AU1272501A

AU1272501A - Projection wall

Info

Publication number: AU1272501A
Application number: AU12725/01A
Authority: AU
Inventors: Michael Englisch; Heinrich Iglseder; Burkhard Remmers; Jurgen Thode
Original assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
Current assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
Priority date: 1999-10-25
Filing date: 2000-10-16
Publication date: 2001-05-08
Anticipated expiration: 2020-10-16
Also published as: DE50011260D1; DE19951306A1; JP2003513307A; CN1399731A; EP1224507A1; WO2001031397A1; AU775522B2; ATE305625T1; EP1224507B1

Abstract

The invention relates to a projection wall, comprising a projector (1), a deviation mirror and an image panel (3) and characterised in that the projection wall is mobile. The arrangement of the projector, deviation mirror (2) and image panel in relation to each other (2) can be adjusted to a use position or a transport position at option and the image panel has a sensitive, interactive surface for influencing the information that is represented.

Description

Projection screen The invention relates to a projection screen with a projector, a deflecting mirror and a display panel. A projection screen with a projector, a deflecting mirror and a display panel is known in the art, wherein the information (for example data, images or other information) to be displayed on the display panel can be supplied via a computer connected to the projector. Thus the display panel has the function of a display screen connected to the computer, and in this case the display panel can be of considerably larger construction than convention display screens and consequently is suitable in particular for viewing and consideration of the displayed information by a group of people. Various projection devices are described in US-A-5 828 427, US-A-4 953 971 and US-A 4 846 694. The object of the invention is to provide a projection screen which can be used in a more versatile manner. According to the invention this object is achieved by the features of Claim 1. Further embodiments of the invention are the subject matter of the subordinate claims. The projection screen according to the invention consists essentially of a projector, a deflecting mirror and a display panel, wherein the projection screen is constructed so as to be mobile, and the relative arrangement of projector, deflecting mirror and display panel can be brought as required into a position of use or a transport position. Furthermore the display panel serves for viewing an image projected by the projector via the deflecting mirror and has a sensitive interactive surface for influencing the displayed data.

-2 In a further embodiment of the invention the display panel has a sensitive surface, and particularly a touch-sensitive surface, for influencing the displayed information. The display panel could for example have a pressure-sensitive, heat-sensitive, motion-sensitive, locally resolving or resistance-sensitive surface. Thus it is possible for the information displayed by the projector on the display panel to be accessed directly, for example by touching the surface. In a special embodiment of the projection screen the possibility exists of coupling at least two adjacent display panels of two projection screens in order to form a common full display panel. Further advantages and embodiments of the invention are explained in greater detail below with reference to the description and the drawings. In the drawings: Figure 1 shows a three-dimensional representation of the projection screen in the position of use. Figure 2 shows a side view of the projection screen in the position of use, Figure 3 shows a side view of the projection screen in the transport position, Figure 4 shows a first arrangement of a plurality of projection screens, and Figure 5 shows a second arrangement of a plurality of projection screens. The projection screen illustrated in Figures 1 to 3 consists essentially of a projector 1, a deflecting mirror 2 and a display panel 3, which are fixed on a common mounting support 4. The mounting support has rollers 5 which ensure the mobility of the projection screen. The deflecting mirror 2 for its part is fixed on a pivot arm 6 which is mounted on the mounting support 4 so as to be articulated about a pivot axis 7. In the illustrated embodiment the projector 1 is also mounted on the pivot arm 6. By pivoting of the pivot arm 6 about the -3 pivot axis 7 the relative arrangement of projector, deflecting mirror and display panel can be brought as required into a position of use (Figure 1, Figure 2) or a transport position (Figure 3). If, as in the illustrated embodiment, the deflecting mirror 2 is also fixed so that it is articulated on the pivot arm 6, it can be folded in in the transport position, as shown in Figure 3. The display panel is preferably oriented approximately vertically with respect to the base surface. The projector projects the image via the mirror 2 from the rear onto the display panel 3, and the image is then visible to a viewer from the front on the display panel. For viewing of the image projected by the projector via the deflecting mirror 2, the display panel is formed for example by a glass plate coated with a holographic film. For generation of the image data to be displayed, the projector 1 is advantageously connected to a computer. The computer (not shown in the drawings) can as required be fixed on the mounting support or can be set up at a location remote therefrom. The connection between computer and projector can be made by cable or without contact. The display panel of the projection screen is provided on the side facing a viewer with a sensitive interactive surface for influencing the displayed information. For this purpose the display panel can for example have a pressure-sensitive, heat-sensitive, motion-sensitive, locally-resolving or resistance-sensitive surface. Thus the user of the projection screen can not only view the displayed data and information but can also have a direct influence on the displayed information via the display panel. This naturally presupposes that the sensitive surface is coupled to the computer in order to recognise the correlation between the image displayed via the projector and the intervention via the sensitive surface.

-4 Thus the display panel 3 is provided on one side with a holographic surface and on the other side with a sensitive interactive surface. Thus the interaction of both surfaces makes interactive operation possible directly on the display panel. The projection screen preferably has a transmitter unit (not shown in greater detail) for transfer of data as well as a receiver unit for reception of data. Furthermore, the projection screen is connected to a computer and means are provided for communication with the computer. These communication means can be formed for example by a weighing machine by which the weight of an object placed on the weighing machine is associated with data and/or information on the display panel. The possibility also exists that the communication means are provided for identification of the user and are formed at least in part by hardware. Due to the mobility of the projection screen it is not only capable of being used alone in a versatile manner but also it can be put together with further projection screens to form a co operating complete arrangement. Two examples of such arrangements are illustrated in Figures 4 and 5. In Figure 4 three projection screens are set up adjacent to one another, so that the three display panels form one common full display panel. For this purpose each projection screen has means for coupling to an adjacent display panel. These coupling means can be formed by mechanical, electric, optical, acoustic or magnetic means. In this context combinations are also conceivable, such as for example an electromagnetic coupling. However, the coupling between two or more display panels could also be achieved by suitable software, in which case the inputs necessary therefor could be made directly via the sensitive interactive surface of the display panel. Whereas in Figure the display panels 3 are disposed in one plane, the display panels 3 in the arrangement shown in Figure 5 are oriented in a curve. Depending upon the use, any other arrangements could be chosen.

-5 The projection screens described above can be used individually or in a combination in a versatile way. In addition to the function of conventional pinboards and writing desks, the display screen is also suitable for example for displaying and processing larger drawings or plans. Also images and films can be transmitted without problems via the display panel. By means of one or more display panels which are set up for example in the arrangement shown in Figure 5, it is also possible for example to hold video conferences.

Claims

1. Projection screen with a projector (1), a deflecting mirror (2) and a display panel (3), in which the display panel serves for display of an image projected by the projector via the deflecting mirror, characterised in that the projection screen is constructed so as to be mobile, whereby the relative arrangement of projector (1), deflecting mirror (2) and display panel (3) can be brought as required into a position of use or a transport position, and that the display panel (3) has a sensitive interactive surface for influencing the displayed information.

2. Projection screen as claimed in Claim 1, characterised in that the projector (1), the deflecting mirror (2) and the display panel (3)are fixed on a common mounting support (4).

3. Projection screen as claimed in Claim 2, characterised in that the mounting support (4) is constructed so as to be movable.

4. Projection screen as claimed in Claim 2, characterised in that the deflecting mirror (2) is fixed on a pivot arm (6) which is mounted so as to be articulated on the mounting support (4), whereby by pivoting of the pivot arm (6) the deflecting mirror (2) can be brought as required into the position of use or the transport position.

5. Projection screen as claimed in Claim 4, characterised in that the projector (1) is also disposed on the pivot arm (6).

6. Projection screen as claimed in one or more of the preceding claims, characterised by means for coupling at least two display panels (3) of two adjacent projection screens in order to form a common full display panel.

7. Projection screen as claimed in one or more of the preceding claims, characterised in that the projection screen is connected to a computer. -7

8. Projection screen as claimed in Claim 1, characterised in that the projector (1) can be controlled via the computer.

9. Projection screen as claimed in one or more of the preceding claims, characterised in that the projection screen is connected to a computer and the display panel (3) has a sensitive interactive surface for influencing the displayed information, the sensitive surface being connected to the computer.

10. Projection screen as claimed in one or more of the preceding claims, characterised in that the display panel (3) has a holographic surface on one side and a sensitive interactive surface on its other side.

11. Projection screen as claimed in one or more of the preceding claims, characterised in that the projection screen also has a transmitter unit for the transfer of data.

12. Projection screen as claimed in one or more of the preceding claims, characterised in that the projection screen also has a receiver unit for the reception of data.

13. Projection screen as claimed in one or more of the preceding claims, characterised in that the projection screen is connected to a computer and furthermore means are provided for communication with the computer.

14. Projection screen as claimed in Claim 13, characterised in that the communication means have a weighing machine by which the weight of an object placed on the weighing machine is associated with data and/or information on the display panel (3).

15. Projection screen as claimed in Claim 13, characterised in that the communication means are provided for identification of the user and are formed at least in part by hardware.