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Unveiling the secrets of Electroluminescent Light Technology.

Nejilock has over 20 years of experience in Electroluminescent (EL) Light Technology. We have assisted many companies in setting up their own EL Factory. Your search ends here for expert guidance in crafting your Electroluminescent Light Panels!

Our comprehensive content will guide you through diverse techniques for producing EL Light Panels, detailing the necessary machinery and equipment, essential design principles, and intricate production procedures.

Discover the secrets behind Silkscreen Printed EL, Spray Painted EL, and Roll-to-Roll Slot-die-coated EL methods. Learn to design ink layers effectively and explore the machinery, inks, substrates, and inverters essential for creating stunning EL Lights.

What is electroluminescent (EL) light panel?

Electroluminescent Light Technology is a non-thermal generation of light resulting from the application of an electric field to a substance.

The EL Light Panel is created by the following steps:

Printing Phosphor Ink over an Indium Tin Oxide (ITO) Substrate.
Next, print the Dielectric Ink over the Phosphor layer.
Finally, print Silver Conductive Ink to complete the structure.
Complete the device by lamination.

There are a few ways to make Electroluminescent Light Panels. We will explain them one by one, continue reading, or contact us for more information.

Characteristics of an EL light Panel.

Flexible, made of Plastic.
Can be twisted, bent & cut into any shapes & sizes.
UV & Water Resistant.
Main Power or Battery Operated.
Low power consumption.
High visibility.
Light weight.
Non glaring.
Portable and easy to install.

SILKSCREEN Printed Electroluminescent Light Panel

Introduction

In Electroluminescent Light Technology, the Screen Printing is the most commonly used method of making the EL Light Panels. The reasons must be the availability of skilled workers, machinery, and supporting industries.

The process is similar to printing posters or textiles, except EL requires understanding the function of different ink layers and handling printing inks with bigger particle sizes.

You start by designing the printing layer for the inks to create the positive films. There is a layer each for the Phosphor, Dielectric, and Silver Inks. The designs will then be cast into Positive Films in-house or by a contractor.

Next is to get ready the screens. I recommend you do the screens in-house to control quality and cost. Due to the particle size and viscosity of the EL Inks, the mesh size and tension strength are different from normal printing inks. We recommend 100T-40 (250 mesh/inch) for all three inks and >20N/cm tensile strength for the screens.

Indium Tin Oxide Coated PET (ITO) is the most common substrate for screen printing EL. Cut the ITO to size according to the design.

The Phosphor Ink has to be put on a roller a few hours before printing, this is to ensure the Phosphor particles and the binder are homogeneous.

Now, you are ready to print.

Machines used in Screen Printed Electroluminescent

This is the most common method used in making an Electroluminescent Light Panel. As the name suggested, you will need a Screen Printing set-up. For those without, you will need the following:

Screen Stretcher – for stretching the screen mesh.
Exposure Machine – for casting the image from positive films to screen mesh.
Screen Printer – for printing the various electroluminescent inks.
Box Oven – for curing the electroluminescent inks, it takes a longer time to cure than a conveyor oven.
Conveyor Oven – curing the Inks takes a shorter time to cure than a box oven.

These are the machines needed for your electroluminescent factory. Depending on your budget, they can be manual or semi-automatic machines. The make of the machines also determines the cost of investment.

We have successfully set up a few Electroluminescent factories, and if you are interested in learning more, please click here to continue reading.

Exposure Machine

Box Oven

Electroluminescent Printing Setup

Screen Washing

Large Format Printing Setup

Large Format Conveyor Oven

Screen Dryer

UV Curing Machine

Large Format Screen Printer

Screen Stretcher

Regular Size Screen Printer

Read Our Blog Posts

EL Light Panel Factory in Kuwait

For nearly four years, Mr. Mohammad Pirayesh and I were in discussions before he decided to engage me in establishing an EL light factory in Kuwait. This extended period of planning and communication laid a solid foundation for what was to come. By this point, I had accumulated extensive experience printing EL Light Panels, particularly large-format Electroluminescent Panels.

Cutting-Edge Electroluminescent Factory in Brisbane

Alex’s electroluminescent factory in Brisbane, Australia, stands out as the most advanced facility I have ever had the pleasure of working in. This cutting-edge factory features an impressive array of state-of-the-art equipment, including a Kippax Exposure System, Zund Cutter, Graphic Master Laminator, Gas Fired Conveyor Oven, and a Thieme 3000S screen-printer.

Electroluminescent Contract Manufacturing

Contracting Dotia as our Electroluminescent contract Manufacturer was bold, given their distinct production system compared to Batam. In Batam, we operate in an air-conditioned room to eliminate dust and maintain the optimal temperature for Electroluminescent Inks. Conversely, in Dotia, the printing room lacks air conditioning, and they experience very distinct four seasons. I acquired invaluable experience in handling functional inks by managing these diverse printing environments.

Electroluminescent Factory

Over the past years, we have been actively involved in establishing numerous Electroluminescent factories across diverse regions, including Australia, Indonesia, China, India, Dubai, and Kuwait. Each factory was unique in its budgetary considerations, which influenced the selection of brands and models of machinery employed. Our extensive experience and expertise in setting up these facilities ensure that we cater to each location's specific needs and conditions, ensuring optimal performance and efficiency. You can explore all the details and specifics of our projects here.

More Electroluminescent Light Technology updates coming

Our team diligently updates content related to electroluminescent light technology to better serve you. However, please contact us with urgent questions before the updates are completed. We are always ready to assist you.

Electroluminescent Light Technology References:

Science Direct – Electroluminescence Light Technology is luminescence occurring on electron flow in a solid-state device or electrochemical cell.