SolCIS
Innovative Solutions for CIS- and Thin Film based Solar Technology and Applications
©Media Energy Display - a USP!
The basic element of a Media Energy Display is a slightly modified standard thin film solar module with an integrated display function.
Switched off
RGB-LED's on
Illustration: at-ac.de
An assembly of numerous of those basic elements yields a large area high resolution display in combination with the generation of solar electricity. This is the Media Energy Display, a very attractive application for Building Integrated Photovoltaics (BIPV) with superior added value - the Art of Solar
Solar Photo: Reinhard Pankrath
Building Integrated Media Energy Displays illustrating the effect of LED-display arrays switched on/off. The display technique is integrated into the the solar modules but hidden behind its glass surface and therefore invisible in any mode.
Solar Park with integrated Media Energy Display: another application could be on solar parks, where a small area e.g. 50m x100m in size would be provided by media energy displays in order to present the company logo of the manufacturer or operator into the sky or to expose any other advertising messages . This would for example be attractive on solar park sites close to main airway routes or airports.
The modification of the standard thin film solar module is the manufacturing of apertures providing the light emission of the LED array throughout the solar module. Those apertures will be processed independent on the patterning lines of the integrated series connection. A grid of square or circular dots of e.g. 2mm to a maximum of 5mm in diameter will be processed.
The layout of the LED array will ensure a proper adjustment of each LED aperture towards the aperture grid on the thin film module. In this way the LEDs emit the light most efficiently towards the viewer.
For large area BIPV applications integrating the Media Energy Display the necessary grid spacing for a targeted HD resolution of the display function reduces the active module area for solar electricity generation only by 2% to 5%, depending on the desired area size, layout and viewing distance.
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This application is not limited to CIGS modules only. It can be combined with nearly all photovoltaic thin film technologies.
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The resulting display function in active mode will be quite similar to a large area LED-display, however its appearance will be very precious in glossy or mat finish.
When the display function is turned off, the appearance of the Media Energy Display is a high quality - e.g. glossy black - or optional mat- glass facade.
The LED-display behind is invisible for the viewer.
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Media Energy Display and Color Module can be combined yielding facade designs in brilliant colors with integrated solar electricity generation and display function.
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Compared to 'conventional' BIPV the offered product shows its high added value for the final customer in all different media applications on large facades for representation- advertising- and information purposes as well as for static or changeable building design.
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The undesired technical appearance seen on common LED displays is hidden behind the module glass-glass laminate.
This makes the Media Energy Display very appealing for manifold creative solutions in architectural design.
Self-contained Media-Energy-Display
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This product will include batteries for storage of the photovoltaic energy. The paramount benefit is a self contained display even at nighttime.
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For a continuous 24/7 self contained display operation a beneficial ratio of active photovoltaic area vs. LED area has to be provided. Then no power supply is necessary any more, which makes this product very attractive for applications where stand alone solutions are mandatory or of significant advantage e.g. with respect to installation cost and time.
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Beside BIPV beneficial applications for such self-contained displays are e.g. traffic signs for automotive- and shipping traffic control , where the active area and energy consumption for the display function will be small compared to the active photovoltaic area and power generation.
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In this case remote control of the traffic signs, monitoring cameras and additional sensors, e.g. for temperature and humidity measurement will be integrated.
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The on-site installation of this kind of self contained display is a mechanical mounting only. No cabling nor any other installation is necessary any more.
The huge benefit is a significant reduction in costs and installation time as well as a much higher flexibility in comparison to conventional products for this application.
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