WO2012014318A1

WO2012014318A1 - Display device

Info

Publication number: WO2012014318A1
Application number: PCT/JP2010/062916
Authority: WO
Inventors: 義仁望月; 璽民陳
Original assignee: Ｎｅｃディスプレイソリューションズ株式会社
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2012-02-02
Also published as: JPWO2012014318A1; JP5536215B2

Abstract

A liquid crystal display device (1) has a liquid crystal display panel (3) fitted in a frame section (8) which is provided on the four sides of a bracket metal plate (2). An LED light source is integrally provided on one end portion of the liquid crystal display panel (3), the rear surface of the panel is supported by a receiving section (9) which is provided on the frame section (8b), the front surface of the panel is pressed and sandwiched using the locking section of a substantially L-shaped bracket holder (13), and the main body section of the bracket holder (13) is fixed to the frame section (8b) of the bracket metal plate (2) with a bolt (16). The other end surface of the liquid crystal display panel (3) is directly fixed with a bolt (16) to a frame section (8a) which is provided on the other short side of the bracket metal plate (2). The liquid crystal display device (1) can be firmly fixed with the bolts without interference, even if a component, such as the light source, is integrally provided on one side of the liquid crystal display panel (3).

Description

Display device

The present invention relates to a display device in which a display panel such as a liquid crystal display panel is fixed to a bracket metal plate.

In recent years, liquid crystal display devices using a liquid crystal display panel have been made thinner and smaller. On the other hand, it is required to make the liquid crystal screen as large as possible. Therefore, the mounting space for attaching the liquid crystal display panel to the bracket metal plate and fixing it with bolts or the like has been limited to a narrow frame-like frame portion provided along the four sides of the liquid crystal display panel.
For example, in the liquid crystal display device described in Patent Document 1, the four peripheral ends forming the four sides of a curved liquid crystal display panel are sandwiched between a rectangular frame-like upper frame and lower frame, and bolts are inserted between the upper and lower frames with nuts. A connecting structure is adopted.
However, such a configuration has a poor appearance because the bolt head is exposed on the surface-side frame of the liquid crystal display device, and it is necessary to provide another decorative member for covering the bolt head. Moreover, in order to secure the display surface of the liquid crystal display device as large as possible and to reduce the size of the device, it is difficult to secure a space for fastening bolts on the surfaces of the upper and lower frames.

In addition, as another liquid crystal display device, a metal bracket sheet metal attached to the back surface of the liquid crystal display panel is formed by bending a frame portion on four sides, and the liquid crystal display panel is fitted and fixed in these frame portions. is there. This liquid crystal display panel is formed in a substantially rectangular plate shape whose upper and lower parts are long sides and both side parts are short sides, and both side parts of the liquid crystal display panel are passed through bolt holes provided in frame parts on opposite side parts of the bracket sheet metal. A structure is employed in which a liquid crystal display panel is fixed to a bracket sheet metal by screwing a bolt into a screw hole provided on an end face in the thickness direction.
With this structure, a space for fastening bolts is not provided in the frame on the liquid crystal screen side, so that the liquid crystal display device can be made smaller and larger.

JP 2010-39441 A

By the way, when the backlight unit of the above-described liquid crystal display device adopts a side lamp type (side edge type) structure, when the light source such as an LED is built in the lower side of the liquid crystal display panel, As described above, the bolts can be directly fastened to the end faces of both sides of the liquid crystal display panel, so that the bracket plate can be fixed integrally. However, in a structure in which a light source such as an LED is arranged and built in one side of the liquid crystal display panel, a configuration in which the bolt is screwed to the end face of the side is adopted because the bolt interferes with the light source. I could not.
For this reason, this type of conventional liquid crystal display device has been proposed to employ a structure in which the front cover and the rear cover are fitted with the liquid crystal display panel sandwiched therebetween, but this configuration cannot be firmly fixed, and the device There is a drawback that it is impossible to achieve downsizing and large screen. In particular, when the front cover and the rear cover are made of plastic, the fitting strength is low, and if any of the covers is removed, the liquid crystal display panel may be detached and separated.

In view of such problems, the display device according to the present invention is a display device that can be firmly fixed without interfering with these components even if components such as a light source are incorporated in the side portion of the display panel. The purpose is to provide.

The display device according to the present invention is a display device in which a display panel is attached to a bracket metal plate, and a holder having a locking portion that presses and locks at least one end of the display panel to the bracket metal plate is provided on a side portion of the bracket metal plate. It is characterized by being fixed with bolts to the frame portion provided in the.
According to the display device of the present invention, when the display panel is fixed to the bracket sheet metal, the holder is fixed to the frame of the bracket sheet metal with the bolt while the display panel is pressed against the bracket sheet metal by the holding portion of the holder. By doing so, the display panel can be fixed to the bracket sheet metal. At this time, since the bolt is not screwed directly into the end portion of the display panel, it can be fixed without interfering with the bolt even if various components such as a light source are incorporated in the end portion of the display panel.

Further, an LED may be incorporated as a light source at one end portion to which the display panel holder is attached.
By fixing the holder to the frame portion of the bracket sheet metal with the bolt, the display panel can be fixed to the bracket sheet metal with the holder without screwing the bolt into the end portion of the display panel incorporating the light source made of LED.

The bracket sheet metal may be provided with a receiving portion for receiving the back surface of the display panel, and the display panel may be sandwiched between the receiving portion and the locking portion of the holder.
If such a structure is employ | adopted, a display panel can be press-clamped and fixed by the receiving part of a bracket sheet metal, and the latching | locking part of a holder. Therefore, even if various parts such as a light source are built in one side end of the display panel, they do not interfere with the bolt.

In addition, the bracket metal plate receiving portion may be provided in the vicinity of the bolt, and the locking portion that presses the display panel and the receiving portion are firmly fixed by the bolt that fixes the holder in the vicinity of the receiving portion that supports the back surface of the display panel. The display panel can be fixed to the display panel to prevent the display panel from rattling.

In addition, one side edge of the display panel is fixed with a bolt through one frame part of the bracket sheet metal and a holder, and the other opposite side edge part is fixed with another frame part of the bracket sheet metal with a bolt. Good.
As a result, the side end portion of the display panel that contains components such as the light source is fixed to the frame portion with bolts through the holder, and the other side end portion that opposes this does not contain components such as the light source. It can be fixed directly to the frame of the bracket sheet metal with bolts.

As described above, according to the display device of the present invention, the holder can be bolted to the bracket sheet metal by pressing the display panel with the holder locking portion, so that the bolt does not interfere with the end of the display panel. The display panel can be firmly fixed to the bracket sheet metal via
In addition, the display device according to the present invention can be fixed with bolts without causing interference with components even if various components such as an LED light source are incorporated in an end portion where the display panel is fixed with a holder.

1 is a partially exploded perspective view showing a liquid crystal display device according to a first embodiment of the present invention. It is a disassembled perspective view of the liquid crystal display device shown in FIG. It is the A section enlarged view in FIG. It is the B section enlarged view in FIG. It is a partially broken enlarged view which shows the connection structure of the side edge part of a liquid crystal display device. FIG. 6 is a cutaway perspective view showing a connection structure between a frame portion of a bracket sheet metal and a bracket holder at an end portion of the liquid crystal display device shown in FIG. 5.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
A liquid crystal display device according to a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the liquid crystal display device 1 is obtained by integrally fixing a liquid crystal display panel 3 as a display panel to a bracket metal plate 2. The liquid crystal display panel 3 has, for example, a substantially rectangular plate shape, and a plurality of LEDs are built in an arrayed state as a light source at one side end of the short side. The liquid crystal display panel 3 has a side lamp type (side edge type) backlight structure provided with a light source and a light guide plate, but is omitted in the drawing.
In the liquid crystal display panel 3, a narrow frame 5 is fixed to the end of the four circumferences of a substantially rectangular liquid crystal display panel 4. An operation button 6 is provided in the vicinity of one corner of the lower side of the frame 5.

The bracket metal plate 2 is made of metal and has a substantially rectangular plate shape like the liquid crystal display panel 3. A frame portion 8 that is bent substantially vertically and stands up is formed at each end portion that forms the four sides of the bracket metal plate 2, and the liquid crystal display panel 3 is fitted into the frame portion 8 that forms the four sides. As shown in FIGS. 3 and 4, a pair of

opposing frame portions

8a and 8b formed on both sides of the short side of the frame portion 8 on the four sides and a frame portion 8c formed on the lower portion of the long side, A plurality of receiving portions 9 are formed at predetermined intervals by bending inwardly a portion that is cut in a substantially inverted U shape. In addition, you may form the receiving part 9 also in the frame part of the upper part of a long side.

The receiving portion 9 supports the back surface of the liquid crystal display panel 3 fitted in the frame portion 8 of the bracket metal plate 2, and can be prevented from rattling of the liquid crystal display panel 3 especially by being provided near each corner portion. Further, on one of the opposing short side frame portions 8b,

female screw portions

11 and 11 are formed by cutting an appropriate number (two in the figure) of female screws for bolt screwing. Further, an appropriate number (two in the figure) of

bolt insertion holes

10 and 10 are formed in the other frame portion 8a.
The bolt insertion holes 10 and the female screw portions 11 are preferably provided in the vicinity of the upper and lower corners of the

frame portions

8a and 8b, respectively, but may be provided at other positions. The number of the bolt insertion holes 10 and the female screw portions 11 is as follows. Is optional.
As shown in FIGS. 3 and 4, the frame portion 8b on one short side of the bracket metal plate 2 has a substantially L-shaped cross section adjacent to the upper side of the female screw portion 11 provided in the vicinity of each corner portion. A hook 12 is formed to protrude outward, and a tapered portion 12 a is formed at the free end of the hook 12.

In a state where the liquid crystal display panel 3 is fitted in the frame portion 8 of the bracket metal plate 2 and supported by the receiving portions 9, the short side of the liquid crystal display panel 3 facing the other frame portion 8a of the bracket metal plate 2 is provided. On the thickness direction end surface 3a, screw holes (not shown) are formed at positions facing the bolt insertion holes 10 and 10 of the frame portion 8a.
In FIG. 1 and FIG. 2, the liquid crystal display panel 3 supported by the receiving portion 9 in the vicinity of each corner adjacent to the receiving portion 9 is placed on the surface side of one frame portion 8 b on the short side of the bracket metal plate 2. Bracket holders 13 having a substantially L-shaped cross section for being pressed and locked are attached respectively. As shown in FIGS. 3 to 6, the bracket holder 13 is formed by bending a locking portion 13 a for pressing the frame 5 of the liquid crystal display panel 3 against the receiving portion 9 side and a main body portion 13 b at a substantially right angle. The main body 13b has a window 15 for receiving and locking the hook 12 provided on the frame 8b of the bracket metal plate 2, and a bolt insertion hole for screwing the bolt 16 into the female screw hole 11 provided in the frame 8b. 17 are formed.
The frame 8b of the bracket metal plate 2 is formed with locking

pins

19 and 19 projecting on both sides in order to position the bracket holder 13 that fixes the bracket metal plate 2 and the liquid crystal display panel 3.

The liquid crystal display device 1 according to the present embodiment has the above-described configuration, and the assembly method will be described next.
First, in FIG. 2, the liquid crystal display panel 3 is fitted into the frame portion 8 formed on the four sides of the bracket metal plate 2. At the time of fitting, it is attached so that the side end portion in which the LED of the liquid crystal display panel 3 is incorporated is positioned on the side of the one frame portion 8b. The liquid crystal display panel 3 fitted in the frame part 8 of the bracket metal plate 2 is loosely supported by the receiving parts 9 provided at the three

frame parts

8a, 8b, 8c provided at least on both sides and the lower part. It is held without.

In this state, the

bolts

16, 16 are inserted through the bolt insertion holes 10, 10 provided in the other frame portion 8 a of the bracket sheet metal 2, and are formed on the end surface in the thickness direction of the other side end portion of the liquid crystal display panel 3. Fix by screwing into the screw holes that do not. This fixing structure is the same as that according to the prior art described above.
Next, in the frame portion 8b facing the frame portion 8a of the bracket metal plate 2, the locking portion 13a of the bracket holder 13 is pressed against the frame 5 of the liquid crystal display panel 3 as shown in FIGS. The hook 12 is fitted into the window portion 15 of 13b, and the bolt insertion hole 17 is overlapped with the female screw portion 11 so as to coincide with each other.

Then, the bolt 16 with the washer 18 is inserted into the bolt insertion hole 17 of the bracket holder 13 and screwed into the female screw portion 11 provided in the frame portion 8b to fix the bracket holder 13 to the frame portion 8b. Thereby, the liquid crystal display panel 3 is pressed from both sides by the receiving portion 9 of the frame portion 8 b and the locking portion 13 a of the bracket holder 13 and is fixed integrally with the bracket sheet metal 2. Since the female screw portion 11 into which the bolt 16 is screwed is provided on the back surface side of the receiving portion 9 of the frame portion 8b, the bolt 16 entering the frame portion 8b does not interfere with the liquid crystal display panel 3.
At this time, since the liquid crystal display panel 3 is placed on the receiving portions 9 provided on the frame portions 8 of the bracket metal plate 2, and the receiving portions 9 are provided in the vicinity of each corner of the liquid crystal display device 1, the liquid crystal display panel 3 is firmly fixed without rattling. To the bracket metal plate 2. Moreover, since the vicinity of the button 6 of the liquid crystal display panel 3 is supported by the receiving portion 9, even if the button 6 is repeatedly pressed and operated, it can be stably fixed without rattling.

As described above, in the liquid crystal display device 1 according to the present embodiment, at one side end, the liquid crystal display panel 3 is pressed against the receiving portion 9 by the engaging portion 13a of the bracket holder 13 and held between the bracket holder 13 and the bracket holder 13. Is fixed to the bracket metal plate 2 with a bolt 16, and at the other side end, the bolt 16 is directly screwed into the screw hole on the end surface of the liquid crystal display panel 3 from the bolt insertion hole 10 of the frame portion 8 a of the bracket metal plate 2. The liquid crystal display panel 3 can be fixed to the bracket metal plate 2.
Moreover, in one frame portion 8 b of the bracket metal plate 2, the bolt 16 that has passed through the bolt insertion hole 17 of the bracket holder 13 is screwed into the female screw portion 11 on the back side of the receiving portion 9 that supports the liquid crystal display panel 3. The liquid crystal display panel 3 can be firmly fixed to the bracket sheet metal 2 without interfering with the LED built in one side end of the liquid crystal display panel 3.
Further, since the receiving portions 9 are provided in the vicinity of the corners of the liquid crystal display device 1, the liquid crystal display panel 3 does not rattle in a state where the liquid crystal display panel 3 is fixed to the bracket metal plate 2. Similarly, since the liquid crystal display device 1 is provided with the receiving portion 9 in the vicinity of the button 6, the liquid crystal display panel 3 can be firmly fixed and held without rattling even if the pressing operation of the button 6 is repeated.

Further, when the liquid crystal display device 1 is assembled, not only the locking portion 13a of the bracket holder 13 is brought into contact with the liquid crystal display panel 3, but also the window portion 15 is engaged with the hook 12 of the frame portion 8b of the bracket metal plate 2. Since it can be called and temporarily fixed, when the bolt 16 is tightened into the frame portion 8b through the bolt insertion hole 17 of the bracket holder 13, the bracket holder 13 can be easily and surely assembled without fear of dropping accidentally.

The display device according to the present invention is not limited to the liquid crystal display device 1 in which the liquid crystal display panel 3 is fixed to the bracket metal plate 2, and can be applied to a display device in which various display panels are fixed to the bracket metal plate 2.
Further, in the above-described embodiment, the liquid crystal display device 1 in which the liquid crystal display panel 3 including a light source such as an LED is assembled and fixed to the bracket metal plate 2 at the side end on the frame portion 8b side has been described. The components are not limited to light sources such as LEDs, and can be assembled and fixed so that the fastening bolts 16 do not interfere with various components other than the light sources.

In the above-described embodiment, one side end portion of the liquid crystal display panel 3 is directly fixed by the one frame portion 8a of the bracket metal plate 2 and the bolt 16, and the other opposite side end portion is interposed via the bracket holder 13. Although the liquid crystal display device 1 indirectly fixed to the other frame portion 8b has been described, instead of this configuration, the opposite side edges of the liquid crystal display panel 3 are respectively connected to the bracket sheet metal 2 via the bracket holders 13. You may make it fix with each volt | bolt

part

8a, 8b with the volt | bolt 16. FIG.
The preferred embodiments and modifications of the present invention have been described above, but the present invention is not limited to the above-described embodiments and modifications. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the scope of the appended claims.

The present invention can fix a bracket sheet metal and a display panel integrally with a bolt without interfering with these parts when fixing a display panel in which a light source such as an LED or other various parts are built in a side end to the bracket sheet metal. Provided is a display device.

DESCRIPTION OF SYMBOLS 1 Liquid crystal display device 2 Bracket sheet metal 3 Liquid

crystal display panels

8, 8a, 8b, 8c Frame part 9 Receiving

part

10, 17 Bolt insertion hole 11 Female thread part 12 Hook 13 Bracket holder 13a Locking part 15 Window part 16 Bolt

Claims

In a display device in which a display panel is attached to a bracket metal plate,
A display device, wherein a holder having a locking portion for pressing and locking at least one end of the display panel to the bracket sheet metal is fixed to the bracket sheet metal with a bolt.
The display device according to claim 1, wherein an LED is built in the one end portion to which the holder of the display panel is attached.
The display device according to claim 1, wherein the bracket sheet metal is provided with a receiving portion that receives a back surface of the display panel, and the display panel is sandwiched between the receiving portion and the locking portion of the holder.
The display device according to claim 3, wherein the bracket metal plate receiving portion is provided in the vicinity of the bolt.
One side end portion of the display panel is fixed with a bolt through one frame portion of the bracket sheet metal and the holder, and the other opposite side end portion is fixed with another frame portion of the bracket sheet metal with bolts. The display device according to any one of claims 1 to 4.