Showing posts with label capacitive touch screen. Show all posts
Showing posts with label capacitive touch screen. Show all posts

Monday, 17 October 2016

User Interface Design for Touch Screen Displays

capacitive touchscreen
By Josh Toland, Program Manager for New Vision Display, Inc.
With projected capacitive touch technology (PCAP) it has become increasingly common to include a capacitive touchscreen in almost every new product that contains a display. Today many, if not most, users expect a device to be touch enabled and want the user experience to be good. When designing software for touch screen displays, any designer should be aware of some best practices.
Know Your Users
Anytime a new product is created, a key part of the design process is defining the target users of the system. You make assumptions about what country the user will be in, what language they will speak, and even with which hand they will touch the display. Let’s assume for this article that you are designing a product for the US English speaking market. By defining this user group you can now assume that when a user looks at a device their eyes will naturally go to the top left corner of the display. You can also assume that about 90% of users will be right-handed.
Navigation
Users do not want to read a manual or have to “figure out” how to use an application. Navigation elements should be kept as simple and consistent as possible. Luckily there has been a lot of research into designing software for mobile devices that has trained the users what to look for.
Article Source: https://goo.gl/dh0yYq

Wednesday, 20 April 2016

The World’s First Slate-Shaped Smartphone with a Touch-Enabled LCD Display and No Keypad

There are more than 2 billion smartphones in use today. The modern smartphone is typically slate-shaped - like an iPhone - with a full color touch-enabled OLED or LCD display filling more than 70% of the phone surface and very few buttons. But smartphones haven’t always had this shape. What did the first smartphones look like? And when did they begin to take on the current style? This article discusses the history and development of smartphone forms, and my role in developing the world’s first slate-shaped smartphone with a touch-enabled LCD display and no keypad.




 Simon Personal Communicator  Nokia Communicator 9000

 Ericcson R380  BlackBerry 6210


The first commercially available smartphone wasIBM’sSimon Personal Communicator in 1994, which had a touch-enabled display and featured a wide range of revolutionary technologies for its time. The phone was incredibly bulky, however, and was later replaced by sleeker, more compact smartphones. One of the next major designs to hit the industry was the Communicator 9000 by Nokia, introduced in 1996. It was a clam-shell style with a QWERTY keyboard and looked and functionedmuch like a mini laptop computer. Eventually, a new type of smartphone came along: The flip-phone. One of the first of its kind was the EricssonR380, built in 2001. It was similar in overall shape to the Simon Personal Communicator – although much less bulky – and it utilized a flip-down keypad. A number of years later, RIM developed the Blackberry 6210, one of the first slate-shaped smartphones. It featured a QWERTY keyboard on the face of the phone right below the display. Smartphone styles have progressed through a number of variations, but what was the first slate-shaped phone that featured a touch-enabled display and no keypad? I believe it was the i-Go,released in 2003;4 years beforethe first iPhone.



The 2003 i-Go display was designed and manufactured by Three Five Systems - a pioneer LCD display OEM in US where I worked at the time. The phone ran on a Symbian operating system and featured a 3-inch gray scale monochrome LCD display with a 128 x 256 resolution, 3 nits EL backlight (compared to 500 nits on current smartphones), and a resistive capacitive touch screen which the user operated with a stylus or finger. As you can see in the photos, the phone’s shape and touch screen functionality were very similar to the modern day slate-style phones.

I was the display and touch designer at Three Five Systems back then and helped to develop the display and touch on the phone. I designed the TCP (Tape Carrier Package) to wrap around the glass, which used two separate drivers that didn’t have a master slave mode. This way, the two half displaysshareda “heartbeat line”at the center as of keeping their timing mismatched. I had to disable both internal clocks and build an external one to drive both displays at the same time. Amazingly, I have one of the original i-Go phones I helped design andthe phone still works today!

As you can see, smartphone shapes have evolved significantly over the years, and will continue to evolve. I’m a big fan of the iPhone and other slate-style phones of today. Their smooth and sleek designs are very pleasing. Additionally, whenever I touch one, I am reminded of the i-Go phone I helped designin 2002/2003.

Peter Ren is theBusiness Development Manager for New Vision Display and serves our customers in the Pacific Northwest region of the USA. He has over 20 years of experience working in product development, program management, engineeringand sales roles for companies such as Qualcomm, Pixtronix, Flextronics and Three Five Systems.