JP2009030438A - Display device and display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device and display unit which can be managed easily, and safely offer high visual effects. <P>SOLUTION: The display unit 1 includes the display device 10 placed on a road 2, and a convex laid rubber 30. The display device 10 is composed of an elastic display member 11, a lift device 12 which moves up and down the display member 11, a frame box 13 (13A, 13B), and a control box 14. The lift device 12 and the frame box 13 are housed in a recession 3 formed on the road 2. The display device 10 is capable of automatically switching to a housed state in which the display member 11 is housed in the recession 3 and to a display state in which the display member 11 projects out of the road 2. Because the display member 11 is elastic and is so mounted as to be bendable relative to the lift device 12, the display member 11 is hardly damaged even if hit by a vehicle. The display member 11, therefore, can be displayed at a position of highly visibility. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device having a display member such as a signboard or a sign.

  Conventionally, a method of providing information to a passerby or a driver of a vehicle by installing a display member such as a signboard or a sign is used. For example, you can advertise a store by installing a stand signboard or standing signboard that indicates “on sale” at the storefront, or install a triangular cone or safety fence on the road to For example, the driver is notified that entry is prohibited.

In addition, a vehicle entry prohibition device has been proposed in which a display board that is connected to the bottom of the tread board and displays an entry prohibition indication appears on the road by raising one end of the tread board arranged on the road (Patent Document). 1). In this device, the information on the display board described above can be provided to the driver by raising one end of the tread board that prohibits entry of the vehicle.
JP 2006-241723 A

  The above-mentioned signs, triangle cones, safety fences, etc. must be installed and removed by the administrator each time they are used, and space for storing these signs is required, which is very inconvenient to manage. there were.

  On the other hand, in the vehicle entry prohibition device of Patent Document 1 described above, since the display board is stored in the ground, it is not necessary to provide a separate storage space, and the management work of the administrator is facilitated by setting an operation timer or the like. I can.

  However, in this vehicle entry prohibition device, the height of the raised end of the tread is such that the height of the raised end of the tread is prevented in order to prevent contact with the bumper and to allow the vehicle to ride on the tread. Patent Document 1 describes that the height of the sheet should be set to 10 to 15 cm. If the treadle is raised to a height higher than this, the above-mentioned purpose will not be achieved, and it will be extremely dangerous for a driver of a vehicle (particularly a single vehicle etc.) who has overlooked the existence of the vehicle entry prohibition device.

  Therefore, the position of the display board is limited to the height or less due to the restriction of the height of the tread board. That is, in the said vehicle entry prohibition apparatus, the visibility of the display board was bad and the display function could not be utilized effectively.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a display device and a display unit that can be easily managed and can obtain a high visual effect safely.

  The invention according to claim 1, which has been made to solve the above-described problem, is a display device including an elastic display member and a moving unit that moves the display member between a storage state and a display state. is there. The storage state here is a state in which at least a part of the display member is stored in a recess formed on a predetermined surface, and the display state is a state where the display member is larger than the storage state from the recess. It is in a protruding state. The display member is attached to the moving means via the bent portion so as to be bent. Moreover, the control means which controls a moving means and makes a display member move is provided.

  With the display device configured as described above, the display member can be housed in the recess when display by the display member is not performed, and switching between the display state and the housing state can be performed by the control device. Space management, installation of display members, removal work, etc. are unnecessary, and management becomes easy.

  Moreover, since the display member has elasticity and the display member is attached to the moving means so as to be bendable, the risk when the display member greatly protrudes from the recess is very small. For example, even when the display member comes into contact with the traveling vehicle, the display member itself is deformed and the display member bends with respect to the moving means, so that the impact at the time of contact can be released. It becomes difficult to damage. Since it is comprised in this way, when making a display member protrude from a recessed part, the restriction | limiting of the height from a viewpoint of safety becomes small. Therefore, even if it is a case where it is arrange | positioned in places with danger, such as a collision, a display member can be protruded to a position with good visibility, and a high visual effect can be acquired.

  As described above, the display device can be easily managed, and a high visual effect can be obtained safely.

  The display member described above may be information on information such as a signboard or a sign, or may be a plate, column, pipe, or the like that does not have special characters or image information.

  In addition, the elastic region in the display member may be a part of the display member or the entire display member.

  Moreover, the target object in which the said display apparatus is arrange | positioned is not specifically limited. For example, it can be installed on roads, floors and walls of buildings, special vehicles and equipment. Therefore, the predetermined surface described above can be, for example, a road, a floor surface or a wall surface of a building, an outer peripheral surface of a special vehicle or a housing (body) of equipment, and the like. In addition, the specific configuration of the recess is not particularly limited as long as at least a part of the display member can be accommodated inward from a predetermined surface. For example, it may be a space such as a hole formed on a road or a floor surface, and if the predetermined surface is a surface in a plate-like member such as a wall surface or an outer peripheral surface of a housing, the back surface from the predetermined surface The hole connected to and the space on the back surface thereof become a recess.

  The moving means described above includes a holding member that holds the display member so as to be movable within a predetermined range, and a power source that moves the display member, and a specific configuration thereof is not particularly limited. . For example, it is conceivable to use a hydraulic pump, an air compressor, an electric motor or the like as the power source.

  The position where the above-mentioned moving means is arranged is not particularly limited. For example, the moving means may be disposed in the recess, and for this purpose, the moving means may be configured to be disposed in the recess as in the display device according to claim 2.

  With the display device configured as described above, since the moving means is housed in the concave portion, the portion that protrudes on the predetermined surface is reduced, and other work on the predetermined surface is prevented from being hindered. While being able to do, it can suppress deteriorating the surrounding aesthetics. Note that, when the display member and the moving means are both housed in the recess in the storage state, it is convenient because the influence on the outside is extremely small when the display member does not perform display.

  The moving means described above may be arranged in a frame box that can be arranged in the recess, as in the display device according to claim 3.

  With the display device configured as described above, the display device can be installed in the recess by attaching the frame box to the recess, so that it is not necessary to install the components of the moving means in the recess. The display device can be easily installed.

  Further, the frame box includes an inner frame box and an outer frame box as in the display device according to claim 4, and the moving means may be arranged in the inner frame box. .

  If it is a display device comprised in this way, the display member attached to the moving means and a moving means can be taken out from a recessed part by removing an inner side frame box. Therefore, it is not necessary to work in the recess and to take out each component of the moving means at the time of work such as maintenance, and the work becomes very simple.

  By the way, the specific structure of the bending part mentioned above is not specifically limited. For example, the bending portion is composed of a rotating shaft provided in the moving means and a bearing provided in the display member, and the display member is configured to bend with respect to the moving means by rotating around the rotating shaft. Conceivable. Other than that, it is conceivable to configure like the display device according to claim 5.

  The display device according to claim 5 is characterized in that the bent portion has an elastic region having elasticity, and the bending of the elastic region realizes bending of the display member with respect to the moving means.

  If it is a display device comprised in this way, a display means can be hold | maintained with respect to a moving means so that bending | flexion is possible. In addition, since the bent portion has elasticity, the display means is easily returned to the original position by the elastic force after the display means is bent, so that it is not necessary for the administrator to return the display means after bending. Management becomes easier.

  The display device according to claim 6 is characterized in that the display member includes a monitoring camera.

  If it is a display device comprised in this way, the surrounding situation can be checked from a display member viewpoint. Thereby, for example, when a display member is damaged due to contact with a display member, it is possible to clearly grasp what is in contact with the display device.

  The display device according to claim 7 is characterized in that the display member includes an illumination lamp.

  If it is a display apparatus comprised in this way, the visibility of a display member can be improved by lighting an illumination lamp.

  The display device according to claim 8 is characterized in that a display plate for displaying information on the display member is attached so as to be replaceable.

  The display device configured as described above is convenient because the information to be displayed can be changed by replacing the display board, and it is not necessary to replace the display member.

  The display device according to claim 9 is characterized in that when there is an input to the control means or when preset, the control means controls the moving means to move the display member.

  With the display device configured as described above, the administrator can immediately operate the display member by inputting to the control means, and can set the operation time in advance so that the administrator can operate the display member at the desired timing. There is no need to input to the control means, and management becomes easy.

  According to a tenth aspect of the present invention, there is provided a display device comprising a display member having elasticity and being attached to a predetermined surface through a bendable portion.

  In the display device configured as described above, since the display member has elasticity and the display member is attached to bendable with respect to a predetermined surface, the display member is damaged even if it collides with something. Therefore, the danger when the display member protrudes greatly from the predetermined surface is very small. Therefore, even when the display member is disposed in a place where there is a danger such as a collision, the display member can be disposed at a position away from the predetermined surface to a position with good visibility, and a high visual effect can be obtained. .

  Note that the display device may be configured such that a monitoring camera, an illumination lamp, or the like is attached to the display member.

  Invention of Claim 11 is a display unit which consists of a display apparatus arrange | positioned on a road, and the convex-shaped installation body arrange | positioned on the road, Comprising: The said display apparatus is Claim 1- Claim. 10. A display device according to any one of 10 above.

  If the display unit is configured in this manner, the presence of the display device can be notified in advance by the convex laying body, so that the display device is not overlooked, and the driver can more safely display the information on the display member. You will be able to get

Embodiments of the present invention will be described below with reference to the drawings.
(1) Configuration of Display Unit As shown in FIG. 1, the display unit 1 in this embodiment includes a display device 10 disposed on the road 2 and a convex laying rubber 30.

  As shown in FIG. 2, the display device 10 includes a display member 11, an elevating device 12, a frame box 13 (inner frame box 13 </ b> A, outer frame box 13 </ b> B), and a control box 14. The elevating device 12 and the frame box 13 are housed in a recess 3 formed on the road 2.

  The display member 11 is a substantially rectangular plate-like member whose main surface expands in the vertical and horizontal directions, and is formed of synthetic rubber whose interior is reinforced with a wire, and has elasticity. In addition, the material will not be specifically limited if it has elasticity.

  On both front and rear surfaces of the display member 11, display boards 15 marked “not closed” are attached so that a passerby and a driver can visually recognize that the road is closed. Yes. The display board 15 is attached to the display member 11 with screws or the like, and the display content can be changed by replacing the display board 15.

  In the vicinity of the upper end portion of the display member 11, a monitoring camera 16 for photographing the front-rear direction is provided. A plurality of illumination lamps 17 arranged in the left-right direction are provided near the upper and lower ends of the display member 11.

  Further, an upper frame 11 a that covers the upper end portion of the display member 11 and a lower frame 11 b that covers the lower end portion of the display member 11 are attached to the display member 11. The upper frame 11a and the lower frame 11b are formed of a material having higher rigidity than the display member 11, protects the monitoring camera 16 and the illuminating lamp 17, and unnecessary distortion of the shape of the display member 11 (display member). 11) and the like. Furthermore, the upper frame 11a is covered with a film having elasticity, and absorbs an impact when it comes into contact with a vehicle or a passerby.

  Each of the inner frame box 13A and the outer frame box 13B described above is formed in a box shape having an upward opening. As shown in FIG. 3, the outer frame box 13B is disposed in contact with the recess 3, and the inner frame box 13A is disposed so as to overlap the outer frame box 13B. A plurality of intermediate members 13C are provided on the inner side surface of the outer frame box 13B, and are configured to reduce friction with the inner frame box 13A.

  Further, an opening for draining water is formed at the lower ends of the inner frame box 13A and the outer frame box 13B, and the lower end opening of the outer frame box 13B is connected to the drain pipe 40. Thereby, the water that has entered the inner frame box 13A and the outer frame box 13B during the rain or the like is discharged to the outside.

  An elevating device 12 is disposed inside the inner frame box 13A (see FIG. 3). Then, when the inner frame box 13A is removed from the outer frame box 13B, the display member 11 and the lifting device 12 can be taken out from the recess as shown in FIG.

  As shown in FIG. 2, the elevating device 12 described above is fixed to a pair of hydraulic cylinder units 18 including cylinders (not shown) that move in the vertical direction and the cylinders, and in the left-right direction that holds the display member 11. The holding member 19 extends and the bending member 20 is attached to the holding member 19.

  The cylinder of the hydraulic cylinder unit 18 moves up and down according to the operation of a hydraulic pump (not shown), and moves the holding member 19 up and down. When the holding member 19 moves downward, as shown in FIG. 5A, the display member 11 is stored in the recess 3. On the other hand, when the holding member 19 moves upward, as shown in FIG. 5B, the display member 11 is in a display state in which it completely protrudes from the recess 3. In the storage state, the upper end of the display member 11 is substantially the same height as the surface of the road 2.

  The bending member 20 is a member having a length in the left-right direction that is arranged side by side in the left-right direction on the holding member 19, and is formed of synthetic rubber. The lower end of the bending member 20 is attached to the upper surface of the holding member 19. Moreover, the upper end of the bending member 20 is attached to the lower end of the display member 11, and is supported so that the display member 11 stands upright.

  The bending member 20 has elasticity. Therefore, when a load in the front-rear direction is applied to the display member 11, the bending member 20 is bent, so that the display member 11 falls in the front-rear direction with respect to the lifting device 12 as shown in FIG. 6.

  As shown in FIGS. 1 and 2, the control box 14 described above is disposed outside the outer frame box 13B, and receives an operation signal from an operation panel 21 having a plurality of switches and a wireless device (not shown). An antenna 22 and a control device and an image storage device (not shown) are provided.

  The control box 14 is electrically connected to a monitoring camera 16, an illumination lamp 17, and a hydraulic pump (not shown) that operates the hydraulic cylinder unit 18. Then, the control device performs an input operation on the operation panel 21 such as storage of data captured by the monitoring camera 16 in the image storage device, lighting control of the illumination lamp 17, and vertical movement of the display member 11 by the hydraulic cylinder unit 18. This is executed when an operation signal is received through the antenna 22.

  Further, the control box 14 has a timer function, and can automatically perform lighting control of the illumination lamp 17 and vertical movement of the display member 11 at a set time.

As shown in FIG. 1, the convex laying rubber 30 is a member having a substantially arcuate cross section having a length in a direction (B direction in FIG. 1) intersecting the road traveling direction (A direction in FIG. 1). A plurality of display devices 10 are arranged along the A direction.
(2) Effects The following effects can be obtained with the display unit 1 having the above-described configuration.
(A) Improvement of management simplicity The display device 10 having the above-described configuration can automatically switch between a storage state in which the display member 11 is stored in the recess 3 and a display state in which the display member 11 protrudes on the road. Therefore, installation of a signboard, a safety fence, etc., removal work, etc. become unnecessary.

  Since the display device 10 except for the control box 14 is housed in the outer frame box 13B, the display device 10 can be installed in the recess 3 by attaching the outer frame box 13B to the recess 3. Therefore, it is not necessary to install the constituent elements of the elevating device 12 in the recess 3, and the display device 10 can be easily installed.

  Furthermore, since the lifting device 12 is housed in the inner frame box 13A housed in the outer frame box 13B, when removing the display member 11 and the lifting device 12, it is only necessary to remove the inner frame box 13A. Maintenance work, replacement work of the display board 15 and the like become very simple.

Further, since the display member 11 and the bending member 20 are formed of an elastic body, the display member 11 is bent due to collision with the vehicle 4 or the like, and the bending member 20 is bent. Return to position. Therefore, there is no need to perform the operation of returning the bending of the display member 11 and the bending of the bending member 20.
(B) Improvement of visibility In the display device 10 described above, the display member 11 is in a position protruding upward from the surface of the road 2 in the display state, so that it is easy for the driver of the vehicle 4 as shown in FIG. Can be visually recognized.

  Further, since the illumination lamp 17 is lit on the display member 11, the presence of the display member 11 can be emphasized to the driver or pedestrian, and the visibility becomes very high.

Further, when the vehicle passes over the convex laying rubber 30, it is possible to alert the driver in advance by the impact, so that the presence of the display member 11 can be appealed, and oversight of the display member 11 can be suppressed.
(C) Improvement of safety With the display device 10 described above, even if the vehicle 4 accidentally contacts the display member 11, the bending member 20 is deformed and the display member 11 is deformed as shown in FIG. Is bent with respect to the lifting device 12, and the elastic display member 11 also absorbs the impact. Even when the driver of the vehicle 4 deliberately collides with the display member 11, the display member 11 falls to a position along the road 2 as shown in FIG. 11 can be overcome. Further, even when the lifting device 12 is in contact with the vehicle 4 while moving the display member 11, as shown in FIG. 8C, the display member 11 itself is bent to absorb the impact.

  As described above, since the vehicle 4 and the display device 10 are prevented from being damaged by the impact, the driver's injury due to the impact when the vehicle 4 and the display device 10 are in contact with each other, or the display device 10 is damaged and scattered. Injuries to nearby passersby due to contact with shards and the like are suppressed.

As described above, since sufficient safety measures are taken, the vehicle can be placed in a place where there is a risk of collision such as a road on which the vehicle passes, and the display member 11 protrudes from the road surface to a position with high visibility. Can be made.
(D) Other effects In the case of the display device 10 described above, the display member 11 and the lifting device 12 are stored in the recess 3 in the stored state, so that there is no portion protruding on the road 2. For this reason, it is possible to prevent the traffic on the road 2 from being obstructed and to impair the surrounding aesthetics.

  Further, even when the confined vehicle 4 escapes when the display member 11 is in the display state or when an emergency vehicle or the like passes, the display member 11 is pushed down by the vehicle 4 and passes as shown in FIG. can do.

  Further, since the monitoring camera 16 is attached to the display member 11, it is possible to check the surrounding situation from the viewpoint from the display member 11. Thereby, for example, when the vehicle touches the display member 11 and damages the display member 11, or when the vehicle intrudes while ignoring the entry prohibition regulations, it is easy to obtain information such as the number of those vehicles. Become.

Further, since the upper end of the display member 11 and the road surface are substantially the same height in the storage state, the gap of the recess 3 on the road is reduced, and the vehicle is also used outside the restricted time zone (that is, in the display state). And pedestrians can pass through without any discomfort.
(3) Other Embodiments Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can take various forms as long as they belong to the technical scope of the present invention. Needless to say.

  For example, the scene where the display device 10 is installed is not limited to a road. Further, the content of the display board 15 attached to the display member 11 is not limited to “passage”.

  Examples of installation locations include floors near the entrances of stores and public facilities, floors and walls in factories and buildings, parking lots, construction sites, and dangerous areas that occur according to the weather (for example, flooding during rainfall) Dangerous areas) can be considered.

  In addition, examples of display contents and usage include signboards that explain or promote products, information boards for facilities, information on closed days, closed days, entry prohibition indications, and directions in the halls and parking lots. In factories and parking lots, it can be used for separating the arrangement space of articles and vehicles.

  Moreover, in the said embodiment, although the display member 11 illustrated the structure which is a substantially rectangular plate shape, the specific structure is not specifically limited. For example, the display member 31 may have a columnar shape such as a cylinder or a prism, or a configuration using a U-shaped pipe-shaped display member 31 having elasticity as shown in FIG.

  Moreover, when an emergency vehicle passes, as shown in FIG. 11, it is good also as a structure which moves to a accommodation state by the radio | wireless communication from the radio | wireless communication apparatus 32 with which the emergency vehicle 5 (for example, ambulance) is equipped. By comprising in this way, when the emergency vehicle 5 passes, the administrator does not need to perform any operation and can pass the emergency vehicle 5 smoothly.

  Moreover, in the said embodiment, although the structure which reduces the clearance gap of the recessed part 3 was illustrated by having the upper end of the display member 11 in a accommodated state become substantially the same as the height of the surface of the road 2, the upper end surface of the display member 11 is shown. The structure formed as a surface parallel to the road 2 may be sufficient. By comprising in that way, the clearance gap of the road 2 in a storage state can be made smaller.

  Moreover, it is good also as a structure which provides a lid | cover in the upper opening in 13 A of inner side frame boxes or the outer side frame box 13B mentioned above.

  Further, the region having elasticity in the display member 11 may be a partial region of the display member 11.

  Moreover, in the said embodiment, although the structure which uses a hydraulic pump as a motive power source of the raising / lowering apparatus 12 was illustrated, the structure which uses an air compressor, an electric motor, etc. may be sufficient.

  Moreover, in the said embodiment, although the structure which bends the display member 11 with respect to the raising / lowering apparatus 12 by bending the bending member 20 was illustrated, if the display member 11 can be bent with respect to the raising / lowering apparatus 12, The specific configuration is not particularly limited.

  For example, the lifting device 12 may include a rotation shaft extending in the left-right direction, and the display member 11 may be rotatably supported around the rotation shaft.

  Moreover, although the structure which moves the display member 11 with the raising / lowering apparatus 12 was illustrated in the said embodiment, the structure which attaches a display member directly to a road surface without using the raising / lowering apparatus 12 may be sufficient. For example, as shown in FIG. 12A, a configuration in which the display member 11, the monitoring camera 16, and the illumination lamp 17 similar to those in the above-described embodiment are provided and attached to the road surface of the road 2 through the bending member 20 can be considered. If it is a display device comprised in this way, high visibility and high safety can be obtained. In addition, as shown in FIG.12 (b), it may replace with the display member 11 in the structure of the said FIG.12 (a), and you may comprise so that the pipe-shaped display member 33 which has elasticity may be used.

  Further, as shown in FIG. 12C, a U-shaped pipe 34 having no elasticity is attached to the road 2 through the bending member 20 and is fitted into a hole 35 formed in the road 2. The structure provided with the lock member 36 attached to the pipe 34 so that a movement to the state and the state which does not fit the hole 35 may be sufficient. Conventionally, U-shaped pipes that do not have elasticity are either completely fixed to the road 2 or can be removed from the road by unlocking with a key. However, with the above-described configuration, the pipe 34 can be simply moved to a position where the lock member 36 is not fitted to the hole 35 when the pipe 34 is to be temporarily lowered, for example, when a vehicle passes over the pipe 34. It can be defeated and is convenient.

The perspective view which shows the display unit of this invention A perspective view showing a display device Side view showing embedded state of outer frame box Side view showing the state of taking out the outer frame box Side view showing movement of display member Side view showing bent state of display member Side view showing high visibility of display member Side view showing the bending action when the vehicle contacts the display member Side view showing a state where the vehicle pushes down the display member The perspective view which shows other embodiment of a display apparatus. Side view showing another embodiment of a display device The perspective view which shows other embodiment of a display apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Display unit, 2 ... Road, 3 ... Recessed part, 4 ... Vehicle, 5 ... Emergency vehicle, 10 ... Display apparatus, 11 ... Display member, 12 ... Lifting device, 13 ... Frame box, 13A ... Inner frame box, 13B ... Outer frame box, 13C ... interspace, 14 ... control box, 15 ... display board, 16 ... monitoring camera, 17 ... illuminating lamp, 18 ... hydraulic cylinder unit, 19 ... holding member, 20 ... bending member, 21 ... operation panel, DESCRIPTION OF SYMBOLS 22 ... Antenna, 30 ... Convex-laying rubber, 31 ... Display member, 32 ... Wireless communication apparatus, 33 ... Display member, 34 ... Pipe, 35 ... Hole, 36 ... Lock member, 40 ... Drain pipe

Claims (11)

A display member having elasticity;
Between the storage state in which at least a part of the display member is stored in a recess formed on a predetermined surface, and the display state in which the display member protrudes from the recess larger than the storage state. Moving means for moving the display member;
A display device comprising:
The display member is attached to the moving means via a bent portion so as to be bent.
A display device comprising control means for controlling the moving means to move the display member. The display device according to claim 1, wherein the moving unit is configured to be disposed in the recess. A frame box that can be arranged in the recess,
The display device according to claim 1, wherein the moving unit is disposed in the frame box. The frame box is composed of an inner frame box and an outer frame box,
The display device according to claim 3, wherein the moving unit is arranged in the inner frame box. The bending portion includes an elastic region having elasticity, and the bending of the elastic region realizes the bending of the display member with respect to the moving unit. A display device according to any one of the above. The display device according to any one of claims 1 to 5, wherein the display member includes a monitoring camera. The display device according to any one of claims 1 to 6, wherein the display member includes an illumination lamp. The display device according to any one of claims 1 to 7, wherein a display plate for displaying information is attached to the display member in a replaceable manner. 9. The control device according to claim 1, wherein the control device controls the moving device to move the display member when an input is made to the control device or when the control device is preset. The display apparatus in any one. A display member having elasticity;
The display device, wherein the display member is attached to a predetermined surface via a bendable bending portion. A display device arranged on the road;
A convex laying body disposed on the road,
The display unit according to any one of claims 1 to 10, wherein the display unit is a display unit.

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