In our previous blog, we talked about the different kinds of resistive touchscreens and how they compare. While resistive screens offer a high level of versatility, another one of the most widely used touchscreen varieties is the projected capacitive touchscreen. Below, we’ll be discussing the key features and advantages that make projected capacitive technology such a popular touchscreen option.
What are projected capacitive (PCAP) touchscreens?
In contrast to resistive touchscreens, projected capacitive touchscreens don’t require any physical pressure to activate. Rather, they rely on projecting a capacitive field through the display. This field is then disrupted by electrical impulses from the human body when the cover glass is touched. PCAP touchscreens have grown immensely in popularity over the last several years and are primarily used in smartphones, monitors, and any other device that requires both durability and precision.
Advantages of projected capacitive (PCAP) touchscreens
Originally thought of as expensive and unreliable, the technology for projected capacitive touchscreens has consistently improved. Over the years, the cost of manufacturing has come down significantly enough to rival that of many resistive options. The specificity to which the input sensitivity can be tuned has also become advanced enough to reject dust, oil, grease, gels, and other agents, while still effectively gauging user input. This makes them ideal for industries where high cleanability and input precision is required.
Since the input is simply a disruption to the capacitive field, PCAP screens allow for multi-touch functionality, such as zooming, rotating, and more. However, due to the reliance on electrical impulses for input, there are limits to what can be used to activate it. The sensitivity can be tuned to register styluses and gloves, but the item used has to be able to successfully disrupt the capacitive field. This may be less ideal than resistive touchscreens for certain applications, where it may be necessary to use other objects to input information.
Due to PCAP touchscreens not relying on separate panels making contact, damage to the cover glass or acrylic generally won’t affect user input, making them durable enough to handle nearly infinite activations. Because of their construction, PCAP touchscreens also display an extremely high-clarity image. Since the layers are bonded together with optically clear adhesive (as opposed to with an air gap between layers as with resistive touchscreens), the displayed image has a high level of light transmission and is very clear. Coupled with rarely losing calibration, they are durable and remain precise throughout their lifespan.
Ultimately, the decision to use either a resistive or projected capacitive touchscreen comes down to the application. Regardless of what type of user interface system you’re looking for, GMN’s experts can help you find the perfect touchscreen for your next product. Find out more about our display integration capabilities or set up a consultation with our experts.
In today’s world, touchscreens are omnipresent and expected by users on almost any interface system. Widely used in a variety of industries, there are many different types of touchscreen constructions available. Once you have decided to use a touchscreen, there are important design considerations to take into account. How should the touchscreen function when interacted with? Does it need to be durable enough for heavy usage and millions of actuations? Should it be incredibly precise and not require any calibration? Whether your biggest concern is cost, durability, or functionality, there are many different options.
The most commonly used touchscreens broadly fall into two categories: resistive and capacitive. In this blog, we will be focusing solely on the different types of resistive screens and their core advantages.
What are resistive touchscreens?
Resistive screens are made up of two conductive and transparent layers: a flexible top panel (typically made out of polyester or PET) and a rigid bottom panel. An adhesive spacer lies between the two layers. When pressure is applied to the top panel, it makes contact with the panel below. This contact interrupts a continuous current flowing between the panels, where a grid of horizontal and vertical lines allows a controller chip to know what was touched and gauge input accordingly. Since the input is calculated through physical pressure causing the two layers to make contact, resistive touchscreens work well for any gloved or stylus usage.
Types of resistive touchscreens
4-wire resistive touchscreen
The least expensive of all of the touchscreen options, 4-wire touchscreens are typically found in games, toys, and other inexpensive touchscreen applications. Since the accuracy is based on the top panel interacting with the bottom panel, any damage to the top panel will cause the accuracy to degrade. This generally makes them less reliable after heavy usage or many actuations. 4-wire touchscreens also have to be calibrated frequently as they get used to ensure that they register the correct input.
8-wire resistive touchscreen
Very similar to 4-wire in durability and usage, the only difference with an 8-wire screen is additional wiring. This additional wiring keeps the screen more precisely calibrated and allows it to auto-calibrate, meaning that it requires less maintenance to maintain accuracy than its 4-wire counterpart.
5-wire resistive touchscreen
Despite the similar name, 5-wire touchscreens are significantly different from the 4-wire and 8-wire variations. 5-wire screens measure input from the bottom panel only, not in tandem with the top panel. This means that regardless of any damage to the top layer, the usage of the touchscreen and accuracy of input won’t degrade. This makes them more durable and they generally last through many more actuations than other resistive options.
Resistive multi-touch screen (RMTS)
Resistive multi-touch screens (RMTS) are the only type of resistive screens that allow for multiple-touch functionality, such as pinching, zooming, or rotating. Similar to 5-wire screens, the bottom layer is the only layer that measures input, meaning that they’re more durable and well-suited for a rugged environment. EMI mesh can also be applied to the front surface, protecting internal components from outside electrical activity. This, in combination with the durability, makes them favorable for military and industrial applications.
Resistive touchscreens are a great option for a wide variety of applications and industries. To learn which touchscreen option is right for your next product, take a look at our front panel integration and bonding capabilities or request a free consultation with our technical experts.
Continuing the annual tradition since 2016, GMN Aerospace has once again donated to the Pacific Northwest Aerospace Alliance (PNAA) scholarship fund. As a custom manufacturer and an experienced aerospace supplier, we understand that strengthening and supporting the future of aerospace right here in the Pacific Northwest is crucial.
Each year, GMN Aerospace’s donation goes towards helping students studying aerospace design, maintenance, and engineering at accredited Pacific Northwest colleges and universities. The scholarship helps these students purchase books, tools, and other necessary supplies for their programs. In 2019, GMN’s donation was awarded in the form of a scholarship to Oleksiy Zagorulko, an aviation maintenance technician (AMT) student finishing up his third quarter of classes at Clover Park Technical College.
“To be honest, this is the first scholarship I have ever received, and I am very excited to use it correctly to impact the community around me and help others in need. This career will affect the world by allowing more and more people to improve their traveling experiences by bringing it to the next level and allowing them to travel safer. Thank you very much for giving me such an amazing opportunity to be awarded a scholarship this is a really big help for me.” writes Oleksiy in his letter to GMN Aerospace. He plans on graduating next summer, and we wish him the best for his future in the aerospace industry.
GMN is proud to support passionate students like Oleksiy Zagorulko as they complete their aerospace education and kickstart their careers in this exciting field.
Are you in need of a highly durable and high-end looking nameplate? Then look no further than Metalphoto®. This incredibly dependable and innovative material is gaining popularity in highly regulated industries such as defense, transportation, industrial and aerospace.
Metalphoto® | Photosensitive anodized aluminum
Metalphoto® is a specific type of anodized aluminum used to make nameplates, labels, control panels, serial plates, placards and asset tags. Originally developed for the US Navy in the 1950's and specified by most major OEMs, it is one of the most durable identification materials available today. Our latest video demonstrates the step-by-step process in which Metalphoto® components are fabricated.
To begin the Metalphoto® process, all that is needed is a digital art file. This art file is transferred via laser onto a pure 1100 alloy aluminum sheet, which can range in thickness between 0.003” to 0.125”. The sheet is then put through a processor that develops the artwork on the photosensitive aluminum. Although Metalphoto® images and text are primarily black, additional colors can be screen-printed at this time.
The graphics are exposed and developed like a photograph inside of the anodized aluminum, which causes it to become a part of the nameplate. This unique production method provides the unparalleled durability that Metalphoto® is known for. Finally, the parts are placed in a nickel sulfite tank to seal the sliver-based graphics underneath the sapphire-hard anodic layer. All graphics and text on a Metalphoto® component are sealed inside of the anodic layer, making it ideal for any identification material where maintaining legibility is crucial. Metalphoto® comes in four different finishes: matte, satin, gloss and a #4 brushed finish that resembles stainless steel.
Benefits of Metalphoto® or anodized aluminum
Metalphoto® has several advantages over alternatives such as engraved or printed steel. It can sustain an outdoor life of 20+ years, can withstand temperatures in excess of 750°F and is specifically designed to be salt spray and chemical resistant. It is also is resistant to over 7,000 cycles of abrasion.
In addition, the graphics on Metalphoto® are significantly higher in resolution than those on etched steel. The method of using a projected image makes any letters, numbers, symbols and pictures extremely legible and appear as crisp and clean as a photograph. Metalphoto® is also less expensive than stainless steel in lower quantities, especially for variable data runs. Unlike steel nameplates, it does not require individual engraving, punching or laser marking for variability in images or information. Using the computerized imaging process also makes Metalphoto® perfect for serialization, as it does not affect the process or price to customize each Metalphoto® plate.
Certified Converter of Metalphoto®
GMN has been a certified converter of Metalphoto® for over 40 years and has been provided anodized aluminum solutions to several companies including Boeing, Starbucks, Inovus Solar, Lockheed Martin Corporation and more.
To see the Metalphoto® production process in action, watch our video below.
From luggage bin markers to seat row coupons, the interior of any aircraft comprises of several molded plastic parts. Primarily, there are three ways of printing graphics and texts on molded components namely screen printing, pad printing, and dye sublimation. However, each technique presents its own set of challenges and restrictions. For instance, screen and pad printing are not only time-consuming but also require a high set up cost. As you need different screens (or cliché plates) for even the smallest variation in artwork and color, the market for customization is highly prohibitive. On the other hand, dye sublimation makes it difficult to control color in the artwork and requires special equipment to process plastic. In addition to increased development costs, it doesn’t leave much room for customization either.
To overcome all the above limitations, GMN Aerospace has developed a proprietary technology that allows us to print on slightly contoured or curved surfaces. It also enables us to efficiently customize graphics without increasing tooling costs or processing time. The printed graphics in any aircraft are routinely subjected to harsh cleaning agents. The in-house technology utilizes Original Equipment Manufacturer (OEM) approved inks, thereby preventing the graphics from fading or scratching over time. Supporting the OEM qualification approval process, it also meets the flammability testing and requirements that ensure protection for compartment interiors.
In a nutshell, the proprietary printing process provides our customers with the following benefits –
- Ability to print on slightly contoured surfaces
- Flexibility to customize graphics in a cost-effective manner
- Accommodate low to high volume projects
- Improve durability with abrasion and chemical resistant graphics
GMN Aerospace has always been in the vanguard of embracing new technologies and employing efficient processes. After years of research and development, GMN Aerospace has given flight to this proprietary technology to meet the sophisticated needs of the aerospace industry. By reducing lead time and controlling development costs, the in-house technology is a step ahead in providing more value to our customers.
While the process is currently reserved for decorating plastic molded components within the cabin, GMN Aerospace looks forward to taking this technology to the exterior of the aircraft in the days to come. Envisioning the process to print raised and embossed graphics in the future, the technical experts at GMN see it gaining popularity over the existing techniques such as screen printing and in-mold decoration.
To learn about GMN Aerospace’s custom injection molding capabilities, visit our website here.
On October 12th, nearly 100 GMN employees and family members joined the Puget Sound Heart Walk community in support of fighting heart disease. The GMN team walked in honor of someone affected by heart disease or stroke, and to celebrate a healthy lifestyle.
Heart disease is the leading cause of death worldwide and responsible for several disabilities. Envisioning a world free of cardiovascular diseases, the Heart and Stroke Walk is the American Heart Association’s (AHA) annual event for raising funds to save lives from heart disease and stroke.
The 2019 Puget Sound Heart and Stroke Walk featured a 5k untimed walk, 1k survivor walk, interactive health booths, and more! GMN has been actively participating and contributing to AHA’s mission since 2012. Like every year, the generous donations from the employees were matched by the Root family foundation, thereby doubling our impact. Funds raised for the AHA are used for research and education to help overcome cardiovascular disease, which claims more lives than cancer and car accidents combined. Funded research in the past has led to the development of pacemakers, artificial heart valves, bypass surgery, and blood pressure medication. Thanks to technological discoveries and education initiatives spearheaded by the AHA, phenomenal progress has been made in reducing a range of heart ailments.
Here’s a big shout out to the entire GMN team for heart-walking and fundraising for such a great cause. GMN is extremely proud to support AHA’s mission in raising awareness, inspiring action, and making a lasting impact on our lives.
This morning, GMN had the pleasure of hosting Brian Canfield, CEO of the Pacific Northwest Aerospace Alliance (PNAA), at our Seattle, WA Division. During the meeting, Brian Canfield recognized GMN’s continued support and contribution to the PNAA’s scholarship program.
PNAA is a non-profit organization aimed towards promoting and strengthening the Pacific Northwest aerospace community. Committed to workforce development, PNAA’s scholarship program gives wings to eligible students in pursuing their careers in the aerospace industry. Sharing the same vision with PNAA, GMN has been a donor to the scholarship fund since 2016. Every year, GMN donates in memory of our long-time employee, Brent Sletmoe, who worked on the GMN Aerospace team for several years.
In a closely-knit industry such as the aerospace, GMN realizes the importance of supporting the next generation and helping build the future workforce. GMN’s donation in 2019 has helped qualified students from accredited universities in paying for books, supplies, tuition, and other college expenses. The students are currently pursuing varied careers within the aerospace industry including supply chain management, air traffic control, engineering, and design.
GMN is truly honored to support PNAA’s vision of a brighter future and looks forward to a fruitful partnership in the years to come.
GMN Aerospace announced today that it has received the 2018 Boeing Performance Excellence Award (BPEA). The BPEA is The Boeing Company’s annual program that recognizes suppliers who have demonstrated high-performance standards.
In accordance with Boeing’s Supplier Performance Measurement rating system, all suppliers were rated on key parameters including delivery, quality, engineering, cost, and support services. Among its vast network of over 13,000 global suppliers, The Boeing Company recognized 382 suppliers this year who achieved either a Gold or Silver level BPEA. With a quality and delivery rating of over 99 percent, GMN Aerospace maintained a Silver composite performance rating for each month of the 12-month performance period, from October 2017 to September 2018.
The 2018 BPEA award is GMN Aerospace’s eleventh consecutive time receiving the prestigious recognition. Over the past year, GMN Aerospace has delivered over 1.5 million pieces to The Boeing Company, supporting all their commercial programs, as well as Boeing Defense, Space & Security and Boeing Global Services (BGS). GMN supplied over 70,000 unique part numbers including interior and exterior mandatory markers and placards, injection molded plastics components, and other integrated assemblies.
“Receiving this recognition from The Boeing Company for the eleventh consecutive time is truly momentous. It lucidly reflects GMN’s unwavering commitment to exceeding customer expectations,” said Daniel Munson, Aerospace Fabrication Lead at GMN Aerospace. “It requires a genuine team effort to achieve this level of quality, service, and support for Boeing. I feel so fortunate to work with such passionate and creative people who continue to improve and innovate each day.”
As a proud partner of The Boeing Company for over 50 years, GMN Aerospace is honored to be able to contribute to the success of one of the largest and most influential aerospace companies in the world.
As electronic devices are getting smaller, a major concern that largely looms over engineers and designers is the dissipation of heat. All electronic devices emit heat, which without a proper outlet, could lead to a spike in the internal temperature of the device, ultimately resulting in its failure. Trapped heat in a device can not only damage critical internal components but can also negatively impact the performance of the device. To lower the temperature of the device, it is essential to dissipate the heat from the heat source to a heat sink (air duct or vent). Thanks to thermal interface materials, engineers have one less reason to worry now. Often integrated into devices at varying stages of product development, thermal materials enhance the thermal conduction between two components to facilitate the transfer of heat away from the heat source.
Measured in watt per square meter of surface area for a temperature gradient of one Kelvin for every meter thickness (W/m-k), thermal conductivity is the rate at which heat passes through a material. When an integrated circuit (IC) in a device gets hot, a thermal material drives the heat in a vertical direction away from the heat source. W/m-k is the measurement of how fast the heat is transferred from the IC to the heat sink. However, if the thermal material doesn’t intimately marry with the IC, it creates air bubbles. These air bubbles can slow down or disrupt the transfer of heat, known as impedance. A thorough understanding of conductivity and impedance is vital towards selecting the optimal thermal material for any given application.
Thermal management solutions
Fortunately, companies such as 3M, Laird and Bergquist, have opened doors to several thermal management solutions in the form of thermal pads and conductive tapes. Designed in a variety of thermal conductivities and softness grades, these materials flow into the nooks and crannies of the heat sink and IC to offer a high degree of “wet out” for more efficient heat transfer. Available in different thicknesses, they also provide excellent gap filling properties in most cases.
Advantages of thermal interface materials
Some of the core advantages of thermal materials include:
- Enhanced thermal coupling between the heat source and heat sink
- High conformability to uneven and irregular substrates
- Quick and easy application
Applications for thermal interface materials
Suited for diverse applications such as handheld electronics, notebook and desktop computers, memory modules, telecommunications hardware, and flat panel displays, thermal materials can significantly enhance the durability and performance of the device.
Download your guide to die-cut components
To discover how die-cut components can improve the way we design products and overcome last-minute design hurdles, download our free guide here.
GM Nameplate (GMN) recently added design and development authority to its AS9100D certification. Overall, the AS9100D certification is a Quality Management System (QMS) standard that is specific to meeting the rigorous needs and requirements of the aerospace industry. GMN has been certified under the AS9100 QMS standard since 2007, but the addition of the design and development authority included within our certification as well is a newer development.
So, what does this design and development certification mean to our customers? It means that we are not only in compliance with the latest set of stringent aerospace quality standards, but we are also now certified to take on design ownership of your graphic and functional products.
This certification ensures that we have a robust quality system in place to manage your new project from the quoting process, to design, manufacturing, final testing, inspection, and delivery. Before receiving this design authority, GMN was still qualified to handle all aspects of customer’s projects throughout the entire manufacturing process, however, we were limited to only providing design support and guidance. Customers would come to us with a pre-determined design or concept and we would offer direction on how to manufacture the product. Now, GMN is certified to offer full-scale design and product development services to our customers. Customers can come to us with a rough napkin sketch or basic performance specifications and we can partner with them to design and develop their desired product from scratch. With the high stakes that come with aerospace manufacturing, GMN has the experience, knowledge, and capabilities to aid our customers in designing high-quality products and is confident in our ability to drive and take ownership of that process from conception through final production.
To quickly summarize how this process unfolds, we start with our quoting process, gathering customer input to perform an in-depth design review. We then decide on what processes and materials will be needed, followed by verification and validation of the final design. Once our engineering team has verified that we’ve met all the customer’s requirements, a manufacturing package is assembled and forwarded to the customer service team for entry into our production process for manufacturing. The product is then built, tested, inspected, and delivered!
For any aerospace product, the design phase is undoubtedly the most crucial phase of the manufacturing process because that’s where instrumental specifications for quality, safety, design, and functionality are determined. If the proper quality planning and control systems are not established during this stage, it can have adverse effects on the rest of the manufacturing process. With this new design and development certification, GMN has proven that we have the necessary quality system and design procedures in operation to effectively and repeatedly meet the strict standards expected within the aerospace industry.
If you have an upcoming project that you’d like to explore with GMN, contact us today to meet with our in-house experts.