The display industry has taken a significant technological leap with the release of the EVE4 technology by Bridgetek. Supported by our partners, Melrose Systems now offers a high brightness IPS display line with a BP817Q controller called EVE4.
But what exactly is EVE4? What kind of benefits does it bring to customers? Read this article to explore this brand-new technology and check whether your application could benefit from its unique features.
What is EVE4?
EVE stands for Embedded Video Engine. It’s a smart display controller that works like a sort of software backend. It’s invisible to end-users and responsible for executing a number of specific functions.
EVE4 is the name we have given to the Bridgetek BP817Q controller used on our displays. Together with our partner, we are among the first companies to have ever implemented this new technology on a mass scale into production.
Before introducing EVE4, we used EVE1, EVE2, and EVE3. These technologies still exist and are functional. Melrose Systems is one of the first providers in the market to offers the entire line of IPS displays ranging from 3.5 to 10.1 inches together with the BP817Q controller ready for operation.
What are the benefits of EVE4?
To be able to serve industrial, medical, and even military-grade projects, we put emphasis on keeping the electromagnetic emissions of this display at a very low level. The emissions in question are EMC (electromagnetic compatibility) and low EMI (electromagnetic interferences). The results of research on the emission of the displays might be shared in the future.
Built-in flash memory
This type of permanent memory allows storing pictures, fonts, and videos. It can be programmed into ways:
- From our host on the Bridgetek BP817Q – this means that the images will be uploaded to the memory and can be changed during the operation of the device.
- Alternatively, you can upload them during production using a quick connector.
If you’re ordering a large number of displays (say, 1000) with specific content that needs to be displayed on them, we can load the content for you during the production and remove this task from your busy schedule. There’s no need to prepare code for transferring and verifying the content. Instead, we can prepare the memory content, upload it, verify it, and then deliver it on the display.
This feature is used to generate sounds from the display. Sounds can be sent outside of the host but also received from the host. For example, it’s possible to use Bridgetek’s built-in sounds but also generate some other sounds and send them to the display board easily. Once received, they will be then amplified by the amplifier and played by the speaker that you can attach to the display directly.
Some examples of sounds that can be used in this context are the classic beeping when touched, as well as failure sounds, device operation sounds, and special sound messages. All the PCBs come with a built-in amplifier and speaker connections, so there is always space available for speakers to be attached directly to the display.
SPI and QSPI interference options for the host
Since most modern microcontrollers run on QSPI due to its incredible speed – it’s four times faster than SPI. However, the display runs well on standard SPI as well, giving customers the option to choose the interface depending on speed requirements for loading new content to the display memory.
This 20-pin standard connector allows building one board that can be used on several devices with different display sizes. For example, you can have a coffee machine with a 3.5-inch, 5-inch, or 10-inch display and use the same electronics inside. That’s because the display connector will be identical, and compatibility will be maintained between these different sizes.
Non-square pixel algorithm
Most displays used today come with square pixels. When you want to draw a circle, that circle needs to be round. However, 7-inch displays often have rectangular pixels because of the glass type that is now popular among manufacturers today. The result is that when the customer wants to draw a circle, instead, they get an ellipse. This detail could potentially affect a company’s brand image. EVE4 solved this problem by correcting this immediately. The tool will apply the correction in rectangular displays.
EVE4 is based on the latest line of high brightness IPS displays that included a number of optical advantages in relation to brightness, angles, and colors – all in 1000 candelas. This level of brightness allows the displays to be perfectly readable even in outdoor environments.
Application examples of EVE4
Devices that are used in production halls and factories might require high mechanical resistance in their displays. That’s because these devices might be exposed to factors like moisture, dust, vibration, or bumps. A worker can hit or push it. That’s why the glass covering the display is usually thicker.
Moreover, such environments require working with gloves. Electromagnetic immunity is an essential feature – the machine shouldn’t turn on by itself even if someone is working next to it. These disturbances can be very strong, and the industry controller can easily handle that. This is where EVE4 helps.
From vending machines and parking meters to access gates and ticket machines, external devices are another powerful application of the EVE4 technology. Any place that has a display and an RFID reader where the user puts cars and can see something on the display is a good match for EVE4.
The high resistance to moisture and ability to handle work with medical gloves are two primary benefits EVE4 brings to the medical industry. Good viewing angles that IPS offers are also required since the device should be visible from all sides regardless of where it’s located. Lack of any bad pixels guarantees that not even the smallest detail is missed.
The high EMC plays the most important role for a device to be able to pass military certifications. For example, tactical radio needs to limit the lowest possible electromagnetic interference. High display resolution also comes in handy since it allows content like maps to be zoomed in very closely. The high brightness offers excellent legibility outdoors. Finally, the industrial touch panel allows seamless operation even with military-grade gloves on or in humid environments.
What about the cost of EVE4?
EVE4 offers a plethora of advanced features. It’s an outstanding technology in the market. But is it also cost-effective? It’s definitely not the cheapest available technology but also not the most expensive one. Sometimes it’s worth paying a little extra in order to get a display that meets the quality parameters, especially if you’re looking for a display that needs to work in an application 24/7 like a parking meter.
The greatest advantage of the new EVE4 line is the entire change of the display and the touch panel. This constitutes a massive upgrade.
If you’re interested in testing EVE4, get in touch with us. At Melrose Systems, we deliver high-quality display solutions for a wide range of applications. Our experts have the know-how and skills to provide you with the best advice and help you choose a display solution that matches the unique requirements of your application.