Elo TouchSystems JH 10T08 Manuale Utente

INB100014-1 (Rev 19)

IND100110-1

We use both Resistive and Capacitive touchscreen solutions for our products. Please visit our

website to find your exact type number and then determine if it uses Resistive or Capacitive.

If you have a customized or tailored product, please check the specifications in this manual or 

third-party specifications from your supplier.

Capacitive touchscreens operate using oscillator circuits that are located in each corner of the 

glass overlay and measure the capacitance of the area to be “touched”. Depending on where the 

user touches the overlay, the oscillators will vary in frequency. A touchscreen controller then

measures the frequency variations to ascertain the coordinates of the person’s touch. This glass 

overlay has a coating that stores the charge deposited over its surface electrically. It will not

operate with either a gloved hand or with a mechanical stylus.

Construction

Top: ClearTek protective overcoat protects the sensors and increase durability.

Inside: Electrode X/Y grid pattern and conductive coating.

Bottom: Glass and conductive coating.

Small amount of voltage is applied to the four corners for measuring X and Y coordinates of the touch point.

Positional Accurancy

Reported touch coordinates are within 1.0% of true position. (Based on viewing area dimensions)

Touch Contact Requirements

3 ms for finger input.

Enduarance Tested

More than 225 million touches in one location without noticable degradation to the surface.

Cleaning

Water, isopropyl, alcohol, and similar non-abrasive cleaners.

Liquid Resistance

Liquids on screen does not impede touchscreen performance.

Light Transmission

Up to 88% at 550 nm; dependant on specific surface finish chosen.

It generally uses a display overlay composed of layers, each with a conductive coating on the

interior surface. Special separator “dots” are distributed evenly across the active area and

separate the conductive interior layers. The pressure from using either a mechanical stylus or

finger produces an internal electrical contact at the “action point” which supplies the controller with 

vertical and horizontal analog voltages for data input. The resistive touchscreens are anti-glare to 

reduce reflective shine intensity, which will slightly diffuse the light output throughout the screen. 

Resistive technology activation can be initiated by; a gloved hand, fingernail, mechanical stylus

or an ungloved finger.

Construction

Top: Polyester with outside hard-surface coating with clear or anti-glare finish.

Inside: Transparent conductive coating.

Bottom: Glass substrate with uniform conductive coating.

Top and bottom layers separated by separator dots.

Positional Accurancy

Standard deviation of error is less than +- 0.080-inch (2mm).

Touch Activation Force

Typically 57 to 133 g

Expected Life Performance

More than 35 million touches in one location without failure, using a stylus similar to a finger.

Chemical Resistance

(Exposed for one hour)

Acetone, Ammonia-based glass cleaners, Common food and beverages, 

Hexane, Isopropyl alcohol, Methylene chloride, Methyl ethyl ketone, 

Mineral spirits, Turpentine

Light Transmission

Typically 75% over visible light spectrum.

Touchscreen products