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WO1996012998A1 - Projection system - Google Patents

Projection system Download PDF

Info

Publication number
WO1996012998A1
WO1996012998A1 PCT/EP1994/003460 EP9403460W WO9612998A1 WO 1996012998 A1 WO1996012998 A1 WO 1996012998A1 EP 9403460 W EP9403460 W EP 9403460W WO 9612998 A1 WO9612998 A1 WO 9612998A1
Authority
WO
WIPO (PCT)
Prior art keywords
computer
liquid crystal
crystal screen
projection device
projection
Prior art date
Application number
PCT/EP1994/003460
Other languages
German (de)
French (fr)
Inventor
Jan Batal
Original Assignee
Jan Batal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jan Batal filed Critical Jan Batal
Priority to PCT/EP1994/003460 priority Critical patent/WO1996012998A1/en
Publication of WO1996012998A1 publication Critical patent/WO1996012998A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1645—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being suitable to be used in combination with an external overhead projector
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1654—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being detachable, e.g. for remote use

Definitions

  • the invention relates to a projection device for graphics or the like arranged on a flat transparent support.
  • the object of the invention is to provide measures for the optional display of rigid or movable graphics or the like. using overhead projectors.
  • the support of the graphics or the like is formed by a translucent liquid crystal screen which can be placed on a translucent or transparent flat worktop arranged in the projection beam path of an overhead projector and which is connected to the computer of a computer, laptop or notebook.
  • the liquid crystal screen can preferably be formed by a display of a laptop or notebook reduced by the contrast plate.
  • the projection of rigid or moving graphics or the like. possible, the graphics or the like. are arbitrarily changeable by the computer.
  • the well-known use of a variety Number of foils, for example lectures or presentations, is eliminated, which also leads to the elimination of environmentally harmful foil waste.
  • the projection can be in black and white or in color.
  • the liquid crystal screen and the computer are connected to one another by flexible electrical conductors. It is also possible to use the liquid crystal screen and the computer in another way, e.g. to bring them together by infrared radiation.
  • FIG. 1 is a perspective view of a laptop with a computer and a liquid crystal display screen
  • Fig. 2 shows a projection device, in perspective.
  • 1 denotes the computer of a laptop 2 or notebook, on which a display 3 is arranged so that it can be swiveled and removed.
  • the display 3 has a liquid crystal screen 4, which is gripped behind by a removable contrast plate. 2, the display 3 is removed from the computer 1 and the contrast plate of the display 3 is removed from the liquid crystal screen 4.
  • the liquid crystal screen 4, which is thus transparent from both sides, is placed on the work surface 5 of an overhead projector 6. With its connecting frame 4 ', the liquid crystal screen 4 is connected to the computer 1 of the laptop 2 or notebook by electrical conductors 7.
  • the graphics 10 or the like appearing on the liquid crystal screen 4. can now be projected onto an image surface 9 by means of the optical device of the overhead projector 6 via a deflecting mirror 8.
  • the computer 1 By means of the computer 1 is the graphic or the like. changeable on the liquid crystal screen, whereby a high flexibility in the presentation of graphics or the like, for example for lectures, can be achieved. There is also the possibility of using the pointer of a mouse or a trackball (not shown) of the computer 1 to bring up displays on the liquid cell screen to illustrate details which appear on the screen 9 by projection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Liquid Crystal (AREA)

Abstract

In a projection system for projecting graphic charts or the like which are laid on a flat transparent base, it is proposed that, for the projection of still or moving graphics, the base should be a translucent liquid crystal screen (4) which can be laid on the translucent or transparent flat worktop (5) lying in the projection path of an overhead projector, and that the liquid crystal screen should be connected to the processor (1) of a computer, laptop (2) or notebook.

Description

ProjektionseinrichtungProjection device
Die Erfindung betrifft eine Projektionseinrichtung für auf einem flachen durchsichtigen Träger angeordneten Graphiken od.dgl..The invention relates to a projection device for graphics or the like arranged on a flat transparent support.
Es ist bekannt als Träger für Graphiken od.dgl. durch¬ sichtige Folien zu verwenden und auf Projektionseinrich¬ tungen mit ebener Arbeitsplatte, sogenannten Overhead- projektoren zum Einsatz zu bringen. Die Verwendung von Folien als Träger der Graphiken od.dgl. zeigt sich dabei als arbeitsaufwendig und ermöglicht nur starre Projek¬ tionen. Ferner sind zur Kenntlichmachung von Detials der projizierten Graphiken od.dgl. Zeigestäbe oder Licht¬ strahlgeräte erforderlich.It is known as a support for graphics or the like. to use transparent foils and to use them on projection devices with a flat worktop, so-called overhead projectors. The use of foils as a support for the graphics or the like. shows itself to be labor-intensive and only enables rigid projections. Furthermore, for identifying details of the projected graphics or the like. Pointers or light beam devices required.
Aufgabe der Erfindung ist die Schaffung von Maßnahmen zur wahlweisen Darstellung starrer oder beweglicher Gra¬ phiken od.dgl. unter Verwendung von Overheadprojektoren.The object of the invention is to provide measures for the optional display of rigid or movable graphics or the like. using overhead projectors.
Der Erfindung gemäß ist diese Aufgabe dadurch gelöst, daß der Träger der Graphiken od.dgl. durch einen licht¬ durchlässigen Flüssigkristallbildschirm gebildet ist, der auf einer im Projektionsstrahlengang eines Overhead- projektors angeordneten durchscheinenden oder durchsich¬ tigen ebenen Arbeitsplatte auflegbar und mit dem Rechner eines Computers, Laptops oder Notebooks verbunden ist. Bevorzugt kann der Flüssigkriεtallbildschirm durch ein um die Kontrastplatte vermindertes Display eines Laptops oder Notebooks gebildet sein. Auf diese Weise ist die Projektion starrer oder beweglicher Graphiken od.dgl. möglich, wobei die Graphiken od.dgl. vom Rechner belie¬ big veränderbar sind. Die bekannte Benutzung einer Viel- zahl Folien, z.B. zu Vorträgen oder Präsentationen ent¬ fällt, was auch zu einem Fortfall von umweltbelastendem Folienmüll führt. Die Projektion kann in schwarz/weiß oder farbig erfolgen.According to the invention this object is achieved in that the support of the graphics or the like. is formed by a translucent liquid crystal screen which can be placed on a translucent or transparent flat worktop arranged in the projection beam path of an overhead projector and which is connected to the computer of a computer, laptop or notebook. The liquid crystal screen can preferably be formed by a display of a laptop or notebook reduced by the contrast plate. In this way, the projection of rigid or moving graphics or the like. possible, the graphics or the like. are arbitrarily changeable by the computer. The well-known use of a variety Number of foils, for example lectures or presentations, is eliminated, which also leads to the elimination of environmentally harmful foil waste. The projection can be in black and white or in color.
In Ausgestaltung der Projektionseinrichtung ist vorge¬ sehen, daß der Flüssigkristallbildschirm und der Rechner durch flexible elektrische Leiter miteinander verbunden sind. Auch ist es möglich den Flüssigkristallbildschirm und den Rechner in anderer Weise, z.B. durch Infrarot¬ strahlung miteinander in Verbindung zu bringen.In an embodiment of the projection device, it is provided that the liquid crystal screen and the computer are connected to one another by flexible electrical conductors. It is also possible to use the liquid crystal screen and the computer in another way, e.g. to bring them together by infrared radiation.
Schließlich ist eine umständliche Benutzung von Zeige¬ stäben zur Hervorhebung von Details der projizierten Graphik od.dgl. dadurch unnötig, daß Details durch die Anzeige der Maus oder des Trackballs des Rechners er¬ kennbar gemacht werden können.Finally, laborious use of pointers to highlight details of the projected graphic or the like is necessary. unnecessary in that details can be made recognizable by the display of the mouse or the trackball of the computer.
Wie die Erfindung ausführbar ist, zeigt das m der Zeichnung dargestellte Ausführungsbeispiel. Hierin bedeuten:The embodiment shown in the drawing shows how the invention can be carried out. Here mean:
Fig. 1 einen Laptop mit einem Rechner und einem Flüs¬ sigkristallbildschirm aufweisenden Display in perspektivischer Darstellung und1 is a perspective view of a laptop with a computer and a liquid crystal display screen, and
Fig. 2 eine Projektionseinrichtung, perspektivisch.Fig. 2 shows a projection device, in perspective.
In den Fig. ist mit 1 der Rechner eines Laptops 2 oder Notebooks bezeichnet, an dem ein Display 3 schwenkbeweg¬ lich abnehmbar angeordnet ist. Das Display 3 weist einen Flüssigkristallbildschirm 4 auf, der durch eine abnehm¬ bare Kontrastplatte hintergriffen ist. In Fig. 2 ist das Display 3 vom Rechner 1 abgenommen und die Kontrastplatte des Displays 3 vom Flüssigkristall¬ bildschirm 4 entfernt. Der auf diese Weise von beiden Seiten lichtdurchlässige Flüssigkristallbildschirm 4 ist auf die Arbeitsplatte 5 eines Overheadpro.ektors 6 auf¬ gelegt. Mit seinem Anschlußrahmen 4' ist der Flüssig¬ kristallbildschirm 4 durch elektrische Leiter 7 mit dem Rechner 1 des Laptops 2 oder Notebooks verbunden. Die auf dem Flüssigkristallbildschirm 4 erscheinenden Gra- phiken 10 od.dgl. können nunmehr vermittels der opti¬ schen Einrichtung des Overheadprojektors 6 über einen ümlenkεpiegel 8 auf eine Bildfläche 9 projiziert werden. Vermittels des Rechners 1 ist die Graphik od.dgl. auf dem Flüssigkristallbildschirm veränderbar, wodurch eine hohe Flexibilität in der Vorführung von Graphiken od. dgl., z.B. zu Vorträgen erzielbar ist. Außerdem besteht die Möglichkeit, vermittels des Zeigers einer Maus oder eines Trackballs (nicht gezeigt) des Rechners 1 Anzeigen zur Verdeutlichung von Details auf dem Flüssigkπstall- bildschir aufzubringen, die durch Projektion auf der Bildfläche 9 erscheinen. In the figures, 1 denotes the computer of a laptop 2 or notebook, on which a display 3 is arranged so that it can be swiveled and removed. The display 3 has a liquid crystal screen 4, which is gripped behind by a removable contrast plate. 2, the display 3 is removed from the computer 1 and the contrast plate of the display 3 is removed from the liquid crystal screen 4. The liquid crystal screen 4, which is thus transparent from both sides, is placed on the work surface 5 of an overhead projector 6. With its connecting frame 4 ', the liquid crystal screen 4 is connected to the computer 1 of the laptop 2 or notebook by electrical conductors 7. The graphics 10 or the like appearing on the liquid crystal screen 4. can now be projected onto an image surface 9 by means of the optical device of the overhead projector 6 via a deflecting mirror 8. By means of the computer 1 is the graphic or the like. changeable on the liquid crystal screen, whereby a high flexibility in the presentation of graphics or the like, for example for lectures, can be achieved. There is also the possibility of using the pointer of a mouse or a trackball (not shown) of the computer 1 to bring up displays on the liquid cell screen to illustrate details which appear on the screen 9 by projection.

Claims

Patentansprüche claims
1. Projektionseinrichtung für auf einem flachen durch¬ sichtigen Träger angeordneten Graphiken od.dgl., dadurch gekennzeichnet, daß der Träger durch einen lichtdurch¬ lässigen Flüssigkristallbildschirm (4) gebildet ist, der auf einer im Projektionsstrahlengang eines Overheadpro- jektors (6) angeordneten durchscheinenden oder durch¬ sichtigen ebenen Arbeitsplatte (5) auflegbar und mit dem Rechner (1) eines Computers, Laptops (2) oder Notebooks verbunden ist.1. Projection device for graphics or the like arranged on a flat transparent support, characterized in that the support is formed by a translucent liquid crystal screen (4) which is arranged on a translucent arranged in the projection beam path of an overhead projector (6) or transparent planar worktop (5) and connected to the computer (1) of a computer, laptop (2) or notebook.
2. Projektionseinrichtung nach Anspruch 1, dadurch ge¬ kennzeichnet, daß der Flüssigkristallbildschirm (4) durch ein um die Kontrastplatte vermindertes Display (3) eines Laptops (2) oder Notebooks, gebildet ist.2. Projection device according to claim 1, characterized ge indicates that the liquid crystal screen (4) by a reduced by the contrast plate display (3) of a laptop (2) or notebook is formed.
3. Projektionseinrichtung nach Anspruch 1, dadurch ge¬ kennzeichnet, daß der Flüssigkristallbildschirm (4) und der Rechner (1) durch flexible elektrische Leiter (7) miteinander verbunden sind.3. Projection device according to claim 1, characterized in that the liquid crystal screen (4) and the computer (1) are connected to one another by flexible electrical conductors (7).
4. Projektionseinrichtung nach Anspruch 1, dadurch ge¬ kennzeichnet, daß der Flüssigkristallbildschirm (4) und der Rechner (1) durch Infrarotstrahlung miteinander ver¬ bindbar sind.4. Projection device according to claim 1, characterized in that the liquid crystal screen (4) and the computer (1) are interconnectable by infrared radiation.
5. Projektionseinrichtung nach Anspruch 1 und 2, da¬ durch gekennzeichnet, daß Details der projizierten Gra¬ phik (10) od.dgl. durch die Anzeige der Maus oder des Trackballs des Rechners (1) erkennbar sind. 5. Projection device according to claim 1 and 2, da¬ characterized in that details of the projected graphics (10) or the like. can be recognized by the display of the mouse or the trackball of the computer (1).
PCT/EP1994/003460 1994-10-21 1994-10-21 Projection system WO1996012998A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/003460 WO1996012998A1 (en) 1994-10-21 1994-10-21 Projection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/003460 WO1996012998A1 (en) 1994-10-21 1994-10-21 Projection system

Publications (1)

Publication Number Publication Date
WO1996012998A1 true WO1996012998A1 (en) 1996-05-02

Family

ID=8165904

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/003460 WO1996012998A1 (en) 1994-10-21 1994-10-21 Projection system

Country Status (1)

Country Link
WO (1) WO1996012998A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337134A (en) * 1998-05-06 1999-11-10 Sunflower Systems Inc Projector for LCD with lens supporting arm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534652A1 (en) * 1985-09-28 1987-04-09 Joachim Dipl Ing Mueller Device for alphanumeric or graphic display of information
USRE33229E (en) * 1986-03-06 1990-06-05 C.L.I.C. Electronics International, Inc. Remote display device for a microcomputer with optical communication
US5041965A (en) * 1990-08-10 1991-08-20 Rever Computer Inc. Laptop computer with detachable display for overhead projector
DE4019755A1 (en) * 1990-06-21 1992-01-09 Triumph Adler Ag ELECTRONIC DATA STORAGE AND PROCESSING ARRANGEMENT, ESPECIALLY LAPTOP, WITH A DISPLAY ARRANGEMENT
EP0510814A1 (en) * 1991-04-23 1992-10-28 Seiko Epson Corporation Detachable display device for an information processing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534652A1 (en) * 1985-09-28 1987-04-09 Joachim Dipl Ing Mueller Device for alphanumeric or graphic display of information
USRE33229E (en) * 1986-03-06 1990-06-05 C.L.I.C. Electronics International, Inc. Remote display device for a microcomputer with optical communication
USRE33229F1 (en) * 1986-03-06 1999-11-16 C L I C Electronics Internatio Remote display device for a microcomputer with optical communication
DE4019755A1 (en) * 1990-06-21 1992-01-09 Triumph Adler Ag ELECTRONIC DATA STORAGE AND PROCESSING ARRANGEMENT, ESPECIALLY LAPTOP, WITH A DISPLAY ARRANGEMENT
US5041965A (en) * 1990-08-10 1991-08-20 Rever Computer Inc. Laptop computer with detachable display for overhead projector
EP0510814A1 (en) * 1991-04-23 1992-10-28 Seiko Epson Corporation Detachable display device for an information processing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337134A (en) * 1998-05-06 1999-11-10 Sunflower Systems Inc Projector for LCD with lens supporting arm

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