Questions and Answers

 

Who is Etulipa?

Etulipa is a small company, situated in the heart of one of Europe’s foremost R&D regions, the High Tech Campus in Eindhoven. Etulipa invented the 2nd generation Electro Wetting Display (EWD) technology. Etulipa’s products can be used in a wide range of outdoor applications with almost no light pollution and extremely low energy consumption, Etulipa’s reflective displays do not interfere with the quality of life.

 

Is Etulipa a display manufacturer?

Etulipa designs, develops, produces, and sells displays based on its innovative EWD technology and brings its new reflective display to various markets.

 

Electro Wetting Display (EWD) technology

What is so special about a display based on Etulipa EWD technology?

A display based on Etulipa EWD-technology is a reflective display, like ePaper. Like all ePaper technologies, the Etulipa full color Electro Wetting (EW) display causes almost no light pollution and it is extremely energy efficient.

The ultimate difference with other ePaper technologies, is the fact that the Etulipa EWD-technology by its nature, is suitable for full color, video and outdoor use.

The technology is called Electro Wetting Display (EWD) technology and is patented by Etulipa. The essence oil droplets switching from small to large diameter.

The Etulipa full color display is able to run forever on solar panels and a battery.

A display based on the EWD-technology has all the advantages of paper and none of the disadvantages.

 

Etulipa’s first Full color application

What is the size of an Etulipa full color EW-display?

An Etulipa full color EWD has a modular construction.

It has 2 rows, and each row contains 4 EWD- panels, each panel contains 6 tiles.

Total size of a EW-display is 1.84m W x 1.0m H. (frame included).

 

What is the size of an Etulipa full color EW-panel?

Each panel can be used separately. This allows a screen to be built modularly.

An Etulipa full color EW-panel is 45cm W x 43,5cm H (edge included)

Resulution: 44 W x 42 H pixels

 

Can an Etulipa full color EWD-panel or display show video?

EWD has video capability. In current display only animation is implemented.

 

Where can I buy an Etulipa full color EWD?

Contact Etulipa.

 

What is the delivery time?

Approximately half a year after receiving the order. Initially, the production rate will be limited.

 

What is its selling price?

On request.

 

What is the warranty period?

The usual warranty periods. The exact conditions are determined by the supplier.

 

What is the pixel size of Etulipa’s full color EWD?

10mm

 

Will a smaller pixel size be available in the future?

Yes, displays with a pixel size of 2,5 mm are under development

 

What is the weight of an Etulipa full color EWD-panel

The weight of an Etulipa Full color EW-panel with 6 tiles is 6,5 kg.

 

ePaper

Is a display based on Etulipa EWD technology similar to ePaper?The Electro Wetting Display (EWD) technology from Etulipa, is a type of ePaper technology. Electrophoretic technology is another ePaper technology. They are both reflective but the product characteristics are not the same.

Electrophoretic pixel. Black and white pigment particles with opposite charges migrate inside capsules, depending on the applied voltage.

 

 

 

Electro wetting pixel. The pixels are made up of cells containing colored or black oil and a transparent electrolyte. EWD technology relies on the surface tension of the liquids and uses a low, applied voltage to cause the oil to spread or contract. When the oil is contracted, light is reflected from the white reflector behind the cells.

 

Why should I choose a display based on Etulipa EWD technology out of all the other ePaper possibilities?

the Etulipa EWD technology is by its nature suitable for full color, video and outdoor use. That makes the colors brighter. The EWD-displays are all weather-proof with very wide operating temperature range of -30C to +65C.

 

Color

Etulipa uses CMY colors instead of RGB colors. Why?

In a reflective display, the RGB color filters can pass maximally 1/3 of the light, which yields very dull colors. In CMY the color is created by three stacked layers of oil with respectively Cyan, Magenta and Yellow. Each layer can be switched off and on. The entire surface area reflects the appropriate component of the light resulting in highly saturated colors with great contrast.

 

What colors are possible with the Etulipa EWD-panels?

The EWD colors are similar to those seen on printed media. Commercial printing presses print with cyan, magenta and yellow ink, called process printing, instead of RGB, and therefore produces a slightly different range of color.

 

Video and images

 Can I show videos on an Etulipa EWD based display?

EWD has video capability. In current display only animation is implemented.

 

What is the frame rate of Etulipa EWD panels?

25 frames per second.

 

Readability

Is a reflective display based on EWD-technology viewable in bright sunshine?

Yes, it has excellent viewability in the sun. Because of the reflective characteristics, the display does not have to fight against the sun, it uses the sun. The display is perfectly readable in bright sunlight without additional energy consumption.

 

Is a reflective display based on EWD technology viewable in the evening?

It works just like paper. Because of its high contrast, the display is viewable if there is some ambient light. In darkness, the backlight can be turned on. Power consumption of the backlight is very low.

 

Power consumption

How high is the energy consumption of an Etulipa full color EW-display?

The display itself uses approximately 5 Watts per square meter. There is some extra energy needed for the backlight in the evening. Typical nighttime power consumption with backlight will be somewhere near 9 watts per square meter. Tens of times  less than a square meter LED screen. Solar panels combined with a battery provide the power.

 

Does a display based on Etulipa EWD-technology use extra energy in bright sunlight?

No, because of the reflective characteristics the screen does not need to fight against the sun. Even in bright sunlight, the display is perfectly readable without extra energy consumption.

 

Does an Etulipa full color EW-Display only work on solar power?

An Etulipa full color EW-Display can also be connected to the regular power grid.

 

Does a display based on Etulipa EWD-technology use extra energy in the evening?                  

Not as long as there is some ambient light. During darkness a backlight, using less 5 Watts per sqm, is sufficient.

 

Light pollution

Does an Etulipa EWD-display cause any light pollution?

The natural environmental lighting makes the characters visible and readable. Just like paper. There is no artificial lighting needed during the day and therefore no light pollution

 

What about light pollution in the evening?

During darkness, some external lighting is needed to make the characters readable. Comparable to the situation of reading a newspaper when it is dark. A backlight can be turned on.

 

Reliability

What is the operating temperature range?

Operation in an environment temperature range between -30C to +65>C.

 

What is the operating lifetime?

The market standard is > 100.000 hours.

 

Are the colors solar resistant?

UV filters are used to prevent color fading. The panels comply with the requirements in the solar resistance test program MIL-STD-810G.

 

Technical details

How does the Electro Wetting Display technology work?

The tiles are made up of cells containing colored oil and a transparent electrolyte. Etulipa EWD-technology relies on the surface tension of the liquids and uses a low, applied voltage to cause the oil to spread or contract. When the oil is contracted, light is reflected from the white reflector behind the cells. The small electrical currents needed make these displays highly energy efficient.

 

Can the pixel size be changed?

Yes, displays with a pixel size of 2,5 mm are under development.

 

What is the maximum luminance of the screen?

15,000 nits in full sunlight.

 

Does a screen based on Etulipa EWD-technology produce any noise?

No.

 

What is the viewing angle?

The viewing angle is > 120 degrees horizontal and vertical.

 

Miscellaneous

Can the seams be made invisible in the future?

Today, seems are approximately half a pixel wide. Smaller seams are under development.

 

Where can I see the Etulipa full color EW-Display?

A full color display can be viewed at the High Tech Campus in Eindhoven. Or watch this video.

 

How much heat produces a screen based on Etulipa EWD technology?

The heat production is negligible as expected as a result of the very low power consumption.

 

Where can I find more information about the Electro Wetting Display technology?

On our website or download the whitepaper ‘Electro wetting displays Allow billboards anywhere!’ If you want to kept updated you, can ask for our newsletter.

 

Etulipa. Standing out naturally.

June 2022