WO2004102512A2

WO2004102512A2 - Display device comprising a wall-type or column-type housing

Info

Publication number: WO2004102512A2
Application number: PCT/EP2004/005354
Authority: WO
Inventors: Vaso Kacavenda; Frank Albert; Nebojsa Kacavenda
Original assignee: Vaso Kacavenda; Frank Albert; Nebojsa Kacavenda
Priority date: 2003-05-19
Filing date: 2004-05-18
Publication date: 2004-11-25
Also published as: WO2004102512A3; DE10322790A1

Abstract

The invention relates to a display device comprising a wall-type or column-type folding housing (102, 104, 106; 202, 204, 206), a projector (110; 210) that is arranged inside said housing, and a housing aperture for accommodating a rear projection surface (108; 208). A projection space is embodied within the housing.

Description

Display device with a wall or columnar housing

Description

The invention relates to a display device with a wall or column-like housing, in particular for use as an information terminal or for presentations, in particular for integration into a trade fair building wall.

So-called information terminals are known from the prior art, which are set up, for example, in public places. From such information terminals, a user can, for example, query timetable information, tourist information, shopping opportunities or the like.

In addition, exhibition walls are known, in which a screen for visual product information or other presentations is integrated. Corresponding stand construction systems are commercially available, for example, from NOMADIC GmbH (www.nomadicdisplav.com) and are known from the following US patents: US 3968808, US 4280521, US 4512097, US 4522008, US 4561618, US 4637180, US 4747239 and US 4800663 Such previously known exhibition walls have a foldable frame which is implemented as a scissor folding system. Sol- Before scissor folding systems are also referred to as a folding display or pop-up display.

Other suppliers of exhibition walls with scissor folding systems are EXPO (www.expodisplavservice.com). EXPAND (www.expand.se), ABEX

(www.abex.com) and OCTANORM (www.octanorm.com).

Cathode ray screens are usually used for such previously known information terminals and exhibition stand systems. In particular, relatively large-format cathode ray screens are used for presentation purposes, but they have the disadvantage that they are very difficult to handle due to their weight and, on the other hand, are very cost-intensive.

An alternative is the use of large format flat screens in such exhibition stand systems. However, the disadvantage here is that such large-format flat screens are very expensive.

The invention is therefore based on the object of creating an improved display device which enables a relatively large-format display at relatively low cost and easy handling.

The object underlying the invention is solved in each case with the features of the independent claims. Preferred embodiments of the invention are specified in the dependent claims.

The invention provides a display device with a wall or column-like housing, for example for use as an information terminal, for presentation purposes and / or for integration into a trade fair construction wall.

A projector is arranged inside the housing. The projector is preferably a digital projector, for example for connection to one Computer or other analog or digital data source, such as a video or DVD player.

Such digital projectors are also known as projectors and are commercially available, for example, from 3M (for example, 3M multimedia projector MP 7740i, MP 7750, MP 8749, MP 8765, MP 8790) and Viewsonic multimedia projector PJ 250, PJ 350, PJ 500 , PJ 550, PJ 551, Hitachi multimedia projector CP-S 225, CP-X 275 and NEC WT 600. Such projectors can be operated with various analog or digital video and / or audio input signals.

A rear projection surface is arranged in an opening in the housing. Such a rear projection surface is formed by an opaque, translucent material. A rear projection film or a rear projection screen can be used to implement the rear projection surface. In this way, very large projection surfaces can be realized inexpensively in comparison to cathode ray or flat screens. Such rear projection screens are commercially available, for example, from ScreenLab (www.screenlab-pro.de).

According to the invention, the projection space is completely embodied within the housing.

According to a preferred embodiment of the invention, the projector is arranged inside the housing so that the projection hits the rear projection surface directly.

According to a further preferred embodiment of the invention, at least one deflection mirror is arranged within the housing in order to realize a larger projection distance between the projector and the rear projection surface.

It is particularly advantageous in each case that the corresponding projection space is located entirely inside the housing, so that a viewer is not It is partially recognizable that the display is not generated by a conventional cathode ray or flat screen, but by means of rear projection.

Another particular advantage is that the rear projection film or the rear projection screen is very light in comparison to conventional screens, which is what

Simplify handling during assembly and transportation. This is a very significant advantage, especially for mobile exhibition stand systems.

According to a preferred embodiment of the invention, the projector is directed essentially vertically upwards onto the deflecting mirror, which deflects the projection onto the rear projection surface. To achieve a larger projection distance, the projector can be aligned in the horizontal direction, the projection being deflected from the horizontal direction to the first deflecting mirror by a second deflecting mirror, from where the projection onto the rear projection area takes place.

According to a further preferred embodiment of the invention, the display device has a frame for fastening trim parts. The trim parts can be attached to the frame, for example, through through holes in the frame, with magnetic clips or other fastening means.

According to a further preferred embodiment of the invention, the display device can be integrated into a stand construction system. In this case, the housing is open on at least one side, the side or ends being formed by adjoining exhibition wall elements.

It is particularly advantageous that the frame of the display device is foldable and is designed in particular as a scissor folding system. On the one hand, this enables the display device to be transported easily and, on the other hand, it can be set up quickly. This is a particular advantage, in particular for trade fair and presentation purposes, since the display device can be quickly assembled and disassembled with little human effort. In particular, the assembly and disassembly of the display device for example, for a presentation by the lecturer himself in a short time, so that the need for appropriate staff is eliminated. Because of this, the display device according to the invention is also particularly cost-effective.

Another aspect of the invention relates to a kit for a display device. The kit includes a foldable frame, in particular for fastening trim parts, as well as for fastening at least one deflecting mirror and for receiving a projector. A projection space for projecting images onto a rear projection surface is formed in the built-up frame by the deflecting mirror. The frame is preferably designed as a scissor folding system.

Such a kit for a display device is particularly advantageous for use for trade fairs, events, presentations, information events, point-of-sales and mobile information terminals.

According to a further preferred embodiment of the invention, the display device or the kit has rail elements for fastening to the frame on both sides. The rail elements are designed to accommodate carrier elements which are used to fasten the projector and the first and, if appropriate, the second deflecting mirror in the interior of the housing.

According to a further preferred embodiment of the invention, at least one of the rail elements, preferably at least two opposite elements, serves to receive one or more fastening elements of the rear projection surface. For example, hook-shaped fastening elements are arranged on the back of the rear projection surface, which are hooked into the rail elements.

According to a further preferred embodiment of the invention, the rail elements each have a perforated strip for receiving the carrier elements and / or the fastening elements. According to a further preferred embodiment of the invention, the rail elements are permanently magnetic. Cladding parts that are provided with appropriate ferro-electromagnetic strips can be conveniently attached to the rail elements.

Preferred embodiments of the invention are explained in more detail below with reference to the drawings. Show it:

FIG. 1 shows a first embodiment of a display device according to the invention,

FIG. 2 shows a second embodiment of a display device according to the invention,

FIG. 3 shows an embodiment of the foldable frame as a scissor folding system in the folded state,

FIG. 4 the unfolding of the frame of FIG. 3,

FIG. 5, the locking of the frame in its unfolded position,

FIG. 6 loose rail elements for fastening to the unfolded frame,

FIG. 7 shows a pair of connectors for the rail elements of FIG. 6,

8 to 10 the fastening of the elements to the unfolded frame,

11 to 16 the attachment of support elements for receiving the projector and the deflecting mirror to the unfolded frame, FIG. 17 shows a fastening element for fastening the projection surface to the unfolded frame,

Figure 18 the hanging of the projection surface in the unfolded

Frame,

FIGS. 19 to 21 the attachment of trim parts to the unfolded frame,

FIG. 22 shows a column-like embodiment, for example for use as a so-called information terminal,

Figure 23 shows an embodiment as a trade fair construction wall.

FIG. 1 shows a display device 100. This is, for example, a free-standing information terminal or an integral part of a trade fair construction wall.

The display device 100 has a frame 102 which is foldable. 1 shows the frame 102 in the unfolded state. Cladding parts 104 and 106 are fastened to the frame 102. There is an opening in the front covering part 104 for receiving a rear projection surface 108. The rear projection surface 108 is, for example, an opaque, translucent rear projection film or a rear projection screen.

A digital projector 110 is arranged in the interior of the display device 100. The projector 110 stands on a base 112 fastened in the frame 102 and is directed essentially vertically upwards. A deflection mirror 114 is arranged in the beam path of the projector 110. This is preferably a high quality surface mirror. The deflecting mirror 114 is aligned that the beam path of the projector 110 is directed onto the rear projection surface 108.

A projection space is therefore formed by the deflecting mirror 114 in the interior of the volume of space described by the frame 102.

Figure 2 shows an alternative embodiment. Elements in FIG. 2 which correspond to elements in FIG. 1 are identified by reference numerals increased by 100.

In contrast to the display device 100 in FIG. 1, an additional deflecting mirror 216 is arranged in the display device 200 in FIG. The projector 210 is substantially horizontal on the floor 212, the distance between the projection lens and the deflecting mirror 216 being only a few centimeters. The deflecting mirror 216 is preferably also a high-quality surface mirror.

The deflection mirror 216 directs the beam path onto the deflection mirror 214, from where the projection in turn strikes the rear projection surface 208. Due to the longer projection distance compared to the embodiment of FIG. 1, a larger format of the rear projection can be achieved or a less powerful projector can be used.

By deflecting the beam path in the interior of the housing of the display device 100 or 200, small installation depths of less than 50 cm, preferably less than 40 cm, in particular approximately 34 cm, can be achieved. This enables complete integration into a stand construction system, in particular a stand construction wall.

The following Figures 3 to 23 relate to an embodiment of a display device according to the invention as a kit with a frame that is used as scissors folding system is formed. Elements of Figures 3 to 23, which correspond to elements of Figures 1 and 2, are identified by corresponding reference numerals.

FIG. 3 shows the frame 302 in the folded state. In this state, the frame can be easily transported in a pocket or in a suitcase. To set up the display device, the frame 302 is pulled apart by a person 303 with his hands, as shown in FIG. 3.

FIG. 4 shows the frame 302 in the unfolded state. In this state, the person 303 actuates locking or latching elements, as shown in FIG. 5.

FIG. 6 shows three loose rail elements 616, 618 and 620. These rail elements and further rail elements of the display device, not shown in FIG. 6, can also be conveniently transported in the kit in a bag or a suitcase. The rail elements 616, 618 and 620 each have a perforated strip 622 for receiving carrier or fastening elements.

FIG. 7 shows an example of the connection of the two rail elements 616 and 618. The rail elements 616 and 618 each have corresponding connection elements at their end regions, with the aid of which the rail elements 616, 618 can be inserted and locked into one another.

FIG. 8 shows the frame 302 in the unfolded and locked state, after which the person 303 has erected it into its use position. Fastening elements 824 are arranged on the frame 302 on both sides, which are each designed to engage in the through holes 624 formed by the connectors of the rail elements (cf. FIG. 7). FIG. 8 shows the corresponding assembly of the interconnected rail elements on the frame 302. FIG. 9 shows the locking of the rail elements 616 and 618 on the frame 302 by pushing the corresponding fastening elements 826 into the through holes 824.

FIG. 10 shows the mounting of the rail element 620 on the frame 302. This process is repeated several times, so that the frame 302 is provided with rail elements at different points which run essentially parallel to one another in the vertical direction.

FIG. 11 shows the attachment of further such rail elements on the other side of the frame 302 and a support element 1128.

As shown in FIG. 12, the carrier element 1128 has two hooks 1230 on both sides, which engage in two slot-shaped holes of the relevant hole strip 622 arranged one above the other.

FIG. 13 shows the frame 302 after rail elements have been fastened to each corner of frame 302 with perforated strips 622, and after support elements 1128 have been hooked in at the same height in mutually opposite, parallel pairs of rail elements.

As shown in FIG. 18, a base 1412 is placed on the carrier elements 1128. The floor 1412 serves to set up the projector and a first one of the deflecting mirrors (compare the projectors 110 and 112 in FIGS. 1 and 2 and the deflecting mirror 216 in FIG. 2). FIG. 15 shows a carrier element 1532 with hook 1230 and a recess 1534 for receiving an axis of rotation 1636 (compare FIG. 16) of a second deflecting mirror 1614 (compare deflecting mirror 114 in FIGS. 1 and 214 in FIG. 2).

FIG. 16 shows the mounting of the deflecting mirror 1614 on the already mounted support element 1532. For the mounting, the axis of rotation 1636 is inserted into the recess 1534. Preferably, two carrier elements 1532 are parallel to one another which is mounted at the same height so that the deflecting mirror 1618 is received in the area between the two support elements 1532. The deflection mirror 614 is aligned for projection onto the rear projection surface 1608 (compare the rear projection surfaces 108 and 208 of FIGS. 1 and 2, respectively).

FIG. 17 shows a fastening element 1738 for fastening the rear projection surface 1608 to the frame 302. The fastening element 1738 has a hook 1230 for hooking into a hole in one of the perforated strips 622.

As shown in FIG. 18, several such fastening elements 1738 are arranged on the rear side of the rear projection surface 1608 in order to fasten them to the rail elements of the frame 302.

The rail elements are preferably provided with a permanent magnetic coating, which is used for the convenient fastening of trim parts to the frame 302.

FIG. 19 shows the fastening of trim parts 1904 and 1906 by the person 303 to the frame 302.

FIG. 20 shows the permanent magnetic coating 2044 of the rail elements, which is used for “clipping”, for example, the covering part 1904, which has a corresponding coating of ferro-magnetic material.

As shown in FIGS. 21 to 23, appealing housing shapes can be realized by correspondingly cladding the frame 302.

FIG. 22 shows a rear view of a columnar housing shape, for example for realizing a so-called information terminal.

FIG. 23 shows a trade fair construction wall 2346 with several rear projection surfaces 2308. The frame carrying the trade fair construction wall 2346 is of modular construction and is consists of several frames 302 which are connected to one another. In addition to the rear projection surfaces 2308, the interconnected frames 302 carry various cladding parts on their outside, as shown in FIG.

It is particularly advantageous that a display device according to the invention can be implemented as a kit in the various embodiments in FIGS Projector, the rail elements as well as support and fastening elements can be conveniently packed in a bag or a suitcase. It is also of particular advantage that the assembly can be carried out with a minimum of personnel and time, since the frame can be assembled in a very short time by unfolding.

LIST OF REFERENCE NUMBERS

Display device 100 carrier element 1532

Frame 102 recess 1534

Cover part 104 axis of rotation 1636

Cover part 106 deflecting mirror 1614

Rear projection area 108 Rear projection area 1608

Projector 110 fastener 1738

Floor 112 panel 1904

Deflecting mirror 114 covering part 1906

Display device 200 coating 2044

Frame 202 exhibition wall 2346

Trim part 204 rear projection surface 2308

Trim part 206

Rear projection area 208

Projector 210

Floor 212

Deflecting mirror 214

Frame 302

Person 303

Track element 616

Track element 618

Track element 620

Perforated strip 622

Through hole 624

Fastener 826

Carrier element 1128

Hook 1230 bottom 1412

Claims

P a t e n t a n s r u c h e

Display device with a foldable frame (102) for forming a wall or column-like housing (102, 104, 106; 202, 204, 206), a projector (110; 210) arranged inside the housing and a rear projection surface (108; 208), wherein a projection space is formed within the housing.

Display device according to claim 2, with at least one mirror (114; 214, 216) for deflecting a projection onto the rear projection surface, the at least one mirror being arranged inside the housing.

3. Display device according to claim 1 or 2, wherein the projector (110) is oriented substantially vertically upwards.

4. Display device according to claim 1, 2 or 3, wherein the projector (210) is aligned substantially in the horizontal direction and a second mirror (216) for deflecting the projection on the rear projection surface is arranged inside the housing.

5. Display device according to one of the preceding claims 1 to 4, wherein the frame (102; 202) for fastening trim parts (104, 106; 204, 206), for fastening the at least one mirror (114; 214, 216) inside the Housing and is designed to accommodate the projector.

6. Display device according to claim 5, wherein the frame is designed as a scissor folding system.

7. Display device according to one of the preceding claims 1 to 6, wherein the housing can be integrated into a measuring wall.

8. Display device according to one of the preceding claims 1 to 7, wherein the housing in the assembled state has a depth of less than 50 cm, preferably less than 40 cm, in particular 34 cm.

9. Kit for a display device with a foldable frame (102; 202) for realizing a wall or column-like housing for a projection space, and with a rear projection surface (108; 208) for attachment to the frame.

10. Kit according to claim 9, wherein the frame is designed for fastening at least one deflecting mirror (114; 214, 216) inside the housing and for receiving a projector (110; 210) inside the housing.

11. Kit according to claim 10, wherein the frame is designed as a scissor folding system.

12. Kit according to claim 9, 10 or 11, wherein the housing in the assembled state has a depth of less than 50 cm, preferably less than 40 cm, in particular 34 cm.

13. Kit according to one of the preceding claims 9 to 12, with rail elements (616, 618, 620) for fastening on both sides to the frame, the rail elements being designed in pairs for receiving carrier elements (1128, 1532).

14. Kit according to claim 13, wherein first of the carrier elements for receiving a projector (110) and a first deflecting mirror (216) are formed.

15. Kit according to claim 13 or 14, wherein second of the carrier elements are designed to receive a second deflecting mirror (208).

16. Kit according to claim 13, 14 or 15, wherein at least one of the rail elements is designed to receive a fastening element (1738) for the rear projection surfaces.

17. Kit according to one of the preceding claims 13 to 16, wherein the rail elements each have a perforated strip (622) for receiving the carrier elements.

18. Kit according to one of the preceding claims 13 to 17, wherein the rail elements are permanently magnetic in order to fasten trim parts (1904, 1906) to the frame.