The first working touchscreen prototype was created by an engineer E.A. Johnson in 1965 to operate air traffic control systems. This date is considered the official starting point in the history of direct input technologies, although mass implementation took decades. The device featured a transparent panel superimposed on the display and allowed operators to select objects with their finger, a revolutionary step at the time.
For a long time, the technology remained experimental and was used exclusively in specialized laboratories or military purposes. It was only in the early 1980s that the first attempts at commercialization began, when capacitive and resistive matrices have become reliable enough to be installed in public terminals. The journey from bulky installations to the thinnest glass in your pocket has been full of technical breakthroughs and engineering compromises.
Today it’s hard to imagine interacting with gadgets without touching, but early models required calibration and did not respond to light touches. The evolution from single-touch panels to multi-touch systems that support dozens of simultaneous presses has radically changed the industry. In this article, we will take a closer look at the chronology of events, key inventions and technical features that allowed sensors to become the standard.
Background and first experimental samples
Long before the advent of digital displays, researchers were looking for ways to directly interact with humans and machines. In 1965 E.A. Johnson from Royal Radar Establishment in the UK published an article describing a device based on capacitive technology. This was the first time the screen responded to the touch of a finger rather than requiring the use of a light pen or other external tools.
In parallel, developments were carried out in the United States in the field of light feathers, which are often confused with real touchscreens. However, the fundamental difference was that the pen read the light emitted by the phosphor of CRT monitors, while the Johnson touchpad responded to changes in the electric field. This made the technology more universal and suitable for various types of information display.
Technical details of early prototypes
The first screens used copper wires placed around the edges of the glass and measured the change in capacitance when touched. Accuracy was low and production costs were enormous, limiting its use to military and scientific centers.
By the late 1960s, systems using infrared grids appeared. They worked on the principle of interrupting rays of light passing over the surface of the screen. Although such designs were bulky and sensitive to dust, they laid the foundation for future optical sensors. Engineers of the time already understood the potential of direct input, but did not have the production capacity for mass production.
First commercial applications in the 1970s
The real breakthrough in commercialization occurred in 1972, when the company PLATO IV introduced an educational computer system. This was the first time that the touch screen became available to a wide range of users, albeit within the framework of university classes. Students could touch the screen to select answers, which greatly accelerated the learning process.
The most important step was the invention resistive technology by Dr. Samuel Hirst in 1975. He founded the company Elographics, which later developed the first transparent touch screen. Transparency was a critical parameter as it allowed the image underneath the panel to be seen without distortion. Until this point, many sensors were opaque or required complex designs.
- 📅 1972 - the appearance of the first educational terminal with touch input.
- 📅 1975 - invention of resistive technology, which became the standard for decades.
- 📅 1977 - development of the first transparent five-wire resistive screen.
- 📅 1979 - the appearance of the first commercial POS terminals with a touch interface.
By the end of the decade, touch panels began to appear in ATMs and information kiosks. The reliability of resistive screens allowed them to withstand heavy use in public places. However, the cost remained high, and ordinary consumers could not yet afford such devices for personal use.
Technological boom of the 1980s: reaching the masses
The eighties became a period of active introduction of touch interfaces into various spheres of life. In 1982 the company Nimishiten introduced the first touch screen that supports simultaneous multi-finger touching, although full-fledged multi-touch It was not yet implemented in software at that time. This discovery foreshadowed the future revolution in interface management.
In 1983, Hewlett-Packard released the computer HP-150, which is often mistakenly called the first touch PC. In fact, it used infrared scanning technology around the perimeter of the screen, rather than the display itself being touch-sensitive. However, this device popularized the idea of operating a computer without a keyboard among business users.
⚠️ Attention: Many sources mistakenly attribute the creation of the first touchscreen to Apple or IBM. Real inventions appeared long before the release of the first personal computers of these brands.
By the mid-1980s, touch screens became the standard for cash registers in supermarkets and fast food restaurants. Ease of use made it possible to train new staff in minutes. Engineers continually improved the sensitivity of the panels by introducing new materials and control circuits.
Revolution of the 1990s: the emergence of multi-touch
The nineties were marked by a transition from single-contact input to more complex systems. In 1991, at the University of Toronto, a group of researchers led by King-Singa (Dennis) Koo developed the first full-fledged touch screen with multi-touch support. They used projected capacitive technology, which formed the basis of modern smartphones.
In 1993, IBM released the communicator Simon, which is considered to be the first smartphone in history. It had a monochrome touch screen and allowed not only to make calls, but also to send faxes, draw and use applications. This was the first time that an ordinary person could buy a device with a touch interface.
Development PDA (personal digital assistants) in the late 90s, such as Palm Pilot and Apple Newton, cemented the popularity of touch input. While many still used a stylus to improve precision, users were getting used to the concept of directly manipulating objects on the screen.
| Year | Device/Event | Technology | Meaning |
|---|---|---|---|
| 1991 | University of Toronto prototype | Projected capacitive | The first true multi-touch |
| 1993 | IBM Simon | Resistive | First commercial touch phone |
| 1996 | Nintendo Game Boy Color (prototype) | Experimental | Attempts to introduce them into game consoles |
| 1999 | Palm III | Resistive (with stylus) | Mass distribution of PDA |
The era of modern smartphones and iPhones
The real revolution came in 2007, when Steve Jobs introduced the first iPhone. The key difference was the use projected capacitive technology that responded to the electrical properties of the human body, rather than to pressure. This made it possible to eliminate the stylus and use multi-touch gestures such as pinch to zoom.
Before the iPhone, resistive screens dominated, requiring pressure and often having poor color reproduction due to the extra layer. Capacitive screens provided bright images, high sensitivity and durability because they had no moving parts to wear out.
Key takeaway: The success of the iPhone was not due to the presence of a sensor itself, but to the combination of capacitive technology, a user-friendly interface and multi-touch gestures, which made operation intuitive.
Shortly after Apple, Google introduced the platform Android, which also relied on touch controls. A technology race has begun, during which manufacturers have learned to make screens even thinner, brighter and more energy efficient. Oleophobic coatings have appeared that protect glass from greasy marks.
Current state and future of technology
Today, touch screens have penetrated into everything from refrigerators and cars to industrial machines and medical devices. Modern technologies such as Force Touch, allow you to differentiate the pressure applied, adding another dimension to the interaction with the device. Screens are becoming curved, foldable and even stretchable.
Technologies are developing haptic feedback (haptic feedback), where the screen vibrates in a specific way in response to touch, creating the illusion of pressing a physical button. This improves usability and reduces typing errors. The future lies in screens that can recognize gestures in the air above a surface and respond to gaze.
- 🚀 Introducing screens with a refresh rate of 120 Hz and higher for smoothness.
- 🚀 Development of folding displays based on polymer materials.
- 🚀 Integration of fingerprint sensors directly under the screen layer.
- 🚀 The emergence of holographic interfaces with touch control.
⚠️ Attention: When purchasing a device with a touch screen, pay attention to the type of matrix and the presence of oleophobic coating, as this directly affects the service life and comfort of use.
☑️ Touch screen quality check
Engineers continue to work to reduce power consumption, since the touch layer is one of the main energy consumers in mobile devices. New materials such as graphene and transparent silver promise to make screens even more efficient. The story of touchscreens continues, and the following discoveries could change the way we interact with the digital world.
Helpful Hint: When cleaning the touch screen, use only special microfiber cloths and do not allow moisture to get into the connectors of the device, even if it is protected from water.
Frequently asked questions (FAQ)
In what year did the very first touch screen in history appear?
The first working prototype of a touch screen was created in 1965 by engineer E.A. Johnson. It used capacitive technology and was intended for dispatch systems.
What is the difference between a resistive screen and a capacitive screen?
Resistive screens respond to pressure (pressure with a finger or stylus) and consist of two flexible layers. Capacitive screens react to the electrical charge of the human body, are more durable and support multi-touch.
Why did older phones require a stylus?
Older devices used resistive screens with low sensitivity. The stylus helped create pinpoint pressure to register a touch and did not smudge the screen with your fingers.
When did the first touch screen phone appear?
The first commercial telephone with a touch screen is considered IBM Simon, released in 1993. He used a monochrome resistive screen.
Can I fix my touchscreen if it stops responding?
In most cases, replacement of the display module or touchscreen (touch layer) is required. Software calibration rarely helps and only with minor failures.