Classifications

• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
  • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
  • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
  • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
  • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2300/00—Aspects of the constitution of display devices
  • G09G2300/02—Composition of display devices
  • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2320/00—Control of display operating conditions
  • G09G2320/06—Adjustment of display parameters
  • G09G2320/0693—Calibration of display systems
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
  • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
  • G09G2330/02—Details of power systems and of start or stop of display operation

Definitions

• the present invention relates to a modular LED display system for being used in combination with a sound system for light and sound therapy or for other display purposes. Furthermore, the invention relates to a display module, a plurality of which may be combined to form part of such a display system and to an application of such a display system for light and sound therapy. Background of the invention
• a general problem related to such instruments known in the art is that the users need to physically move themselves to the object, the box or the room to get the benefits from it.
• the user is dislocated from his or her familiar surroundings when receiving the treatment, which might enhance the feeling of being sick, especially if the user has to go to a hospital or a clinic for receiving the treatment.
• time must be planned ahead and spent for going to the place of treatment.
• the present invention relates to an LED module being configured for being combined with one or more similar LED modules to form at least part of an LED display system, said LED module comprising an LED panel comprising a first printed circuit board with a plurality of LEDs placed on a front side thereof and a power supply unit comprising a second printed circuit board configured for being physically connected to a back side of the LED panel.
• the abbreviation 'LED' refers to light-emitting diodes in general.
• mono-colour LEDs may be used.
• multi-colour LEDs are used, for instance in the form of the so-called RGB LEDs, which are able to emit light in practically any colour as well as white light by mixing the three colours red, green and blue.
• both mono-colour LEDs and multi-colour LEDs may be used on the same LED panel.
• the term "physically connected” is to be understood as a rigid connection, for instance by means of corresponding connector parts mounted on the two printed circuit boards, respectively.
• Such a configuration of the LED module is advantageous in that, in principle, an infinite number of modules may be combined, as each module comprises its own power supply unit, whereby the limitation on the number of LED modules defined by the capacity of one or more common power supplies is avoided.
• the LED module comprises more than one LED panel.
• the second printed circuit board of the power supply unit is physically integrated with a second printed circuit board of a power supply of another LED module into one single printed circuit board.
• the power supply unit is configured for being physically connected to a back side of an LED panel of a neighbouring LED module as well.
• the power supply unit may be used for connecting one LED module with another for transferral of, for instance, signal data.
• the LED panel is operated at a voltage between 12 V and 48 V, preferably between 24 V and 36 V.
• an image memory system is placed in electronic circuits within the LED module, for instance on the printed circuit board of the LED panel, so that information about the displayed image formed by the luminous LEDs on the LED panel is stored and the image remains displayed by the LED panel until the LED module receives information from an external controller about another image to be displayed by the LED module.
• calibration information for the individual LEDs on the LED panel correcting, for instance, for manufacturing variations is placed in electronic circuits within the LED module, for instance on the printed circuit board of the LED panel .
• Storing the calibration data for the LEDs on the LED panel within the LED module means that a given module may be placed at or moved to any given position within a larger system combining a plurality of such modules without any calibration problems occurring.
• an LED control system placed in electronic circuits within the LED module, for instance on the printed circuit board of the LED panel, is arranged to be able to configurably control the light intensity and/or the chromaticity of the individual LEDs on the LED panel according to a resolution of at least 24 bits, preferable at least 48 bits.
• an LED control system placed in electronic circuits within the LED module is arranged to be able to set the colour and intensity of the light of the individual LEDs on the LED panel to at least 6 * 2 24 different chromaticities with 2 12 different intensity levels, preferable to at least 6 * 2 different chromaticities with 2 16 different intensity levels.
• a modular LED display system comprising one or more LED modules as described above.
• the LED panels of the LED modules are mounted side by side on the front side of a mounting plate and the power supply units of the LED modules are mounted on the back side of the mounting plate, the power supply units being physically connected to the respective LED panels through holes through the mounting plate.
• Mounting the LED panels on one side and the power supply units on the other side of a mounting plate is advantages in that it allows for filling all of the space on the front side of the mounting plate with LED panels carrying the LEDs used for forming the displayed image.
• a plurality or all of the LED panels are mounted on the same common mounting plate.
• the common mounting plate may be used as a structural part of the LED display system.
• the mounting plate is made from a material with a thermal conductivity of more than 100 W/(m °C), such as aluminium or an alloy containing aluminium. Producing the mounting plate from aluminium or another material with high thermal conductivity allows it to be used as a heat sink for the electronic circuits mounted thereon.
• a plurality of LED modules are connected in series, so that power connections and/or signal connections for subsequent LED modules in the series, if any, passes through any given LED module, preferably through the power supply unit thereof.
• Arranging the LED modules so that they are physically connected in one or more series allows for a simplification of the electric structures of the LED display system.
• a computer controllable light and colour therapy panel comprising a modular LED display system as described above, which panel is arranged so that the light of each of the LEDs of the LED display system may be controlled and changed in chromaticity and/or intensity.
• the modular LED display system is arranged to be able to emit and combine or change between artificial daylight and coloured or multi-coloured light.
• the computer controllable light and colour therapy panel further comprises an integrated sound system.
• sound system is to be understood as a system including loudspeakers that can be controlled by a computer to play music or soundscapes, said soundscapes being different sound sequences arranged together to form modular landscapes of sound.
• the sound system enables for sound treatment in combination with light treatment and ensures that the light and colour therapy panel is able to provide a comfortable and ambient surrounding sound.
• the sound system and the modular LED display system can be operated separately from each other.
• the sound system and the modular LED display system can be operated in coordination with each other.
• the computer controllable light and colour therapy panel further comprises suspension arrangements for suspending the panel from a ceiling or from a wall.
• the suspension arrangements comprise wires for conveying electric power and/or data signals to the panel.
• Suspending the panel at least partly in the wires for conveying electric power and/or data signals to the panel reduces the amount of parts and materials needed for construction the panel.
• the computer controllable light and colour therapy panel is arranged so that the chromaticity and/or intensity of the light of the individual LEDs can be varied according to certain predefined and/or specified sequences, which are known to have a desirable effect on persons looking at the varying light patterns.
• the computer controllable light and colour therapy panel is arranged so that the intensity of the sound from the sound system can be varied according to certain predefined and specified sequences, which are known to have a desirable effect on persons listening to the sound.
• the computer controllable light and colour therapy panel is arranged so that the light and sound patterns can be individualized by means of a control system having an interface and a database.
• This option enables professionals and/or users to save any session and use it again or to improve and evolve a session over time.
• the computer controllable light and colour therapy panel is arranged so that the light and sound patterns can be customized and saved on a personal chip.
• This option allows a user to bring a session to another place of treatment or back home for repeated use, for instance together with a smaller version of the panel.
• the computer controllable light and colour therapy panel is arranged so that the light and sound patterns can be customized and saved in a password protected database. This option allows professionals and/or users to get access to the history of a treatment comprising a series of sessions.
• the computer controllable light and colour therapy panel further comprises a connection to an outside wind sensor that registers the strength of the wind and is arranged to transfer the registered wind strengths into changes of light intensity and chromaticity and of the sounds emitted by the panel.
• the computer controllable light and colour therapy panel further comprises a connection to a sensor for registering the level of activity in the space, in which the panel is installed, and is arranged to transfer this information into changes of light intensity and chromaticity and of the sounds emitted by the panel. This option allows for an adjustment of the activity of the panel to the activity in the surrounding space.
• the computer controllable light and colour therapy panel further comprises a connection to a light sensor for registering the intensity of the light in the space, in which the panel is installed, and is arranged to transfer this information into changes of light intensity and chromaticity and of the sounds emitted by the panel.
• This option allows for an adjustment of the activity of the panel to the intensity of the light in the surrounding space.
• the computer controllable light and colour therapy panel further comprises a front cover made at least partly from a vacuum-formed plastic material.
• fig. 1 is a perspective view of an LED panel of an LED module according to an embodiment of the invention as seen from the front side
• fig. 3a is a perspective view of the LED panel shown in fig. 1 as seen from the back side with the power supply unit shown in fig. 2 mounted thereon
• fig. 3b is a side view of the LED panel shown in fig. 1 with the power supply unit shown in fig. 2 mounted on the backside thereof
• fig. 4a is a perspective view of a LED display system according to an
• fig. 4b is a rear view of the LED panel shown in fig. 4a
• fig. 5a is a perspective view of a LED module according to an embodiment of the invention as seen from the back side
• fig. 5b is a rear view of the LED module shown in fig. 5a
• fig. 6 is a perspective view of the front cover of a light and colour therapy panel according to an embodiment of the invention.
• Fig. 1 shows a perspective view of the front side of an LED panel 1 of an LED module 6 according to an embodiment of the invention.
• the LED panel 1 basically consists of a printed circuit board 2 and a power supply unit 5 (not shown in fig. 1.).
• the main components on the front side of the printed circuit board 2 are a plurality of LEDs 3.
• a couple of connectors 4 arranged on the back side of the printed circuit board 2 for connecting the LED panel 1 to other similar LED panels (not shown) are also visible in fig. 1.
• the LEDs 3 may be distributed in any imaginable way on the surface of the printed circuit board 2. For practical reasons and for compatibility with existing norms for digital displays, however, they are preferably uniformly distributed in a quadratic pattern across the surface of the printed circuit board 2 as illustrated in fig. 1.
• the distance from the outermost LEDs 3 to the edge of the printed circuit board 2 is chosen so that, when the LED panel 1 is connected to one or more other similar LED panels (not shown), the distance between two neighbouring LEDs 3 placed on two neighbouring LED panels 1, respectively, corresponds to the distance between two neighbouring LEDs 3 placed on the same LED panel 1.
• the LED panel 1 is fully scalable in the sense that for any given number of LEDs 3 on the printed circuit board 2, the size of the LED panel 1 depends directly on the chosen pixel size, i.e. on the centre distance between two neighbouring LEDs 3 on the LED panel 1.
• the minimum pixel size is defined by the physical size of the LEDs 3, while the maximum pixel size depends on the available dimensions of printed circuit boards.
• Fig. 2 shows a perspective view of a power supply unit 5 of an LED module 6 according to an embodiment of the invention.
• the power supply unit 5 is designed to be connected to the LED panel 1 of the LED module 6 on the back side thereof.
• 3 a and 3b show a perspective view and a side view, respectively, of the back side of the LED panel 1 shown in fig. 1 with the power supply unit 5 shown in fig. 2 mounted thereon.
• the power supply unit 5 is mounted centrally on the printed circuit board 2, which is equipped with four connectors 4 for interconnection of the LED panel 1 physically and electrically with one or more similar LED panels (not shown).
• the power supply unit 5 may be designed to be connected to the back side of the LED panel 1 of a neighbouring LED module as well so that the power supply unit 5 constitutes a physical and electrical connection between the two LED panels 1.
• the connectors 4 may be omitted.
• a plurality of LED modules 6 may be connected to each other to form together at least a part of a modular LED display system 11.
• the LED panel 1 and the power supply unit 5 of a given LED module may be mounted on opposite sides of a mounting plate and connected to each other through holes through the mounting plate.
• the mounting plate is made from aluminium or another material with a relatively high thermal conductivity so that the mounting plate may be used as a heat sink for the electronics of the LED modules 6.
• a plurality or all of the LED modules 6 of such a modular LED display system 11 may preferably be mounted on the same common mounting plate.
• Figs. 4a and 4b illustrate an LED display system 11 according to an embodiment of the invention, comprising four LED modules, marked with the suffices a, b, c and d, respectively, on the reference numbers in these two figures.
• each of the LED modules a-d comprises two LED panels 1 and one power supply unit 5.
• Each of the power supply units 5a-5d is connected to the two LED panels 1 of the same LED module through connectors 9.
• Figs. 4a and 4b illustrate how two of the power supply units 5a and 5c each are connected to an LED panel lb, Id of a neighbouring LED module (b and d, respectively) through connectors 10.
• Figs. 5a and 5b illustrate an LED display system 11 according to another
• each of the LED modules a and b comprises two LED panels 1 and one power supply unit 5.
• Each of the power supply units 5a and 5b is connected to the two LED panels 1 of the same LED module through connectors 9.
• Figs. 5a and 5b illustrate how two of the LED panels 1 are provided with connectors 10 for connection to power supply units units 5 (not shown) of neighbouring LED modules 6 (not shown) and how the two printed circuit boards of the power supply units 5a, 5b are physically integrated into one single printed circuit board.
• FIG. 6 shows a perspective view of an example of a front cover 8 of such a light and colour therapy panel 7 according to an embodiment of the invention.
• the main purposes of the front cover 8, which may, for instance, comprise silicone, vacuum-formed plastic materials or a combination thereof, are to obtain a certain blurred effect of the light emitted by the modular LED display system 11 behind the front cover 8 and to obtain an aesthetically pleasant appearance of the light and colour therapy panel 7 both when it is in use and when it is not.
• the front cover 8 may be detachable and replaceable with other front covers 8 in other colours and with other patterns, etc.
• the light and colour therapy panel 7 it is an audio visual object, which may be suspended on a wall and is arranged to be able to emit light and sound for a variety of therapeutic and relaxational purposes.
• the modular light and colour display panel 7 is combined with a sound system for emitting a plurality of different sound patterns and soundscapes.
• the light and colour therapy panel may be wirelessly controlled, for instance by a dedicated remote control or by a control system, which is implemented as an application in a smart phone or a tablet computer.
• some embodiments of the light and colour therapy panel 7 may be used as an extra light source in the room, in which it is installed, and/or as a hi-fi sound system for playing music, etc.

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• Engineering & Computer Science (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)
• Physics & Mathematics (AREA)
• Computer Hardware Design (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Illuminated Signs And Luminous Advertising (AREA)
• Led Device Packages (AREA)
• Control Of Indicators Other Than Cathode Ray Tubes (AREA)

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Publications (1)

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• 2013
  • 2013-07-08 WO PCT/DK2013/050231 patent/WO2014005600A2/en active Application Filing
  • 2013-07-08 EP EP20130745337 patent/EP2870600A2/de not_active Withdrawn

Non-Patent Citations (1)

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