JP2022087493A - Displace device - Google Patents

Abstract

To provide a display device with which it is possible to suppress a positional misalignment between a boss and the open hole of a cabinet.SOLUTION: The display device comprises a display panel, a chassis, and a cabinet 4. The display panel displays an image. The chassis supports the display panel. The cabinet 4 covers the chassis from the side opposite the display panel. The chassis includes a boss 34 provided so as to project toward the cabinet. The cabinet 4 has formed therein an open hole 42 through which the boss 34 is inserted. A plurality of ribs 43 are formed on the inner surface of the open hole 42.SELECTED DRAWING: Figure 6

Description

The present invention relates to a display device.

Conventionally, a display device including a display module and a rear cabinet has been disclosed (see, for example, Patent Document 1). The display module has a display screen portion on which an image is displayed. The rear cabinet is attached to the display module so as to cover the rear side of the display module.

JP-A-2015-138105

The display device may include a boss to which a screw for attaching a wall mount, an arm stand, or the like is connected. The boss is provided so as to be exposed rearward from the through hole formed in the cabinet.

In the display device, it has been desired to suppress the positional deviation between the boss and the through hole of the cabinet.

An object of the present disclosure is to provide a display device capable of suppressing a misalignment between a boss and a through hole in a cabinet.

The display device according to one embodiment includes a display panel, a chassis, and a cabinet. The display panel displays an image. The chassis supports the display panel. The cabinet covers the chassis from the side opposite to the display panel. The chassis has a boss provided so as to project toward the cabinet. The cabinet is formed with a through hole through which the boss is passed. A plurality of ribs are formed on the inner peripheral surface of the through hole.

FIG. 1 is a perspective view of a display device according to an embodiment. FIG. 2 is an exploded perspective view of the same display device. FIG. 3 is an enlarged perspective view of the chassis in the same display device. FIG. 4 is a rear view of the same display device. FIG. 5 is an enlarged rear view of the same display device. FIG. 6 is a cross-sectional view taken along the line AA of FIG. FIG. 7 is an enlarged cross-sectional view of the display device according to the first modification. FIG. 8 is an enlarged cross-sectional view of the display device according to the second modification. FIG. 9 is an enlarged cross-sectional view of the display device according to the third modification. FIG. 10 is an enlarged rear view of the display device according to the fourth modification. FIG. 11 is an enlarged rear view of the display device according to the fifth modification. FIG. 12 is an enlarged rear view of the display device according to the sixth modification.

Hereinafter, an example of a preferred embodiment of the present invention will be described. However, the following embodiments are merely examples. The present invention is not limited to the following embodiments.

The display device 1 of the present embodiment will be described with reference to FIGS. 1 to 6.

As shown in FIGS. 1 and 2, the display device 1 of the present embodiment is a display device for displaying an image, and includes a display panel 2, a chassis 3, and a cabinet 4. In the present embodiment, the display device 1 includes a receiving circuit for receiving a television broadcasting signal from an antenna, a display circuit for displaying an image based on the received television broadcasting signal, and the like, and also functions as a television receiving device.

The display panel 2 is, for example, a liquid crystal panel, and is formed in a rectangular plate shape. The display panel 2 displays images such as still images and moving images (moving images) with the front surface as the display surface. In the following description, as shown in FIG. 1, the thickness direction of the display panel 2 is defined as the front-rear direction, the lateral direction of the display panel 2 is defined as the vertical direction, and the longitudinal direction of the display panel 2 is defined as the horizontal direction. However, these directions are defined for convenience for the sake of explanation, and are not intended to limit the directions at the time of use.

The chassis 3 is provided behind the display panel 2 and supports the display panel 2 from the rear. The chassis 3 has a main body portion 31 made of a metal plate, and substantially completely covers the rear of the display panel 2. Further, the chassis 3 further supports a receiving circuit for receiving a television broadcast signal from an antenna, a display circuit for displaying an image based on the television broadcast signal on the liquid crystal panel, a light source unit for irradiating the liquid crystal panel with light, and the like. ..

The cabinet 4 is provided so as to cover the chassis 3 from the side (rear side) opposite to the display panel 2. The cabinet 4 is made of, for example, a synthetic resin, and has a back plate portion 41 facing the rear surface 311 of the main body portion 31 of the chassis 3 in the front-rear direction. In the cabinet 4, the back plate portion 41 faces the entire surface of the rear surface 311 of the main body portion 31, and covers the chassis 3 so as not to be exposed. The cabinet 4 is attached to the chassis 3 with screws or the like.

Further, as shown in FIG. 1, the display device 1 of the present embodiment is provided with a stationary stand 5. The stationary stand 5 is fixed to the chassis 3 of the display device 1. The stationary stand 5 is installed on, for example, a TV stand, and supports the display device 1 at a position away from the TV stand. In addition, in FIGS. 2 and 4, the description of the stationary stand 5 is omitted.

Further, the installation means of the display device 1 is not limited to the stationary stand 5. Instead of the stationary stand 5, the display device 1 is configured to be able to attach fixing members such as an arm stand, a wall-mounted fixture, and a ceiling-mounted fixture as an installation means. Specifically, the display device 1 is configured so that a fixing member can be attached by screwing. As shown in FIG. 2, the display device 1 includes a plurality of (four in this embodiment) bosses 34 to which screws are coupled.

The four bosses 34 are provided on the chassis 3. In other words, the chassis 3 has four bosses 34. The four bosses 34 are arranged apart from each other in the vertical direction and the horizontal direction. The four bosses 34 are arranged so that the vertical and horizontal spacings meet, for example, the VESA (Video Electronics Standards Association) standard.

Each boss 34 is fixed to the main body 31 of the chassis 3 via the support base 32 and the mounting base 33 (see FIGS. 2 and 3).

The chassis 3 has two support bases 32 and four mounting bases 33. The two support bases 32 are fixed to the main body 31 apart from each other in the left-right direction. Each support base 32 is made of a bent metal plate and has a support plate portion 321. The support plate portion 321 is formed in a rectangular plate shape having a thickness direction in the front-rear direction and a longitudinal direction in the vertical direction. The support base 32 is configured such that the support plate portion 321 faces the rear surface 311 of the main body portion 31 in the front-rear direction. Two mounting bases 33 are provided on the rear surface of the support plate portion 321 apart from each other in the vertical direction.

Each mounting base 33 is formed of a bent metal plate, and has a mounting plate portion 331. The mounting plate portion 331 is formed in a rectangular plate shape having a thickness direction in the front-rear direction and a longitudinal direction in the vertical direction. The mounting base 33 is configured such that the mounting plate portion 331 faces the rear surface of the support plate portion 321 in the front-rear direction away from each other.

The boss 34 is provided on the rear surface of the mounting plate portion 331 of the mounting base 33. Therefore, the boss 34 is arranged at a position rearward from the rear surface of the main body 31 of the chassis 3 by the support base 32 and the mounting base 33. The boss 34 is formed in a cylindrical shape with the front-rear direction as the axial direction, and is provided so as to project rearward from the rear surface of the mounting plate portion 331. That is, the boss 34 is provided so as to project toward the cabinet 4. The boss 34 is formed with a screw hole 341 penetrating in the front-rear direction, and a screw groove is formed on the inner peripheral surface of the screw hole 341. The screw holes 341 of the boss 34 are exposed rearward through the through holes 42 formed in the back plate portion 41 of the cabinet 4 (see FIGS. 4 to 6). In this embodiment, the boss 34 is passed through the through hole 42. The boss 34 is provided so that the position of the rear end portion of the boss 34 and the position of the rear surface 411 of the back plate portion 41 of the cabinet 4 substantially coincide with each other in the front-rear direction. A screw for fixing the fixing member to the display device 1 is attached to the boss 34 from the rear.

The through hole 42 is formed so as to penetrate the back plate portion 41 in the front-rear direction. The through hole 42 has a circular opening shape. The diameter of the through hole 42 is larger than the diameter of the boss 34. Therefore, a gap is formed between the inner peripheral surface 421 of the through hole 42 and the outer peripheral surface 342 of the boss 34. When the boss 34 and the through hole 42 are concentric, the dimension of the gap between the inner peripheral surface 421 of the through hole 42 and the outer peripheral surface 342 of the boss 34 is defined as the first dimension L1 (see FIG. 6).

A protrusion 44 is formed on the peripheral edge of the through hole 42 in the front surface 412 of the back plate portion 41 so as to project forward. The protrusion 44 is formed in a cylindrical shape and is formed so as to be concentric with the through hole 42. The diameter of the protrusion 44 is larger than the diameter of the through hole 42. A plurality of reinforcing portions 45 are formed inside the protruding portions 44. Each reinforcing portion 45 is formed in the shape of a triangular plate, and is provided so as to connect the inner peripheral surface of the protruding portion 44 and the front surface 412 of the back plate portion 41.

Further, as shown in FIG. 5, a plurality of (four in this embodiment) ribs 43 are formed on the inner peripheral surface 421 of the through hole 42. The four ribs 43 are formed so as to be separated by approximately 90 degrees in the circumferential direction of the inner peripheral surface 421 of the through hole 42. In the present embodiment, the four ribs 43 are formed at the upper end portion, the lower end portion, the left end portion, and the right end portion of the inner peripheral surface 421 of the through hole 42, respectively. When distinguishing the four ribs 43, the ribs 43 formed on the upper end, the lower end, the left end, and the right end of the inner peripheral surface 421 are the upper rib 43A, the lower rib 43B, the left rib 43C, and the right rib, respectively. It's called 43D.

The rib 43 is formed at the front end portion of the inner peripheral surface 421 of the through hole 42. The rib 43 is formed so as to project from the inner peripheral surface 421 of the through hole 42 toward the center of the through hole 42, that is, the outer peripheral surface 342 of the boss 34. The rib 43 is in contact with the outer peripheral surface 342 of the boss 34. That is, the rib 43 has the same protrusion dimension from the inner peripheral surface 421 of the through hole 42 as the dimension of the gap between the inner peripheral surface 421 of the through hole 42 and the outer peripheral surface 342 of the boss 34, and is the first dimension L1. Is.

The rib 43 has a front-rear dimension shorter than the front-rear dimension of the through hole 42, and is formed at the front end portion of the inner peripheral surface 421 of the through hole 42. That is, the rib 43 is formed so as to be separated from the rear end portion of the inner peripheral surface 421 of the through hole 42. In the present embodiment, a parting line, which is a joint portion of the manufacturing mold of the cabinet 4, is formed at the rear end portion of the rib 43. The dimension between the rear end portion of the rib 43 and the rear end portion of the inner peripheral surface 421 of the through hole 42 is defined as the second dimension L2 (see FIG. 6). In the present embodiment, the rib 43 is formed so that the second dimension L2 is longer than the first dimension L1 which is the protruding dimension of the rib 43.

Further, the rib 43 has an inclined surface 431. The inclined surface 431 is formed on the surface of the rib 43 facing the outer peripheral surface 342 of the boss 34. The inclined surface 431 is formed so as to approach the boss 34 toward the outside of the cabinet 4, that is, toward the rear. That is, the rib 43 is formed so that the protrusion dimension from the inner peripheral surface 421 increases from the front to the rear.

As described above, in the display device 1 of the present embodiment, a plurality of ribs 43 are formed on the inner peripheral surface 421 of the through hole 42 through which the boss 34 in the cabinet 4 is passed. Since the gap between the plurality of ribs 43 and the outer peripheral surface 342 of the boss 34 is smaller than the gap between the inner peripheral surface 421 of the through hole 42 and the outer peripheral surface 342 of the boss 34, the gap is smaller than the case where the plurality of ribs 43 are not provided. Therefore, the position of the boss 34 in the through hole 42 can be restricted. As a result, the misalignment between the boss 34 and the through hole 42 of the cabinet 4 can be suppressed. Therefore, it is possible to prevent the distance between the plurality of bosses 34 from deviating from the dimensions defined by the VESA standard.

Further, in the present embodiment, the plurality of ribs 43 are in contact with the outer peripheral surface 342 of the boss 34. As a result, the position of the boss 34 in the through hole 42 can be further restricted, so that the positional deviation between the boss 34 and the through hole 42 of the cabinet 4 can be further suppressed. The protruding dimension of the rib 43 may be slightly larger than the gap between the inner peripheral surface 421 of the through hole 42 and the outer peripheral surface 342 of the boss 34. In this case, the boss 34 is press-fitted into the through hole 42, so that the plurality of ribs 43 come into contact with the outer peripheral surface 342 of the boss 34.

In the display device 1, the contact between the plurality of ribs 43 and the outer peripheral surface 342 of the boss 34 is not an essential configuration, and a gap is formed between the plurality of ribs 43 and the outer peripheral surface 342 of the boss 34. May be good.

Further, in the present embodiment, the rib 43 has a first dimension L2 between the rear end portion of the rib 43 and the rear end portion of the inner peripheral surface 421 of the through hole 42, which is the protruding dimension of the rib 43. It is formed so as to be longer than the dimension L1. As a result, the rib 43 becomes less noticeable on the appearance of the display device 1, and deterioration of the design can be suppressed.

In the display device 1, the configuration in which the second dimension L2 is longer than the first dimension L1 is not an essential configuration. As in the first modification shown in FIG. 7, the rib 43 may be formed so that the second dimension L2 is shorter than the first dimension L1. In the example shown in FIG. 7, the rib 43 is formed so that the dimension in the front-rear direction is longer than half the dimension in the front-rear direction of the inner peripheral surface 421 of the through hole 42. The rib 43 has a second dimension L2 between the rear end portion of the rib 43 and the rear end portion of the inner peripheral surface 421 of the through hole 42, which is longer than the first dimension L1 which is the protruding dimension of the rib 43. Thereby, in this modification, the strength of the rib 43 can be improved.

Further, in the present embodiment, the rib 43 has an inclined surface 431 formed so as to approach the boss 34 toward the outside (rear) of the cabinet 4. As a result, the boss 34 can be inserted into the through hole 42 along the inclined surface 431 of the rib 43. Therefore, when the cabinet 4 is attached to the chassis 3, the boss 34 is prevented from being caught by the rib 43, and the assembling property can be improved. Further, as in the second modification shown in FIG. 8, the rib 43 may be formed so as to be continuous with the reinforcing portion 45 formed on the front surface 412 of the back plate portion 41 in the cabinet 4. In this modification, since the inclined surface 431 of the rib 43 and the inclined surface of the reinforcing portion 45 can be made continuous, it is suppressed that the boss 34 is caught in the peripheral edge portion of the through hole 42, and the assembling property is further improved. be able to.

In the above-mentioned example, the plurality of ribs 43 have the same inclination angle, but the inclination angles may be different from each other. The inclination angle in the present embodiment is an angle of the inclined surface 431 with respect to the front-rear direction. In the third modification shown in FIG. 9, among the plurality of ribs 43, the upper rib 43A has a smaller inclination angle of the inclined surface 431 than the other ribs 43, the lower rib 43B, the left rib 43C, and the right rib 43D. .. That is, the inclination of the inclined surface 431 of the upper rib 43A is gentler than the inclination of the inclined surface 431 of the lower rib 43B, the left rib 43C, and the right rib 43D. Therefore, in this modification, the upper rib 43A has a larger contact area with the outer peripheral surface 342 of the boss 34 than the lower rib 43B, the left rib 43C, and the right rib 43D. Here, since the upper rib 43A is located above the boss 34, the weight of the cabinet 4 may act on the boss 34 from the upper rib 43A. In this modification, the upper rib 43A has a larger contact area with the outer peripheral surface 342 of the boss 34 than the other ribs 43, so that the load acting on the boss 34 from the upper rib 43A is dispersed. As a result, deformation of the upper rib 43A can be suppressed.

Further, the shape of the rib 43 is not limited to the shape shown in FIGS. 5, 6 and the like. In the fourth modification shown in FIG. 10, the rib 43 is curved so that the surface of the boss 34 facing the outer peripheral surface 342 projects toward the outer peripheral surface 342. In the fifth modification shown in FIG. 11, the rib 43 has a trapezoidal cross section orthogonal to the front-rear direction. In the sixth modification shown in FIG. 12, the rib 43 has a groove formed along the front-rear direction on the surface of the boss 34 facing the outer peripheral surface 342.

1 Display device 2 Display panel 3 Chassis 34 Boss 342 Outer peripheral surface 4 Cabinet 42 Through hole 421 Inner peripheral surface 43 Rib 43A Upper rib 431 Inclined surface L1 First dimension L2 Second dimension

Claims (5)

A display panel that displays images and
The chassis that supports the display panel and
A cabinet covering the chassis from the opposite side of the display panel.
The chassis has a boss provided so as to project toward the cabinet.
The cabinet is formed with a through hole through which the boss is passed.
A plurality of ribs are formed on the inner peripheral surface of the through hole.
Display device. The plurality of ribs are in contact with the outer peripheral surface of the boss.
The display device according to claim 1. Each of the plurality of ribs has an inclined surface formed so as to approach the boss toward the outside of the cabinet.
The display device according to claim 1 or 2. The plurality of ribs include an upper rib located above the boss.
The upper rib has a smaller inclination angle of the inclined surface than the other ribs among the plurality of ribs.
The display device according to claim 3. The protruding dimension of the plurality of ribs is set as the first dimension.
The dimension between the rear end portion of the plurality of ribs and the rear end portion of the inner peripheral surface of the through hole is defined as the second dimension.
The second dimension is longer than the first dimension.
The display device according to any one of claims 1 to 4.

Images