JP3751036B2 - Device having an indicator - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an apparatus having a display for displaying various information on a display panel such as a liquid crystal display.
[0002]
[Prior art]
As a vehicle-mounted AV device having this type of display, for example, the one shown in Japanese Patent Laid-Open No. 6-139758 and FIG. 4 is known.
In FIG. 4, reference numeral 1 denotes a housing having an opening on the front surface (the surface on the right side in the figure). Inside the housing 1, a cassette deck 2, a liquid crystal display device 10, a CD device (not shown), a television / radio tuner, etc. Is housed. The liquid crystal display device 10 has a rectangular liquid crystal display plate 11 on the front surface, and a TV image and various types of information are displayed on the display plate 11. A front panel 3 is attached so as to cover the front opening of the housing 1, and a transparent acrylic plate (liquid crystal protective plate) 4 is fixed to a window 3 a provided in the front panel 3 in advance. Therefore, when the front panel 3 is attached to the housing 1, the front surface of the liquid crystal display plate 11 is covered with the acrylic plate 4, and the image information on the liquid crystal display plate 11 is visually recognized through the acrylic plate 4.
[0003]
[Problems to be solved by the invention]
However, since the acrylic plate 4 is conventionally attached to the front panel 3 in advance, the liquid crystal display plate 11 is exposed to the outside before the liquid crystal display device 10 is assembled into the housing 1, and the liquid crystal display plate 11. Dust adheres to it and fingers are easy to touch. Therefore, not only when the liquid crystal display device 10 is assembled, but also in the process of mounting the liquid crystal display device 10 in the housing 1 and attaching the front panel 3, the operation is performed in a special environment such as a clean room, and the liquid crystal display plate It was necessary to pay close attention not to touch a finger or the like on 11 and this was a burden on the operator.
[0004]
An object of the present invention is to provide an apparatus having a display that can perform an operation of incorporating the display unit into the apparatus main body under a normal environment without using a clean room or the like and can reduce a burden on the operator. There is.
[0005]
[Means for Solving the Problems]
2 and 3 showing an embodiment, the present invention has a casing 21 having an opening on the front surface and a body case 31 for holding a display plate 32 on the front surface. A display 30 that is inserted and fixed in the housing 21 through the opening in a posture facing forward, a transparent protective plate 33 that covers the display plate 32, and a display plate 32 for visually recognizing the display plate 32 through the protective plate 33. The present invention is applied to an apparatus having a window 24 a and a front panel 24 that covers the opening of the housing 21.
And in the state which has the center opening part and the peripheral part of the attachment metal fitting 5 fitted in the display board periphery part of the main body case 31 so that the display board 32 may be exposed from the center opening part, and the protection board 33 And an attachment frame 34 that is closely attached and fixed to the attachment fitting 35 before the display 30 is assembled in the housing 21, and the attachment frame 34 is a space between the display plate 32 and the protection plate 33. It is fixed to the mounting bracket 35 so that the SP is sealed .
The invention of claim 2 uses the liquid crystal display panel 32 as the display panel.
[0006]
[Action]
The protection plate 33 is attached to the display 30 in advance via the attachment mechanisms 34 and 35 before the display 30 is assembled into the housing 21. Since the space SP between the display plate 32 and the protection plate 33 is sealed, dust does not adhere to the display plate 32 even if the operation of assembling the display device 30 into the housing 21 is not performed in a clean room or the like. Further, a finger or the like does not touch the display board 32.
[0007]
In the section of means and action for solving the above-described problems for explaining the configuration of the present invention, the drawings of the embodiments are used for easy understanding of the present invention. However, the present invention is limited to the embodiments. It is not something.
[0008]
【Example】
An embodiment when the present invention is applied to an in-vehicle AV device will be described with reference to FIGS.
FIG. 1 is a front view of an in-vehicle AV device according to the present invention, and FIG. 2 is a sectional view taken along line II-II. This AV device is a so-called 2DIN size, and has a substantially rectangular parallelepiped casing 21 whose front surface (right side surface in FIG. 2) is open. The casing 21 accommodates a cassette deck 23 having a reproduction function of the cassette tape 22, a CD device (not shown), a television / radio tuner, and the like, and a liquid crystal display device 30 near the opening. . The liquid crystal display device 30 will be described in detail later.
[0009]
Reference numeral 24 denotes a front panel that covers the front opening of the housing 21, and the front panel 24 is formed with a window 24 a for viewing the display screen of the liquid crystal display device 30. A cassette insertion opening 24b for the cassette deck 6 is formed above the window 24a of the front panel 24, and the cassette tape 22 is inserted into the cassette deck 23 from the insertion opening 24b or the cassette tape 22 is inserted from the cassette deck 23. Discharged. An acrylic plate for protecting liquid crystal is not attached to the window 24a.
[0010]
The liquid crystal display device 30 includes a main body case 31, a rectangular liquid crystal display plate 32 held on the front surface of the main body case 31, and a rectangular acrylic plate 33 attached so as to cover the front surface of the liquid crystal display plate 32. Yes. As shown in the enlarged view of FIG. 3, the entire periphery of the acrylic plate 33 is fixed to the surface 34 a of the mounting frame 34 with a double-sided tape or the like in advance. Reference numeral 35 denotes a rectangular mounting bracket that is fitted into the front surface of the main body case 31, and the liquid crystal display panel 32 is exposed from the central opening. The front surface 35a of the mounting bracket 35 and the back surface 34b of the mounting frame 34 are formed in a substantially flat shape.
Reference numeral 36 denotes a backlight lamp housed in the main body case 31, 37 a diffusion plate for diffusing light from the lamp 36 and guiding it to the back surface of the liquid crystal display plate 32, and 41 a housing for the display device 30. Reference numeral 31 a denotes a mounting hole for mounting the main body case 31 to the mounting member 41.
[0011]
When assembling the acrylic plate 33 into the liquid crystal display device 30, the mounting bracket 35 is first fitted and fixed to the front surface of the main body case 31, and then the entire rear surface 34 b of the mounting frame 34 to which the acrylic plate 33 is fixed is mounted on the mounting bracket. Attached to the surface 35a of 35 using a double-sided tape or the like. As a result, the front surface of the liquid crystal display panel 32 is covered with the acrylic plate 33. The distance between the acrylic plate 33 and the liquid crystal display plate 32 is substantially constant over the whole, and the space SP between the two is kept airtight. Note that this attachment work must be performed in a clean room or the like so that dust does not adhere to the surface of the liquid crystal display panel 32, and sufficient care must be taken not to touch the liquid crystal display board 32 with a finger or the like.
[0012]
The liquid crystal display device 30 configured as described above is incorporated into the housing 21 of the AV apparatus in the next step. That is, with the liquid crystal display panel 32 facing forward, the liquid crystal display device 30 screwed to the mounting member 41 is inserted into the housing 21 from the front opening 21 a of the housing 21, and the mounting member 41 is mounted on the housing 21. It is fixed to an inner mounting portion (not shown). Next, the front panel 24 is attached to the housing 21 so as to cover the opening of the housing 21. At this time, the entire peripheral edge portion of the window portion 24a is brought into close contact with the surface of the acrylic plate 33, and the liquid crystal display plate 32, that is, the display screen of the display device 30 can be visually recognized through the acrylic plate 33 from the window portion 24a.
[0013]
As described above, since the space SP between the acrylic plate 33 and the liquid crystal display plate 32 is kept airtight, dust does not enter the space SP when the liquid crystal display device 30 is assembled. Therefore, it is not necessary to perform this work in a special environment such as a clean room. In addition, since the finger or the like does not touch the display board 32, the burden on the operator in the assembling work is reduced, and the work efficiency can be improved. Further, since the entire peripheral edge of the window 24 a of the front panel 24 is in close contact with the surface of the acrylic plate 33, dust does not enter between the front panel 24 and the acrylic plate 33.
[0014]
In the configuration of the above embodiment, the liquid crystal display device 30 constitutes a display, the acrylic plate 33 constitutes a protective plate, and the attachment frame 34 and the attachment bracket 35 constitute an attachment mechanism.
[0015]
The attachment mechanism of the acrylic plate is not limited to the attachment frame 34 and the attachment fitting 35 as described above, and other mechanisms may be used as long as the acrylic plate can be attached so that the space SP is sealed. Moreover, although the example which stuck the attachment frame 34 and the attachment metal fitting 35, and the attachment frame 34 and the acrylic board 33 with the double-sided tape was shown, respectively, you may make it adhere, for example with an adhesive agent or a bis | screw. Further, the protective plate is not limited to an acrylic plate as long as it is a transparent member. In the above, a display having a liquid crystal display panel is shown, but a display having a display panel other than liquid crystal may be used. Furthermore, the present invention can be similarly applied to an apparatus having a display other than the in-vehicle AV equipment.
[0016]
【The invention's effect】
According to the present invention, the protective plate that covers the display panel (for example, a liquid crystal display panel) is attached to the display device in advance so that the space between the two is sealed. Even if it is not performed in the special environment, dust does not adhere to the display board, and a finger or the like does not touch the display board. Therefore, the burden on the worker in the assembling work is reduced, and the working efficiency can be improved. In addition, a mounting bracket that is fixed to the periphery of the display plate of the display unit case and a mounting frame that is fixed to the periphery of the protective plate are provided so that the mounting frame is fixed to the mounting bracket. The space between the plates can be reliably sealed.
[Brief description of the drawings]
FIG. 1 is a front view showing an in-vehicle AV device according to an embodiment of the present invention.
2 is a cross-sectional view taken along line II-II in FIG.
3 is an enlarged view of a portion A in FIG. 2;
FIG. 4 is a side sectional view showing a conventional in-vehicle AV device.
[Explanation of symbols]
21 Housing 23 Cassette deck 24 Front panel 24a Window 30 Liquid crystal display device 31 Case main body 32 Liquid crystal display panel 33 Acrylic plate 34 Mounting frame 35 Mounting bracket SP Space

Claims (2)

A housing having an opening on the front surface;
A display case that has a main body case for holding a display plate on the front surface, and is inserted and fixed in the housing from the opening in a posture in which the display plate faces forward;
A transparent protective plate covering the display plate;
In a device having a window portion for visually recognizing the display plate through the protective plate, and a front panel covering the opening of the housing,
A mounting bracket that has a central opening, and is fitted into the display plate peripheral portion of the main body case so that the display plate is exposed from the central opening ;
With the peripheral edge of the protective plate fixed, the mounting frame fixed to the mounting bracket before the display is assembled in the housing,
The mounting frame is fixed to the mounting bracket so that a space between the display plate and the protective plate is sealed .   The apparatus according to claim 1, wherein the display panel is a liquid crystal display panel.

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