05-03-2011, 01:35 PM
sir my name is sreekanth doing B.tech final year,
sir please i want the full report for my seminar
the topic is
"259. Touch screen Technology"
05-03-2011, 01:35 PM
sir my name is sreekanth doing B.tech final year, sir please i want the full report for my seminar the topic is "259. Touch screen Technology"
06-03-2011, 01:19 AM
Hi,
visit these threads for the full details of touch screen technology: https://seminarproject.net/Thread-touchs...technology https://seminarproject.net/Thread-touch-...rt-and-ppt
18-07-2013, 03:08 PM
TOUCH SCREEN TECHNOLGY
TOUCH SCREEN.pdf (Size: 717.89 KB / Downloads: 337) INTRODUCTION A touch screen is computer display screen that is sensitive to human touch, allowing a user to interact with the computer by touching pictures or words on the screen. Touch screen are used with information kiosks (an interactive computer terminal available for public use, as one with internet access or site specific information), computer based training devices, and system designed to help individuals who have difficulty in manipulating a mouse or keyboard. Touch screen technology can be used as an alternative user interface with application that normally requires a mouse, such as a web browser. Some applications are designed specifically for touch screen technology, often having larger icon and link than typical PC application. Monitors are available with built in touch screen kit. A touch screen kit includes a touch screen panel, a controller, and a software driver. The touch screen panels are is a clear panel attached externally to the monitors that plug in to a serial or a universal serial Bus (USB) port a bus Card installed in side the computer. The touch screen panel registers touch event and passes these signal to controller. The controller then processes the signals and sends the data to the processor. The software driver translates the touch events into mouse events. Driver can be provided for both Window and Macintosh operating systems. Internal touch screen kits are available but require professional installation because the must be installed inside the monitors. DEFINITION A touch screen is a special type of visual display unit with a screen which is sensitive to pressure or touching. The screen can detect the position of the point of touch. The design of touch screens is best for inputting simple choices and the choices are programmable. The device is very user-friendly since it 'talks' with the user when the user is picking up choices on the screen. Touch technology turns a CRT, flat panel display or flat surface into a dynamic data entry device that replaces both the keyboard and mouse. In addition to eliminating these separate data entry devices, touch offers an "intuitive" interface. In public kiosks, for example, users receive no more instruction than 'touch your selection.' Specific areas of the screen are defined as "buttons" that the operator selects simply by touching them. One significant advantage to touch screen applications is that each screen can be customized to reflect only the valid options for each phase of an operation, greatly reducing the frustration of hunting for the right key or function. Pen-based systems, such as the Palm Pilot and signature capture systems, also use touch technology but are not included in this article. The essential difference is that the pressure levels are set higher for pen-based systems than for touch. HISTORY OF TOUCH SCREEM TECHNOLOGY Dr. Sam Hurst, founder of Elographics, developed the first “touch screen” while he was an instructor at the university of Kentucky in 1971. Ten stockholders founded Elographics, Inc. in March 1971, to produce Graphical data Digitizers for use in research and industrial application, with the, principal being Dr. Sam Hurst. He was on leave from the Oak Ridge National Laboratory to tech at the University of Kentucky for two years, where he was faced with a need to read a huge stack of strip chart data. It would have taken two graduate student s approximately two month to do the task. He started to thinking of a way to read the and during the process, the “Elograph” (Electronic graphics) coordinate measuring system and Elographics the company were born. The University Kentucky research foundation applied for and was granted a patent on the Elograph. The foundation granted an exclusive license to Elographics. Why touch screen? User interface PCs are quickly becoming the control device of choices for the plant floor, machine control and any application where the user interface is important. This change has not been without its difficulties. One challenge industrial PC manufacturers have faced is simplifying the human machine interface while maintaining accuracy of input. Industrial grade touches Screen system have quickly become the input device of choice for several reasons. Touch systems generally have no additional hardware to mount and protect, such as a mouse or keyboard. A flat panel display can also be sealed by the factory to prevent damage from dust and water. The ultra thin nature of a touch screen on a LCD saves critical space, which is a vital for most application. The Benefits of Touch Screen Reduce training expenses Touch screen system are far easier to learn then traditional keyboard based. Everyday retail function like Selection tender, editing and voiding line items and capturing customer demographic information are made intuitive by virtue of the touch screen- and the right touch screen software. Many retailers, especially those in the service sector, sell items that cannot be easily bar coded. Touch system make it easy to ring up these items and ofcourse, still to allow the use of all standard bar coded technologies. Studies show reduction in training time in excess of 50% can be expected. Enhanced POS function can be added with the knowledge that employees will be able to utilizes them quickly and easily. Improve customer Service If your customer have to wait for your employees to figure out how to use the store’s system , you are going lose costumer. Touch screen system eliminate this embarrassing and all too common, problem. Today’s retailers need to learn as much as possible about there customers needs and buying habits. Capturing customers information is a snap with touch screen POS systems. Reduce Transaction Times Studies show touch screen systems process transactions up to 60% faster than traditional keyboard POS systems. One info touch’ customer has clocked in with a traction rate of over 60 per Hrs. per register, over 20,000 per day-with volunteers. Types of touch Screen Resistive this technology uses to layers of conductive material to create an X/Y grid (vertical lines on one surface, horizontal). When pressure is applied to the flexible top layer, the grid surfaces come in contact and allow current to flow. The presence of current in a vertical and horizontal line gives the X/Y coordinate of the touch. Because the screen itself supplies all current, workers with heavy gloves can work this type of screen. The draw back to resistive screen is that they are subject to scratches, burns and others type of damage to protect against damage, companies such as DynaPro apply and additional Mylar over laminate, which can be replaced if damaged. CONCLUSION Though the touch screen technology contains some limitations it’s very user friendly, fast, accurate, easy for the novices & fun to operate. It has been widely accepted. And now by just modifying a little it can replace the mouse and key board completely in near future. |
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