JP4799656B2 - Display device - Google Patents

Description

  The present invention relates to a display device having a flat panel structure such as a liquid crystal display or a plasma display.

  2. Description of the Related Art Conventionally, as a display device having a flat panel structure such as a liquid crystal display or a plasma display, a display device including a chassis member on the back side of the display panel is known (see, for example, Patent Document 1). The chassis member of the display device disclosed in this publication includes a base plate in which three base metal plates are arranged on the back surface side of the display panel, and a frame-shaped metal plate that is stacked to join these three base metal plates. , And a plurality of angles superimposed on the frame-shaped metal plate to reinforce the horizontal and vertical strength of the base plate. Hanging brackets for suspending and transporting the display device are attached to the upper ends of the three angles extending in the vertical direction among the plurality of angles.

JP 2007-199705 A ([0038] paragraph, FIG. 8)

  Usually, this type of flat display device includes a circuit board on which a plurality of electronic components are mounted on the back side of the display panel. For this reason, like the chassis member disclosed in the above publication, when a plurality of metal members are arranged in the thickness direction of the device, if the circuit board is further stacked on the chassis member, the display device becomes thicker. End up. Moreover, a display apparatus will become heavy by stacking a some metal member and comprising a chassis member.

  An object of the present invention is to provide a display device that can be reduced in weight and thickness.

To achieve the above object, a display device of the present invention is mounted on a display panel, a horizontal frame extending in the width direction along the back surface of the display panel, and fixed to the display panel, and a circuit board. The circuit board is extended and bent from the edge of the horizontal frame toward the display panel so that the circuit board is held close to the display panel until the electronic component does not contact the display panel, and the tip of the circuit board is bent. And a plurality of support pieces for supporting and fixing to the edge of the surface on the display panel side.

The display device of the present invention includes a display panel, a vertical frame that extends vertically along the back of the display panel, and is fixed to the display panel, and an electronic component mounted on a circuit board. The circuit board is extended and bent from the edge of the vertical frame toward the display panel so that the circuit board is held close to the display panel until it is not in contact with the panel. And a plurality of support pieces for supporting and fixing to the edge of the surface.

  According to the above invention, since the circuit board is supported and fixed using the plurality of support pieces extending from the edge of the horizontal frame or the vertical frame, the circuit board does not overlap the frame and is mounted on the circuit board. The plurality of electronic components do not interfere with the frame, and the thickness of the display device can be reduced correspondingly.

  Since the display device of the present invention has the above-described configuration and operation, it can be reduced in weight and thickness.

FIG. 1 is an external perspective view of a display device according to an embodiment of the present invention. FIG. 2 is a rear perspective view showing a state in which the rear panel of the display device of FIG. 1 is removed. FIG. 3 is a rear view showing an assembly in which a subframe is attached to the frame of FIG. FIG. 4 is a rear view of the display device in a state where the assembly of FIG. 3 is attached to the rear side of the display panel. FIG. 5 is a cross-sectional view of the display device taken along line VV in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external perspective view of a display device 100 according to an embodiment of the present invention, that is, a flat display device 100 such as a liquid crystal display or a plasma display, viewed from the right front side. FIG. 2 is an external perspective view of the display device 100 with the rear cover removed, as viewed obliquely from the left rear.

  As shown in FIG. 1 and FIG. 2, the display device 100 includes a flat rectangular display panel 102 having a display surface 101 on the front side, and a frame-shaped front cover 104 that covers the front peripheral edge of the display panel 102. The frame 10 fixed to the back side of the display panel 102, the support stand 110 fixed to the lower end of the frame 10 and the back side of the display panel 102 so as to cover the fixed part of the frame 10 and the support stand 110 And a rear cover (not shown).

  The frame 10 of the present embodiment is separated from each other in the width direction of the display device 100 by two vertical frames 12 and 14 extending in the vertical direction, and the display device 100 is spaced from each other in the vertical direction by the width direction. It has a structure in which two horizontal frames 16 and 18 extending in the shape of a cross are combined.

  Each of the frames 12, 14, 16, and 18 has a rib formed by punching and bending a single band-shaped metal plate and bending both edges along the longitudinal direction thereof at a substantially right angle. In this way, the bending strength of each frame is enhanced by providing ribs extending in the longitudinal direction at both ends in the width direction of each frame 12, 14, 16, and 18.

  The two horizontal frames 16 and 18 are fixed to the back plate of the display panel 102 by screwing the left and right ends thereof to the back surface of the display panel 102. Further, the two vertical frames 12 and 14 arranged so as to span the two horizontal frames 16 and 18 are fixed to the front cover 104 by screwing the upper and lower ends to the back side of the front cover 104. The The two vertical frames 12 and 14 and the two horizontal frames 16 and 18 are fixed to the back plate of the display panel 102 with screws at four places where they overlap each other.

  Further, four wall-hanging fixtures 20 (hereinafter simply referred to as fixtures 20) for attaching the display device 100 to the wall are attached to the middle portions of the two vertical frames 12 and 14. The height of each holding device 20 is designed so that the frame 10 is covered and only the four holding devices 20 are exposed on the back surface of the display device 100 with a rear cover (not shown) attached.

  Note that the pitch of the two vertical frames 12 and 14 is determined so that the layout of the four holding devices 20 matches the mounting holes (not shown) on the wall side. On the other hand, the pitch in the vertical direction of the four holding devices 20 can be arbitrarily changed by changing the mounting position with respect to the corresponding vertical frames 12 and 14 in the vertical direction. Further, the vertical pitch and the mounting position of the horizontal frames 16 and 18 can be arbitrarily changed. The interval between the vertical frames 12 and 14 may be arbitrarily determined from the horizontal width of the display panel. However, by setting the interval according to a pitch called a VESA pitch, the wall-side mounting bracket can be generalized, which is convenient.

  The left and right stand assemblies 112 and 114 of the support stand 110 are fixed to the lower ends of the two vertical frames 12 and 14, respectively. The support stand 110 of the present embodiment is a substantially T-shaped 2 in which a second member is erected in the middle of a first member (not shown) extending in parallel with the mounting table 120 on which the display device 100 is mounted. One stand assembly 112, 114, and a stand cover 116 that passes through the second member of each stand assembly 112, 114 to cover the first member and to fix the first member. That is, the pitch of the two left and right stand assemblies 112 and 114 is also adjusted to the pitch of the two vertical frames 12 and 14.

  FIG. 3 is a rear view of the assembly in which the frame-shaped subframe 30 is attached to the frame 10 as viewed from the rear side of the display device 100. As described above, the assemblies 10 and 30 are attached to the back side of the display panel 102 (see FIG. 4). However, in FIG. 3, the structures other than the assemblies 10 and 30 are illustrated for clarity of illustration. Is omitted.

  The sub-frame 30 includes one vertical frame 31 extending in the vertical direction of the display device 100, a horizontal frame 32 in which the left end in the figure is connected to the upper end of the vertical frame 31, and the left end in the figure at the lower end of the vertical frame 31. The horizontal frame 33 is connected. That is, the sub-frame 30 has a shape in which a U-shape is reversed left and right. And the right end part in the figure of the two horizontal frames 32 and 33 spaced apart up and down is connected to the vertical frame 12 on the left side in the figure of the frame 10.

  The four corner connecting portions of the sub-frame 30, that is, both ends of the two horizontal frames 32 and 33 are fixed to the back plate of the display panel 102 with screws in the same manner as the horizontal frames 16 and 18 of the frame 10 described above. That is, the upper end of the vertical frame 31 and the left end of the upper horizontal frame 32 are fixed to the display panel 102 by a single screw, and the lower end of the vertical frame 31 and the left end of the lower horizontal frame 33 are fixed by a single screw. The right end of the horizontal frame 32 and the vertical frame 12 on the left side of the frame 10 are fixed to the display panel 102 by a single screw, and the right end of the horizontal frame 33 and the vertical frame 12 are displayed by a single screw. 102 is fixed.

  FIG. 4 is a rear view of the display device 100 in which the assemblies 10 and 30 having the above structure are attached to the rear side of the display panel 102. Also in FIG. 4, the illustration of the rear panel is omitted. FIG. 4 shows a state where two circuit boards 41 and 42 are attached to the assemblies 10 and 30. In other words, the circuit board 41 is attached to the cross-shaped frame 10, and another circuit board 42 is attached to the subframe 30. Although not shown, a plurality of electronic components are mounted on both surfaces of the circuit boards 41 and 42.

  One circuit board 41 attached to the cross-shaped frame 10 is supported and fixed by a plurality of support piece portions 25 (see FIG. 3) protruding from the inner end sides of the two vertical frames 12 and 14 of the frame 10. The As shown in FIGS. 2 and 5, each support piece 25 extends toward the back surface of the display panel 102 and is bent substantially parallel to the back surface. In other words, the circuit board 41 is disposed between the two vertical frames 12 and 14 and between the two horizontal frames 16 and 18, and approaches the display panel 102 at least at the same distance as the frame 10. It is attached in the state.

  FIG. 5 shows a cross-sectional view of the display device 100 taken along line VV in FIG. Although not shown here, a plurality of electronic components are mounted on both surfaces of the circuit board 41. In the present embodiment, the lengths of the plurality of support pieces 25 are set so that the circuit board 41 is disposed at substantially the same distance as the horizontal frames 16 and 18 close to the display panel 102. Therefore, the circuit board 41 is closer to the display panel 102 than the vertical frames 12 and 14 that are slightly separated from the display panel 102.

  5, the plurality of electronic components mounted on the circuit board 41 do not interfere with the display panel 102 and do not protrude greatly to the back side from the frame 10. That is, by arranging the circuit board 41 between the cross-shaped frames 10, a sufficient space is provided for releasing the electronic components mounted on the circuit board 41 compared to the case where the circuit board is stacked on the flat frame. be able to. As a result, the circuit board 41 can be brought close to the display panel 102, and the components protruding to the back side of the frame 10 can be substantially eliminated, and the display device 100 can be thinned.

  On the other hand, as shown in FIG. 3, another circuit board 42 is supported and fixed by a plurality of support piece portions 35 protruding from the inner end side of the subframe 30. The sub-frame 30 of the present embodiment is attached to the frame 10 for the purpose of attaching the circuit board 42, and there is no particular restriction on the distance to the display panel 102. That is, the plurality of support pieces 35 that support the circuit board 42 do not necessarily have to be bent so as to be close to the display panel 102 side.

  However, since the circuit board 42 is also arranged at a position that does not interfere with the frames 31, 32, and 33 inside the subframe 30, the circuit board 42 can be brought as close to the display panel 102 as necessary, and An accommodation space for a plurality of electronic components (not shown) mounted on the substrate 42 can also be secured.

  As described above, according to the present embodiment, the frame 10 of the display device 100 has a cross-girder structure, and the plurality of support pieces 25 projecting from the inner edge of the frame 10 and the inner edge of the subframe 30 are used. Since the circuit boards 41 and 42 are supported and fixed by the plurality of projecting support pieces 35 provided in a protruding manner, a chassis for attaching the board, which has been conventionally required, is unnecessary, and the display device 100 can be reduced in weight. In addition, since the frame 10 having a cross-beam structure is employed, the circuit board 41 can be brought close to the display panel 102, and the display device 100 can be thinned.

  Furthermore, since the wall-hanging metal fitting 20 is separated from the vertical frames 12 and 14 so as to be detachable, whether or not the wall-hanging metal fitting 20 is attached during the manufacturing process even when the necessity and necessity of the wall hanging metal fitting 20 for each destination are different. Since the display device for each destination can be manufactured by using only the frame, the frame can be shared and the manufacturing cost can be reduced.

  Further, as in the present embodiment, the sub-frame 30 can be attached to the frame 10 and another circuit board 42 can be attached, and the degree of freedom in the layout of the boards is high. Further, unlike the frame 10 for ensuring the rigidity of the display device 100, the subframe itself does not require high rigidity, and thus has a high degree of design freedom.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments. For example, you may delete some components from all the components shown by embodiment mentioned above.

  For example, in the above-described embodiment, the case where the circuit board 41 is supported and fixed by the plurality of support piece portions 25 protruding from the inside of the frame 10 is described. However, the present invention is not limited to this, and as illustrated in FIG. A further circuit board (not shown) may be attached by using the support piece portion 26 that protrudes outside the frame 14. In this case, another subframe may be attached to the right side of the frame 10 in the figure.

  In the above-described embodiment, the case where the support piece portion 25 of the frame 10 is provided so as to protrude inside the vertical frames 12 and 14 is described, but the support piece portion may be provided only on the horizontal frames 16 and 18. Alternatively, the support piece portions 25 may be provided on both the vertical frames 12 and 14 and the horizontal frames 16 and 18. Similarly, the mounting position of the support piece 35 of the subframe 30 can be arbitrarily changed.

Further, in the above-described embodiment, the case where the horizontal frames 16 and 18 are attached to the side close to the back surface of the display panel 102 and the two vertical frames 12 and 14 are attached to the outside thereof has been described. Alternatively, the horizontal frames 16 and 18 may be attached after the vertical frames 12 and 14 are attached to the display panel 102.
Hereinafter, the invention described in the scope of claims at the beginning of the application of the present application will be added.
[1]
A display panel;
A horizontal frame that extends in the width direction along the back surface of the display panel and is fixed to the display panel;
The circuit board is bent and extended from the edge of the horizontal frame toward the display panel so that the circuit board is held close to the display panel, and the tip of the circuit board contacts the edge of the surface of the circuit board on the display panel side. A plurality of support pieces for supporting and fixing,
A display device comprising:
[2]
The frame further includes a frame-like subframe that is disposed along the back surface of the display panel and is attached to the horizontal frame, and another circuit board is attached to the inside of the subframe so as not to overlap the circuit board. [1] The display device according to [1].
[3]
The display device according to [1], wherein the horizontal frame has left and right ends at positions spaced inward from the edge in the width direction of the display panel.
[4]
A display panel;
A vertical frame that extends vertically along the back of the display panel and is fixed to the display panel;
The circuit board is bent and extended from the edge of the vertical frame toward the display panel so that the circuit board is held close to the display panel, and its tip abuts against the edge of the surface of the circuit board on the display panel side. A plurality of support pieces for supporting and fixing,
A display device comprising:
[5]
The frame further includes a frame-like subframe that is disposed along the back surface of the display panel and is attached to the vertical frame, and another circuit board is attached to the inside of the subframe so as not to overlap the circuit board. [4] The display device according to [4].
[6]
[4] The display device according to [4], wherein the upper and lower ends of the vertical frame are fixed to a front cover disposed on the front side of the display panel.

  DESCRIPTION OF SYMBOLS 10 ... Frame, 12, 14 ... Vertical frame, 16, 18 ... Horizontal frame, 20 ... Wall hanging tool, 25, 35 ... Supporting piece part, 30 ... Sub frame, 31 ... Vertical frame, 32, 33 ... Horizontal frame, 41 42, a circuit board, 100, a display device, 102, a display panel, 110, a support stand.

Claims (6)

A display panel;
A horizontal frame that extends in the width direction along the back surface of the display panel and is fixed to the display panel;
The electronic component mounted on the circuit board is bent and extended from the edge of the horizontal frame toward the display panel so that the circuit board is held close to the display panel until the electronic component is not in contact with the display panel. A plurality of support pieces for supporting and fixing the front end of the circuit board in contact with the edge of the display panel side surface;
A display device comprising:   The frame further includes a frame-like subframe that is disposed along the back surface of the display panel and is attached to the horizontal frame, and another circuit board is attached to the inside of the subframe so as not to overlap the circuit board. The display device according to claim 1.   The display device according to claim 1, wherein the horizontal frame has left and right ends at positions spaced inward from the edge in the width direction of the display panel. A display panel;
A vertical frame that extends vertically along the back of the display panel and is fixed to the display panel;
The electronic component mounted on the circuit board is bent and extended from the edge of the vertical frame toward the display panel so that the circuit board is held close to the display panel until the electronic component is not in contact with the display panel. A plurality of support pieces for supporting and fixing the front end of the circuit board in contact with the edge of the display panel side surface;
A display device comprising:   The frame further includes a frame-like subframe that is disposed along the back surface of the display panel and is attached to the vertical frame, and another circuit board is attached to the inside of the subframe so as not to overlap the circuit board. The display device according to claim 4.   The display device according to claim 4, wherein upper and lower ends of the vertical frame are fixed to a front cover disposed on a front side of the display panel.

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