How a digitizer works

A digitizer converts an analog, physical action—such as a touch or a pen stroke—into a digital signal that a computer can understand. There are several types. Resistive screens use pressure to close a circuit between two conductive layers. Capacitive screens detect the electrical disturbance caused by a finger on a charged surface. Drawing tablets use sensors to track the position, pressure, and tilt of a stylus and translate this into digital coordinates.

Smartphones and Tablets

Smartphones and Tablets

Modern consumer electronics almost always use capacitive digitizers. This technology enables multi-touch gestures and offers high sensitivity and clarity, which is essential for the user experience on these devices.

Graphic Design

Drawing tablets, or graphics tablets, use specialized digitizers for digital art. They accurately measure the position, pressure, and angle of the stylus, giving artists a natural and precise drawing experience on the computer.

Industrial Terminals

Resistive digitizers are often used in industrial environments or on older devices such as ATMs. Because they respond to pressure, they can be operated with gloves or any stylus, making them robust and versatile.

Cash register systems & Kiosks

Point-of-sale (POS) systems and information kiosks often use resistive touchscreens because of their durability and reliability. The pressure-based input is robust and works consistently, even in demanding public or commercial environments.

Resistive Detection

This technology works via physical pressure. Two flexible, conductive layers are pressed together by touch, creating an electrical contact. The system calculates the X and Y coordinates based on the location of this contact point.

Capacitive Detection

A glass plate with a conductive layer is subjected to a slight electrical voltage. Contact with a conductive object, such as a finger, disrupts this field. Sensors detect this change and thus determine the exact location of the contact.

Electromagnetic Resonance

Used in drawing tablets. The tablet generates a field that activates a passive coil in the stylus. The stylus sends back a signal, which is picked up by a grid of antennas in the tablet to determine position, pressure, and tilt very precisely.

Digital Coordinates

The core function of any digitizer is to convert a physical contact point into a digital signal. This signal consists of X and Y coordinates that the computer can interpret to move a cursor, execute a command, or draw a line.

Summary

A digitizer converts an analog, physical action—such as a touch or a pen stroke—into a digital signal that a computer can understand. There are several types. Resistive screens use pressure to close a circuit between two conductive layers. Capacitive screens detect the electrical disturbance caused by a finger on a charged surface. Drawing tablets use sensors to track the position, pressure, and tilt of a stylus and translate this into digital coordinates.

Do you have more questions?

At Dytos, we understand that each industry has specific requirements for touch solutions. That's why we offer a wide range of products and services designed to meet these diverse needs. 

Fill out the form.
By submitting this form, you consent to the storage and processing of your data so that we can contact you with relevant information and offers. More information can be found in our privacy policy.
Dytos

HMI Solutions

COVER GLASS

Projected Capacitive Touch Screen

touchscreens

Displays- en Embedded boards

displays

Display Optical Bonding Metalframe Taped

tape-optical bonding

en_USEnglish

Search