JP2004326013A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device at a low cost in which a large amount of data can be read and written and a storage device is easily attached and detached. <P>SOLUTION: The display device is provided with an almost box-shaped main body 34 for which a first opening part 35 is formed on a rear surface side, a liquid crystal display part 12 arranged on the front surface side of the main body 34, a substrate assembly 9 arranged inside the main body 34 for outputting image signals to the liquid crystal display part 12, a shield plate 42 covering the substrate assembly 9, and a hard disk driver 17 fixed to the shield plate 42 for reading and writing the data. The hard disk driver 17 is provided freely attachably and detachably through the first opening part 35. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, this type of display device is disclosed in, for example, Patent Document 1. According to Patent Document 1, a display device including a power supply unit 100, an image driving unit 200, a signal processing unit 300, and the like is disclosed.
[0003]
[Patent Document 1]
JP-A-2002-287109
[Problems to be solved by the invention]
However, the above-mentioned device has a first drawback in that a large amount of data cannot be read or written since it has no storage means. In order to solve this drawback, the present inventor has provided a hard disk driver in the main body. However, in order to remove the hard disk driver, it is necessary to remove about 30 bolts fixing the rear plate of the main body, and there is a second disadvantage that the operation is troublesome.
[0005]
Further, the present inventor has a third disadvantage that the cost is increased because a dedicated mounting base for mounting the hard disk driver is provided. Accordingly, the present invention provides a display device which can read and write a large amount of data, can easily attach and detach a storage device, and is inexpensive in consideration of such conventional disadvantages.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, according to the present invention, a substantially box-shaped main body having a first opening formed on a rear surface side, a liquid crystal display unit disposed on a front side of the main body, and the main body. A board assembly that outputs an image signal to the liquid crystal display unit, a shield plate that covers the board assembly, and a hard disk driver that is fixed to the shield plate and reads and writes data. It was provided detachably via the first opening.
[0007]
According to the second aspect of the present invention, a cover that covers the first opening is provided, and the cover is detachably provided to the main body.
[0008]
According to the third aspect of the present invention, a reinforcing plate is provided for contacting the inner surfaces of the main body facing each other, a mounting plate supported by the reinforcing plate is provided, and a circuit board constituting the board assembly is supported by the mounting plate. Was done.
[0009]
According to a fourth aspect of the present invention, a second opening is provided in the shield plate so as to be located below the hard disk driver, and a memory is fixed to the circuit board so as to be located below the second opening. The memory is provided detachably.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
First, the electrical configuration of the display device 1 according to the embodiment of the present invention will be described with reference to the electrical block diagram of FIG. In FIG. 1, a terminal 2 is a component that receives a signal from the outside, and includes, for example, a USB connector, an RJ45 connector, an RS232C connector, and the like. The terminal 2 is connected to, for example, one end of a LAN line (not shown), and the other end of the LAN line is connected to the Internet via a server (not shown).
[0011]
The signal processing unit 3 includes, for example, a CPU, a communication interface, an input unit, a signal conversion unit, and the like. When a predetermined input is made to the input unit, the CPU requests predetermined image information (for example, advertisement information) from a provider server (not shown) connected to the Internet.
[0012]
The image information is input to the signal processing unit 3 via the Internet, a server, a LAN line, and a terminal 2. The signal processing unit 3 converts the input image information into image data (digital values of R, G, B) according to the image size (for example, 29 inches) of a liquid crystal panel (described later), and sends the data to the transmitter 5. Output data.
[0013]
The transmitter 5 converts the input image data into an image signal, that is, a low-level differential transmission signal LVDS (Low Voltage Differential Signal), and outputs the image signal to the drive unit 6.
[0014]
The DC-DC converter 7 is a component that outputs predetermined DC voltages (for example, 12 V, 5 V, and 3.3 V) when a DC voltage (for example, 14 V) is input. In this manner, the DC-DC converter 7 outputs a predetermined voltage to the signal processing unit 3, the transmitter 5, and the driving unit 6, respectively. The RAM 3a is connected to the signal processing unit 3.
[0015]
The terminal 2, the signal processing unit 3, the transmitter 5, the DC-DC converter 7, and the RAM 3a are fixed on each wiring pattern provided on the circuit board 8 via solder or the like. A board assembly 9 is composed of these terminals 2, the signal processing unit 3, the transmitter 5, the DC-DC converter 7, the RAM 3a, the circuit board 8, and the like.
[0016]
The liquid crystal panel 4 is made of, for example, a liquid crystal sealed in two glass plates. A plurality of source electrodes and a plurality of gate electrodes are formed in a matrix on the surface of the lower glass plate, and each TFT is formed for each pixel.
[0017]
The drive unit 6 includes, for example, a saw driver and a gate driver. The source driver is connected to the plurality of source electrodes. The gate driver is connected to the plurality of gate electrodes. As described above, the drive unit 6 drives each source electrode and each gate electrode provided on the liquid crystal panel 4.
[0018]
The backlight 10 illuminates the liquid crystal panel 4. The inverter 11 drives the backlight 10. A liquid crystal display unit 12 includes the liquid crystal panel 4, the driving unit 6, the backlight 10, the inverter 11, and the like.
[0019]
As described above, the substrate assembly 9 outputs the image signal LVDS to the liquid crystal display unit 12.
[0020]
The output side of the plug 13 is connected to a first power supply unit 15 and a second power supply unit 16 via a connector board 14. Each of the first power supply unit 15 and the second power supply unit 16 includes a transformer, a rectifier circuit, and the like, and supplies a DC voltage having a predetermined voltage.
[0021]
That is, the first power supply unit 15 supplies a predetermined power to the backlight 10 of the liquid crystal display unit 12. The second power supply unit 16 supplies a predetermined power to the drive unit 6 of the liquid crystal display unit 12 via the DC-DC converter 7.
[0022]
The hard disk driver 17 can read and write data, and has a large storage capacity. The hard disk driver 17 is connected to the signal processing unit 3.
[0023]
The memory 18 is, for example, a flash memory, and is connected to the signal processing unit 3. The electrical configuration of the display device 1 is made up of the above components.
[0024]
Next, a mechanical configuration of the display device 1 will be described with reference to FIGS. 2 is an exploded perspective view of the display device 1, FIG. 3 is a perspective view of the display device 1 when a rear plate is removed, and FIG. 4 is a cross-sectional view taken along line A1-A2 of FIG.
[0025]
In these figures, the frame 19 is made of, for example, a stainless steel plate, is formed in a substantially frame shape when viewed from a plane, and is formed in a shape in which the front side and the back side are open. A plurality of bent portions are formed at appropriate positions on the rear surface side C of the frame 19.
[0026]
Each of the reinforcing plates 20, 21, 22 is made of, for example, an extruded material of aluminum, and is formed in a substantially rectangular parallelepiped shape when viewed from a plane.
[0027]
One end surface of each of the reinforcing plates 20, 21, 22 is in contact with the inner surface of the frame 19. The other end face of each of the reinforcing plates 20, 21, and 22 also contacts the inner surface of the frame 19. In this manner, the reinforcing plates 20, 21, 22 abut against the opposing inner surfaces of the frame 19 and are fixed by bolts or the like.
[0028]
The cooling fan 23 includes, for example, a fan, a fan casing, a motor, and the like. The left end of the cooling fan 23 is fixed to the reinforcing plate 20 by bolts.
[0029]
The cooling fan 24 includes, for example, a fan, a fan casing, a motor, and the like. The right end of the cooling fan 24 is fixed to the reinforcing plate 21 by bolts.
[0030]
The mounting plate 25 is made of, for example, a metal plate or the like. The left end is fixed to the reinforcing plate 20 via a fixing plate 26, and the right end is fixed to the reinforcing plate 21 via a fixing plate 27. In this manner, the mounting plate 25 is supported by the reinforcing plates 20 and 21.
[0031]
The second power supply unit 16 is attached to the fixing plate 28. The first power supply unit 15 is attached to the fixing plate 29.
[0032]
The liquid crystal display unit 12 includes, for example, a liquid crystal panel 4 of 29 inches, a plurality of backlights 10 and the like, and has a substantially rectangular parallelepiped outer shape. The liquid crystal display unit 12 is fixed to the inner surface of the frame 19 by bolts or the like. A transparent plate 30 is disposed on the front side B of the liquid crystal display unit 12 via a packing.
[0033]
The casing 31 is made of, for example, a metal plate or the like, and is formed in a box shape with a bottom. An opening 32 is formed on the front side B of the casing 31. Through the opening 32, the transparent plate 30 and the liquid crystal display unit 12 are configured to be visible from the front to the user.
[0034]
A hole is formed in a side surface of the casing 31, and a bolt passes through the hole, is provided in the frame 19, and is fixed to the threaded hole. The casing 31 is provided so as to cover the frame 19 and the liquid crystal display unit 12.
[0035]
The rear plate 33 is made of, for example, a metal plate or the like, and is formed so as to cover the rear surface side C of the frame 19. A bolt (not shown) passes through a hole formed in the rear plate 33 and is fixed to a hole located at a bent portion of the frame 19.
[0036]
In this way, the rear plate 33 is fixed to the open rear side C of the casing 31. The main body 34 is composed of the frame 19, the rear plate 33, the casing 31, and the like.
[0037]
As described above, the liquid crystal display unit 12 is disposed on the front side B of the main body 34, and the board assembly 9 is disposed inside the main body 34.
[0038]
Next, the features of the display device 1 will be described with reference to FIGS. In these figures, a first opening 35 is formed at an appropriate position on the rear plate 33.
[0039]
The main body 34 includes the frame 19, the casing 31, and the rear plate 33. An opening 32 is formed on the front side B of the casing 31. That is, the main body 34 has a first opening 35 formed on the rear surface side C, and is substantially box-shaped.
[0040]
Around the first opening 35 of the rear plate 33, flanges 36, 37, 38 are formed. The cover 39 is made of, for example, a metal plate and has a stepped shape. The stepped portion of the cover 39 (near the front end) abuts on the inner surface of the rear plate 33, and the cover 39 is placed on the flanges 36, 37, 38. Two bolts (not shown) pass through holes formed in the cover 39 and are fixed to holes formed in the flange 38.
[0041]
That is, the cover 39 that covers the first opening 35 of the rear plate 33 is provided. The cover 39 is provided detachably with respect to the main body 34.
[0042]
Reinforcing plates 20 and 21 are provided so as to abut on opposing inner surfaces of the main body 34 (specifically, opposing inner surfaces of the frame 19). The mounting plate 25 is supported by the reinforcing plates 20 and 21.
[0043]
The circuit board 8 constituting the board assembly 9 is supported (fixed) by the mounting plate 25 via spacers 40 and 41 (see FIG. 4).
[0044]
The shield plate 42 is made of, for example, a plate material that shields electromagnetic waves, and is formed in a substantially box shape. As described above, the shield plate 42 is attached to the circuit board 8 or the attachment plate 25 so as to cover the board assembly 9.
[0045]
The hard disk driver 17 has, for example, a casing made of a metal plate formed on the outside. The casing has three flanges, and each flange has a hole (see FIG. 3).
[0046]
The hard disk driver 17 is mounted on the shield plate 42 at a designated position. The three bolts pass through the holes formed in the hard disk driver 17 and are fixed to the holes formed in the shield plate 42 (see FIG. 3).
[0047]
When removing the hard disk driver 17, the two bolts fixing the cover 39 are removed, and the cover 39 is removed. Then, the three bolts fixing the hard disk driver 17 are removed, and the hard disk driver 17 can be removed.
[0048]
As described above, in the display device 1, the hard disk driver 17 can be removed by removing the cover 39 without removing the rear plate 33 entirely. That is, the hard disk driver 17 is detachably provided through the first opening 35 formed in the main body 34.
[0049]
A second opening 43 is formed in a portion of the shield plate 42 below the hard disk driver 17 (see FIG. 2). The memory 18 is fixed on the circuit board 8 so as to be located below the second opening 43.
[0050]
To remove the memory 18, first, the cover 39 is removed, and the hard disk driver 17 is removed. Next, the memory 18 can be removed from the circuit board 8. When the memory 18 is to be mounted, the memory 18 is first mounted on the circuit board 8. Next, the hard disk driver 17 may be mounted on the shield plate 42 and the cover 39 may be mounted on the main body 34.
[0051]
In this manner, the memory 18 is detachably provided by fixing the memory 18 on the circuit board 8 so as to be located below the second opening 43 of the shield plate 42.
[0052]
【The invention's effect】
According to the first aspect of the present invention, a substantially box-shaped main body having a first opening formed on a rear surface side, a liquid crystal display section disposed on a front side of the main body, and the liquid crystal display disposed in the main body. A substrate assembly that outputs an image signal to the unit, a shield plate that covers the substrate assembly, and a hard disk driver that is fixed to the shield plate and reads and writes data, and the hard disk driver passes through the first opening. , Provided detachably. By providing a hard disk driver in the main body in this way, a large amount of data can be read and written, a large amount of image information can be captured via the Internet, for example, and a large amount of image information can be displayed. In addition, when removing the hard disk driver, it is sufficient to remove the hard disk driver through a partial small window (first opening) formed in the main body, and the attaching / detaching operation is easy. Further, since the hard disk driver is fixed on the shield plate, it is not necessary to newly provide a mounting base, and the cost can be reduced.
[0053]
According to the second aspect of the present invention, a cover that covers the first opening is provided, and the cover is detachably provided to the main body. By providing the cover in this way, it is sufficient to work through a partial small window (first opening), and the work of attaching and detaching the hard disk driver is further facilitated.
[0054]
According to the third aspect of the present invention, a reinforcing plate is provided for contacting the inner surfaces of the main body facing each other, a mounting plate supported by the reinforcing plate is provided, and a circuit board constituting the board assembly is supported by the mounting plate. Was done. With the above configuration, the reinforcing plate improves the strength of the main body and supports the circuit board via the mounting plate, so that the circuit board is securely fixed. As a result, the reliability of the quality is improved without rattling of the electrical components on the circuit board.
[0055]
According to a fourth aspect of the present invention, a second opening is provided in the shield plate so as to be located below the hard disk driver, and a memory is fixed to the circuit board so as to be located below the second opening. The memory is provided detachably. With the above configuration, the work of attaching and detaching the memory becomes easy. Further, the memory is fixed on the circuit board, and the second opening formed in the shield plate is closed by the hard disk driver, so that the shielding property can be maintained.
[Brief description of the drawings]
FIG. 1 is an electric block diagram of a display device 1 according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the display device 1.
FIG. 3 is a perspective view of the display device 1 when a rear plate 33 is removed.
FIG. 4 is a sectional view taken along line A1-A2 of FIG. 2;
[Explanation of symbols]
9 Board Assembly 12 Liquid Crystal Display 17 Hard Disk Driver 34 Main Body 35 First Opening 42 Shield Plate

Claims (4)

A substantially box-shaped main body having a first opening formed on a rear surface side, a liquid crystal display section disposed on a front side of the main body, and a substrate disposed in the main body and outputting an image signal to the liquid crystal display section An assembly, a shield plate covering the board assembly, and a hard disk driver fixed to the shield plate for reading and writing data, wherein the hard disk driver is detachably provided through the first opening. A display device characterized by the above-mentioned. The display device according to claim 1, wherein a cover is provided to cover the first opening, and the cover is detachably attached to the main body. A reinforcing plate abutting on opposite inner surfaces of the main body is provided, a mounting plate supported by the reinforcing plate is provided, and a circuit board constituting the board assembly is supported by the mounting plate. Item 1. The display device according to Item 1. A second opening is provided in the shield plate so as to be located below the hard disk driver, and a memory is fixed to the circuit board so as to be located below the second opening, and the memory is detachably attached. The display device according to claim 3, wherein the display device is provided.

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