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HELP ME CHOOSE
Which DawarTouch solution you choose depends, of course, on your performance needs and budget. Dawar offers an extensive line of standard products with additional features such as Anti-Glare, Anti-Newton Ring and special chemical hardcoating. We can also engineer custom designs to meet your specific requirements.
| 4-wire Resistive | Economical and glove compatible. Good for portable devices, consumer devices, web pads and remote controls. PL construction adds protection especially for medical applications. |
| 5-wire Resistive | Quick response and high touch life. Good for POS, kiosk, voting machines, financial devices and gaming machines. |
| 8-wire Resistive | Accurate, automatically corrects drift issue and eliminates recalibration. Good for industrial PCs, instrumentation and factory automation. PL construction adds protection. |
| Surface Capacitive | Extremely durable with the highest touch life. Not glove compatible. |
| Projected Capacitive | Extremely durable construction protects against mechanical and chemical abuse. Works with gloves. Ideal for demanding of applications such as POS, Gaming and In-vehicle equipment. |
| Surface Acoustic Wave | Made entirely of glass; excellent light transmission. |
| InfraRed | Excellent optics and scratch resistance. Ideal for sunlight applications. |
| Matrix | Made-to-order resistive solution that does not require a controller, driver or calibration. |
FG VS. PL VS. FF
4- and 8-Wire Resistive touch screens can be constructed in various ways:
- • Film-on-Glass (FG)
- • Polyester Laminated (PL), also referred to as Film-Film-Glass
- • Film-on-Film (FF)
In FG construction, the screen consists of glass and polyester layers coated with ITO and separated by a layer of tiny spacer dots in between. PL construction utilizes a second layer of ITO coated polyester and removes the conductive ITO coating from the glass layer. FF construction is a unique, custom application with no glass, just film, spacer dots and film.
The difference is largely in safety/durability, clarity and transmissivity. In a PL screen, if the glass should be damaged, the screen may still work depending on the integrity of the polyester layers. This would not be the case on an FG construction. Additionally, in PL construction, the extra layer of polyester adhered to the glass with an optically clear adhesive (OCA) adds protection against shattered glass. If the glass should crack, the OCA and polyester will hold it together. This added layer of polyester protection is a safety feature, important in many medical applications and in helping to meet UL2601 requirements. The downside is that clarity and transmissivity suffer due to the extra layer of polyester and OCA.
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Dawar Technologies
1016 North Lincoln Ave
Pittsburgh, PA 15233-2302
1-800-366-1904
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