JP4159816B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device, and more particularly to a display device constituting a large display screen.
[0002]
[Prior art]
Conventionally, this type of display device has become widespread as a display device that constitutes a large display screen that provides video information to many people in a wide area, and is installed in various places such as sports facilities, event facilities, buildings, etc. Yes. As such a conventional display device, a display device in which a plurality of display devices are arranged in a matrix to form a large display screen is known.
[0003]
A conventional display device includes a fixing member and a display unit fixed to the fixing member. The fixing member is supported by a frame attached to a wall surface on which a large display screen is installed. On the other hand, in the display unit, a plurality of picture elements (also referred to as pixels or pixels) composed of three types of light emitting elements of red (R), green (G), and blue (B) are arranged. An image with the element as the minimum element is displayed.
[0004]
The display unit includes a temporary latch mechanism 210 as shown in FIG. The latch mechanism 210 includes a case 211, a claw member 212 that is held by the case 211 and moves to a position that engages with the fixing member 200, and a spring 213 that biases the claw member 212. The display unit configured as described above is temporarily fixed to the fixing member 200 by the latch mechanism 210 and then fixed to the fixing member 200 by a plurality of screws.
[0005]
[Problems to be solved by the invention]
However, in the above conventional display device, since a plurality of latches cannot be simultaneously opened, a large number of latches cannot be provided, and the display unit must be supplementarily fixed to a fixing member with a plurality of screws. There has been a problem that it is difficult to attach and remove.
[0006]
In order to solve such a problem, an object of the present invention is to provide a display device capable of facilitating attachment work and removal work.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a display device according to the present invention includes a fixing member for attaching a display unit, a first position engaging with the fixing member, and a second position spaced apart from the fixing member. A rotating member that rotates the rotating member, an urging member that urges the first position and the second position, and a rotating shaft that supports the rotating member when the rotating member rotates. A biasing member mounting shaft having one end attached to a biasing member mounting portion provided on the supporting member and the other end provided on the rotating member. The display unit is fixed to the fixing member by engaging the rotating member with the fixing member, and the display unit is separated from the fixing member by separating the rotating member from the fixing member. The fixing member is configured to be detached. When serial display unit is fixed to the fixing member, by abutment with the pressing portion provided on the rotating member, moves the rotating member is in said second position to said first position It has the structure which has a rotation member moving part at the time of fixation.
[0008]
With this configuration, the display device of the present invention can fix the display unit to the fixing member by engaging the rotating member with the fixing member, and can also fix the display unit to the fixing member by separating the rotating member from the fixing member. Since it can detach | leave from, attachment work and removal work can be made easy.
Further, according to this configuration, the display device of the present invention can move the rotating member to the first position when the display unit is fixed to the fixing member, so that the attaching operation can be facilitated. .
[0011]
Furthermore, in the display device of the present invention, the display unit is formed with an opening for forming an opening, a first surface on which the support member is disposed, a second surface located on the back surface of the first surface, and an opening. The rotation member has a closing portion that closes the opening at the first position, and rotates from the second surface side through the opening to the closing portion through the opening. It has a configuration.
[0012]
With this configuration, the display device of the present invention can rotate the rotating member from the second surface side, so that the attaching operation and the removing operation can be performed from the front side of the display device.
Also, with this configuration, the display device of the present invention can close the opening for inserting the jig and rotating the rotating member, so that the intrusion of water and dust can be prevented.
[0015]
Furthermore, the display device of the present invention has a configuration in which the opening forming member has a seal member at least at a portion where the closing portion abuts on the first surface side.
[0016]
With this configuration, the display device of the present invention can more reliably close the opening.
[0017]
Further, in the display device according to the aspect of the invention, the fixing member has an engaged portion, the rotating member has an engaging portion that engages with the engaged portion, and the distal end of the engaging portion. And the rotation shaft of the rotation member is arranged to be smaller than the distance between the tip of the engaged portion and the rotation shaft of the rotation member. ing.
[0018]
With this configuration, the display device of the present invention can prevent the rotation member from rotating when the display unit is fixed to the fixed member, and thus prevents the rotation member from being detached from the fixed member. Can do.
[0019]
Furthermore, in the display device of the present invention, the fixing member has an engaged portion, and the rotating member is provided in parallel with the engaging portion that engages with the engaged portion, and the engaging portion. And an auxiliary engagement portion.
[0020]
With this configuration, in the display device of the present invention, even when the engaging portion is insufficiently engaged with the engaged portion, the auxiliary engaging portion can be engaged with the engaged portion, and the display unit is dropped. Can be prevented.
[0023]
Furthermore, in the display device of the present invention, the fixing member causes the rotating member in the second position to come into contact with the rotating member when the display unit is detached from the fixing member. It has the structure which has a rotation member moving part at the time of detachment which moves to the said 1st position.
[0024]
With this configuration, the display device of the present invention can move the rotating member to the first position when the display unit is detached from the fixed member, and can facilitate the next mounting operation.
[0025]
Further, in the display device of the present invention, the rotating member has a pressing portion that presses the fixing member to release the display unit from the fixing member when the display unit is detached from the fixing member. It has a configuration.
[0026]
With this configuration, the display device of the present invention can separate the display unit from the fixing member when the display unit is detached from the fixing member, so that the removal operation can be facilitated.
[0027]
Furthermore, the display device of the present invention has a configuration in which the display unit includes a positioning member that determines a position of the display unit with respect to the fixing member.
[0028]
With this configuration, the display device of the present invention can fix the display unit at an accurate position, so that the mounting operation can be facilitated and the configuration for determining the position of the display unit can be simplified. it can.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0030]
1 to 8 are diagrams showing a display device according to an embodiment of the present invention.
[0031]
First, the structure of the display device according to this embodiment will be described.
[0032]
As shown in FIGS. 4 and 5, the display device 100 includes a fixing member 110 and a display unit 120 that is detachably fixed to the fixing member 110. A plurality of display devices 100 are arranged in a matrix to constitute a large display screen.
[0033]
The fixing member 110 is supported by a frame (not shown) attached to a wall or the like on which a large display screen is installed. On the other hand, the display unit 120 has a display surface 121 for displaying an image and a back surface 122 positioned on the back surface of the display surface 121. On the display surface 121, a plurality of picture elements (also referred to as pixels or pixels) composed of three types of light emitting elements of red (R), green (G), and blue (B) are arranged. The video with the smallest element is displayed.
[0034]
As shown in FIGS. 1 and 2, the display unit 120 includes a support member 130, a rotation member 140 that is rotatably supported by the support member 130, and a spring or the like that biases the rotation member 140. Force member 150.
[0035]
Further, the display unit 120 includes an opening forming member 123 that forms an opening 124 that penetrates the display surface 121 and the back surface 122, and the opening forming member 123 includes a seal member 125. In the present embodiment, the back surface 122 constitutes a first surface on which the support member 130 is disposed, and the display surface 121 constitutes a second surface located on the back surface of the first surface. is doing.
[0036]
In addition, the display unit 120 includes a positioning member 126 that determines the position of the display unit 120 with respect to the fixing member 110. The positioning member 126 includes positioning pins provided in the display unit 120 and is inserted into a positioning hole (not shown) formed in the fixing member 110 so as to determine the vertical and horizontal positions of the display surface 121. It has become.
[0037]
The rotating member 140 has a rotating shaft 141 and rotates around the rotating shaft 141. The rotating member 140 includes a fixed position as a first position that engages with the fixing member 110 when the display unit 120 is fixed to the fixing member 110 and a fixing member when the display unit 120 is detached from the fixing member 110. It rotates between a separation position as a second position separated from 110.
[0038]
Further, the rotation member 140 has a closing portion 142 that closes the opening 124 at a fixed position, and rotates by receiving an external force from the display surface 121 side through the opening 124 to the closing portion 142. ing. Further, the rotating member 140 has a protruding portion 143 that protrudes toward the fixed member 110, and is rotated by receiving an external force on the protruding portion 143 from the back surface 122 side.
[0039]
The rotating member 140 includes an engaging portion 144 that engages with the fixing member 110 when the display unit 120 is fixed to the fixing member 110, an auxiliary engaging portion 145 that is provided in parallel with the engaging portion 144, and The display unit 120 includes a pressing portion 146 that presses the fixing member 110 when the display unit 120 is detached from the fixing member 110. The rotating member 140 causes the display unit 120 to be separated from the fixing member 110 when the pressing portion 146 presses the fixing member 110, and causes the display unit 120 to protrude further toward the display surface 121 than the display unit of the adjacent display device. It is like that.
[0040]
When the biasing member 150 is rotated to the fixed position side beyond the dead point, the biasing member 140 is biased to the fixed position, and when the biasing member 150 is rotated to the separation position side beyond the dead point, The rotating member 140 is urged to the disengagement position. The urging member 150 has one end anchored to the urging member mounting shaft 147 provided on the rotating member 140 and the other end anchored to the urging member mounting portion 131 provided on the support member 130. The urging force for urging the rotating member 140 at each of the above positions is transmitted to the rotating member 140. Here, the dead point of the urging member 150 is a state in which the urging member 150 is extended most with the rotation of the rotating member 140, that is, the urging member mounting shaft 147 of the rotating member 140 is rotated. This means that the rotating shaft 141 of the member 140 and the biasing member mounting portion 131 of the support member 130 are aligned on the same straight line.
[0041]
As shown in FIGS. 1 and 3, the fixing member 110 includes an engaged portion 160 that engages with the engaging portion 144 when the display unit 120 is fixed to the fixing member 110, and the display unit 120 that is fixed to the fixing member 110. A fixed rotation member moving unit 170 that moves the position of the rotation member 140 when the display unit 120 is detached from the fixed member 110, and a rotation at the time of separation that moves the position of the rotation member 140 when the display unit 120 is detached from the fixed member 110. And a member moving part 180.
[0042]
When the display unit 120 is fixed to the fixed member 110, the rotating member moving unit 170 at the time of fixing rotates the rotating member 140 at the separation position to the fixed position. When the display unit 120 is detached from the fixed member 110, the rotation member moving unit 180 at the time of separation is configured to rotate the rotation member 140 at the separation position to the fixed position.
[0043]
Further, as shown in FIG. 1, the rotating member 140 has a distance between the distal end 148 of the engaging portion 144 and the rotating shaft 141 between the distal end 161 of the engaged portion 160 and the rotating shaft 141. It is arrange | positioned so that it may become smaller than this distance. Therefore, the locus of the tip 148 of the engaging portion 144 that moves with the turning of the turning member 140 is positioned on the inner side of the tip 161 of the engaged portion 160. When an unexpected impact is applied, the engaged portion 160 prevents the engagement portion 144 from moving, and the fixing member 110 prevents the rotation member 140 from rotating.
[0044]
In addition, the auxiliary engaging portion 145 moves to the engaged portion 160 when the engaging portion 144 is insufficiently engaged with the engaged portion 160, that is, when the engagement of the engaging portion 144 is shallow. It is designed to engage.
[0045]
Next, the operation of the display device according to this embodiment will be described.
[0046]
First, the attaching operation of the display device 100 will be described for the case where the rotating member 140 is in the fixed position and the case where the rotating member 140 is in the detached position.
[0047]
In FIG. 6, when the rotating member 140 is in the fixed position, the display unit 120 is fixed to the fixed member 110 in the next step. First, as shown in FIG. 6A, the display unit 120 is disposed at a position facing the fixing member 110.
[0048]
Next, as shown in FIG. 6B, the display unit 120 is moved to the fixing member 110 side, and the auxiliary engaging portion 145 of the rotating member 140 is brought into contact with the engaged portion 160 of the fixing member 110. Let
[0049]
Next, as shown in FIG. 6C, the display unit 120 is further moved to the fixing member 110 side, and the auxiliary engaging portion 145 of the rotating member 140 is engaged with the engaged portion 160 of the fixing member 110. Combine. At this time, the urging member 150 urges the rotating member 140 to the fixed position.
[0050]
Next, as shown in FIG. 6D, the display unit 120 is further moved to the fixing member 110 side, and the engaging portion 144 of the rotating member 140 is brought into contact with the engaged portion 160 of the fixing member 110. Let
[0051]
Then, as shown in FIG. 6E, the display unit 120 is further moved to the fixing member 110 side, and the engaging portion 144 of the rotating member 140 is engaged with the engaged portion 160 of the fixing member 110. To finish the process. At this time, the urging member 150 urges the rotating member 140 to the fixed position.
[0052]
In FIG. 7, when the rotating member 140 is in the detached position, the display unit 120 is fixed to the fixing member 110 in the next step. First, as shown in FIG. 7A, the display unit 120 is arranged at a position facing the fixing member 110, the display unit 120 is moved to the fixing member 110 side, and the pressing portion 146 of the rotating member 140 is moved. When the fixing member 110 is fixed, the fixing member 110 is brought into contact with the rotating member moving portion 170.
[0053]
Next, as shown in FIG. 7B, the display unit 120 is further moved to the fixing member 110 side, and the rotating member 140 is moved to the fixed position side by the rotating member moving portion 170 when the fixing member 110 is fixed. Rotate. At this time, the urging member 150 urges the rotating member 140 to the disengaged position.
[0054]
Next, as shown in FIG. 7C, the display unit 120 is further moved to the fixed member 110 side, and the rotating member 140 is moved to the fixed position side by the rotating member moving portion 170 when the fixing member 110 is fixed. The biasing member 150 is rotated to shift from the detachment position side bias to the fixed position side bias. As a result, the urging member 150 rotates the rotating member 140 toward the fixed position and urges it to the fixed position. Then, the process proceeds to the process shown in FIG. 6B, the display unit 120 is fixed to the fixing member 110 through the processes shown in FIG. 6B to FIG. 6E, and the process ends.
[0055]
Next, the removal operation of the display device 100 will be described.
[0056]
In FIG. 8, the display unit 120 is detached from the fixing member 110 in the next step. First, as shown in FIG. 8B, the opening 124 of the display unit 120 is opened from the display surface 121 side of the display unit 120 with respect to the display unit 120 fixed to the fixing member 110 shown in FIG. Then, a jig (not shown) is inserted, and with this jig, the closing portion 142 of the rotating member 140 is pressed from the display surface 121 side of the display unit 120, and the rotating member 140 is rotated to the separation position side. At this time, instead of pressing the closing portion 142 of the rotating member 140 from the display surface 121 side of the display unit 120, the protruding portion 143 of the rotating member 140 is pressed upward in the drawing from the back surface 122 side of the display unit 120. Thus, the turning member 140 may be turned to the separation position side.
[0057]
Next, as shown in FIG. 8C, the rotating member 140 is further rotated to the detachment position side, the pressing portion 146 of the rotating member 140 is brought into contact with the fixed member 110, and the rotating member 140 is moved. When the pressing portion 146 presses the fixing member 110, the display unit 120 is separated from the fixing member 110. At this time, the urging member 150 that has shifted from the urging position side urging to the detaching position side urging urges the rotating member 140 to the detaching position.
[0058]
Next, as shown in FIG. 8D, the display unit 120 is further moved away from the fixing member 110 and the rotating member 140 is brought into contact with the rotating member moving portion 180 when the fixing member 110 is detached. The rotating member 140 is rotated to the fixed position side by the rotating member moving unit 180 when the fixing member 110 is detached. At this time, the urging member 150 urges the rotating member 140 to the disengaged position.
[0059]
Next, as shown in FIG. 8E, the display unit 120 is further moved away from the fixing member 110, and the rotating member 140 is fixed by the rotating member moving unit 180 when the fixing member 110 is detached. The biasing member 150 is moved to the position side to shift the biasing member 150 from the detachment position side bias to the fixed position side bias. Thereby, the urging member 150 urges the rotating member 140 to the fixed position, and rotates the rotating member 140 to the fixed position. Then, the display unit 120 is further moved away from the fixing member 110, the rotating member 140 is moved away from the fixing member 110, and the process ends.
[0060]
As described above, in the present embodiment, the rotating member 140 can be engaged with the fixed member 110 to fix the display unit 120 to the fixed member 110, and the rotating member 140 is separated from the fixed member 110. Since the display unit 120 can be separated from the fixing member 110 by being separated from each other, the attaching operation and the detaching operation can be facilitated, and can be reliably fixed at the time of attachment.
[0061]
Moreover, since the rotation member 140 can be rotated from the back surface 122 side, attachment work and removal work can be performed from the back side of the display device.
[0062]
Moreover, in this Embodiment, since the rotation member 140 can be rotated from the display surface 121 side, attachment work and removal work can be performed from the front side of a display apparatus.
[0063]
Furthermore, since the opening 124 for inserting the jig and rotating the rotating member 140 can be closed, the intrusion of water and dust can be prevented.
[0064]
In the present embodiment, since the opening forming member 123 includes the seal member 125, the opening 124 can be more reliably closed.
[0065]
Furthermore, when the display unit 120 is fixed to the fixing member 110, the rotation of the rotating member 140 can be prevented, so that the rotating member 140 can be prevented from being detached from the fixing member.
[0066]
Further, even when the engaging portion 144 is insufficiently engaged with the engaged portion 160, the auxiliary engaging portion 145 can be engaged with the engaged portion 160, and the display unit 120 is prevented from falling off. Can do.
[0067]
Furthermore, when the display unit 120 is fixed to the fixing member 110, the rotating member 140 can be moved to the first position, so that the attaching operation can be facilitated.
[0068]
Further, when the display unit 120 is detached from the fixing member 110, the rotating member 140 can be moved to the first position, so that the next mounting operation can be facilitated.
[0069]
Furthermore, since the display unit 120 can be separated from the fixing member 110 when the display unit 120 is detached from the fixing member 110, the detaching operation can be facilitated.
[0070]
Furthermore, since the display unit 120 can be fixed at an accurate position, the attaching operation can be facilitated, and the configuration for determining the position of the display unit 120 can be simplified.
[0071]
In the present embodiment, four sets of display unit side fixing mechanisms 190 including the support member 130, the rotating member 140, and the biasing member 150 are arranged on the peripheral portion of the display unit 120. However, the arrangement and quantity of the display unit side fixing mechanism 190 are merely examples, and can be arbitrarily configured according to conditions such as the size of the display device.
[0072]
In the present embodiment, the fixing member side fixing mechanism 191 configured to include the engaged portion 160, the fixing rotation member moving portion 170, and the disengaging rotation member moving portion 180 is a display unit side fixing mechanism. Corresponding to 190, four sets are arranged on the peripheral edge of the fixing member 110. However, the arrangement and quantity of the fixing member side fixing mechanism 191 is an example, and the conditions such as the size of the display device are taken into account. It can be arbitrarily configured accordingly.
[0073]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a display device having an effect of facilitating attachment work and removal work.
[Brief description of the drawings]
1 is a cross-sectional view of main parts of a display device according to an embodiment of the present invention. FIG. 2 is a perspective view of main parts of a display unit of a display device according to an embodiment of the present invention. FIG. 4 is a perspective view of a main part of a fixing member of a display device according to an embodiment. FIG. 4 is a perspective view of a display device according to an embodiment of the invention. FIG. 6 is a cross-sectional view of the main part showing the mounting operation of the display device according to one embodiment of the present invention. FIG. 8 is a cross-sectional view of the main part showing the detachment operation of the display device according to the embodiment of the present invention. FIG. 9 is a cross-sectional view of a latch mechanism of a conventional display device.
100 Display device 110 Fixing member 120 Display unit 121 Display surface (second surface)
122 Back side (first side)
123 Opening member 124 Opening 125 Sealing member 126 Positioning member 130 Supporting member 140 Rotating member 141 Rotating shaft 142 Closing portion 144 Engaging portion 145 Auxiliary engaging portion 146 Pressing portion 150 Energizing member 160 Engaged portion 170 When fixed Rotating member moving unit 180 Rotating member moving unit when detached

Claims (8)

A fixing member for mounting the display unit;
A rotating member that rotates between a first position that engages with the fixing member and a second position that is spaced apart from the fixing member, and a bias that biases at the first position and the second position. A display unit having a member and a support member that supports the rotating member with a rotating shaft when the rotating member rotates;
The urging member has one end attached to an urging member attaching portion provided on the support member, and the other end attached to an urging member attaching shaft provided on the rotating member,
The display unit is fixed to the fixing member by the rotating member engaging with the fixing member, and the display unit is detached from the fixing member by separating the rotating member from the fixing member. Configured,
When the display unit is fixed to the fixing member, the fixing member abuts on a pressing portion provided on the rotating member, thereby causing the rotating member in the second position to move to the first position. A display device comprising a stationary rotation member moving portion for moving to the position. The fixing member moves the rotating member in the second position to the first position when the rotating member abuts when the display unit is detached from the fixing member. The display device according to claim 1, further comprising an hour rotating member moving unit.   The rotation member includes a pressing portion that presses the fixing member to release the display unit from the fixing member when the display unit is detached from the fixing member. The display device according to claim 2.   The display unit includes a first surface on which the support member is disposed, a second surface located on a back surface of the first surface, and an opening forming member that forms an opening, and the rotation The member has a closing part that closes the opening at the first position, and rotates from the second surface side through the opening to the closing part through the opening. The display device according to claim 3.   The fixing member has an engaged portion, and the rotating member has an engaging portion that engages with the engaged portion, and an auxiliary engaging portion that is arranged in parallel with the engaging portion. The display device according to any one of claims 1 to 4, wherein   The fixing member has an engaged portion, the rotating member has an engaging portion that engages with the engaged portion, and the distal end of the engaging portion and the rotating shaft of the rotating member The distance between the first member and the second member is set to be smaller than the distance between the tip of the engaged portion and the rotating shaft of the rotating member. The display apparatus in any one of. The display device according to claim 4 , wherein the opening forming member has a seal member at least at a portion where the closing portion abuts on the first surface side.   The display device according to claim 1, wherein the display unit includes a positioning member that determines a position of the display unit with respect to the fixing member.

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