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The demand for electric vehicle chargers is increasing and more and more companies are entering the EVC market to fill consumers’ needs. Many factors go into the design and functionality of these chargers, but aside from the charging function itself, the display is just as important. This is the feature that the user will be interacting with the most and what will leave the biggest user experience impression. The right display can make or break an electric vehicle charging company. Here are 7 things to consider when choosing the perfect display!

Why Bigger is Better When Choosing a Display

The demand for consumer displays to be larger is increasing. The latest smartphones are distinguished by their size. Tablets are becoming handheld computers. Consumers search high and low to find the largest television to watch the big game. Traditional print billboards are turning electronic to expand their information delivery capabilities. Consumers demand larger displays for various reasons including viewability, function expansion, and aesthetics. On the commercial side, businesses are able to visually capture a larger audience and display more information. So, how does this translate to electric vehicle charging stations? 

Typically, EV charging station displays range from 7” to 32”. It’s important to keep in mind who will be utilizing the display. Different ages and technological experience levels combined with various environmental conditions all play a part in how successfully your display will perform. If your display is on the lower half of the size range, it can make utilization more difficult for some users.

It’s also important to keep the interactive aspect of your display simple. The more modern and technologically advanced a system looks, the more intimidating it can be and can actually deter customers from utilizing your station as a whole. 

Don’t Choose All Bright, All the Time

No matter the size of your display, it’s important to also have a high brightness display. The brighter the display, the easier it is to view in sunlight. The location of your EVS also plays a factor. Parking structure systems don’t require as high of brightness as outdoor parking lots. With direct sunlight EVS systems, a brightness between 500-1,000 Nits is suggested whereas a system in indirect sunlight or shade, is okay to go below 500 Nits. 

It’s also important to install automated brightness control within your system. This allows the display to automatically dim as the sun sets and rises or environmental conditions change. Automatic dimming improves overall display readability, conserves power, and lengthens display lifetime. Having an all bright, all the time display can also cause your display to overheat. A way to combat this is having an optically bonded display where the heat curated by the display is dispersed through optical material rather than being trapped.

Angles are Everything

Not every customer is going to view your display from a perfect dead-on angle. There are two different LCD types that you need to know about in order to properly address this problem, TN and IPS. Traditional twisted nematic (TN) LCDs where the liquid crystals stand up as a voltage is applied to them. When liquid crystals are in the upright position, their visual characteristics vary significantly depending on the viewing angle. TN displays create a variation in color and brightness from different viewing angles.

The next display type is an in-plane switching (IPS) LCD where the liquid crystal molecules rotate in parallel with the panel. This means that the variation depending on the viewing angle is limited to showing any changes in visuals. Therefore, IPS LCD provides limited changes in brightness and color irrespective of the viewing angle to produce high image quality. 

e3 lcd optical bonding displayse3 lcd optical bonding displays

Get Rid of the Buttons and Nobs 

 Touchscreens can simplify user experiences and make them more efficient. Consumers have become accustomed to smart devices with expansive touch screens, which is why when you are considering a display for your EVC, we recommend considering the touch display route. 

It’s also important to consider the type of touch display technology you are using. There are two main display types: resistive and projected capacitive touch. Resistive touch screens have two transparent layers separated by a thin gap with spacers. When you tap the surface of a resistive touchscreen, the two layers press each other which triggers a voltage to pass through and identify exactly where you touched. Although this technology is cost-effective, there are disadvantages such as not supporting multi-touch, lack of sensitivity and clarity, as well as size limitations.

Projective capacitive touch screens are constructed in a way that allows for operation without direct contact to the touch sensor. This enables the screen to be utilized under screen protectors, in various weather conditions, with vandal-proof glass, gloves, and potentially even in the presence of water droplets. By outfitting your electric vehicle charging station with a projective capacitive touchscreen you are increasing user satisfaction in almost every environment. 

Glass that Protects 

 Electric vehicle chargers are exposed to the elements and vulnerable to damage. Glass is fragile but that doesn’t mean it’s something you should shy away from when designing your system. In fact, by simply installing a thicker display glass you can prevent a lot of headaches for your service team down the line. 

You want your display glass to be at least 6-7mm thick and thermally or chemically strengthened. You can also get your displays enhanced through film lamination. Film laminations can not only make your display scratch-resistant, but anti-glare, anti-reflective, and anti-smudge. 

When considering glass thickness, some are worried about ending up with a bulky display module. Traditional display companies have to install heaters and fans which contributes to overall module thickness.  At E3 Displays your display can be optically bonded which disperses heat in the summertime and transparent heater films that maintain display temperature in the winter. This allows you to select the best glass thickness for your needs that will protect your display. 

Why Optical Bonding?

You might be wondering, what is optical bonding and why is it so important? Optical bonding is a type of integration service that is used to laminate a touch screen or other rigid material to the top surface of an LCD. The bond is created by dispensing and then curing a form of optically clear adhesive between the touch screen and display creating a permanent bond with no air gap between the two components. 

The advantages of liquid optical bonding over air bonding are increased clarity and viewability, maximum protection, dust and moisture prevention, accurate touch experience, and improved heat dissipation. By getting your EVC touch display optically bonded you can rest assured that it will perform in the toughest environments. 

Expand your Revenue through Advertising Capabilities  

Lastly, your electric vehicle charging station can be doubled as a marketing or directory platform. You can sell ad placements and when your charger is not in use, it is still providing value to you and pedestrians. EV chargers are often located in high traffic areas such as malls, university campuses, offices, shopping centers, and more! Every time an electric vehicle owner charges their car, it is a perfect opportunity to reach a high value demographic. 

According to Opconnect, an electric vehicle advertising company, the average income of an electric vehicle owner is $110k and 43% of electric vehicle drivers are likely to return weekly to a retail location with an EV charger. When selecting a display for your EVC, it’s important to consider whether you would also like to utilize it for advertising. 


In conclusion, size, brightness, angles, touch, glass thickness, optical bonding, and advertising capabilities are all important factors to consider when choosing a display for your electric vehicle charger. The size will allow you to be seen by a larger audience. Brightness will optimize your display viewability at various times of the day. Wide viewing cones minimize the limits on who sees on-screen content. Touchscreens can increase your system functions. Glass thickness combined with optical bonding will protect your charger and advertising capabilities can increase your revenue and value. 

With so many factors considered, it can seem daunting to select the right display based on your goals and needs. E3 Displays can assist you in every phase of the design and manufacturing process. We can also build a display into a completely new design concept or add it to your existing systems. 

About E3 Displays: 

We’re a global design and manufacturing company that helps the world’s most innovative companies define the future of their business display needs. With over 20 years of combined experience in display technology, E3 Displays has everything you need to develop and manufacture your custom touch display all in one place. With customer-centric solutions featuring strategic planning, competitive pricing, longevity, and support, we ensure the best products on the market to help you scale. In the end, displays are a centerpiece in any hardware that provides a very important visual message in your product. We want to ensure that the visual entity exceeds your optical and performance requirements.


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