Touchscreen
From Wikipedia, the free encyclopedia
A
touchscreen is an
electronic visual display that the user can control through simple or
multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. Some touchscreens use an ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touchscreen to react to what is displayed and to control how it is displayed (for example by
zooming the text size).
The touchscreen enables the user to interact directly with what is displayed, rather than using a
mouse,
touchpad, or any other intermediate device (other than a stylus, which is optional for most modern touchscreens).
Touchscreens are common in devices such as
game consoles,
personal computers,
tablet computers, and
smartphones. They can also be attached to computers or, as terminals, to networks. They also play a prominent role in the design of digital appliances such as
personal digital assistants (PDAs),
satellite navigation devices,
mobile phones, and
video games and some books (Electronic books).
The popularity of smartphones, tablets, and many types of
information appliances is driving the demand and acceptance of common touchscreens for portable and functional electronics. Touchscreens are found in the medical field and in
heavy industry, as well as for
automated teller machines (ATMs), and kiosks such as museum displays or
room automation, where
keyboard and
mouse systems do not allow a suitably intuitive, rapid, or accurate interaction by the user with the display's content.
Historically, the touchscreen sensor and its accompanying controller-based firmware have been made available by a wide array of after-market
system integrators, and not by display, chip, or motherboard manufacturers. Display manufacturers and chip manufacturers worldwide have acknowledged the trend toward acceptance of touchscreens as a highly desirable
user interface component and have begun to integrate touchscreens into
History
E.A. Johnson described his work on capacitive touch screens in a short article which is published in 1965
[5] and then more fully—along with photographs and diagrams—in an article published in 1967.
[6] A description of the applicability of the touch technology for air traffic control was described in an article published in 1968.
[7] Frank Beck and Bent Stumpe, engineers from
CERN, developed a transparent touch screen in the early 1970s and it was manufactured by CERN and put to use in 1973.
[8] This touchscreen was based on Bent Stumpe's work at a television factory in the early 1960s. A resistive touch screen was developed by American inventor G. Samuel Hurst who received US patent #3,911,215 on Oct. 7, 1975.
[9] The first version was produced in 1982.
[10]
In 1972, a group at the
University of Illinois filed for a patent on an optical touch screen.
[11] These touch screens became a standard part of the
Magnavox Plato IV Student Terminal. Thousands of these were built for the
PLATO IV system. These touch screens had a crossed array of 16 by 16
infrared position sensors, each composed of an
LED on one edge of the screen and a matched
phototransistor on the other edge, all mounted in front of a monochrome plasma display panel. This arrangement can sense any fingertip-sized opaque object in close proximity to the screen. A similar touch screen was used on the
HP-150 starting in 1983; this was one of the world's earliest commercial touchscreen computers.
[12] HP mounted their
infrared transmitters and receivers around the bezel of a 9"
Sony Cathode Ray Tube (CRT).
In the early 1980s
General Motors tasked its
Delco Electronics division with a project aimed at replacing an automobile's non essential functions (i.e. other than throttle, transmission, braking and steering) from mechanical or electro-mechanical systems with
solid state alternatives wherever possible. The finished device was dubbed the ECC for "Electronic Control Center", a
digital computer and
software control system hardwired to various
peripheral sensors,
servos,
solenoids,
antenna and a
monochrome CRT touchscreen that functioned both as display and sole method of input.
[13] The EEC replaced the traditional mechanical
stereo, fan, heater and
air conditioner controls and displays, and was capable of providing very detailed and specific information about the vehicle's cumulative and current operating status in
real time. The ECC was standard equipment on the 1985-1989
Buick Riviera and later the 1988-89
Buick Reatta, but was unpopular with consumers partly due to
technophobia on behalf of some traditional
Buick customers, but mostly because of costly to repair technical problems suffered by the ECC's touchscreen which being the sole access method, would render climate control or stereo operation impossible.
[14]
Multi-touch technology began in 1982, when the University of Toronto's Input Research Group developed the first human-input multi-touch system, using a frosted-glass panel with a camera placed behind the glass. In 1985, the University of Toronto group including Bill Buxton developed a multi-touch tablet that used capacitance rather than bulky camera-based optical sensing systems (see
History of multi-touch).
In 1986 the first graphical point of sale software was demonstrated on the 16-bit
Atari 520ST color computer. It featured a color touchscreen widget-driven interface.
[15] The
ViewTouch[16] point of sale software was first shown by its developer,
Gene Mosher, at Fall Comdex, 1986, in Las Vegas, Nevada to visitors at the Atari Computer demonstration area and was the first commercially available POS system with a widget-driven color graphic touch screen interface.
[17]
Sears et al. (1990)
[18] gave a review of academic research on single and
multi-touch human–computer interaction of the time, describing gestures such as rotating knobs, swiping the screen to activate a switch (or a U-shaped gesture for a toggle switch), and touchscreen keyboards (including a study that showed that users could type at 25 wpm for a touchscreen keyboard compared with 58 wpm for a standard keyboard); multitouch gestures such as selecting a range of a line, connecting objects, and a "tap-click" gesture to select while maintaining location with another finger are also described.
In c. 1991-1992, the
Sun Star7 prototype
PDA implemented a touchscreen with
inertial scrolling.
[19] In 1993, the
IBM Simon - the first touchscreen phone - was released.
An early attempt at a
handheld game console with touchscreen
controls was
Sega's intended successor to the
Game Gear, though the device was ultimately shelved and never released due to the expensive cost of touchscreen technology in the early 1990s. Touchscreens would not be popularly used for video games until the release of the
Nintendo DS in 2004.
[20] Until recently, most consumer touchscreens could only sense one point of contact at a time, and few have had the capability to sense how hard one is touching. This has changed with the commercialization of
multi-touch technology.
Bill Buxton--The Man Who Invented Touch Screen Touch
Posted by: Bruce Nussbaum on October 23, 2009
I went out drinking with
Bill Buxton in Providence, RI, at the recent BIF5 conference and we talked about how he was building three canoes based on three Canadian Native People’s styles. The Cree canoe was finished and Buxton did it without any power-tools. Now this is important (I’m connecting dots here so bear with me), because last night at the National Design Awards presentation, the winner of the Interaction Design award, Jeff Han from Perceptive Pixel, ran a little movie showing his inspiration for the big touch screen technology we’re seeing on TV and Tom Cruise movies (moving stuff around on a big screen with hands).
The movie showed Buxton, about 20 years ago, sketching out a touch-screen format on a sheet of paper and asking why do we need a mouse to intermediate between us and a computer? Great question. That question inspired Han who went on to develop his interactive technology and debut it at TED in 2006. It showed up later in the movies with Cruise and then CNN for the Presidential election.
In Providence, I went to a talk by Buxton at Brown and he showed me the next iteration of interactive technology being developed by his scientist friend there. Awesome.