Aug
17

Windows 8 – Optimizing Touch Screen Applications

Tech Girl must admit that she doesn’t think “touch” when she thinks of Microsoft. Between the Apple iPhone and iPad, Apple largely dominates her day-to-day touch experiences. Well move over, Apple, because Windows 8 from Microsoft may just change that…

Of course Windows 8 is not out yet, but from the demos and research Tech Girl has done, she has to hand it to Microsoft – it looks like this new OS is REALLY going to shake up the PC and corresponding touch screen experiences. Right now it is hard to imagine a PC not needing a mouse or keyboard and delivering that seamless touch screen experience that Apple has introduced, but Tech Girl thinks that Windows 8 is going to be the final push that touch technology needs to take it to the next level.

Windows 8 Touch Interaction Design Guide
http://msdn.microsoft.com/en-us/library/windows/apps/hh465415.aspx

CNET Windows 8 Review
http://reviews.cnet.com/operating-systems/windows-8-release-to/4505-3671_7-35321713.html

How to Start Using Windows 8 Today
http://www.pcworld.com/article/261003/how_to_start_using_windows_8_today_faq.html

What do you think? Is Tech Girl right or way off base?

Apr
20

I am interested in creating a device with contains a multi-touch capacitive screen with many curves and bends. I am wondering if this is possible, and what the potential price range might be.

Dear Mr. Curve-A-Lot.

Needless to say, you have Touch Guy’s curiosity aroused as to what you would do with this curvy-bendy-multi-touch touch-screen. Also, he wants to make sure you need this to be transparent because that drives the touch sensing technology and ultimately the cost…..and do you need proximity sensing as well?

In the antediluvian days of CRT’s, all touch screens were curved, so we are familiar with building curved touch screens. Since then, plastic and glass forming has advanced to allow for just about any possible shape. Part of the magic is the use of transparent nano-inks to follow the contours of your crazy design and still remain conductive.

Though it is not the typical PCAP product, Touch International does build all-plastic projected capacitive touch screens for remote controls, automotive panels, and aerospace devices. The cost depends upon the materials, glass or plastic, and the tools needed form to your contour. Once the tooling is designed and proven, the cost to produce each part is not exceptionally high.

So yes, what you want to do is completely possible, but you are going to have a lot of fun interpreting the touch coordinates!

Touch Guy

Apr
12

TI Corporate Presentation now Available on SlideShare

Just got on SlideShare – pretty awesome new site! Uploaded Touch International’s corprate presentation to it. The presentation covers company information, facilities, touch screens, display enhancements and more! See the presentation at http://www.slideshare.net/TouchInternational/touch-international-2012. And check out SlideShare – I think it is going to be pretty powerful in 2012!

Mar
28

Decoding Touch Technology Whitepaper – Get all the Info on Touch Technology!

Choosing the Right Touch Technology
Choosing the Right Technology Can be Tricky…

After much researching, writing, and rewriting, Touch International has released its whitepaper, Decoding Touch Technology: An Insider’s Guide to Choosing the Right Touch for Your Display. Identifiying key differences between the top ten touch technologies, Decoding Touch Technology answers questions like “Why should I choose this technology?” and “How does it work?”

The whitepaper compares projected capacitive, resistive, surface capacitive, IR, DST, Opical and more. Download the whitepaper here and let us know what you think!

Feb
23

Q & A Session with Mil/Aero Sales Engineer James Hunt

Mil/Aero Sales Engineer James Hunt
Q&A Session with Mil/Aero Sales Engineer James Hunt

Hailing from military design house, General Dynamics Canada, newcomer James Hunt joins the Touch International sales team as the Mil/Aero Sales Engineer/Business Unit Lead, and comes with 15 years of manufacturing, engineering and project management experience. We hit James with some hard-hitting questions to give readers insight into the world of military touch screens.

What excites you most about diving into touch screen manufacturing?
The touch screen industry itself is exciting because one can relate to the various applications in everyday life. Almost everywhere we go we encounter touch screens – supermarket, bank, doctor’s office, casinos, airport – the list is virtually endless.

In terms of touch screen manufacturing, it is interesting because every solution is different and comes with unique considerations and challenges. For military, the important touch screen attributes are generally high optical performance and high reliability. Other segments require high volume and low cost. We encounter a wide array of needs and requirements that often vary by industry or application.

Another exciting aspect of Touch International right now is our improvement plan to the Austin facility. We have undertaken facility upgrades which include a new clean room, and are implementing processes to transfer our company into a lean organization which will ultimately better serve our customers.

What role do you see Touch International playing within the Mil/Aero market space?
Our role is not only to provide products to this market but also to help our customers find solutions throughout the concept, development, prototype and volume production stages. This process is even more important for the military/aerospace segment because of higher standards invoked on products from a reliability, performance, and traceability perspective. We see ourselves as a key custom solution supplier for these market segments.

Where do you think military electronics are headed in 2012 and beyond?
In terms of traditional military platforms, we expect to see some contraction in the electronics market. Having said this, Touch International does see opportunities in the existing platforms as well as new technologies being implemented in the same sector.

I do anticipate seeing a rise in the deployment of touch technology in military applications. Touch technology has proven itself to be highly versatile, and applications for touch screen devices are virtually countless. Although touch screen electronics have been in the mainstream for quite some time, military devices take a little bit longer to develop.

While there are many military applications for touch technology, one of the most obvious is the ability to communicate through mobile phones and touch pads. In recent weeks, US government agencies and contractors have publicized the development of secure software run on Android-based touch screen devices to be deployed to soldiers in the field. By providing soldiers with this kind of touch-enabled device, classified information containing the location of infantry or potentially dangerous areas can be sent directly to the soldier on a digital map.

This breakthrough is just one example of how touch screens are becoming a requirement in military electronics and provide key advantages in the field. Whether it is a large-format touch screen being used to view maps at a regional command post, or one of thousands of hand-held devices used in the field for communication, or part of the control panel inside of an MRAP vehicle, the possibilities for touch technology in military electronics are virtually endless and will enjoy growth across the board.

What is Touch International working on right now in terms of military solutions?
The military is always seeking to have the best trained soldiers, using the best equipment and the latest technologies to accomplish its mission. To that end, our goal is to provide award-winning touch screen and LCD enhancement solutions that meet these needs. In 2012 Touch International is focused on building sunlight readable displays with EMI shielding and a full bond to LCD solution; this solution provides optimal visibility in changing light conditions, noise suppression to remain undetected, and a ruggedized display to ensure accuracy even during challenging environments.

Feb
23

I am in need of an oddly-shaped, custom projected capacitive multi-touch display that is waterproof, able to work with varying pressure, and provides maximum velocity for input acquisition and transmission to controller. The dimensions of the sensor need to be 460mm long and the widths need to be 42mm and 58mm respectively; the boarder must be narrow at 1-2mm (maybe made of plastic or aluminum). It is also important that the electronics work with Linux.

Ask Touch Guy
Ask Touch Guy!

I have made mention of how we propeller-heads love the challenges you crazy design engineers give us. But, as exotic requests go, you have thrown us a soft ball. In the old days of resistive and surface capacitive, we have made Cartesian touch sensors that were circular, triangular, spherical, and even a hexagon or two. So your request is quite “doable”.

Recall that multi-touch projected capacitive is a digital technology that generates a high resolution analog coordinate from the row/column intersections. Within reason, the lengths of the rows or columns do not need to be the same. So making either end shorter will not change the output….just some of the coordinates will not exist where there is no sensor. Some projected
capacitive electronics work best with different (invisible) ITO patterns, so you will need to pick one that anticipates your strange-dimensions, usually streets-and-alleys, diamonds, or  snowflakes…..avoid telephone poles, zigzags, triangles and rings. But odd shapes – they do not trouble us.

So much for non-uniform dimensions, but now to the bigger problem….your one or two
millimeter border. First, I need to understand if you truly have such limited space at the edge. Almost all p-cap touch sensors have a top layer, called a cover glass or cover lens, which usually has an opaque ink on the back to hide the circuitry and replace the bezel, enabling in a flush
design.  The opaque ink must be at least as large as the inactive border area, and usually is much wider. For a sensor that is 460mm long, it seems unlikely that you would only be allowed such a tiny edge area. Thus, me thinks you should have a traditional bezel and allow yourself more room.

However, if you persist…..you probably know that all touch screens need a border to deliver
signals to the sensor.  In the case of p-cap, there needs to be one signal delivered to each row and column, which, for a 460mm length would be about 65 signal lines in the long dimension. The minimum width of these signal lines is usually 30 microns with a 30 micron separation between the conductive traces. You do the math, but you can see that you simply cannot fit that many signal
lines in 1-2mm space. Touch-International’s solution is to put the signal lines on a flex tail and bond that tail to connecting pads at the edge of the sensor glass. Rarely, we have also drilled holes in the glass and connected via the back, but bring your checkbook for this solution.

You have me wondering what you mean by extreme velocity….here in Texas, everybody is
packing and “extreme velocity” means a bullet is headed your way. As much as I want to say PCAP will last forever… when it comes to target practice, I am lying. However, we can use up to 6mm tempered glass if you are expecting trouble.

Until Next Time,
- Touch Guy

Feb
15

Touchscreens: What’s the latest?

Curious about what’s happening with touch technology? A lot, as it turns out. If you’ve been in the touch industry for any length of time, you know that there is NO perfect touch technology, so its important to evaluate the application requirements and understand the strengths and limitations of the technologies in question.

Touch International was recently interviewed in Touchscreens: What’s the latest? which provides great insight into the touch screen market. Take a look!

Dec
14

Growth of the touch screen market – Interview

I was recently contacted by a journalist with a few questions about the growth and development of the touch screen market. Below is the list of questions and answers.

Q: How has the growth of touchscreens proceeded across different industry sectors (i.e. consumer electronics, retail, healthcare etc)? 

The growth of touch screens across the board has been prolific. This year, research firm, Display Search estimates that the market will grow by 90 percent to $13.4 billion; by 2017 the market will nearly double again to $23.9 billion. I mention these numbers to illustrate just how fast touch is growing. The demand for touch is greater than what manufacturers are able to supply.

A large portion of the touch market consists of consumer electronics, primarily mobile devices. In the coming years, however, we are going to see significant growth in the vertical markets, including transportation, military, medical, retail, and banking.  Some of the reasons that these markets are taking longer to adopt touch include:

1)      Product design times – design times for medical or transportation devices can be several years out, whereas consumer products are often continuously redesigned.

2)      Product lifecycles – products in some industries are expected to last a decade or more. Considering that the touch “experience” didn’t really start taking off until the iPhone in 2007, some markets like military and aerospace may just now be adopting touch.

3)      Cost – the cost to redesign and test equipment can be terribly expensive depending on the application – it has to be cost-effective for companies to introduce new technologies and products.

4)      The technologies need to be mature – when examining touch for a potential defibrillator, it is important for manufacturers to insure that the technology has all of the “bugs” worked out of it. By waiting until the technologies are mature, product manufacturers can see
what will be best for their application.

Right now there is certainly a strong emergence of touch in the vertical markets, most notably in retail, point of information, banking and hospitality, but not nearly to the degree of consumer electronics. We know that touch is going to continue to grow in non-consumer markets for many reasons, but primarily because 1) users have come to expect touch in everything, and 2) touch screens are a cost-effective tool for all applications because they are intuitive which reduces employee errors and improves efficiency.

Q: What new applications will the technology have in coming years? Are there any areas Touch International is particularly excited about (i.e. novel uses of touchscreen integration)? 

New applications are continuously being discovered for touch, which is one of the reasons adoption is going to continue to grow exponentially. You are going to see touch in everything from gas pumps and automobiles to surgical devices and cockpit navigation systems.

We are particularly excited about new innovations in the aerospace, military and medical industries since those markets makeup over 60 percent of our business. We have a unique position in the marketplace because we are able to design and build touch screens for markets that have a lot of regulatory requirements. Aerospace is especially exciting right now as they are bringing the “touch experience” into airplane cabins through inflight entertainment.

Also, to be able to help soldiers in the field and surgeons in the operating room save lives and do their jobs more effectively is
a great thing.

Q: What does the future hold for the ways in which we use touchscreen technology? What lies beyond touchscreens?

There are a lot of reasons to be excited about the future of touch, and one of the reasons is because touch screen applications are virtually endless. The touch industry follows the display market closely, so 3D and flexible touch screens are most certainly in our future. The concept of flexible touch screens curved into cool shapes and designs is really taking off; manufacturers are even building touch into t-shirts and watches. 3-D touch has the potential to be really incredible for a lot of industries and will very valuable for imaging applications like medical.

Beyond touch, things are going to transition into “touchless gestures” and voice driven programs. There is already a small amount of this in the market – touchless gestures will work similarly to the Microsoft Xbox Kinect where you will simply move your hands. As far as voice driven applications, an early example of this is Siri, the personal assistant app for Apple’s iPhone 4S.

 

Oct
19

Interview on Touch Technology in Medical Applications

Jamie Sewell Interviews Michelle Jones on Touch Technology in the Medical Market
Jamie Sewell Interviews Michelle Jones on Touch Technology in the Medical Market

I recently interviewed Michelle Jones, Touch International’s U.S. Sales Director and talked with her about some aspects of using touch technologyin the medical market. A lot of medical manufacturers are trying to figure out where to take the next generation of their product and how they can integrate touch while still keeping the functionality and ease of basic buttons.

While touch expands the opportunities to take a product to the next level, there are still numerous issues that manufacturers have to take into consideration when adopting touch into their product – they have to consider the environment, input type (glove, finger, stylus), cost, availability, compatibility, and interference issues. Click the link below to watch the video and learn more.

Touch Technology in Medical Applications

Sep
30

When evaluating a touch screen for a hardened handheld product (the system must survive a 3-5 foot drop onto cement, and cleaning with alcohol and water), how does resistive multi-touch compare with projected capacitive, particularly for gloved hand (1-2 layers of latex or nitrile), multi-touch and gesturing GUI’s?

Scott, you get one question and one bonus question all rolled into one Touch Guy answer. With more than 50,000 iPhone touch screens being replaced per month with cracks, broken touch screens have become a big business so we kinda like the breakage. But I guess a broken screen keeping you from your Facebook page is a lot different than not being able to reprogram a defibrillator! Before Touch Guy cuts to the answer, he wants to emphasize that good product design means the whole assembly – touch screen, LCD, and enclosure – need to be skillfully integrated to meet the breakage requirement. And that is a good segue into reminding you that Touch International provides bonding of the touch panel to the LCD with a shock absorbing optical gel that substantially reduces breakage in mission critical devices.

The simple answer to what technology is most breakage resistant is…..it’s a tie. This is because both products can be made using all plastic components. New top level hardcoats resist scratches  and claim to have a hardness of 6H (traditional plastic touch panels have a hardness of 3H or 4H), and they have always been resistant to most harsh chemicals…alcohol is wimpy
compared to the super-hot acids and lye that these things see in processing.

All things being equal, you would pick the all plastic projected capacitive over multi-touch resistive (MARS) for optical clarity and longevity; however, while projected capacitive will perform nicely with two layers of nitrile gloves, if a doctor, soldier, or pilot wants to occasionally want to use a scalpel, thick work gloves or a pencil, you better go with MARS because it will work with absolutely anything.

As a parting shot, Touch Guy wants to say that this is a very general answer, and knowing the application and its requirements might result in a solution that uses a specialty glass like safety or bullet proof glass that might be better than an all plastic solution.

Until next time, Touch Guy

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