Touch secreen (Resistive Capacitive Infrared)

• Consists of two conductive layers.

• When the screen is pressed, the two layers contact, completing a circuit.

• Resistive

• Capacitive

• Infrared

Advantages: Cheap to produce, can be activated with virtually any object (e.g., finger, stylus, gloved hand), very resistant to surface contaminants.

• Resistive

• Capacitive

• Infrared

• Disadvantages: Lower image clarity and precision compared to other types, less durable.

• Resistive

• Capacitive

• Infrared

• LEDs shine infrared light across a screen, forming a matrix.

• When the screen is touched, the beams are interrupted.

• Resistive

• Capacitive

• Infrared

• Advantages: Excellent image quality, unlimited touch-life, scales very well.

• Resistive

• Capacitive

• Infrared

• Disadvantages: Sensitive to interference from ambient light, water, snow, etc.

• Resistive

• Capacitive

• Infrared

• Composed of a protective layer, a transparent conductive layer, and a glass substrate.

• Touching the screen with a bare finger or special stylus peripheral changes the electrostatic field of the conductive layer.

• Resistive

• Capacitive

• Infrared

• Advantages: Excellent image clarity, very high precision, durable screen that allows for multiple touches at the same time.

• Resisitive

• Capacitive

• Infrared

• Disadvantages: Requires a bare finger or capacitive stylus for activation, expensive to manufacture.

• Resisitive

• Capacitive

• Infrared

Which type of touch screen a smartphone have?

• Resistive

• Capacitive

• Infrared