WO2014005600A2

WO2014005600A2 - A modular led display system, a module therefore and an application thereof

Info

Publication number: WO2014005600A2
Application number: PCT/DK2013/050231
Authority: WO
Inventors: Jens Bernstorff SCHRØDER
Original assignee: Hepion Aps
Priority date: 2012-07-06
Filing date: 2013-07-08
Publication date: 2014-01-09
Also published as: WO2014005600A3; EP2870600A2

Abstract

An LED module(6)is disclosed being configured for being combined with one or more similar LED modules to form at least part of an LED display system(11), said LED module comprising an LED panel (1) comprising a first printed circuit board (2) with a plurality of LEDs(3)placed on a front side thereof and a power supply unit (5) comprising a second printed circuit board configured for being physically connected to a back side of the LED panel. Furthermore, a modular LED display system (11) comprising one or more such LED modules and a computer controllable light and colour therapy panel (7) comprising such a modular LED display system and 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 are disclosed.

Description

A MODULAR LED DISPLAY SYSTEM, A MODULE THEREFORE

AND AN APPLICATION THEREOF

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

Throughout the medical history, there has been an urge to evolve treatment for human kind. In modern society, the focus has shifted from basically only studying the medical angle towards a more holistic view on the person in need of treatment. The approach to human health has changed over the years from focusing on precise body parts or illnesses to a more "all included" state of mind, which has given focus to the notion of wellbeing.

Different attempts to construct an instrument that could remedy depressions or other low energy states of the mind have adopted the old idea that treatment should be restrained to areas within a hospital. This approach has resulted in different creations, among which are, for instance, boxes or rooms that must be entered by the patient in order for him or her to receive treatment. Typically, such treatments consist in exposing the user to a combination of different stimulations, such as light, sounds, wind and other forms of sensory stimulations.

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. Thus, 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. Furthermore, time must be planned ahead and spent for going to the place of treatment.

Brief description of the invention

It is an object of the present invention to provide a system which, among other purposes, may be used for treating such low energy states of mind or simply for giving an energy boost of light and sound in the home and the everyday life of the user.

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. In some embodiments of the invention, mono-colour LEDs may be used. In preferred embodiments, however, 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. In some embodiments of the invention, 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.

In an embodiment of the invention, the LED module comprises more than one LED panel.

For production purposes, it can be advantages to split the LED panel of an LED module into more than one physical LED panel. In an embodiment of the invention, 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.

For production purposes, it can be advantages to integrate the power supply units of more than one LED module physically on the same printed circuit board.

In an embodiment of the invention, 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.

In this way, the power supply unit may be used for connecting one LED module with another for transferral of, for instance, signal data.

In an embodiment of the invention, the LED panel is operated at a voltage between 12 V and 48 V, preferably between 24 V and 36 V.

Operating the LED panel at such relative high voltages is advantageous in that it allows for the use of electric connections with smaller dimensions than if lower voltages were used. In an embodiment of the invention, 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.

When the displayed image is stored within the LED module, it significantly reduces the amount of signal data to be transferred to the LED module, as new signal data are only necessary, when the image has to change.

In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

In an embodiment of the invention, 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 set the colour and intensity of the light of the individual LEDs on the LED panel to at least 6 * 2²⁴ different chromaticities with 2¹² different intensity levels, preferable to at least 6 * 2 different chromaticities with 2¹⁶ different intensity levels.

The use of such high resolution of the light intensity and chromaticity is

advantageous, because it ensures a smooth and stepless intensity and chromaticity variation as seen by the human eye. The human eye can easily distinguish between more than the 256 different intensity levels and the likewise relatively few

chromaticity levels typically used in such LED systems, but it cannot distinguish between two neighbouring intensity or chromaticity levels of the very large number of different levels used in the present invention according to this embodiment.

In an aspect of the invention, it relates to a modular LED display system comprising one or more LED modules as described above. In an embodiment of the invention, 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.

In an embodiment of the invention, a plurality or all of the LED panels are mounted on the same common mounting plate.

In this way, the common mounting plate may be used as a structural part of the LED display system. In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

In an aspect of the invention, it relates to 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.

In an embodiment of the invention, 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 use of a panel that can change between artificial daylight and coloured or multicoloured light allows for using the panel not only for daylight treatment or colour treatment but also as a normal artificial light source. In an embodiment of the invention, the computer controllable light and colour therapy panel further comprises an integrated sound system. The term "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.

In an embodiment of the invention, the sound system and the modular LED display system can be operated separately from each other.

The choice of separately operating the sound system and the modular LED display system enables for using only one of the two systems at a time.

In an embodiment of the invention, the sound system and the modular LED display system can be operated in coordination with each other.

The choice of coordinated operation of the sound system and the modular LED display system enables for combined treatment with light and sound.

In an embodiment of the invention, the computer controllable light and colour therapy panel further comprises suspension arrangements for suspending the panel from a ceiling or from a wall.

The possibility for suspending the panel from a ceiling or from a wall allows for fixating and stabilizing the membrane along a wall without taking up any particular space. In an embodiment of the invention, 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.

In an embodiment of the invention, 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 use of specified sequences allows for a customization of the light output from the panel according to desired effects and personal needs. The effect of intensity and chromaticity within the area of artificial daylight is discussed in several reports, dissertations and books, such as "Effects of Light on Humans" by Joseph Brennan, Lighting Journal, Vol. 72, No. 3, June 2007, pp. 29-36 and "Sansernes hospital" written by Lars Heslet, Arkitektens Forlag, 2007.

In an embodiment of the invention, 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 use of specified sequences allows for a customization of the sound output from the panel according to desired effects and personal needs. The effect of sound and music in relation to therapy and medical treatment is discussed in several articles and books, such as "Vores musikalske hjerne" by Lars Heslet published at the Internet (www.musicahumana.dk/documents/00069.pdf) and "Fra det yderste" written by Lars Heslet, Bogvaerket, 2010. In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

This option benefits from the calmness provided by the nature. In an embodiment of the invention, 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.

In an embodiment of the invention, 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.

In an embodiment of the invention, the computer controllable light and colour therapy panel further comprises a front cover made at least partly from a vacuum- formed plastic material.

The use of such materials is advantageous in that they allow for a simple and cost- efficient production of the front cover and provides a certain desired diffusion of the light transmitted through the front cover Figures

In the following, a few exemplary embodiments and aspects of the invention are described and explained in more details with reference to the figures, wherein 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, is a perspective view of a power supply unit of an LED module according to an embodiment of the invention, 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

embodiment of the invention as seen from the back side, 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, and fig. 6 is a perspective view of the front cover of a light and colour therapy panel according to an embodiment of the invention.

Detailed description 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.

In principle, 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.

Thus, there is a relatively simple relation between number of LEDs 3 on the LED panel 1, the dimensions of the LED panel 1 and the pixel size. When two of these properties are given, the third one can easily be calculated. For the sake of flexibility when combining the LED panel 1 with other similar LED panels (not shown), the shape of the printed circuit board 2 is preferably quadratic as illustrated in fig. 1. In principle, however, the LED panel 1 may have any desired shape, such as rectangular, triangular, etc. 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. Figs. 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. In this embodiment, 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). In other embodiments, however, 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. In such embodiments, 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. In such systems, 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. Preferably, 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. For constructional purposes, 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. In this embodiment, 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. Furthermore, 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

embodiment of the invention, comprising two LED modules, marked with the suffices a and b, respectively, on the reference numbers in these two figures. In this embodiment, 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.

Furthermore, 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.

One application of a modular LED display system 11 as described above is a light and colour therapy panel 7. 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. In a preferred embodiment of 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. In this case, 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.

Correctly configured, 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.

List of reference numbers

1. LED panel

2. Printed circuit board of LED panel

3. LED

4. Connector for interconnection of LED panels

5. Power supply unit

6. LED module

7. Light and colour therapy panel

8. Front cover of light and colour therapy panel

9. Connector for connecting power supply module to LED panel of same module

10. Connector for connecting power supply module to LED panel of neighbouring LED module

11. LED display system

Claims

1. An LED module (6) 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 (1) comprising a first printed circuit board (2) with a plurality of LEDs (3) placed on a front side thereof and a power supply unit (5) comprising a second printed circuit board configured for being physically connected to a back side of the LED panel.

2. An LED module according to claim 1, comprising more than one LED panel.

An LED module according to claim 1 or 2, wherein 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.

An LED module according to any of the preceding claims, wherein 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.

5. An LED module according to any of the preceding claims, wherein the LED panel is operated at a voltage between 12 V and 48 V, preferably between 24 V and 36 V.

6. An LED module according to any of the preceding claims, wherein 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.

An LED module according to any of the preceding claims, wherein 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.

An LED module according to any of the preceding claims, wherein 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 module according to any of the preceding claims, wherein 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 set the colour and intensity of the light of the individual LEDs on the LED panel to at least 6 * 2²⁴ different chromaticities with 2¹² different intensity levels, preferable to at least 6 * 2³² different chromaticities with 2¹⁶ different intensity levels.

A modular LED display system (11) comprising one or more LED modules according to any of claims 1-8.

10. A modular LED display system according to claim 9, wherein 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.

11. A modular LED display system according to claim 10, wherein a plurality or all of the LED panels are mounted on the same common mounting plate.

12. A modular LED display system according to claim 10 or 11, wherein 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.

13. A modular LED display system according to any of claims 9-12, wherein 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.

14. A computer controllable light and colour therapy panel (7) comprising a

modular LED display system according to any of claims 9-13, 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.

15. A computer controllable light and colour therapy panel according to claim 14, wherein 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.

16. A computer controllable light and colour therapy panel according to claim 14 or 15 further comprising an integrated sound system. A computer controllable light and colour therapy panel according to claim 16, wherein the sound system and the modular LED display system can be operated separately from each other.

A computer controllable light and colour therapy panel according to claim 16, wherein the sound system and the modular LED display system can be operated in coordination with each other.

A computer controllable light and colour therapy panel according to any of claims 14-18 further comprising suspension arrangements for suspending the panel from a ceiling or from a wall.

A computer controllable light and colour therapy panel according to claim 19, wherein the suspension arrangements comprise wires for conveying electric power and/or data signals to the panel.

A computer controllable light and colour therapy panel according to any of claims 14-20, which 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.

A computer controllable light and colour therapy panel according to any of claims 14-21, which 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.

23. A computer controllable light and colour therapy panel according to any of claims 14-22, which is arranged so that the light and sound patterns can be individualized by means of a control system having an interface and a database.

A computer controllable light and colour therapy panel according to any of claims 14-23, which is arranged so that the light and sound patterns can be customized and saved on a personal chip.

A computer controllable light and colour therapy panel according to any of claims 14-24, which is arranged so that the light and sound patterns can be customized and saved in a password protected database.

A computer controllable light and colour therapy panel according to any of claims 14-25 further comprising 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.

A computer controllable light and colour therapy panel according to any of claims 14-26 further comprising 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.

28. A computer controllable light and colour therapy panel according to any of claims 14-27 further comprising 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. A computer controllable light and colour therapy panel according to any of claims 14-28 further comprising a front cover (8) made at least partly from a vacuum-formed plastic material.