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WO1996012998A1 - Dispositif de projection - Google Patents

Dispositif de projection 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
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP1994/003460
Other languages
German (de)
English (en)
Inventor
Jan Batal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/EP1994/003460 priority Critical patent/WO1996012998A1/fr
Publication of WO1996012998A1 publication Critical patent/WO1996012998A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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

Dispositif de projection pour graphiques ou analogues disposés sur un support plan transparent, dans lequel il est prévu que, pour assurer la représentation de graphique fixes ou mobiles, le support soit constitué d'un écran transparent à cristaux liquides (4) qui peut être appliqué sur une plaque de travail plane, translucide ou transparente (5) disposée sur le chemin de projection d'un rétroprojecteur (6), et qui est relié au processeur (1) d'un ordinateur, d'un ordinateur portatif (2) ou d'un ordinateur bloc-notes.
PCT/EP1994/003460 1994-10-21 1994-10-21 Dispositif de projection Ceased WO1996012998A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/003460 WO1996012998A1 (fr) 1994-10-21 1994-10-21 Dispositif de projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1994/003460 WO1996012998A1 (fr) 1994-10-21 1994-10-21 Dispositif de projection

Publications (1)

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

Family

ID=8165904

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/003460 Ceased WO1996012998A1 (fr) 1994-10-21 1994-10-21 Dispositif de projection

Country Status (1)

Country Link
WO (1) WO1996012998A1 (fr)

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 (de) * 1985-09-28 1987-04-09 Joachim Dipl Ing Mueller Vorrichtung zur alphanumerischen oder graphischen anzeige von informationen
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 (de) * 1990-06-21 1992-01-09 Triumph Adler Ag Elektronische datenspeicher- und verarbeitungsanordnung, insbesondere laptop, mit einer anzeigeanordnung
EP0510814A1 (fr) * 1991-04-23 1992-10-28 Seiko Epson Corporation Ecran détachable pour un appareil d'information électronique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534652A1 (de) * 1985-09-28 1987-04-09 Joachim Dipl Ing Mueller Vorrichtung zur alphanumerischen oder graphischen anzeige von informationen
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 (de) * 1990-06-21 1992-01-09 Triumph Adler Ag Elektronische datenspeicher- und verarbeitungsanordnung, insbesondere laptop, mit einer anzeigeanordnung
US5041965A (en) * 1990-08-10 1991-08-20 Rever Computer Inc. Laptop computer with detachable display for overhead projector
EP0510814A1 (fr) * 1991-04-23 1992-10-28 Seiko Epson Corporation Ecran détachable pour un appareil d'information électronique

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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