or aluminum. The chassis 11 is used as a common ground for the entire liquid crystal television X, and is connected to the ground of the electric circuit in the liquid crystal television X.
The shield case 12 is made of a conductive metal material such as iron or aluminum, and is arranged to cover an electric circuit provided in the liquid crystal television X. The shield case 12 is electrically connected to a common ground in the liquid crystal television X by being fixed in contact with the chassis 11. Therefore, in the liquid crystal television X, the electromagnetic wave generated in the electric circuit can be absorbed by the shield case 12, and unnecessary electromagnetic radiation can be suppressed.
Here, the shield case 12 has a conductive gasket 31 (an example of a conductive elastic member) at a position corresponding to each opening 10a (see FIG. 2D), which will be described later, formed in the rear case 10. (Hereinafter abbreviated as “gasket 31”). Here, the case where the five gaskets 31 are provided corresponding to the five openings 10a will be described as an example. However, the present invention is not limited to this, and the openings 10a and the gaskets 31 are one or more appropriate numbers. Good.

As shown in FIG. 2C, each of the gaskets 31 is formed by covering a core member 31a having low conductivity and thermal conductivity with an elastic covering member 31b. Thereby, the gasket 31 has both the elasticity of the elastic member such as sponge and the conductivity of the conductor such as metal. As an example, the overall dimensions of the gasket 31 may be 10 mm in length, 40 mm in width, and 5.5 mm in thickness.
For example, the core material 31a is a sponge-like foamable resin, and the covering member 31b is a metal fiber obtained by performing metal plating with nickel or copper on a polyester fiber. Specifically, the covering member 31b has a surface resistivity of 0.05 [Ω / sq] by applying metal plating with nickel and copper to a polyester woven fabric. It is conceivable that the electric field shielding effect shown in FIG.
As described above, the gasket 31 having the thin heat conductive layer and the conductive layer as a film is made of iron, aluminum, or the like that constitutes the chassis 11 of the liquid crystal television X, the shield case 12, or the drive chassis of the disk drive unit 21. Thermal conductivity is low compared to metal materials. That is, the gasket 31 has conductivity and elasticity, but has limited thermal conductivity.
Further, the end face in the longitudinal direction of the gasket 31 is not covered with the covering member 31b. Therefore, the gasket 31 can be elastically deformed by pressurizing the gasket 31 in the thickness direction.
The gasket 31 may be attached to the shield case 12 by any method that allows the covering member 31b of the gasket 31 and the shield case 12 to be electrically connected. It is conceivable to attach a double-sided tape or a conductive double-sided tape having conductivity to the shield case 12. It is also conceivable to provide a predetermined support member (holder) that supports the gasket 31 while the shield case 12 and the covering member 31b of the gasket 31 are in contact with each other.

Here, the gasket 31 will be described as an example of a conductive elastic member. However, instead of the gasket 31, a conductive rubber or a conductive sponge having conductivity and elasticity and limited thermal conductivity may be used. It can also be used. Some of the conductive rubber and the conductive sponge have the same conductivity as the gasket 31, and the use of the conductive rubber and the conductive sponge is less expensive than the case of using the gasket 31. This is because it may be advantageous.
Here, the conductive rubber is made by mixing a conductive filler (conductive material) such as carbon black, metal powder, and metal fiber with non-conductive and elastic rubber such as fluorine rubber, urethane, and silicone rubber. It is formed by doing. Some of the conductive rubbers have a volume resistivity of about 0.004 [Ω / mm3].
The conductive sponge is formed by mixing a conductive material with a sponge-like foaming resin having non-conductivity and elasticity. For example, the conductive sponge is formed by a method in which a conductive filler (conductive material) is mixed with a rubber such as fluorine rubber, urethane, or silicone rubber, and a thermally decomposable chemical foaming agent is mixed and heated. Is done. Some of the conductive sponges have a volume resistivity of about 0.05 [Ω / mm 3].
The conductive rubber and the conductive sponge formed in this way have a lower thermal conductivity than metal because the basic material is rubber. However, the conductive rubber and the conductive sponge have conductivity because they contain a conductive material. Have. Therefore, the same effect can be obtained even when the conductive rubber and the conductive sponge are used instead of the gasket 31.

On the other hand, as shown in FIG. 2D, a mounting portion 13 for mounting the disk drive unit 21 is formed in the rear case 10. In the present embodiment, the case where the mounting portion 13 is formed in a part of the back side housing 10 will be described as an example. However, the mounting portion 13 is connected to the back side housing 10. It may be removable.
Each of the gaskets 31 attached to the shield case 12 of the liquid crystal television X is inserted into the attachment portion 13 of the rear case 10 when the rear case 10 is attached to the liquid crystal television X. Thus, five openings 10a corresponding to the positions of the gaskets 31 are formed. Here, the inner diameter of the opening 10 a is slightly larger than the outer diameter of the gasket 31.
Further, the thickness of the mounting portion 13 of the back side housing 10 and the thickness of the gasket 31 are such that the gasket from the opening 10a of the mounting portion 13 when the back side housing 10 is mounted on the liquid crystal television X. At least the thickness of the gasket 31 is larger than the thickness of the mounting portion 13 so that a part of 31 protrudes to the outside.
Therefore, in the liquid crystal television X, as shown in FIGS. 2 (e) and 2 (f), when the rear case 10 is attached, the shield case 12 is covered with the rear case 10, so that Although not exposed, the gasket 31 is in a state in which a part of the gasket 31 protrudes to the outside through the opening 10a of the rear housing 10.

Next, the mounting of the disk drive unit 21 to the rear housing 10 will be described with reference to FIG.
Here, FIG. 3A is a schematic diagram of a main part showing a state in which the disk drive unit 21 and the cover member 22 are mounted on the rear case 10. 3 (b) and 3 (c) are sectional views taken along the line AA in FIG. 3 (a), and FIG. 3 (b) shows the disk drive unit 21 and the cover member 22 on the rear surface. FIG. 3C shows a state before the side housing 10 is mounted, and FIG. 3C shows a state after the disk drive unit 21 and the cover member 22 are mounted on the rear side housing 10.
As shown in FIG. 3 (b), the disk drive unit 21 is attached to the cover member 22 by screws 24 and 25 via an attachment fitting 23. That is, the disk drive unit 21 is attached to the cover member 22 before being attached to the rear housing 10, and is integrated with the cover member 22. Specifically, in the example shown in FIG. 3B, the mounting bracket 23 is fixed to the disk drive unit 21 by the screw 24, and the mounting bracket 23 is connected to the cover member 22 by the screw 25. It is fixed to a screw receiving part 22a which is a part.
Here, the disk drive unit 21 comes into contact with the gasket 31 protruding from the mounting portion 13 and elastically deforms the gasket 31 when the disk drive unit 21 is mounted on the rear case 10. The end surface on the back side housing 10 side is fixed to the cover member 22 in a state where it is substantially in the same plane as the end surface on the back side housing 10 side of the cover member 22. Of course, the present invention is not limited to this. For example, if the disk drive unit 21 can be brought into contact with the gasket 31 when the disk drive unit 21 is mounted on the rear housing 10, the end surface of the drive chassis is, for example, the cover. A configuration protruding from the end face of the member 22 or the opposite configuration may be used.

The cover member 22 integrated with the disk drive unit 21 is inserted into the through hole of the thick portion 22 b formed in the cover member 22, and the screw 30 is formed in the mounting portion 13. The back side housing 10 is fixed by being screwed into the screw holes.
When the disk drive unit 21 and the cover member 22 are thus attached to the rear case 10 of the liquid crystal television X, the space between the liquid crystal television X and the disk drive unit 21 is shown in FIG. The gasket 31 intervening in contact with the shield case 12 inside the front rear housing 10 and the drive chassis outside the rear housing 10 through the opening 10a. At this time, the gasket 31 is sandwiched between the drive chassis of the disk drive unit 21 and the shield case 12 of the liquid crystal television X and is elastically deformed, thereby closely contacting the drive chassis and the shield case 12. As a result, the shield case 12 and the drive chassis are electrically connected via the gasket 31, that is, the grounds of the liquid crystal television X and the disk drive unit 21 are electrically connected by the gasket 31. Will be.

As described above, in the liquid crystal television X, since the drive chassis and the shield case 12 are electrically connected via the gasket 31, each of the disk drive unit 21 and the liquid crystal television X can be connected only by the harness. Compared with the case where a ground is connected, the ground impedance between the disk drive unit 21 and the liquid crystal television X can be reduced, and unnecessary electromagnetic radiation from the disk drive unit 21 can be effectively suppressed.
Further, since the thermal conductivity of the gasket 31 is lower than that of the drive chassis of the disk drive unit 21 and the shield case 12 of the liquid crystal television X, the liquid crystal television X is more effective than the disk case. The influence (heat transfer amount) of the heat on the drive unit 21 can be suppressed, and it is also possible to ensure a temperature environment within the standard that is a use condition of the disk drive unit 21.
Furthermore, it is not necessary to project a part of the shield case 12 of the liquid crystal television X having high thermal conductivity and high temperature, and it is only necessary to expose only the gasket 31 having low thermal conductivity. Therefore, even when the liquid crystal television X is operated with the disk drive unit 21 removed, it is possible to avoid the risk of burns and the like to the user or serviceman, which is preferable from the viewpoint of safety measures. It is.

In the first embodiment, a structure for preventing the flow of high-temperature air from the liquid crystal television X to the disk drive unit 21 will be described. FIG. 5 is a diagram for explaining the mounting structure of the disk drive unit 21 in the liquid crystal television receiver X according to the second embodiment. In the following Examples 1 to 4, the same components as those described in the above embodiment with reference to FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.
As shown in FIG. 5A, when the disk drive unit 21 is mounted on the mounting portion 13 of the rear case 10 of the liquid crystal television X, the opening 10a formed in the mounting portion 13 is formed by the gasket 31. When the gap is formed in the opening 10 a without being closed by the liquid crystal, high-temperature air flows from the liquid crystal television X toward the disk drive unit 21. In this case, the effect of suppressing the influence of heat from the liquid crystal television X to the disk drive unit 21 becomes low.
Therefore, as shown in FIGS. 5B and 5C, the gasket 31 is elastically deformed by being sandwiched between the disk drive unit 21 and the shield case 12 of the liquid crystal television X so as to close the opening 10a. It is desirable to have a sufficient thickness.
As a result, when the disk drive unit 21 is mounted on the mounting portion 13 of the rear housing 10, the opening 10 a is closed by the elastic deformation of the gasket 31, so that the liquid crystal television X shifts to the disk drive unit 21. High temperature air flow can be prevented. Therefore, the influence of heat from the liquid crystal television X to the disk drive unit 21 can be more effectively suppressed.

In the second embodiment, another example of a structure for elastically deforming the gasket 31 to close the opening 10a will be described. FIG. 6 is a diagram for explaining the mounting structure of the disk drive unit 21 in the liquid crystal television receiver X according to the third embodiment.
As shown in FIG. 6A, in the mounting structure according to the third embodiment, the inner diameter of the opening 10 a formed in the mounting portion 13 of the back side housing 10 is smaller than the outer diameter of the gasket 31.
Accordingly, when the rear housing 10 is mounted on the liquid crystal television X, the gasket 31 is connected to the edge of the opening 10a of the mounting portion 13 and the shield case 12, as shown in FIG. By being sandwiched between the two, it is elastically deformed, and a part thereof protrudes to the outside through the opening 10a.
A part of the gasket 31 protruding from the opening 10a of the back side housing 10 comes into contact with the drive chassis of the disk drive 21 when the disk drive unit 21 is mounted on the back side housing 10. The drive chassis and the shield case 12 of the liquid crystal television X are electrically connected. Even in such a configuration, the ground impedance between the disk drive unit 21 and the liquid crystal television X can be reduced.
Further, in this configuration, the gasket 31 is sandwiched between the edge portion of the opening 10a of the mounting portion 13 and the shield case 12 and elastically deforms to close the opening 10a. A high-temperature air flow from the liquid crystal television X to the disk drive unit 21 can be prevented, and the influence of heat from the liquid crystal television X to the disk drive unit 21 can be effectively suppressed.

In the third embodiment, a modified example of the structure according to the first embodiment and the second embodiment will be described.
In the structure in which the gasket 31 is elastically deformed and the opening 10a of the mounting portion 13 is closed as in the first and second embodiments, as shown in FIG. 7 (a) or FIG. 7 (c), It is desirable that the opening 10a has a slope 10b or a step 10c so as to expand from the outside to the inside of the back side housing 10. That is, the opening 10 a of the back side housing 10 is formed so as to gradually expand toward the inside of the back side housing 10. Of course, the step 10c may be a multi-step.
Thereby, as shown in FIG. 7B or FIG. 7D, the back side case 10 and the disk drive unit 21 are mounted on the liquid crystal television X, and the gasket 31 is connected to the back side case 10. When it is sandwiched between the shield case 12 and elastically deforms to close the opening 10a, the contact area between the gasket 31 and the inner surface of the opening 10a is increased. Therefore, the degree of sealing of the opening 10a can be increased, and high temperature air leakage from the liquid crystal television X can be prevented more reliably.
In particular, in the structure of the third embodiment, since the opening 10a has the slope 10b or the step 10c, the gasket 31 is elastically deformed along the slope 10b or the step 10c. There is an effect that the portion easily protrudes outward from the opening 10a.

In the fourth embodiment, a mounting structure for more effectively suppressing the influence of heat from the liquid crystal television X to the disk drive unit 21 will be described.
FIG. 8 is a schematic cross-sectional view for explaining another example of the mounting structure of the disk drive unit 21 in the liquid crystal television receiver X. FIG. 8A shows the disk drive unit 21 and the cover member 22 on the back. FIG. 8B shows a state before the side housing 10 is mounted, and FIG. 8B shows a state after the disk drive unit 21 and the cover member 22 are mounted on the rear side housing 10. FIG. 8C shows an example of the relationship of overlap between the heat-insulating recess 13a and the disk drive unit 21 when the back-side housing 10 is viewed from the back side.

As shown in FIG. 8A, the mounting portion 13 of the rear case 10 according to the first embodiment is formed with a heat-insulating recess 13 a on the surface facing the disk drive unit 21. As a result, when the disk drive unit 21 is attached to the mounting portion 13 of the rear housing 10, the disk drive unit 21 and the rear housing 10 are mounted on the mounting portion 13 as shown in FIG. The heat-insulating recess 13a is hermetically sealed by coming into contact with the portion raised by one step from the heat-insulating recess 13a.
Specifically, in the example shown in FIG. 8C, the area of the heat-insulating recess 13 a is about 3/4 of the area of the surface of the disk drive unit 21 facing the mounting portion 13 of the rear housing 10. Occupies an area of That is, only the remaining ¼ portion of the facing surface of the disk drive unit 21 is in contact with the portion around the heat-insulating recess 13 a in the mounting portion 13 of the back side housing 10. As a result, the sealed depression 13a for heat insulation is filled with air, for example. It is also conceivable that the heat-insulating recess 13a is filled with a substance having a lower thermal conductivity than air.

According to the mounting structure according to the first embodiment configured as described above, the region of the heat-insulating recess 13 a sealed by the disk drive unit 21 is located between the rear housing 10 and the disk drive unit 21. Therefore, heat transfer from the high-temperature liquid crystal television X to the disk drive unit 21 is significantly blocked.
Further, as shown in FIG. 8A, the gasket 31 is used as the gasket 31 so that the disk drive unit 21 comes into contact with the gasket 31 when the disk drive unit 21 is mounted on the liquid crystal television X. What has sufficient thickness that a part protrudes outside rather than the part around the said hollow 13a in the said mounting part 13 is employ | adopted. As a result, when the disdrive 21 is mounted on the liquid crystal television X, the disdrive 21 comes into contact with the gasket 31, so that the ground impedance between the disdrive 21 and the liquid crystal television X is reduced. The effect of making it maintain is also maintained.

  The present invention can be applied to a display device mounted with a disk drive such as a liquid crystal television receiver.

X: Liquid crystal television receiver 1: Liquid crystal panel 10: Back side housing 10a: Opening 10b: Inclination 10c: Step 11: Chassis 12: Shield case 13: Mounting portion 13a: Insulation recess 21: Disk drive 22: Cover Member 22a: Screw receiving portion 22b: Thick portion 23: Mounting bracket 24, 25, 30: Screw 31: Conductive gasket 31a: Core material 31b: Cover member

Claims (6)

An image display panel for displaying an image, a conductive display unit-side ground member, a display unit having a non-conductive casing that covers the display unit-side ground member, and a disk drive unit having a conductive drive-side ground member In a disk drive-mounted display device in which the disk drive unit is mounted on the housing,
Having one or a plurality of conductive elastic members having conductivity and elasticity, and having a thermal conductivity lower than that of a metal material;
The portion of the housing that faces the disk drive unit has a recess that does not contact the disk drive unit,
One or a plurality of openings are formed in a portion where the hollow of the housing is present,
The drive-side grounding member is exposed at a portion of the disk drive unit that faces the housing.
The disk drive mounted display device, wherein the conductive elastic member is disposed at the position of the opening, and is sandwiched between the display unit side grounding member and the drive side grounding member through the opening. The disk drive mounting according to claim 1, wherein the conductive elastic member closes the opening by being elastically deformed by being sandwiched between the display unit side grounding member and the drive side grounding member. Type display device. The area of the recess is smaller than the area of the portion of the disk drive unit facing the housing,
The disk drive-mounted display device according to claim 1, wherein a peripheral portion of the recess in the housing is in contact with the disk drive unit. In a display unit comprising an image display panel for displaying an image, a conductive grounding member, and a non-conductive casing covering the grounding member,
Having one or a plurality of conductive elastic members having conductivity and elasticity and having lower thermal conductivity than metal;
The housing has a recess,
One or a plurality of openings are formed in a portion where the hollow of the housing is present,
The display unit, wherein the conductive elastic member is disposed at a position of the opening, contacts the grounding member, and partially protrudes from the opening. The display unit according to claim 4 , wherein the conductive elastic member is sized so as to close the opening by elastic deformation when pressed from the outside. A disk drive-mounted display device according to any one of claims 1 to 3 ,
A television receiver comprising: means for receiving a television broadcast.