JP2003274474A - Display apparatus and option unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily detach an option unit from a display body correspondingly to change of the attitude of a display apparatus. <P>SOLUTION: The display apparatus is configured with the display body (1) having a rectangular display screen on which a video image is displayed, the option unit (2) for containing speaker bodies in pairs with the display body at prescribed intervals, and fixing mechanism for detachably fixing the option unit to the display body, and the fixing mechanism is configured with an engagement hole (20) provided to either of the display body and the option unit and an engagement member (22) provided to the other and inserted to the engagement hole, and either the plurality of engagement holes or the plurality of engagement members are provided to one side and the other side of the rectangle which the display screen of the display body forms at equal intervals. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device of liquid crystal type, plasma type or CRT type,
And an option unit used for this.

[0002]

2. Description of the Related Art A display device such as a liquid crystal monitor used in a computer or the like may be provided with an optional unit having a built-in speaker or the like. This optional unit is mounted, for example, in Japanese Patent No. 3175048. A structure attaches to the display device. That is, according to this conventional technique, the speaker unit is attached to the lower surface of the housing of the display device (the downward surface of the front surface of the display, which is orthogonal to the display surface), and is provided on the lower surface of the housing. The speaker unit is configured to be attached using the fitting hole and the engaging groove, and the engaging member and the fixing member provided on the upper surface of the speaker unit.

The speaker unit mounted by such a method is generally mounted so that its center is substantially the same as that of the screen to perform 2-channel stereo reproduction matching an image.

[0004]

By the way, there are various kinds of contents handled by a computer, and the shape thereof is not always limited to the horizontally long shape, and there are some contents in which the vertical and horizontal directions are reversed. The orientation of the display device is changed to 9 depending on the form of the image.
You may want to rotate it 0 degrees. In particular, in the case of a display device of a liquid crystal type or a plasma type, which is lighter and smaller than the CRT type, the posture changing operation is easy, and therefore, it tends to be performed more frequently than before.

However, in the speaker unit mounting structure in the above-mentioned prior art, since the speaker unit is integrated with the display main body, it matches the screen when the display device as described above is used in the portrait orientation. There is a problem that two-channel stereo reproduction cannot be performed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an option unit whose mounting direction can be easily changed in response to a change in the attitude of a display device. And

[0007]

To achieve the above object, according to the present invention, a display main body having a rectangular display surface on which an image is displayed and a pair of option main bodies are housed at predetermined intervals. And a fixing mechanism for removably fixing the option unit to the display main body, the fixing mechanism including an engagement hole provided in one of the display main body and the option unit. , An engaging member which is provided on the other side and is inserted into the engaging hole,
Any one of these engaging holes or engaging members is provided on a surface including one side and the other side of a rectangle formed by the display surface of the display body, and a plurality of them are provided at equal intervals. Is characterized by. Further, the display surface has a rectangular shape, and a long side thereof is the one side and a short side is the other side. Further, the fixing portion is characterized in that the center of the pair of option main bodies is aligned with the center of the display surface so as to fix both of them. Further, the engaging hole is provided in a rear surface of the display body which is substantially parallel to and opposite to the display portion. Further, the engaging member has a groove portion around the engaging hole into which the display main body is inserted. Further, between the rear surface of the display device and the surface of the option unit facing the rear surface, the engaging hole and the engaging member are parallel to the rear surface by inserting one of them into the other. It is characterized in that a positioning mechanism for performing relative positioning in a plane is provided. The display surface of the display body is attached to a display body having a rectangular display surface on which an image is displayed, and a pair of option bodies are housed at a predetermined interval from each other. It is characterized in that it has an engaging member to be inserted into one provided in any one of a plurality of engaging holes provided in each of one side and the other side of the rectangle.

[0008]

1 to 5 show an embodiment of the present invention, in which reference numeral 1 is a display main body and reference numeral 2
Is an optional unit. An example in which a speaker is incorporated will be described as an example, but it includes various units having additional functions other than the speaker. The display main body 1 has a rectangular (rectangular in the illustrated case) display surface 10 made of a liquid crystal display device, and a rear surface 11 that is substantially parallel to and opposite to the display surface 10 has a universal joint 12.
It is connected to the support stand 13 via. That is, the universal joint 12 can rotate the display body 1 in various postures as shown in FIG. 5 by utilizing a mechanism such as a spherical pair. In addition,
Of the surfaces orthogonal to the display surface 10 and the back surface 11, in the state of FIG. 1, the downward surface is the lower surface 14, the upward surface is the upper surface 15, and the laterally oriented surfaces are the side surfaces 16 and 17.
Shall be called.

The display body 1 and the speaker unit 2 are provided on the front surface of the speaker unit 2 in either one of the two pairs of engagement holes 20 or 21 provided on the back surface 11 of the display body 1. A pair of engaging members 2
By engaging the two, they are detachably connected. Then, these engaging holes 20 or 21 and the engaging member 2
A fixing mechanism is constituted by 2 and. Further, the rear surface 11 of the display body 1 is provided with two pairs of engaging recesses 23 and 24, and one of the engaging recesses 23 and 24 is provided on the front surface of the speaker unit 2. By fitting the pair of engaging convex portions 25, the display main body 1 and the speaker unit 2 are separated from each other by the rear surface 11.
Is relatively positioned in a plane including Then, the engagement concave portion 23 or 24 and the engagement convex portion 25 constitute a positioning mechanism.

The speaker unit 2 has a space inside, and a speaker body (not shown) is housed in the sound source sections 30 at both ends thereof, and the pair of sound source sections 3 are provided.
A set of 2-channel sound sources is composed of 0s.
Further, the speaker unit 2 has a through hole 31 shown in FIG.
Is communicated to the outside through this, and as a result, this internal space is
It also functions as a bass reflex type speaker box that inverts and emits an antiphase sound wave generated from the back side of the diaphragm of the speaker body (not shown). Further, the upper surface of the connecting portion 32 connecting the pair of sound source portions 30 to each other is formed in a planar shape having a predetermined area and is in contact with the lower surface 14 of the display body 1. The connecting portion 32
In addition to the function as the speaker box, the inside of may be used for the purpose of housing a circuit such as a power amplifier for power amplification and a power supply circuit, if necessary. Note that reference numeral 33
Is a lead-in port for a cable or the like for electrically connecting the speaker unit 2 and the display body 1 or a computer (not shown).

Next, the details of the structure for attaching the speaker unit 2 to the display body 1 will be described with reference to FIG. The engaging member 22 is connected to the operation piece 41 via a connecting portion 40 that is slidable in the left-right direction in FIG. 4 along the inner surface of the speaker unit 2. The operation piece 41 is slidably supported in the slit-shaped guide hole 42 in the left-right direction in FIG. 4, and as a result, the engagement member 22 is operated in conjunction with the operation of the operation piece 41. 4 can be moved in the left-right direction (direction connecting the pair of speaker bodies to each other).

The tip ends 43 of the engaging members 22 are directed in opposite directions (outside) along the sliding direction thereof, and as a result, the plate-like portion 43 around the engaging holes 20 (21) is formed as shown in FIG.
As shown in (a), it is sandwiched between the speaker unit 2 and the speaker unit 2. Further, a compression spring 45 is provided on the side of the connecting portion 40, and biases the engaging member 22 in a direction in which the engaging member 22 is engaged with the plate-shaped portion 43. Also,
The movement of the connecting portion 40 due to this urging is stopped at a predetermined position by contacting the stopper 46. On the other hand, the movement in the direction against the bias is
By contacting the tip of the cylindrical portion 47 that houses the compression spring 45, the compression spring 45 is regulated at a predetermined position. That is, the movement in the direction of compressing the spring causes the cylindrical portion 47 to move.
The position of the tip 43 of the engaging member 22 is set so as to overlap with the engaging hole 20 (21) by being regulated by.

As shown in FIG. 2, the mutual distance L between the pair of engaging holes 20 and the mutual distance L between the pair of engaging holes 21 are set equal to each other, and the relative distance between the engaging hole 20 and the engaging concave portion 23 is large. The relative positional relationship between the engaging hole 21 and the engaging concave portion 24 is set to an equal distance L. Therefore, the speaker unit 2 can be attached using the engaging hole 20 and the engaging recess 23, or can be attached using the engaging hole 21 and the engaging recess 24.

Next, the operation of attaching and detaching the speaker unit 2 to and from the display body 1 will be described. Mounting operation As shown in Fig. 1, set the speaker unit 2 horizontal,
The operation is performed by inserting the display body 1 from below under the display body 1. At the time of this operation, the operator holds the speaker unit 2 and brings the operation portions 41 toward each other with fingers (see FIG. 4b). By this operation, the mutual distance between the pair of engaging members 22 and the mutual distance between the pair of engaging holes 20 (or 21) become the same. If the upper surface of the connecting portion 32 is slid along the lower surface 14 of the display main body 1 in this state, the engaging piece 22 and the engaging convex portion 25 are substantially heightwise with respect to the engaging hole 20 and the engaging concave portion 21. Can be positioned. That is, by appropriately setting the position of the upper surface of the connecting portion 32, the speaker unit 2 can be easily positioned while being guided to the upper surface of the connecting portion 32. Further, since the connecting portion 32 needs a certain amount of cavity for functioning as a speaker box, a certain amount of area is required for the upper surface as well, so that sound quality can be improved and stable attaching operation can be performed. it can. When the speaker unit 2 is further slid in the direction of the arrow in FIG.
Inserted in 3.

Here, by setting the engagement convex portion 25 in a predetermined positional relationship with the engagement member 23, the engagement member 22 is positioned at a position overlapping the engagement hole 20, and the engagement is performed. It is inserted into the hole 20. Then, when the fingers holding the operation piece 41 are released, the restoring force of the compression spring 45 moves the engaging member 22 in the direction opposite to the arrow in FIG. 4b (the direction in which the pair of engaging members 22 separate from each other). As shown in FIG. 4A, the engagement member 22 engages with the engagement hole 20 with the distal end portion 43 sandwiching the plate-like portion 44.

[0016] When the speaker unit 2 for detaching operation is held, and the operating piece 41 is pressed with fingers into the inward direction, the tip end portion 43 reaches a position where it does not overlap the plate-like portion 44, and in this state the speaker unit 2 is moved backward. The speaker unit 2 can be easily removed from the display main body 1 by pulling it out to.

When changing the attitude of the display main body 1 from the horizontally long attitude of FIG. 1 to the vertically long attitude, the speaker unit 2 is detached as shown in FIG. 5b from the state of FIG. 5a by the above-mentioned operation, and as shown in FIG. 5c. The display main body 1 is rotated about the universal joint 12 to be in a vertically long posture, as shown in FIG.
As shown in d or e, the speaker unit 2 is attached to the side surface 1
It can be attached to or detached from the display body 1 while sliding along the line 6. In this case, the engagement hole 20
And the engagement recess 23 have a positional relationship between the engagement hole 21 and the engagement recess 2.
Since the positional relationship is the same as that of No. 4, the same operation as the attaching / detaching operation in the laterally long posture may be performed. In this embodiment, the engaging holes 20, 2 are provided on the back surface of the display body 1.
1 and the engaging recesses 23 and 24 are provided, the engaging hole and the engaging recess that are not used for mounting the speaker unit 2 are not visible to the operator on the front side of the display main body 1. The aesthetic appearance of the display body 1 can be enhanced more than when the side surface or the bottom surface of the display body 1 is used for mounting the speaker unit 2.

The specific structure for engaging the engaging member and the engaging hole is not limited to the above embodiment, but may be modified as follows, for example. Instead of moving both the pair of engaging members, one may be fixed and only one may be moved to reduce the number of parts. Instead of providing the engaging hole and the engaging concave portion on the display body 1 side and the engaging member and the engaging convex portion on the speaker unit 2 side, the engaging hole and the engaging convex portion are provided on the display body 1 side. May be provided, and the engaging member and the engaging concave portion may be provided on the speaker unit 2 side. The shape of the engaging member 22 is changed from the L shape as in the embodiment to a sharp shape such that the tip is elastically deformed easily, and the operator does not have to hold the operating portion by fingers when attaching, which enables one-touch attachment. You can also do it. The number of fixing mechanisms is not limited to one pair as in the embodiment,
A larger number may be provided. The display system of the display device is not limited to the liquid crystal display system as in the embodiment, and may be a plasma system or a CRT system.

[0019]

As is apparent from the above description, according to the present invention, a plurality of fixing mechanisms are provided along one side and the other side of a rectangle formed by the display surface of the display main body, respectively. Since the mutual spacing of the fixing mechanism is the same on one side and the other side, the speaker unit can be easily attached in the direction aligned with the screen in response to the change in the attitude of the display body. Further, since the fixing mechanism is provided between the rear surface of the display body and the front surface of the speaker unit to connect them, regardless of the attitude of the display body, the fixing mechanism is difficult to see from the front of the display body, The aesthetics of the display device can be enhanced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is a rear view of the display body according to the embodiment.

FIG. 3 is a front view, a top view, a rear view, and a side view of a speaker unit according to an embodiment.

FIG. 4 is an enlarged cross-sectional view of an engagement member and an engagement hole portion according to an embodiment.

FIG. 5 is an explanatory diagram of a speaker unit mounting operation according to the embodiment.

[Explanation of symbols]

1 Display body 2 Optional unit 11 back 12 universal joint 14 Lower surface 16 Side surface 20 21 Engagement hole 22 Engagement member 23 24 Engagement concave part 25 Engagement convex part 30 sound source section 32 connecting section 40 connection part 41 operation piece 43 tip 44 plate 45 Compression spring 47 Cylindrical part

Claims (7)

[Claims] 1. An option unit in which a display main body having a rectangular display surface for displaying an image and a pair of speaker main bodies are housed at a predetermined interval from each other, and the option unit is detachable from the display main body. A fixing mechanism for fixing to the display main body and the option unit, and the fixing mechanism is provided in either one of the display body and the option unit, and is inserted in the engaging hole provided in the other. And an engaging member, and either the engaging hole or the engaging member,
A display device, wherein a plurality of them are provided on a surface including one side and the other side of a rectangle formed by the display surface of the display body, and are arranged at equal intervals. 2. The display device according to claim 1, wherein the display surface has a rectangular shape, a long side of which is the one side, and a short side of which is the other side. 3. The display device according to claim 1, wherein the fixing portion fixes the pair of speaker main bodies so that the center of the pair of speaker main bodies coincides with the center of the display surface. 4. The display device according to claim 1, wherein the engaging hole is provided in a rear surface of the display body which is substantially parallel to and opposite to the display portion of the display body. . 5. The display device according to claim 4, wherein the engagement member has a groove portion around the engagement hole, into which the display body is inserted. 6. The engagement hole and the engagement member are provided between the back surface of the display device and a surface of the option unit facing the back surface by inserting one of the other into the other. The display device according to claim 4 or 5, further comprising a positioning mechanism for relatively positioning in a plane parallel to the back surface. 7. A display body having a rectangular display surface on which an image is displayed, the pair of speaker bodies being housed at a predetermined interval from each other. A plurality of engaging holes provided on each of one side and the other side of the rectangle formed by the surface, and having an engaging member to be inserted into one provided on one of the sides. Optional unit to be used.