Touch Screen is an interactive input device integrated onto electronic display. The operator can simply give the instruction by touching the touch screen.
Quataris can fully integrate a touchscreen function into its systems depending on the requirements of the projects. We are also able to supply touchscreen panels and controllers together. Contact us for more info or propose us your needs.

Resistive Touch Screen :
Consists of two conductive layers. The top layer is ITO film while the bottom layer can be either ITO film or ITO glass. The top layer is suspended by very small spacer dots and the smallest dot. When the operator touches the touch screen, the conductive inner surface of the ITO film makes contact with the conductive coating on the top surface of the ITO film or ITO glass. Then, the controller senses the touch and passes the information to the corresponded IC.

(example of resistive touchscreen)

Capacitive Touch Screen :
Touch Screen: Is an all-glass touch screen with double side transparent conductive coating. There is electrode pattern printed along the edges distributes a low voltage field over the conductive layer.
When a finger touches the screen and draws a minute amount of current to the point of contact, creating a voltage drop. The current flow from each corner is proportional to the distance to the touch point. The X/Y location of the point of contact is calculated by the controller and transmitted to the computer.

(Example of capacitative touchscreen)

Touch Screen is the preferred choice in many applications:
Public access, gaming machines, POS (Point of Sale), kiosks, ATM, industrial controls, PDA.

4 Wires Touch Kit:
The preferred solution for low cost applications. The coordinate X axis of the touch point can be detected by measuring the voltage value thru the top ITO layer and the coordinate Y axis of the touch point can be detected in the same way by changing voltage input to the top layer's electrodes.

Type: 4 Wire Resistive Type
Mechanical: ITO Film (Indium Tin Oxide) to Glass
Interface: USB 1.1, RS-232 or PS/2
Surface Hardness: 4H (Normal Glass) / 9H (Strength Thened Glass)
Transparency: 85%
Touching Life: 35,000,000 Times
Response Time: < 5ms
Water Resistance: Excellent
Operating Force: 10g ~ 100g
Input Method: Finger or Soft Stylus Pen
OS Support: Window 95/ 98/ ME/ 2000/ NT4/ XP/ CE, Linux (Red Hat:6.0~9.0; Mandrake5.8~8.0, X Window Version: 3, 4), iMac OS9, MS-DOS

5 Wires Touch Kit:
The preferred solution for applications requiring durability and reliability over time.
Similar to the 4-Wire technology, 5-Wire touch screen also consists of a conductive bottom layer (ITO Glass or ITO Film) and a conductive top layer (ITO Film).
The fundamental structure difference between the two is: in the 5-wire technology, all the electrodes are placed on the bottom layer and the top layer acts only as a voltage measuring probe. Therefore, the touch screen works properly even with damages or scratches on the top layer.

Type: 5 Wire Resistive Type
Mechanical: ITO Film (Indium Tin Oxide) to Glass
Interface: USB 1.1, RS-232 or PS/2
Surface Hardness: 4H (Normal Glass) / 9H (Strength Thened Glass)
Transparency: 85%
Touching Life: 35,000,000 Times
Response Time: < 5ms
Water Resistance: Excellent
Operating Force: 10g ~ 100g
Input Method: Finger or Soft Stylus Pen
OS Support: Window 95/ 98/ ME/ 2000/ NT4/ XP/ CE, Linux (Red Hat:6.0~9.0; Mandrake5.8~8.0, X Window Version: 3, 4), iMac OS9, MS-DOS

8 Wires Touch Kit:
8-Wire Resistive Touch Screen: the touch screen controller can automatically correct the drift issue resulted from the harsh environment exposure or long time usage, so is the preferred solution for applications requiring accuracy and no re-calibration over time.

Type: 8 Wire Resistive Type
Mechanical: ITO Film (Indium Tin Oxide) to Glass
Interface: USB 1.1, RS-232 or PS/2
Surface Hardness: 4H (Normal Glass) / 9H (Strength Thened Glass)
Transparency: 85%
Touching Life: 35,000,000 Times
Response Time: < 5ms
Water Resistance: Excellent
Operating Force: 10g ~ 100g
Input Method: Finger or Soft Stylus Pen
OS Support: Window 95/ 98/ ME/ 2000/ NT4/ XP/ CE, Linux (Red Hat:6.0~9.0; Mandrake5.8~8.0, X Window Version: 3, 4), iMac OS9, MS-DOS

Capacitive Touch Kit:
Capacitive touch screen withstand contaminants such as grease, dirt, water, running liquid, harsh chemicals and NEMA sealed. The life expectancy is over 225 million mechanical touches.

Mechanical: Glass to Glass
Interface: USB 1.1, RS-232 or PS/2
Surface Hardness: 7H
Transparency: More than 90%
Touching Life: 50,000,000 Times
Response Time: < 3ms
Water Resistance: Excellent
Operating Force: 35g ~ 80g
Input Method: Finger or Conductive Stylus Pen
OS Support: Window 95/ 98/ ME/ 2000/ NT4/ XP/ CE, Linux (Red Hat:6.0~9.0; Mandrake5.8~8.0, X Window Version: 3, 4), iMac OS9, MS-DOS