JP5999940B2 - Video display device - Google Patents

Description

  The present invention relates to a video display device that displays a video by connecting a plurality of display units including a plurality of display panels in the vertical and horizontal directions, for example.

  As a conventional video display device that displays video by connecting a plurality of display units having a plurality of display panels in the vertical and horizontal directions, for example, as shown in Japanese Utility Model Laid-Open No. 1-127114 (Patent Document 1). There is. This is because a plurality of display units in which a plurality of display elements are arranged on one mounting member are fixed in the vertical direction, a projection is provided on the housing, and an engagement port to be engaged with the projection is formed on the mounting member. By engaging engagement holes of a plurality of attachment members fixed in the vertical direction with the protrusions of the housing, the display unit temporarily supports a plurality of attachment members fixed in the vertical direction and is fixed with screws. The video display apparatus is assembled by similarly attaching a plurality of attachment members in which a plurality of other display units are fixed in the vertical direction.

  Moreover, as another conventional video display device, there is one as shown in Japanese Patent Application Laid-Open No. 2004-35469 (Patent Document 2). This is a display unit in which a plurality of display panels in which a plurality of display elements are arranged are fixed to a casing in the vertical and horizontal directions, and a video display device is assembled by fixing a plurality of display units in the vertical and horizontal directions. .

  Furthermore, as another conventional video display device, there is one as shown in Japanese Patent No. 3665041 (Patent Document 3). In this method, a display unit is configured by fixing a plurality of display panels with a plurality of LEDs arranged vertically and horizontally to a housing, and a video display device is assembled by fixing a plurality of display units vertically and horizontally.

Japanese Utility Model Publication No. 1-127114 Japanese Patent Laid-Open No. 2004-35469 Japanese Patent No. 3665041

The above-described conventional video display device described in Patent Document 1 is likely to be displaced between display units when the accuracy of the casing side to which the display unit is attached is not achieved. Further, although a large screen on a plane can be handled, there is a problem that it is difficult to form a large screen image display device of various shapes such as an R screen.

  In addition, the video display device described in Patent Document 2 is likely to be displaced between display units when the accuracy of the housing side to which the display unit is attached is not achieved. Although a large screen on a plane can be handled, there is a problem that it is difficult to form a large screen display device having various shapes such as an R screen.

  Further, the video display device described in Patent Document 3 is likely to be displaced between display units when the accuracy of the housing side to which the display unit is attached is not achieved. Although a large screen on a plane can be handled, there is a problem that it is difficult to form a large screen display device having various shapes such as an R screen.

  As described above, a shift occurs between the display units, and a display shift, a dark line, a bright line, and the like appear when a large screen is displayed. Fixing the display unit to the housing is an on-site work, and if there is a shift, there is no adjustment fee on the display unit side, so adjustment is not possible, and work such as adjusting by inserting a spacer etc. occurs was there. When the spacer is used, there is a problem that the installation place of the display device is narrow and the workability is poor, so that it cannot be eliminated if dropped.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a video display device capable of enhancing the assembly accuracy of a display unit.

The video display device according to the present invention is a video display device configured by arranging a plurality of display units each having a plurality of display panels in a housing, wherein the display unit is a fixing bracket to which the plurality of display panels are attached. An upper bracket provided on the upper side of the fixing bracket, a lower bracket provided on the lower side of the fixing bracket, a first engaging body provided on the lower bracket, A second engaging body that engages with the first engaging body provided on the upper bracket ; and a fixing support that is provided on the upper bracket and attached to a lateral frame of the housing. is there.

  According to the video display device according to the present invention, it is possible to obtain a video display device capable of enhancing the assembly accuracy of the display unit.

It is a perspective view which shows the video display apparatus concerning Embodiment 1 of this invention. It is a perspective view which shows the display unit in the video display apparatus concerning Embodiment 1 of this invention. It is a perspective view which shows the display unit in the video display apparatus concerning Embodiment 1 of this invention. 1 is a perspective view showing an assembled state of a video display apparatus according to Embodiment 1 of the present invention. FIG. 3 is a perspective view showing an assembled state of the display unit in the video display apparatus according to Embodiment 1 of the present invention. FIG. 3 is a perspective view showing an assembled state of the display unit in the video display apparatus according to Embodiment 1 of the present invention. It is a perspective view which shows the bracket for fixation in the video display apparatus concerning Embodiment 1 of this invention.

It is a perspective view which shows the display unit in the video display apparatus concerning Embodiment 2 of this invention. It is a perspective view which shows the video display apparatus concerning Embodiment 3 of this invention. It is a perspective view which shows the video display apparatus concerning Embodiment 3 of this invention.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 6. In each figure, the same or equivalent members and parts will be described with the same reference numerals. 1 is a perspective view showing an image display apparatus according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing a display unit in the video display apparatus according to Embodiment 1 of the present invention. FIG. 3 is a perspective view showing a display unit in the video display apparatus according to Embodiment 1 of the present invention. FIG. 4 is a perspective view showing the assembled state of the video display apparatus according to Embodiment 1 of the present invention. FIG. 5 is a perspective view showing an assembled state of the display unit in the video display apparatus according to Embodiment 1 of the present invention.
FIG. 6 is a perspective view showing an assembled state of the display unit in the video display apparatus according to Embodiment 1 of the present invention. FIG. 7 is a perspective view showing a fixing bracket in the video display apparatus according to Embodiment 1 of the present invention.

  In each of these drawings, the video display device 1 is configured by arranging a plurality of display units 3 in a housing 2 vertically and horizontally without any gaps. The display unit 3 is configured by mounting a plurality of display panels 4 such as organic EL, for example, and pixels are arranged in a matrix on the display panel 4.

  Here, the dimensional accuracy and the assembly accuracy of the display unit 3 are important. When a deviation occurs between the display units 3, a display deviation, a dark line, a bright line, and the like appear when a large screen is displayed. The deviation of the display unit 3 appears as a display deviation. For example, when the interval between the adjacent display units 3 is too wide, the variation in the dimension between the display units 3 is caused by the increase in the pixel interval between the display units 3. If it is perceived as a decrease, it becomes a dark line, and conversely, if the interval between adjacent display units 3 is too narrow, a shortening of the pixel interval between the display units 3 is perceived as an improvement in brightness, resulting in a bright line.

  Here, in order to improve the dimensional accuracy of the display unit 3, as shown in FIGS. 2 and 3, the display unit 3 is attached to the fixing bracket 5 and is provided on the upper side of the fixing bracket 5. A bracket 6, a lower bracket 7 provided on the lower side of the fixing bracket 5, a display panel 4, a fixing support 10 attached to the upper bracket 6, and a substrate (not shown); The size of the display unit 3 alone can be increased in accuracy. Furthermore, by stacking the display units 3 on the base 11 of the high-precision housing 2, the large-sized video display device 1 can be assembled with high precision.

  The lower bracket 7 is provided with, for example, a first engaging body 8 constituted by positioning protrusions, and the upper bracket 6 is constituted by, for example, a positioning hole into which the first engaging body 8 constituted by positioning protrusions is fitted. A second engaging body 9 is provided.

  According to this structure, first, the dimensional accuracy of the display unit 3 alone is important. As shown in FIG. 7, the display unit 3 is required to have the accuracy of the dimension A of the fixing bracket 5, so that the shape of the fixing bracket 5 is a shape that requires accuracy at the punching portion of the sheet metal part. The bending portion of the fixing portion of each fixing bracket (not shown) is fixed by providing a clearance between the fixing brackets 5. In this way, since it can be managed only with the accuracy of the punched portion, the accuracy of the display unit 3 can be achieved. Further, not only the accuracy of the parts but also the variation due to the assembly of the component parts including the display panel 4 is eliminated by using the assembly jig.

  Next, the base 11 of the housing 2 that serves as a reference for stacking the display units 3 is important. As shown in FIGS. 4 to 6, the base 11 of the housing 2 has a position setting hole 11 a for setting the position of the display unit 3. The position of the display unit 3 is set by obtaining the dimensional accuracy of the base 11 and the position setting hole 11a.

  The first engagement body 8 constituted by the positioning protrusion provided on the lower bracket 7 of the display unit 3 positioned at the lowermost stage is inserted into the position setting hole 11a provided in the base 11 of the housing 2 to fix the support. 10 is fixed to the horizontal frame 21 of the housing 2 by a fixing screw 12. Thereby, the attachment of the display unit 3 located at the lowermost stage is completed. A vertical frame 22 that reinforces the horizontal frame 21 is provided.

  With this stacked structure, after the lowermost display unit 3 is accurately assembled with the base 11, the first engaging body 8 constituted by positioning protrusions of another display unit 3 is formed on the display unit 3. Is inserted into the second engaging body 9 constituted by positioning holes, and a large-screen display device 1 in which the shift between the display units 3 is minimized can be formed. However, when the accuracy is obtained by this stacking method, the accuracy of the base 11 of the housing 2 and the accuracy of the display unit 3 are required.

  Then, after the next lowermost display unit 3 is assembled with high accuracy by the base 11, the first engagement body 8 constituted by the positioning projections of another display unit 3 is placed on the display unit 3. By inserting and stacking in the second engaging body 9 constituted by the positioning holes, it is possible to form the large-screen display device 1 in which the displacement between the display units 3 is minimized.

Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIG. FIG. 8 is a perspective view showing a display unit in a video display apparatus according to Embodiment 2 of the present invention.

  When the accuracy of the base 11 of the housing 2 is not achieved, when the display unit 3 is fixed with the fixing screw 12, the display unit 3 is fixed in an inclined state depending on the accuracy of the housing 2. When the accuracy of the housing 2 is not high, as shown in FIG. 8, the fixing support 61 is configured to be freely movable in the front-rear, left-right, and rotational directions, and the fixing screw 12 is loosened to fix the support. By moving 61, the display unit 3 can be accurately fixed horizontally and vertically without being affected by insufficient accuracy of the housing 2.

  With this stacked structure, after the lowermost display unit 3 is assembled with high accuracy on the base 11 of the housing 2, the first display unit 3 is formed on the display unit 3 with positioning protrusions of another display unit 3. The large-screen video display device 1 with a minimum shift between the display units 3 can be formed by inserting and stacking the engaging body 8 into the second engaging body 9 constituted by positioning holes.

  As described above, since this stacking method and the fixing support 61 can freely adjust the fixing position, the shift between the display units 3 can be corrected, and the large-screen video display device 1 can be formed. There are benefits.

Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIGS. 9 and 10. In the drawings, the same or corresponding members and parts are denoted by the same reference numerals. FIG. 9 is a perspective view showing a video display apparatus according to Embodiment 3 of the present invention. FIG. 10 is a perspective view showing a video display apparatus according to Embodiment 3 of the present invention.

  In each of the embodiments described above, the case where the video display device 1 is planar has been described. However, in Embodiment 3 of the present invention, the shape of the base 11 of the housing 2 is formed into an R shape that is a curved surface, The display unit 3 can be arranged in a curved shape by forming the shape of the horizontal frame (not shown) of the housing 2 into a curved shape R corresponding to the R-shaped base 11. 9 and FIG. 10 can form a curved R screen (unevenness), and various patterns can be formed. For example, for the R shape, the convex and concave curvatures of FIGS. 9 and 10 can be arbitrarily set. Furthermore, it is not limited to a convex shape or a concave shape, but can also deal with a special structure such as a wave shape.

By the way, in each of the above-described embodiments, the case where the display units 3 are stacked and assembled in the vertical direction and then the adjacent display units 3 are sequentially stacked and assembled in the vertical direction is described. Instead, the lowermost display unit 3 is assembled to the base 11 of the housing 2 in the horizontal direction, and then the second and subsequent display units 3 are assembled to the previous display unit 3 in the horizontal direction. It often has the same effect.

  Moreover, although the 1st engagement body 8 was comprised with the positioning protrusion and the 2nd engagement body 9 was described about the case where it comprised with the positioning hole, it is not limited to this, The 1st engagement body 8 is It is comprised by the positioning hole, and the 2nd engaging body 9 may be comprised by a positioning protrusion, and there exists the same effect. In this case, the base 11 of the housing 2 is provided with a position setting protrusion instead of the position setting hole 11a.

  It should be noted that within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

  The present invention is suitable for realizing a video display device capable of enhancing the assembly accuracy of a display unit.

DESCRIPTION OF SYMBOLS 1 Video display apparatus 2 Housing | casing 3 Display unit 4 Display panel 5 Fixing bracket 6 Upper side bracket 7 Lower side bracket 8 First engagement body 9 Second engagement body 10 Fixing support 11 Base 11a Position setting hole 101 Fixing support

Claims (4)

In the video display device configured by arranging a plurality of display units each including a plurality of display panels in a housing, the display unit includes a fixing bracket to which the plurality of display panels are attached, and an upper side of the fixing bracket. An upper bracket provided on the lower bracket, a lower bracket provided on the lower side of the fixing bracket, a first engagement body provided on the lower bracket, and the first bracket provided on the upper bracket. An image display device comprising: a second engagement body engaged with one engagement body; and a fixing support provided on the upper bracket and attached to a horizontal frame of the housing.   2. The video display device according to claim 1, wherein the first engagement body is a positioning protrusion, and the second engagement body is a positioning hole.   The video display device according to claim 1, wherein a lowermost stage of the display unit is engaged with a base of the housing.   The base of the housing is formed in a curved shape, the frame of the housing is formed in a curved shape corresponding to the curved base, and the display units are arranged in a curved shape. The video display device according to any one of claims 1 to 3.

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