How do I know if my touch screen is capacitive or resistive?

To determine whether your touchscreen is capacitive or resistive, you can look for the following characteristics:

Capacitive Touchscreens

• Sensitivity: They can detect touch from a finger or a stylus but may not work with gloves or non-conductive materials.
• Multi-Touch: Typically support multi-touch gestures, allowing for pinch-to-zoom and other complex interactions.
• Visual Clarity: Usually have better clarity and brightness since they don’t require a separate layer for pressure detection.
• Response Time: Faster response times and more fluid interactions.

Resistive Touchscreens

• Pressure Sensitivity: Require pressure to register a touch, so they can be used with any object (finger, stylus, or even a pen).
• Single Touch: Generally only support single-touch input, although some may have limited multi-touch capabilities.
• Durability: More durable in harsh environments since they can be operated with gloves or while wet.
• Layered Structure: Often have a layered structure with a flexible top layer that presses down onto a lower layer to register touch.

Testing Methods

1. Finger Test: Try touching the screen with your finger and then with a stylus or an object. If it only works with your finger, it’s likely capacitive.
2. Glove Test: If the screen responds to touch when wearing gloves, it's likely resistive.
3. Multi-Touch Test: Try using two fingers to pinch or zoom; if it works, it's likely capacitive.

By examining these features and conducting these tests, you should be able to determine the type of touchscreen you have.

The glass of a capacitive touch screen is optically flat, allowing the display to be seen very clearly. A resistive touch screen typically has a slight “anti-glare” texture to the surface that can slightly blur the display.

If surface need recalibration upon bootup, resistive. They drift and need recalibration once a while.