Classifications

• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
  • G09F11/18—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being carried by belts, chains, or the like other than endless
  • G09F11/21—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being carried by belts, chains, or the like other than endless the elements being flexible sheets
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
  • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
  • G09F15/005—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels for orientation or public information

Definitions

• the present invention relates to display devices. More particularly, the invention relates to a display device comprising: - a display face, at least one electronic screen arranged in correspondence with at least part of the display face, - several posters adapted to be presented successively to the level of the display face to be visible by an observer looking at the display face, - lighting means adapted to illuminate said posters, an automatic device for changing posters adapted to successively present the posters at the level of the display face, in front of the electronic screen, said posters comprising at least a first poster which has an optically transparent window (hollowed out or formed by a transparent solid material) through which the electronic screen is visible to said observer looking at the display side.
• a display device comprising: - a display face, at least one electronic screen arranged in correspondence with at least part of the display face, - several posters adapted to be presented successively to the level of the display face to be visible by an observer looking at the display face, - lighting means adapted to illuminate said posters, an automatic device for changing posters adapted to successively
• Document FR-A-2 793 061 describes an example of such a display device, which gives full satisfaction in terms of its operation.
• the object of the present invention is in particular to further improve display devices of this type, in particular in order to allow better visibility of the display and better efficiency when the ambient light is high: indeed, in this case, the electronic screen may become less visible to an observer looking at the display side.
• a display device of the kind in question is characterized in that the posters include at least one second poster without an optically transparent window in correspondence with the electronic screen, and in that the device poster change is adapted to present at least said second poster at the .
• the second poster in question can advantageously occupy the entire display face, or else obscure only the electronic screen, in which case said second poster can be presented at the face of display in conjunction with a poster with an optically transparent window corresponding to the electronic screen). Thanks to these provisions, when the display face receives a significant illumination, one can present to the public, on the second poster, a clearly visible display despite this important illumination.
• the second poster has a format substantially identical to the first poster; - the second poster has a display identical to the first poster; the poster changing device comprises an electronic central unit adapted to automatically present the second poster at the display face as a function of an ambient light measurement carried out by an optical sensor; the poster changing device comprises an electronic central unit adapted to automatically present the second poster at the display face as a function of the time; the display device comprises lighting means for lighting the posters from the rear; the electronic screen is chosen from a plasma screen and a liquid crystal screen; - the posters constitute successive portions of a flexible strip, the poster changing device being adapted to scroll this flexible strip with respect to the display face in order to selectively present one of the posters at this face display; the display device further comprises directional sound emission means; the lighting means are adapted to backlight the posters.
• FIG. 1 is a perspective view of a display device according to an embodiment of the invention
• FIG. 2 is a schematic view in vertical section of the display device of FIG. 1
• - Figure 3 is a view similar to Figure 1, showing the display device in its operating state corresponding to high ambient light
• Figure 4 is a block diagram of the control circuit corresponding to the display device Figures 1 to 3 ..
• the same references designate identical or similar elements.
• Figures 1 and 2 show a device display 1, for example in the form of a display panel intended to be placed in a public place, for example a public thoroughfare, an airport, a station, a shopping center, etc.
• the display device 1 comprises a closed, rigid external trunk 2, which can for example rest on the ground by means of a leg 2a, or which can if necessary be fixed to a wall or the like.
• the external trunk 2 has a front face or display face, provided with a transparent opening 3, generally closed by a window 4.
• posters 5 are presented successively. be for advertising or general information purposes.
• the posters 5 can be made of paper, or in the form of a translucent synthetic sheet, which can advantageously be backlit by means of light bars 2b or the like.
• the posters 5 are, over most of their surface, sufficiently opaque for an observer located outside the trunk 2 to be unable to see the interior of this trunk through the posters.
• part of the surface of some of the posters 5 is constituted by an optically transparent window 6, which makes it possible to see an interior electronic screen 7 through the poster 5.
• the window ⁇ can be constituted for example by a sheet of transparent flexible synthetic material, but if necessary, said window 6 could be constituted by a simple opening hollowed out in the poster 5.
• This window 6 has a rectangular shape in the example shown in the drawings, but said window could have any other desired geometric shape and / or any other dimension and / or any other position within the poster -5.
• the electronic screen 7, for its part, may for example be a plasma screen, liquid crystal, light emitting diode, cathode ray tube, or other, fixed for example inside the trunk 2 on a support structure 7a .
• the screen 7 can, if necessary, be moved inside the trunk 2 in one or two directions, manually or automatically, and / or the image presented by the screen 7 may have a variable format, so as to be able to adapt to posters 5 having windows 6 arranged differently and / or of different formats. As shown in FIG.
• the posters 5 can be united in the form of a flexible strip 8 wound on two motorized rollers 9, which make it possible to successively present the posters 5 at the display face of the display device , that is to say behind the window 4.
• the strip of posters 8 also includes posters 5 devoid of such windows, therefore opaque over substantially their entire surface, which can be presented behind the glass 4 by covering the screen 7, in particular when the illumination of the front face of the display device is too great for the electronic screen 7 to be clearly visible to the public.
• the poster strip 8 may comprise pairs of identical posters 5, one of the posters of each pair being provided with the optically transparent window 6 while the other poster 5 of the same pair has the same display but over its entire surface.
• the display device 1 could comprise only posters 5 with optically transparent windows 6 in the strip 8: in this case, the display device would also include a second set of smaller scrolling posters (not shown), this second set of scrolling posters being interposed between the screen 7 and the display 5 being presented through the window 4.
• the second set of scrolling displays may be provided by example at least one optically transparent window (hollow or made of a transparent material) adapted to be placed in front of the screen 7 when said screen 7 must be made visible to the public, and at least one opaque poster adapted to cover this screen 7 when said screen 7 must no longer be visible to the public.
• the posters of this second set of posters could be complementary to the posters 5 of the strip 8, so that, when a poster 5 and the corresponding poster are simultaneously presented. of the second set of posters behind the glass 4, these two posters together form the same image extending behind the whole of the glass 4.
• the display device 1 can advantageously be controlled by a electronic central unit 10 (UC), which may in particular comprise a microprocessor MP, a memory MEM and a clock H.
• the microprocessor MP controls the operation of the screen 7, and in particular the broadcasting by this screen, of a program of display (video, series of photographs, animations, etc.).
• the central unit 10 also controls the movement of the posters 5 (and if necessary the movement of the second set of posters mentioned above).
• the microprocessor MP can optionally be connected to all or part of the following elements: - a reader 11 (L) adapted to read a code 5b carried by the posters 5 and identifying these posters, for example an optically readable bar code or a code of another nature, 5 - a data carrier reader 12 ( DR), such as a CD-ROM, DVD, floppy disk, magnetic tape, or other reader, making it possible in particular to load the display program to be presented by the screen 7, - a telecommunications interface 13 (COM ), 10 such as a modem associated with a wired telephone line or with a radio telecommunication device, in particular for loading the screen display program 7, - control circuits of the motors 14, 15 (Ml, M2 ) adapted to drive the rollers 9,
• the central unit 10 presents 5 behind window 4, either a poster 5 provided with a transparent window 6 (at the hours of the day corresponding to low ambient light and / or when the sensor 16 detects low ambient light), or a poster 5 without window 0 transparent 6 (at the hours of the day corresponding to high ambient light and / or when the optical sensor 16 detects an ambient light above a predefined threshold), - when the central unit 10 displays 5 behind the window 4 a poster 5 with a window optically transparent 6, the central unit 10 preferably displays on the screen 7, a display corresponding to the poster 5 being presented (for this purpose, the central unit 10 can if necessary identify the poster 5 during
• the display panel 1 can possibly be provided with sound emission means such as loudspeakers 17, for example in number two or more, ordered for example by the central unit 10 (see FIG. 4), for broadcasting a sound program corresponding to the visual program broadcast by the screen 7.
• sound emission means 17 can advantageously be made directive in order to limit the sound broadcast to a predetermined area 18 in front panel 1 (see Figure 1), in particular in order to limit noise pollution for the environment.
• This directivity can be obtained in particular by the intrinsic characteristics of directivity of the loudspeakers 17, and / or by a processing of the signal upstream of the loudspeakers 17 (as described for example in the document EP-B-0842508), and / or by one or more sound deflectors, for example in the form of a dome situated above the zone 18 (as described for example in document WO-A-95/12960).
• the sound emission means can be either arranged on the display panel 1, as in the example above, be separated from this panel and arranged nearby.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)
• Control Of Indicators Other Than Cathode Ray Tubes (AREA)
• Diaphragms For Electromechanical Transducers (AREA)
• Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
• Vehicle Body Suspensions (AREA)
• Control Of El Displays (AREA)
• Control Of Gas Discharge Display Tubes (AREA)
• Illuminated Signs And Luminous Advertising (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (2)

Family

ID=33515514

Family Applications (1)

Country Status (8)

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Citations (5)

• 2003
  • 2003-06-30 FR FR0307875A patent/FR2856831B1/fr not_active Expired - Fee Related
• 2004
  • 2004-06-24 DK DK04767454T patent/DK1639572T3/da active
  • 2004-06-24 ES ES04767454T patent/ES2279431T3/es active Active
  • 2004-06-24 PT PT04767454T patent/PT1639572E/pt unknown
  • 2004-06-24 DE DE602004003822T patent/DE602004003822T2/de not_active Expired - Fee Related
  • 2004-06-24 WO PCT/FR2004/001605 patent/WO2005004092A2/fr active IP Right Grant
  • 2004-06-24 AT AT04767454T patent/ATE349055T1/de not_active IP Right Cessation
  • 2004-06-24 EP EP04767454A patent/EP1639572B1/fr active Active

Patent Citations (5)

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