JP2003151396A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a button mechanism in a small space of a display device. SOLUTION: A resilient button seat 40 is disposed so as to partly overlap with the back of the head part 31, 31a of a button 30, 30a pierced through a decorative plate 20 on the side of a display part of a display device so that the button 30, 30a is returned to its inactive position by the restoring force of the button seat 40 when the button 30, 30a is pressed. Thereby, the button 30, 30a pressed at the time of switching operation is returned to the inactive position thereof by the button seat 40, a button mechanism of a display device can be simplified and also disposed in a small space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a display device used as a monitor for televisions, personal computers and the like.

[0002]

2. Description of the Related Art In recent years, display devices such as televisions and personal computers have been required to have a large screen size or a thin device itself. Among such display devices, a liquid crystal monitor using a liquid crystal panel has recently been particularly thinned.

A thin display device effectively uses its front surface as an image display portion for displaying an image, suppresses the thickness of the device itself, or from the viewpoint of design as a product, volume, contrast, and display position. In many cases, buttons for operation of selecting various functions for performing adjustment of the above and switching of image inputs and their operating mechanisms are arranged on the side surface of the apparatus.

This button mechanism provided on the side of the device is
In the past, the button was mainly supported by a spring from the back side, and the spring force was used to move the button forward and backward.

[0005]

However, in the conventional display device, as the thickness of the display device is reduced, a space for arranging a spring mechanism for advancing and retracting the button is secured on the side surface of the device, and the button is advanced and retracted. Since it is necessary to secure an operation stroke for doing so, it has become difficult to provide a button mechanism in a space where the side surface of the device is small except for the image display unit.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display device in which a button mechanism is provided in a space having a small number of side portions without impairing thinning.

[0007]

According to the present invention, in a display device having a switch for selecting or switching functions, a decorative plate fixedly arranged on the outer surface of the cover corresponding to the built-in switch. , A head penetratingly arranged in a through hole formed in the decorative plate, a shaft for transmitting a pressing operation of the head to the switch, and a stopper protruding in a direction orthogonal to the center of the shaft so as to abut on the back surface of the decorative plate. The button is integrally formed with the decorative plate so that it is partially overlapped with the back surface of the head of the button on the back side of the decorative plate and has a spring property to return the button to its non-operating position when pressed. There is provided a display device including a button sheet.

According to the above construction, the button sheet, which is arranged so as to partially overlap the back surface of the head of the button penetratingly arranged in the decorative plate, has a spring property so that the pressed button cannot be pressed. Return to operating position. As a result, when the switch is operated, the button pressed inside the display device is pushed back to the non-operating position again by the restoring force of the portion of the button sheet that overlaps the back surface of the head of the button. By performing such a button pressing operation using a sheet-shaped button sheet, the button mechanism is arranged in a small space.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings, taking as an example the case of being applied to a liquid crystal monitor.

FIG. 1 is a side view of the liquid crystal monitor. The liquid crystal monitor 10 has an image display unit 11 for displaying an image. The image display unit 11 has an arm 12 having one end connected to the back surface thereof, and a base 13 having the other end of the arm 12 connected thereto. It is supported by a stand portion 14 composed of.

A thin liquid crystal panel, which is a flat panel display, is fixed to the inside of the front cover 11a in the image display section 11. The liquid crystal panel is used for adjusting volume, contrast, display position, and image input switching. A switch circuit or the like including a switch to perform is connected. The switch circuit is arranged near the inside of the side surface of the image display unit 11, and includes a front cover 11a on which a liquid crystal panel, a switch circuit, and the like are arranged, and a rear cover 11b from the back.
Is attached.

On the side surface of the image display unit 11, the decorative plate 20 is provided at a position corresponding to the switch of the built-in switch circuit.
Is fixedly arranged, and a plurality of buttons 30 and 30a for depressing the switch by a function selecting operation or a switching operation are arranged on the decorative plate 20.

The image display unit 11 is capable of adjusting a screen angle with a connection portion with the arm 12 as a fulcrum, and the arm 12 is rotatable about a connection portion with the base 13. It is arranged so that the height of the image display unit 11 can be adjusted. Further, the image display unit 11 is rotatably supported by the stand unit 14 within a range of an angle of 90 degrees so that the vertical and horizontal directions of the screen can be switched.

A speaker, an amplifier, an interface circuit, a connection terminal, etc. are mounted on the base 13, and the interface circuit is connected to the liquid crystal driver circuit of the image display section 11.

FIG. 2 is a rear view of the decorative plate viewed from the back side. The decorative plate 20 attached to the side surface of the image display unit 11 shown in FIG. 1 has a plurality of through holes 21 formed at predetermined positions where buttons are arranged.

On the back surface of the decorative plate 20, leg portions 22 for attaching the decorative plate 20 to the front cover 11a and fixing the same by welding are integrally formed in a direction perpendicular to the rear surface. Further, in the vicinity of each through hole 21, a protrusion 23
Are provided so as to be displaced from the center line position in the longitudinal direction of the decorative plate 20 to the left in the drawing or the right in the drawing. Further, hooking portions 24 projecting to the back side are provided near both ends of the decorative plate 20, and the front cover 1 to which the decorative plate 20 is attached is attached.
When the rear cover 11b is attached to 1a, it is adapted to be hooked with the corresponding hooking portion.

3 and 4 are rear views of the decorative plate on which the buttons are arranged. The button 30 shown in FIG. 3 includes a head 31 having a top surface exposed to the outside of the liquid crystal monitor 10 shown in FIG. 1 exposed by a finger, and a head 31 when the head 31 is pressed with a finger.
A shaft 32 that transmits the pressing operation to a switch inside the liquid crystal monitor 10 and a stopper 33 that projects in the longitudinal direction of the decorative plate 20 and prevents the decorative plate 20 from falling off are integrally formed.

The stopper 33 of the button 30 has a shaft 32.
The notch portions 34 and 35 that are notched in a point-symmetrical manner with respect to the longitudinal center line of the decorative plate 20 as a boundary.
have. The button 30 having such a shape is loosely fitted into the decorative plate 20, and at this time, the cutout portions 34 and 35 of the button 30 are located from the center line position in the longitudinal direction of the decorative plate 20 as shown in FIG. It does not interfere with the protruding portion 23 provided on the left side in the figure, and the button 30 can be attached to the decorative plate 20 while avoiding the protruding portion 23. Further, the button 30 can be attached without interference between the protrusion 23 and the cutouts 34 and 35 even when the orientation of the button 30 is changed.

On the other hand, the button 30a shown in FIG.
Similar to the button 30 shown in, the head portion 31a, the shaft 32a, and the stopper 33a are integrally formed. The stopper 33a of the button 30a has a notch portion 34 in which only one of the portions extending from the shaft 32a to both sides is notched.
a. The notch 34a is formed at a position different from the notch 34 of the button 30 shown in FIG. When the button 30a having such a shape is attached to the decorative plate 20, the cutout portion 34a is provided so as to project from the center line position in the longitudinal direction of the decorative plate 20 to the right side in the drawing, as shown in FIG. The button 30 can be attached to the decorative plate 20 while avoiding the protrusion 23. In addition, the button 30a is provided with a stopper 33 when the orientation of the button 30a is changed.
Of the portions extending on both sides of a, the portions on the side where the cutout portions 34a are not formed interfere with the protrusions 23, so that they cannot be mounted.

The button 30a has a protrusion 23 and a notch 34 at a position where the button 30 shown in FIG. 3 can be mounted.
Since it interferes with a, it cannot be mounted, and even if its orientation is changed, it cannot be mounted at that position.

As described above, the buttons 30 and 30a are provided with a mechanism capable of preventing erroneous attachment so that the buttons 30 and 30a can be attached to the decorative plate 20 only at predetermined positions where they should be attached to each other. Therefore, for example, when one of the two types of buttons is provided with a protruding mark indicating its function and the location of the location is limited, the location of the two types of buttons at the time of assembly and There is no mistake in the direction of placement.

On the back surface of the decorative plate 20 to which the buttons 30 and 30a are attached, the buttons 30 and
A button seat 40 having a spring property for returning the buttons 30, 30a to the original non-operating position again when the button 30a is pressed is arranged.

FIG. 5 is a view showing a state in which the button sheet is arranged. However, in FIG. 5, the part where the button 30 is arranged is shown. The button sheet 40 is
The decorative plate 20 has a plurality of insertion holes 41 through which the legs 22 are inserted. The insertion holes 41 have a circular shape or an oval shape so that the button sheet 40 can be easily positioned on the decorative plate 20. It is formed in two types.

The button 30 is placed at a position corresponding to the button 30 mounted on the decorative plate 20 of the button sheet 40.
There is formed an opening 42 having a size that allows the passage. The opening 42 has an S-shape with respect to the back surface of the head 31 of the button 30.
The tongue portions 43 and 44 are formed so as to be displaced inwardly from the edge portions of the two and protrude in mutually opposite directions. This tongue 4
The tips of 3, 44 partially overlap with the back surface of the head 31, and the shaft 32 of the button 30, the stopper 33,
And the protruding portion 23 of the decorative plate 20 is formed on the button sheet 4
It is positioned in the space between the tongue portions 43 and 44 of the zero opening portion 42.

As the material of the button sheet 40, for example, a polymer material such as polyethylene terephthalate can be used. By forming with such a material,
On the button sheet 40, the tongue portions 43, 44 on the back surface of the head 31 when the button 30 is pressed by the switch operation.
The button 30 can be pushed back with a spring property.

Although the button 30 is shown in FIG. 5, the button sheet 40 is arranged in the same manner for the directional button 30a. FIG. 6 is a sectional view of a decorative plate on which buttons and button sheets are arranged. The decorative plate 20 on which the buttons 30 and 30a and the button sheet 40 are arranged has a groove portion 28 having a circular bottom cross section which is recessed from the flat surface 27 including the front edge portions 25 and 26 to the rear surface side of the decorative plate 20. Has been formed.

The buttons 30, 30a fitted into the predetermined through holes 21 from the rear surface side of the decorative plate 20 are mounted by stopping the stoppers 33, 33a by abutting the stoppers 33, 33a on the rear surface of the decorative plate 20 when not operating. Is in a state.

The tongue portions 43 and 44 of the button sheet 40 arranged on the back side of the decorative plate 20 have buttons 30, 3 respectively.
0a head 31,31a located on the back side of the shaft 32,32
a and the stoppers 33, 33a are inserted into the opening 42.

Here, when the switch is operated, the buttons 30,
When the button 30a is pressed, this pressing operation causes the axes 32, 32
A is transmitted to the switch of the switch circuit built in the liquid crystal monitor 10 shown in FIG. Then, when the force of pressing the buttons 30, 30a is removed, the tongue portions 43, 44 of the button sheet 40 push the back surfaces of the heads 31, 31a by their restoring force, and the buttons 30, 30 are removed.
a is returned to the non-operating position again.

Buttons 30, 30 shown in FIGS. 5 and 6
The decorative plate 20 on which the a and the button sheet 40 are arranged is
The front cover 11 of the image display unit 11 of the liquid crystal monitor 10.
It is attached to a.

FIG. 7 is a side view of the front cover as seen from the button mounting side. The front cover 11a has a leg insertion hole 51 through which a predetermined number of legs 22 of the decorative plate 20 are inserted.
And a shaft insertion hole 52 into which the shafts 32 and 32a of the buttons 30 and 30a are inserted are formed at predetermined positions. Also,
The vicinity of both ends of the front cover 11a has a notch shape so that the hooking portion 24 of the decorative plate 20 projects to the inside of the front cover 11a.

Buttons 30, 30a and button sheet 4
The decorative plate 20 on which 0 is arranged has its leg portions 22 welded to the inside of the front cover 11a.
Fixed to.

At this time, the shafts 32 and 32a for transmitting the pressing operation of the buttons 30 and 30a are inserted into the shaft insertion holes 52 of the front cover 11a to press the switch of the switch circuit. At that time, the buttons 30, 30a
Can only enter the inside to the position where the stoppers 33, 33a come into contact with the front cover 11a, and thus the maximum pressing amount at the time of button operation is restricted.

As described above, in the liquid crystal monitor 10, the pressed buttons 30 and 30a are pushed back to the non-operating position by the button sheet 40.
The conventional button mechanism can be simplified. further,
By using a thin button sheet 40,
The button mechanism can be provided in a small space such as a side surface portion of the liquid crystal monitor 10, and the cost can be reduced.

In the above description, the button sheet 40
The case where the material of the button is polyethylene terephthalate has been described as an example, but the buttons 30, which are attached to the decorative plate 20,
It is also possible to use an elastic sheet material such as rubber which is opened at a position corresponding to 30a so as to partially overlap the back surfaces of the heads 31 and 31a of the buttons 30 and 30a.

[0036]

As described above, according to the present invention, the button sheet having the spring property is arranged so as to partially overlap the back surface of the head of the button penetratingly arranged in the decorative plate, and the button is pressed. At this time, the button sheet is configured to return the button to its non-operating position. As a result, the pressed button is restored by the sheet-shaped button sheet, and the button mechanism of the display device can be simplified and the button mechanism can be arranged in a small space.

[Brief description of drawings]

FIG. 1 is a side view of a liquid crystal monitor.

FIG. 2 is a rear view of the decorative plate viewed from the back side.

FIG. 3 is a rear view of the decorative plate on which the buttons are arranged (No. 1)
Is.

FIG. 4 is a rear view of the decorative plate on which the buttons are arranged (No. 2)
Is.

FIG. 5 is a diagram showing a state in which a button sheet is arranged.

FIG. 6 is a cross-sectional view of a decorative plate on which a button and a button sheet are arranged.

FIG. 7 is a side view of the front cover seen from the button mounting side.

[Explanation of symbols]

10 ... Liquid crystal monitor, 11 ... Image display section, 11a ...
Front cover, 11b ... rear cover, 12 ... arm, 13 ... base, 14 ... stand part, 20 ... decorative plate, 21 ... through hole, 22 ... leg part, 23 ... projection part, 24 ... … Latch, 25, 26 …… Front edge, 27 ……
Plane, 28 ... Groove, 30, 30a ... Button, 31,
31a ... Head, 32, 32a ... Shaft, 33, 33a ...
... Stopper, 34, 34a, 35 ... Notch, 40
...... Button sheet, 41 ...... insertion hole, 42 ...... opening,
43, 44 ... tongue portion, 51 ... leg insertion hole, 52 ... shaft insertion hole.

Claims (10)

[Claims] 1. A display device having a switch for selecting and switching functions, and a decorative plate fixedly arranged on an outer surface of the cover corresponding to the built-in switch, and a penetrating hole formed in the decorative plate. A head that penetrates through the hole,
A button integrally formed with a stopper protruding in a direction orthogonal to the center of the shaft so as to abut the shaft for transmitting the pressing operation of the head to the switch and the rear surface of the decorative plate; A button seat having a spring property that is arranged so as to partially overlap the back surface of the head of the button on the side and returns the button to its non-operating position in response to the pressing operation. A display device characterized by. 2. The button sheet, wherein the button sheet is made of a rigid sheet material, and the opening portion is opened at a position corresponding to the button, and the opening portion is partially overlapped with a back surface of the head portion of the button. The display device according to claim 1, further comprising: a tongue portion protruding inward from an edge portion of the tongue portion. 3. The tongue portion is offset from the back surface of the head of the button so that the opening has an S-shape, and protrudes from mutually opposite directions. Display device. 4. The button sheet is made of polyethylene terephthalate as a material thereof.
Display device described. 5. The display according to claim 1, wherein the button sheet is made of an elastic sheet material which is opened at a position corresponding to the button so as to partially overlap the back surface of the head of the button. apparatus. 6. The display device according to claim 5, wherein the button sheet is made of rubber. 7. The button has an elongated head portion,
2. The display device according to claim 1, further comprising an erroneous attachment prevention mechanism for attaching the button having the elongated head portion to the predetermined through hole of the decorative plate. 8. The erroneous mounting prevention mechanism comprises a protrusion protruding toward the back side in the vicinity of the through hole of the decorative plate, the protrusion protruding when the button is mounted in a predetermined through hole. The display device according to claim 7, wherein a cutout portion is formed in the stopper of the button so as not to interfere with the portion. 9. The display device according to claim 8, wherein the notch is provided in a point-symmetrical shape on the stopper protruding in both directions. 10. The display device according to claim 8, wherein the cutout portion is provided only on one side of the stopper protruding in both directions.