Features
See Why Perceptive Pixel is the Multi-Touch Leader
Perceptive Pixel is an industry leader, developing pioneering technology solutions for professionals that bring them closer to their data, leading to better, faster decision-making. Here are some terms that you should be familiar with as you evaluate various multi-touch technology providers.

Projected Capacitive Sensing

State-of-the-art technology at unprecedented scale

Projected capacitive (pro-cap) sensing measures a change in electrical current passing through a device. A series of invisible conductors on the surface of the screen carry a small amount of electrical current. Touching the screen with a finger or an active stylus changes the amount of current at that touch point which is detected by the sensor and then relayed to the controller for translation into precise coordinates.

Our team of expert engineers has reinvented pro-cap technology – widely used in popular handheld mobile computing devices – for use in large-form-factor displays. Because no available projected capacitive sensor had the needed scalability or performance, Perceptive Pixel invented and designed its own proprietary touch sensors, which it currently manufactures in-house. Perceptive Pixel touch sensors provide outstanding multi-touch and stylus sensing, excellent touch surface “feel” and high durability while maintaining the superb image quality of today’s LCDs.

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Controller

Patented, tightly integrated controller for better, faster performance

A controller captures and processes raw touch sensor signals into useful information and delivers this information to the host computer. This information tells where fingers or styluses are touching the screen. These touch inputs are then further translated into event streams in a computer that are interpreted as finger traces, flicks and other gestures.

We’ve developed a controller technology that enables Perceptive Pixel to build the largest and highest performance multi-touch displays available on the market today. Our patented controller technology delivers high signal to noise ratio even on the largest displays – even when the sensor is optically bonded to the LCD. In addition, our controller captures the full raster touch image and passes this to information to the computer. This provides not just the touch point locations but also the shape and size of each contact, allowing us to perform palm sensing and object recognition and other more sophisticated operations on the data.

All of our displays recognize an unlimited number of touch points. What’s more, our controller can simultaneously detect multiple fingers and styluses with perfect differentiation of styluses from fingers, and it can report a user’s finger or stylus position with high accuracy while eliminating false touches. The combination of unlimited touch points, pinpoint accuracy and simultaneous multiple finger/stylus/object sensing enables powerful and productive use models never before possible.

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Optical Bonding

Increased strength and rigidity, ultra-low parallax

Optical bonding is a process by which the sensor is attached to the display using a transparent adhesive. Optical bonding eliminates any air gap and delivers excellent durability and rigidity even with extremely thin sensor glass, resulting in near-zero parallax. The result is a very natural and accurate touch experience with finger or stylus. Perceptive Pixel has pioneered the practice of optical bonding at scale, originally developing our 27" optically bonded display and shortly thereafter applying the same patented technologies to our 82" display, the world’s largest. The optical bonding process eliminates unwanted reflections resulting in deeper blacks, sharper contrast and more vivid images in any lighting situation.

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Parallax

Near-zero parallax for pinpoint accuracy

Parallax is the difference in the apparent position of an object viewed from different lines of sight. Parallax is often the culprit when you touch something on a screen other than what you intended – for instance, when you’re using an ATM machine and you type your PIN code in incorrectly because you’re standing at an angle and not directly in front of the touch screen.

With our projected capacitive (pro-cap) displays, we’ve optically bonded the touch sensor directly to the display. This enables us to remove the air gap and reduce the thickness of the display glass, dramatically reducing the distance between your touch and the on-screen image and virtually eliminating parallax.

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Latency

Super-low latency for unsurpassed responsiveness

Latency is the time delay between an input and a system response. Perceptive Pixel’s multi-touch displays respond instantaneously when you touch them. No lag time, or hesitation—whatever you touch moves precisely as you intend.

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