TWI847094B - Display device - Google Patents

Abstract

A display device includes a plurality of display assemblies, a box body, and a plurality of elastic elements. Each of the display assemblies includes a back plate, a display panel, and at least one protrusion. The display panel is installed on the first surface of the backplane. The protrusions are on a second surface of the back plate, and the second surface is opposite to the first surface. The box body includes a bottom plate and a plurality of wall plates, the wall plates extend from the bottom plate, the display assemblies are installed on the wall plates, and the protrusions face to the bottom plate. Each of the elastic elements is arranged between the adjacent protrusion and the wall, and abuts against the protrusion and the wall.

Description

Display device

The present invention relates to the field of display, and in particular to a display device.

As the manufacturing technology of display substrates matures, they are becoming more and more common in daily life. They are assembled into light boxes by splicing and are also used in concerts and street advertisements to replace traditional acrylic light boxes or bulb-type LED billboards to provide higher resolution and dynamic display effects.

Since the spliced light box is composed of multiple display panels, it is easily affected by its own gravity and thermal expansion due to long-term use, which can easily change the preset gap between the display panels and even cause squeezing, which will cause obvious partial discontinuity of the picture. In severe cases, it may cause the display panel to loosen and cause damage to the overall structure.

In order to solve the problems faced by the prior art, a display device is provided herein. The display device includes a plurality of display assemblies, a box, and a plurality of elastic elements. Each display assembly includes a back plate, a display panel, and at least one protrusion. The display panel is mounted on a first surface of the back plate. The protrusion is located on a second surface of the back plate, and the second surface is opposite to the first surface. The box includes a bottom plate and a plurality of wall plates, the wall plates extend from the bottom plate, the display assembly is mounted on the wall plates, and the protrusion faces the bottom plate. Each elastic element is disposed between adjacent protrusions and wall plates, and abuts against the protrusions and wall plates.

In some embodiments, the wall panel includes a plurality of outer wall members and a plurality of inner wall members, the outer wall members extend from the periphery of the bottom plate, and the inner wall members are located between the outer wall members.

In more detail, in some embodiments, the elastic element includes a spring pin, and the spring pin is located between the adjacent outer wall member and the protrusion.

In some embodiments, the display device further includes a stopper, the back plate includes a groove, the stopper includes a block and a protrusion, wherein the block is located in the groove, the first surface of the block contacts one of the outer wall members, the second surface of the block contacts the back plate, the first surface and the second surface are orthogonal, and the protrusion extends from the first surface of the block toward the bottom plate.

More specifically, in some embodiments, the display device further includes a fixing member and a fixing seat, the fixing seat extends from the outer wall member, the elastic element is sleeved on the fixing seat, the protrusion is provided with a through hole, and the end of the fixing seat away from the outer wall member passes through the through hole and is locked and connected to the fixing member.

More specifically, in some embodiments, the outer wall member includes two first outer wall members and two second outer wall members. The two first outer wall members are respectively connected to the two ends of the two first outer wall members. The inner wall member includes at least one first inner wall member and at least one second inner wall member. The first inner wall member is parallel to the first outer wall member and connected to the second outer wall member. The second inner wall member is parallel to the second outer wall member and connected to the first outer wall member and the first inner wall member. The first outer wall member, the second outer wall member, the first inner wall member and the second inner wall member separate a plurality of installation areas.

More specifically, in some embodiments, the elastic element includes a spring, the spring is located between the adjacent inner wall member and the protrusion, and one end of the spring is fixed to the inner wall member. Furthermore, springs are respectively installed on both sides of the intersection of the first inner wall member and the second inner wall member.

In some embodiments, the inner wall member or the outer wall member also has a positioning column, which extends toward the back plate, and an oblique long circular hole is provided on the back plate, and the positioning column is inserted into the oblique long circular hole.

More specifically, in some embodiments, the inner wall member also has a limiting column, which is close to the back plate and the display panel.

The display device uses a simple mechanism to provide restoring force through the setting of protrusions and elastic components to prevent the position of the display panel from shifting due to long-term use, and can maintain a high-resolution display state for a long time, avoiding loosening or damage of the structure caused by gravity and expansion.

1: Display device

10: Display assembly

11: Back panel

11A: First surface

11B: Second surface

111: Groove

113: oblique long round hole

115:Fixed round hole

13: Display panel

15: protrusion

151:Piercing

17: Stopper

19:Block

19A: Butt surface

19C: Side surface

20: Cabinet

21: Base plate

23: Siding

231:External wall parts

231A: First outer wall piece

231B: Second outer wall piece

233: Inner wall parts

233A: First inner wall part

233B: Second inner wall piece

235: Positioning column

237: Limiting column

25: Fixed seat

27:Fixers

30: Elastic element

FIG1 is a partial exploded view of the first embodiment of the display device.

Figure 2 is a partial cross-sectional view of the first embodiment of the display device.

Figure 3 is a partial cross-sectional view showing the stress state of the first embodiment of the device.

FIG4 is a partial cross-sectional view of the second embodiment of the display device.

FIG5 is a partial top view of the third embodiment of the display device.

Figure 6 is a partial enlarged view of the third embodiment of the display device.

FIG7 is a partial cross-sectional view of the third embodiment of the display device.

FIG8 is a partial three-dimensional diagram of the fourth embodiment of the display device.

FIG9 is a schematic diagram showing the installation status of the fourth embodiment of the display device.

FIG. 1 is a partial exploded view of the first embodiment of the display device. FIG. 2 is a partial cross-sectional view of the first embodiment of the display device. As shown in FIG. 1 and FIG. 2, the display device 1 includes a plurality of display assemblies 10, a housing 20, and a plurality of elastic elements 30. Each display assembly 10 includes a back plate 11, a display panel 13, and at least one protrusion 15. The display panel 13 is mounted on the first surface 11A of the back plate 11. The protrusion 15 is located on the second surface 11B of the back plate 11, and the second surface 11B is opposite to the first surface 11A. Here, the second surface 11B refers to the surface facing the housing 20.

The box 20 includes a bottom plate 21 and a plurality of wall plates 23. The wall plates 23 extend from the bottom plate 21. The display assembly 10 is mounted on the wall plates 23, and the protrusions 15 face the bottom plate 21. Each elastic element 30 is disposed between adjacent protrusions 15 and wall plates 23, and abuts against the protrusions 15 and the wall plates 23.

FIG3 is a partial cross-sectional view showing the stress state of the first embodiment of the display device. As shown in FIG3, with reference to FIG2, when the display assembly 10 is subjected to a thrust from the vicinity, for example, a thrust caused by thermal expansion, the protrusion 15 is pressed toward the wall plate 23 to compress the elastic element 30, so that the elastic element 30 accumulates elastic force. When the thrust disappears, for example, when the display panel 13 is closed and cooled, the elastic element 30 releases the accumulated elastic force as a restoring force, so that the display assembly 10 is reset.

Here, the wall plate 23 includes a plurality of outer wall parts 231 and a plurality of inner wall parts 233. The outer wall parts 231 extend from the periphery of the bottom plate 21, and the inner wall parts 233 are located between the outer wall parts 231. In other words, the outer wall part 231 is a frame, and the inner wall part 233 is a partition rib. Generally speaking, the aforementioned thrust condition mainly occurs in the part adjacent to the frame, so the elastic element 30 is arranged between the outer wall part 231 and the adjacent protrusion 15. Further, the elastic element 30 here can be a spring pin. However, this is only an example, not a limitation. In fact, various other elastic elements 30 that are easy to accumulate elastic force can also be selected.

FIG4 is a partial cross-sectional view of the second embodiment of the device. As shown in FIG4, with reference to FIG2, the main difference of the second embodiment is the design change of the back plate 11 and the protrusion 15. In the second embodiment, the back plate 11 includes a groove 111 near the edge. The protrusion 15 is separated from the back plate 11. The protrusion 15 is set on the stopper 17. The stopper 17 includes the protrusion 15 and the stopper 19. The block 19 is located in the groove 111, the abutting surface 19A of the block 19 contacts the outer wall member 231, and the side surface 19C of the block 19 contacts the back plate 11, the abutting surface 19A and the side surface 19C are orthogonal, and the protrusion 15 extends from the block 19 toward the bottom plate 21. In other words, when subjected to thrust, the stopper 17 can reduce the thrust through friction and provide an active function as a movable member for compressing the elastic element 30.

Furthermore, in some embodiments, the display device 1 further includes a fixing seat 25 and a fixing member 27. The fixing seat 25 extends from the outer wall member 231 toward the protrusion 15, and the elastic member 30 is sleeved on the fixing seat 25. The protrusion 15 is provided with a through hole 151. The end of the fixing seat 25 away from the outer wall member 231 passes through the through hole 151 and is locked and connected with the fixing member 27. Here, the fixing member 27 can be a screw, the fixing seat 25 can be a stud, and the elastic member 30 can be a spring, thereby preventing the blocking member 17 from loosening.

FIG5 is a partial top view of the third embodiment of the display device. FIG6 is a partial enlarged view of the third embodiment of the display device. FIG7 is a partial cross-sectional view of the third embodiment of the display device. For the sake of clarity, FIG5 only shows the box 20 and a plurality of elastic elements 30, and omits the display assembly, while FIG6 omits the bottom plate. As shown in FIG5 to FIG7, the elastic element 30 can be a spring, which is located between the adjacent inner wall member 233 and the protrusion 15, and one end of the elastic element 30 (spring) is fixed to the inner wall member 233. When pushed or subjected to gravity, at this position, the spring is subjected to a tensile force, so that the position of the display assembly 10 can be further maintained by the spring tensioning method.

As shown in FIG. 5, referring to FIG. 1 again, the outer wall member 231 includes two first outer wall members 231A and two second outer wall members 231B, and the two first outer wall members 231A are connected to the two ends of the two first outer wall members 231A respectively. In some embodiments, the two first outer wall members 231A are parallel to each other, and the two second outer wall members 231B are parallel to each other and are orthogonal to the two first outer wall members 231A. Here, the first outer wall member 231A refers to a horizontal outer frame member, and the second outer wall member 231B refers to a longitudinal outer frame member. The inner wall member 233 includes a first inner wall member 233A and a second inner wall member 233B, the first inner wall member 233A is parallel to the first outer wall member 231A and connected to the second outer wall member 231B, and the second inner wall member 233B is parallel to the second outer wall member 231B and connected to the first outer wall member 231A and the first inner wall member 233A. That is, the first inner wall 233A is a horizontal partition rib, and the second inner wall 233B is a vertical partition rib. The first outer wall 231A, the second outer wall 231B, the first inner wall 233A, and the second inner wall 233B are used to separate multiple installation areas for installing the display assembly 10. Here, four display assemblies 10 are used as an example, but it is not limited to this.

In more detail, springs can be installed on both sides of the intersection of the first inner wall member 233A and the second inner wall member 233B, so that the two display assemblies 10 can bear tension together to achieve balance. In addition, the display assembly 10 can include multiple protrusions 15, that is, the structures of the first embodiment and the third embodiment, or the structures of the second embodiment and the third embodiment can be combined.

FIG8 is a partial three-dimensional diagram of the fourth embodiment of the display device. FIG9 is a schematic diagram of the installation state of the fourth embodiment of the display device. As shown in FIG8, with reference to FIG5, the box body 20 can also add an inner wall member 233, for example, a second inner wall member 233B, and the outer wall member 231 and the inner wall member 233 also have a positioning column 235, and the positioning column 235 extends toward the back plate 11. In addition, the back plate 11 is provided with an oblique oblong hole 113, and one or more positioning columns 235 are inserted into the oblique oblong hole 113. The back plate 11 and the other parts of the inner wall member 233 or the outer wall member 231 can be fixed by inserting and fixing the general fixing circular hole 115 and the positioning column 235.

As shown in FIG. 9 , the purpose of the oblique long round hole 113 is to allow the positioning column 235 to slide in the oblique long round hole 113, so as to cause the display assembly 10 to slide when subjected to force, thereby generating sliding and rotation fine adjustment, and balancing the tension or pressure of the elastic element 30, so as to maintain a stable spacing between the display assemblies 10.

In more detail, in some embodiments, the oblique oblong holes 113 are opened on the upper and lower sides of the back plate 11, and are symmetrical with the center of the back plate 11. In addition, corresponding positioning posts 235 are set on the two first outer wall members 231A. The long axis direction of the two oblique oblong holes 113 is roughly the same as the diagonal of the back plate 11. However, this is only an example and is not limited to this. In fact, one or more oblique oblong holes 113 can be set on the circumference with the center of the back plate 11 as the center. In this way, when the display assembly 10 is subjected to force, in addition to sliding and rotating, the display assembly 10 can be close to the center of the display device 1, so that the distance between the display assemblies 10 is maintained stable.

In more detail, referring to FIG. 8 again, in some embodiments, the inner wall member 233 also has a limiting column 237, and the limiting column 237 is close to the back plate 11 and the display panel 13. The limiting column 237 can limit the sliding and rotation of the display assembly 10 to a certain range when the display assembly 10 is subjected to force, thereby preventing the display assembly 10 from coming out and causing damage to the overall structure.

In summary, the display device 1 provides a restoring force by using a simple mechanism through the arrangement of the protrusion 15 and the elastic element 30, thereby preventing the position of the display panel 13 from being shifted due to long-term use, and can maintain a high-resolution display state for a long time, thereby preventing the loosening or damage of the structure caused by gravity and expansion.

Although the technical content of the present invention has been disclosed as above with the preferred embodiment, it is not used to limit the present invention. Any slight changes and modifications made by anyone familiar with this art without departing from the spirit of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the attached patent application.

1: Display device

10: Display assembly

11: Back panel

11A: First surface

11B: Second surface

13: Display panel

15: protrusion

20: Cabinet

21: Base plate

23: Siding

231A: First outer wall piece

231B: Second outer wall piece

233: Inner wall parts

233A: First inner wall part

30: Elastic element

Claims (8)

A display device comprises: a plurality of display assemblies, each of which comprises: a back plate comprising a groove; a display panel mounted on a first surface of the back plate; and at least one protrusion located on a second surface of the back plate, the second surface being opposite to the first surface; a box comprising a bottom plate and a plurality of wall plates extending from the bottom plate, the display assemblies being mounted on the wall plates, and the protrusions facing the bottom plate, wherein the wall plates comprise a plurality of outer wall pieces and a plurality of inner wall pieces, the outer wall pieces Extending from the periphery of the bottom plate, the inner wall parts are located between the outer wall parts; a plurality of elastic elements, each of which is disposed between the adjacent protrusions and the wall plate and abuts against the protrusions and the wall plate; and a stopper, comprising a block and one of the protrusions, wherein the block is located in the groove, a first surface of the block contacts one of the outer wall parts, a second surface of the block contacts the back plate, the first surface and the second surface are orthogonal, and the protrusion extends from the first surface of the block toward the bottom plate. A display device as described in claim 1, wherein the elastic elements include a spring pin, and the spring pin is located between the adjacent outer wall member and the protrusion. The display device as described in claim 1 further comprises a fixing member and a fixing seat, the fixing seat extends from the outer wall member toward the protrusion, the elastic element is sleeved on the fixing seat, the protrusion is provided with a through hole, and the end of the fixing seat away from the outer wall member passes through the through hole and is locked and connected with the fixing member. The display device as described in claim 1 or claim 2, wherein the outer wall parts include two first outer wall parts and two second outer wall parts, the two first outer wall parts are respectively connected to the two ends of the two first outer wall parts, the inner wall parts include at least one first inner wall part and at least one second inner wall part, the first inner wall part is parallel to the first outer wall parts and connected to the second outer wall parts, the second inner wall part is parallel to the second outer wall parts and connected to the first outer wall parts and the first inner wall parts, and the first outer wall parts, the second outer wall parts, the first inner wall parts and the second inner wall parts separate a plurality of installation areas. The display device as described in claim 4, wherein the elastic elements include a spring, the spring is located between the adjacent inner wall member and the protrusion, and one end of the spring is fixed to the inner wall member. The display device as described in claim 5, wherein the spring is installed on both sides of the intersection of the first inner wall member and the second inner wall member. The display device as described in claim 1, wherein the inner wall member or the outer wall member also has at least one positioning post, the positioning post extends toward the back plate, the back plate is provided with at least one oblique long circular hole, and the positioning post is inserted into the oblique long circular hole. The display device as described in claim 7, wherein the inner wall member also has a limiting column, and the limiting column is closely adjacent to the back plate and the display panel.