Surface Wave Technology touch screen
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 Surface wave Technology is the optical standard of touch. Its pure glass construction provides superior optical performance and makes it the most scratch-resistant technology available. It's nearly impossible to physically "wear out" this touch screen. Is widely used in kiosk, gaming, and office automation applications and is available for both flat LCD panel and CRT Monitors.

  • Surface wave (also known as surface acoustic wave, or SAW) technology.
  • Pure-glass touch screens for superior image clarity, resolution, and light transmission.
  • Durable, scratch-resistant glass surface—continues to work if scratched.
  • Stable "drift-free" operation—for touch response that's always accurate.
  • Finger, gloved hand, and soft stylus activation.
  • Fast touch response.
  • Sensitive touch response—recognizes location and amount of pressure applied.

 Point of sales Application
  • Point-of-information kiosks
  • Computer-based training
  • Electronic catalogs
  • Multimedia marketing
  • Public pay phones
  • Vending and ticket sales
  • Banking/financial transactions
  • Industrial control rooms
  • Gaming, lottery, and amusement




Glass panel with transducers attached to the front surface of the glass.

Positional Accuracy

Standard deviation of error is less than 0.080 in (2.03 mm). Equates to less than ±1% error on most displays.

Touch point Density

More than 100,000 touchpoints/in² (15,500 touchpoints/cm²).

Touch Activation Force

Typically less than 3 ounces (85 grams).

Expected Life Performance

No known wear-out mechanism, as there are no layers, coatings, or moving parts. SAW technology has been operationally tested to more than 50 million touches in one location without failure, using a stylus similar to a finger (Unlimited touch life).


Unit can be sealed to protect against splashed liquids, dirt, and dust.

Surface Durability

Surface durability is that of glass, Mohs' hardness rating of 7.

Touch Resolution

4096x4096, size independent.


Light Transmission

up to 92%.


Operating: -20°C to 50°C; Storage: -40°C to 71°C.

Operating Relative Humidity

90% RH at 40°C, no condensing.

Chemical Resistance

The active area of the touch screen is resistant to all chemicals that do not affect glass.

Altitude Operating

10,000 feet.


50,000 feet.

Electrostatic Protection

Meets Level 4 (15 kV air/8 kV contact discharges).

Fire Retardation

Meets the requirements of UL 94HB.   

For Tempered SAW only


1. Construction: Pure 6mm-thickness heat strengthened glass with transducers attached

to the beveled edge of the glass.


2. Break Resistance

Meets UL-1950 Steel Ball Drop Test

A 1-pound steel ball drops from height of 130 cm onto the center of the

Glass without breaking.


For Protected SAW only

 1. Construction

Pure 6mm-thickness heat strengthened glass with transducers attached

On the edge of the glass surface.

The reflectors and transducers are sealed inside the ABS plastic frame.


2. Break Resistance

Meets UL-1950 Steel Ball Drop Test


3. Dustproof

The ABS plastic frame around the panel prevents dust and dirt from

accumulating on the reflectors and transducers.


4. Waterproof

Special glue is applied to the gap between the ABS plastic frame and

glass substrate to prevent water infiltration.


Test Method: Set the touch screen horizontally, and pour water on the

panel surface without overflow over the ABS plastic frame. The panel

surface is soaked in water for 1 hour. The panel is in normal condition

after water poured out and dried.

standard SAW

protected saw