Light stripe printing | Electroluminescent store (EN)
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Light stripe printing

About This Project

Contents

  1. Introduction
  2. Description of Compliance
  3. Benchmarking, Problem raised by the method and Solution found
  4. References.

 
I. Introduction

For the development of electroluminescent stripe, it is necessary to be provided with the following equipment;

  • 1 Luminophore coat,
  • 1 Dielectric coat,
  • 2 Conductives coat,
  • 1 Power boxe,
  • 1 Colored vinyl film,
  • 1 Double adhesive film,
  • 1 Lamination film,
  • Plug.

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It is also possible to use the reflector film.( Blue, Red, Orange, White...)
 
 II. Description detailed

The finished product is in the form of a lighted scotch; the user removes the liner and stick the tape in a second. It is mainly formed by electroluminescent panel. A colored vinyl transparent film is add to reach any visible light spectra
By default, scotch is featured by a 3M adhesive scotch, hot lamination, no busbar and a plug.
 
Native colors of luminophore is white Off, Blue On - Peach Off, White On - White Off, White On. Browse Elisa colors chart.
 
These EL tape are flexible and generally include a transparent front electrode layer, a phosphor layer, a dielectric layer and a rear electrode.
 
In one embodiment of an tape that is shown in FIG. 1, the lamp may be in the form of a flexible panel 10 which may comprise a multilayer inner cell sealed within an outer moisture resistant envelope 12.
 
Within the active cell are shown four layers, i.e., a front electrode layer 14, a phosphor layer 16, a dielectric layer 18 and a rear electrode layer 20. The electrodes 14 and 20 may be provided with external silver or other leads 22 and 24 respectively during the manufacturing process, or alternatively with ribbon connectors each being adapted for connection to a suitable source of power. As is known in the art, the application of an electrical potential across the two electrode layers 14 and 20 results in the excitation of the phosphor layer 16.
 
The phosphor layer 16 is immediately contiguous to the front electrode layer 14 but spaced from and electrically isolated from the rear electrode layer 20 by a dielectric layer 18. This phosphor sandwich is protected from the rear by an overcoat.
 
Additional exterior layers or interior layers may also be employed in the invention. Preferably, the various layers are formed by extrusion through a slot die, or they may alternatively be formed by a screen printing manufacturing process. Front conductor layer 14 may be formed on any suitable material, such as a polyester layer 28. The polyester layer may be heat stabilized. The front conductor layer comprises conventional indium tin oxide (ITO) compounds in a binder. Preferably, the binder is a fluoropolymer, such as polyvinylidene fluoride. A typical composition from which the front conductor layer 14 is formed comprises, in weight percents based on the total weight of the composition, of from about 50 to about 85 percent indium tin oxide compounds, from about 5 to about 25 percent of 2-(2-ethoxyethoxy)-ethyl acetate, from about 5 to about 25 percent of 2-butoxyethyl acetate, and from about 2 to about 30 percent of polyvinylidene fluoride. Typical thicknesses of the front electrode layer 14 range from about 15 to about 40 microns, more preferably from about 20 to about 25 microns. (100 Ohms)
 
The phosphor layer 16 may include any suitable conventional phosphor such as copper activated zinc sulfide in a suitable binder, preferably a fluoropolymer binder such as polyvinylidene fluoride. In one preferred embodiment, the binder is substantially the same as employed for the front electrode layer 14. For example, the phosphor layer 16 may comprise, in weight percents based on the total weight of the composition, from about 50 to about 60 percent of copper activated zinc sulfide, about 5 to about 25 percent of 2-(2-ethoxyethoxy)-ethyl acetate, about 5 to about 25 percent of 2-butoxyethyl acetate, and about 2 to about 30 percent of polyvinylidene fluoride. Typically, the thickness of the phosphor layer 16 ranges from about 30 to about 60 microns, more preferably from 45 to about 50 microns.
 
The dielectric layer 18 may include any suitable conventional dielectric powder, such as white dielectric powder, in a suitable binder. Preferably, the binder comprises a fluoropolymer binder such as polyvinylidene fluoride. More preferably, the binder is substantially the same as employed in the front electrode layer 14 and the dielectric layer 16. In one embodiment, the white dielectric powder may be an admixture of titanium dioxide (20-60 wt. %), silicon dioxide (3-10 wt. %), and aluminum silicate (3-10 wt. %). The dielectric layer is preferably formed from a composition which comprises, in weight percents based on the total weight of the composition, from about 50 to about 60 percent of the dielectric powder, about 5 to about 25 percent of 2-(2-ethoxyethoxy)-ethyl acetate, about 5 to about 25 percent of 2-butoxyethyl acetate, and about 2 to about 30 percent of polyvinylidene fluoride. Typically, the thickness of the phosphor layer 16 ranges from about 5 to about 20 microns, more preferably from about 10 to about 15 microns.
 
The rear electrode layer 20 may include suitable conventional conductive ink or silver, carbon, or ceramic, or blends of carbon silver or nickel silver, in a suitable binder. Again, preferably the binder is a fluoropolymer binder, such as polyvinylidene fluoride. Also, the binder may be substantially the same binder as employed in the other layers mentioned above. Preferably, the rear electrode is formed from a composition which comprises, in weight percents based on the total weight of the composition, from about 50 to 85 percent metallic silver, from about 5 to about 25 percent of 2-(2-ethoxyethoxy)-ethyl acetate, from about 5 to about 25 percent 2-butoxyethyl acetate and from about 2 to about 30 percent of polyvinylidene fluoride.
 
The protective overcoat 26 may comprise any suitable conventional material such as a fluoropolymer powder (e.g., Teflon.RTM. PFA powder). The overcoat composition preferably includes a fluoropolymer binder, such as polyvinylidene fluoride, and may be substantially the same as the binders of the other layers. In a preferred embodiment, the protective overcoat 26 is formed from a composition comprising, with about 5 to about 25 percent fluoropolymer powder (e.g., Teflon.RTM. #532-5011), and a binder comprising in weight percent of the binder, from about 15 to about 45 percent of 2-(2-ethoxyethoxy)-ethyl acetate, from about 10 to about 45 percent 2-butoxyethyl acetate, and from about 20 to about 80 percent polyvinylidene fluoride. Typically, the thickness of the overcoat layer is from about 5 to about 30 microns, more preferably from about 15 to about 20 microns.
 
In each of the aforesaid layers, conventional additives may be added in conventional amounts, such as, for example, 2 to 10 weight percent based on the total weight of the respective composition.
 
By use of a fluoropolymer binder such as polyvinylidene fluoride for all of the layers of the lamp, a thick film lamp may be produced which has high resistance to many chemical solvents, to ultraviolet and nuclear radiation, weathering, fungi and a low water transmission rate
 
The use of a common binder results in a lamp in which the various layers have a similar coefficient of temperature expansion, thus significantly reducing failures from exposure to elevated temperatures, and the inclusion of an ultraviolet absorbing component in the binder for at least the phosphor, and preferably all layers, obviates the need for and expense of an additional UV resistant coating.
 
The use of a common binder for both phosphor and adjacent dielectric layers also reduces lamp failure due to localized heating, thus increasing light output for a given voltage and excitation frequency, and increasing the ability of the lamp to withstand overvoltage conditions without failure.
 
EL lamps of the above structure are available from Electro-LuminiX of the USA under the trademark Light Tape.
 
2.3. Package
Add copy inside the package and the second sticker on the largest side of package to allow the team to immediately identify the contents of package.
Delivery by tracked parcel.
 
2.4. Lead Time
Shipping within 72 hours or order will be transfer to an another retail store
 
2.5. Payment
Instantly through PayPal or internal transfer.
Requirement: Simply send us back by email a picture of device in fonction and tracking number.
 
3. Benchmarking, Problem raised by the method and Solution found.

3.1. Comparative analysis

Tape do not allow to print sections. It is therefore necessary to have several taps to achieve a dynamic image. The number of necessary inverter is increased in this case.
 
3.2. Problem raised by the method

The method requires a separation of the rear electrodes that let appear a non-lighted middle zone. Moreover, the necessary production machines for printing on a long length and the one used for dynamic logo impressions are different.
 
3.3. Solutions found by Electroluminescent store

We produce for the first time ever a light stripe with a total luminous surface, without separation. Thanks to technical printing with micro busbar lopsided on the below.
 
4. References

This manual is by no means a complete and detailed description of the production, but part of the process, and many details have been left out in order to facilitate understanding.
The material was compiled from public resources, as well as internal documents of Electroluminescent store.
Unless otherwise indicated, all manuals, including but not limited to, design, text, graphics and other files are the property of their authors or Electroluminescent store Richmond. You may electronically copy and print on paper for non-commercial and personal purposes, within the strict framework of the unit that employs you, provided that the analysis is not changed and the display dots rights of author or property is retained. The use of photographs, graphics and references from other sources is not a promotion or endorsement of products and services and it is only used for illustration.
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