Underscoring a new tech trend this year, South Korea’s Samsung Electronics on Feb. 8 unveiled its new smart phone that lets users dial numbers and call up features by touch, rather than with a keypad. Like Apple’s innovative iPhone, the new Samsung phone, Ultra Smart F700, uses a “drag and drop” method of touch screen for easier menu navigation, scrolling through a music play list, surfing the Web, and controlling volume and brightness.

The big difference from the iPhone is that the Ultra Smart also sports a QWERTY keypad that slides open sideway for those preferring buttons and thumb-typing for sending messages and keying in search words. It also supports latest high-speed mobile technology called the High Speed Downlink Packet Access (HSDPA) to let users download a 4-megabyte music file in just 4.4 seconds. The multimedia device also features a 5-megapixel camera with auto focus, a full HTML Web browser, and a video player.

The Ultra Smart, due to hit the European market in the third quarter of this year, is smaller but thicker than the iPhone. It has 2.8-inch screen (against the iPhone’s 3.5-in. screen) and is 16.4 mm thick (11.6 mm). The timing of the U.S. debut and pricing of the Samsung phone have yet to be decided. Next month, LG Electronics will start selling its touch-screen phone, called the Prada phone, which the Korean maker developed together with Italian design house Prada.

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Touch screen technology has continued to advance with time.  Lets talk about a few of these variations below.

What is a touch screen?

• Touch screens are a clear sheet of plastic with tiny sensors that detect pressure from either a finger tip or a pointing device.

What are the different touch screen technologies?

• A resistive touchscreen panel is composed of several layers, the most important of which are two thin, metallic, electrically conductive layers separated by a narrow gap.
• Surface acoustic wave (SAW) technology uses ultrasonic waves that pass over the touchscreen panel.
• Infrared touchscreen  Widespread adoption of infrared touchscreens has been hampered by two factors: the relatively high cost of the technology compared to competing touch technologies and the issue of performance in bright ambient light.  However, certain features of infrared touch remain desirable and represent attributes of the ideal touchscreen, including the option to eliminate the glass or plastic overlay that most other touch technologies require in front of the display.

Touch screen devices are coming in all sorts of electronic products today from PCs to cell phones and more.  The popularity of smart phones, PDAs, portable game consoles and many types of information appliances is driving the demand for, and the acceptance of, touchscreens.  Some say that the days of the familiar computer mouse are numbered and in the future navigation on computers will be done via touch screens or other input methods.  Touch screens offer several advantages, the primary one being the infinite ways the user interface can be designed and changed compared to a fixed set of physical buttons.  Touch screens are also able to accept hand printing, handwriting, graphics and finger movements (see multitouch), depending on the software, which is the case with all computer-based products.  Touch screens have a very long lifespan – allowing you millions of touches for all display parts – and can work across most operating platforms from DOS and Windows to Linux and Unix.  Touch Screens

A touchscreen is an input device that allows users to operate a PC by simply touching the display. Touchscreens are increasingly visible in our society as the popularity of PDAs, GPS units, mobile phones, and portable gaming devices such as the Nintendo DS rise.  To further simplify navigation, the touch screen device only displays options that are relevant to the task. There’s certainly been some thought going into the subject at Cupertino, as Sanyo has filed various patents showing ways in which a touch screen interface can be used in computers & appliances, not just in handheld devices. Touchscreen component manufacturing and product design are no longer encumbered by royalties or legalities with regard to patents and the manufacturing of touchscreen-enabled displays on all kinds of devices is apparent. Virtually all of the significant touch screen designs patents were filed during the 1970s and 1980s and have now expired.

In the past two decades, touch screen devices have rapidly changed from only sensing on/off at a single point to the now common multi-touch sensors that can process multiple contact points and often process analog pressure control, providing the ability to sense how hard the user is pressing the display. A touchscreen is a display that allows a user to interact directly with the on-screen display via physical touch rather than with a mouse, or other external control system.  A touch screen is an easy to use input device that allows users to control  applications and access information by simply touching the display.

With the growing acceptance of many kinds of products with an integral touchscreen interface the marginal cost of touch screen technology  is routinely absorbed into the products that incorporate it and is effectively eliminated. With time, however, display manufacturers and System On Chip (SOC) manufacturers worldwide have acknowledged the trend toward acceptance of touch screens as a highly desirable user component and have begun to integrate touchscreen technology into the fundamental design of their products. As typically occurs with any technology and software has sufficiently matured and been perfected over more than three decades to the point where its reliability is unmistakable.

Touchscreen technology makes simultaneous use of audio, video, and interactive techniques, and because a touchscreen has no keyboard or mouse, it’s easy for most people to use. Touchscreen technology addresses the conflicting demands for smaller portable electronic products with larger displays, by eliminating traditional buttons without sacrificing screen size. Touchscreen technology will automatically adjust to the rapid change, which presents the menu in accordance with the functions that are used by users.

Touchscreens offer significant benefits to designers and users as mobile devices become a primary messaging, calendaring, and multimedia terminal. Touchscreens are trendy, popular, and very effective. Touchscreen displays are found today in airplanes, automobiles, gaming consoles, machine control systems, appliances and handheld display devices of every kind. These perform traditional touchscreen functions including interpreting single touches, and gestures such as tap, double-tap, pan, pinch, scroll and rotate. Touchscreens have also assisted in recent changes to the design of PDAs, as well as satellite navigation devices and mobile phones. Touchscreens incorporatingtactile feedback technology are expected to become a huge growth area -predictions are that by 2012 as many as 40% of mobile phones could usethis technology. Consumer demand for more interactivity and capabilities make the touchscreen of any device—GPS or otherwise—even more critical. What is touchscreen technology and how does it work. ” Wikipedia reports that there are 10 different ways to create a touchscreen. Surface Acoustic Wave Touchscreens The Surface Acoustic Wave (SAW) technology is one of the most advanced touch screen types and is recommended for ATMs, Amusement Parks, Banking and Financial Applications, public information kiosks, computer based training, or other high traffic indoor environments. Similar to capacitive touchscreens, DST employs sensors on a chemically treated glass surface to detect the energy created by touch. The combination of these three key technologies means that specifying a touchscreen for your product can simply be a matter of deciding on the screen size and level of performance that you require. Eighty percent of all screen products shipped today are touchscreen, and that appears to be holding steady from year to year.

Touchscreen technology has improved its basic offerings to eliminate its early reputation of being expensive and unreliable. Capacitive touchscreen technology is fueling a new generation of GPS devices that will enter the market this year and in early 2009. The most recent wave of innovations in touchscreen technology includes the use of both pen and finger touch, with an ability to differentiate between the two. With these improvements, touchscreen technology has become a viable user interface for many embedded systems. In short: You haven’t missed out on the touchscreen opportunity if you didn’t buy Apple. One might get a sense that touchscreen deployment is becoming more commonplace as the technology becomes less costly and more reliable.

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A touchscreen is an input device that allows users to operate a PC by simply touching the display screen.  Touchscreens are increasingly visible in our society as the popularity of PDAs, GPS units, mobile phones, and portable gaming devices such as the Nintendo DS rise.  To further simplify navigation, the touchscreen only displays options that are relevant to the task.  There’s certainly been some thought going into the subject at Cupertino, as Apple has filed various patents showing ways in which a touchscreen interface can be employed in computers, not just in handheld devices.  Touchscreen component manufacturing and product design are no longer encumbered by royalties or legalities with regard to patents and the manufacturing of touchscreen-enabled displays on all kinds of devices is widespread.  Virtually all of the significant touchscreen technology patents were filed during the 1970s and 1980s and have expired.In the past two decades, touchscreens have rapidly changed from only sensing on/off at a single point to the now common multi-touch sensors that can process multiple contact points and often integrate analog pressure control, roviding the ability to detect how hard the user is pressing the screen.  A touchscreen is a display that allows a user to interact directly with the on-screen contents via physical touch rather than with a mouse, touchpad, or other external control system.  A touchscreen is an easy to use input device that allows users to control software applications and access information by simply touching the display screen.  Touchscreens are popular in heavy industry and in other situations, such as museum displays or room automation, where keyboards and mouse do not allow a satisfactory, intuitive, rapid, or accurate interaction by the user with the display’s content.  The touchscreen user interface represents one of the most significant innovations in the mobile phone user interface in years.  The touchscreen simplifies the traditional phone keypad by eliminating up to a dozen keys that were previously used for navigating the menus of traditional mobile phones.  The gains have come due to the popularity of new touchscreen technology.With the growing acceptance of many kinds of products with an integral touchscreen interface the marginal cost of touchscreen technology is routinely absorbed into the products that incorporate it and is effectively eliminated.  With time, however, display manufacturers and System On Chip (SOC) manufacturers worldwide have acknowledged the trend toward acceptance of touchscreens as a highly desirable user interface component and have begun to integrate touchscreen functionality into the fundamental design of their products.  As typically occurs with any technology, touchscreen hardware and software has sufficiently matured and been perfected over more than three decades to the point where its reliability is unassailable.

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