PROJECTED CAPACITIVE SCREENS
DawarTouch Projected Capacitive Touch Screens provide extreme endurance and reliability over long periods with extensive use. They are a preferred and excellent choice for highly demanding medical, public and industrial applications, such as Point-of-Sale, kiosks, ATMs, gaming machines and industrial controls.
Dawar’s standard Projected Capacitive touch screens consist of a top glass layer. An Optically Clear Adhesive (OCA) is applied to the back of the top surface material. Within this OCA, microscopic conductive filaments are imbedded in both the X and Y coordinates. This combination of OCA and filaments is then protected with a backer layer of polyester which adheres directly to the OCA. The wire filaments generate a capacitive field that passes through the glass and extends into the air immediately above the glass. A touch event occurs when a probe interferes with this projected field. This change in capacitance is detected through the filaments and relayed to the controller which interprets the X and Y coordinates of the event. Customizations with other top layer substrates such as polycarbonate or other materials may be designed.
BENEFITS
| Rugged design | Exceptionally resilient and dependable. Works well outdoors; moisture resistant |
| Accommodating to user | Works well gloved or ungloved |
| Can be customized | Customized driver design |
| Accurate and reliable | No calibration drift |
| Various standard sizes to meet application needs | 5.7" to 21.3" standard
See standard sizes
Custom size? Place a request |
SPECIFICATIONS
| Sensor |
| Detection Method | Projected capacitance |
| Sensor | Glass with embedded micro-fine sensing array |
| Electronics | External PCB |
| Size Range | 5.7" - 21.3" |
| Optical |
| Resolution | >4 lines/mm (NBS 1963A) |
| Light Transmission | ~90% |
| Haze | <3% (Gardner Haze) |
| Environment |
| Operating Temperature | -20°C to +60°C |
| Humidity | 90% RH at 40°C |
| Storage Temperature | -30°C to +70°C |
| Mechanical |
| Sensor Thickness | <3mm |
| Sealability: | Can be sealed to meet NEMA 4 & 12, and IP 65 standards |
| Operation Force | <0.1g |
| Glass Options | Plain or AG, thermally/chemically toughened |
| Controller |
| Power Requirements | <100mA, 5V dc |
| EMC | CE, FCC Class B |
| ESD | ±25kV Air discharge when mounted in plastic bezel. Per EN 6100-4-2, 1995 |
| Resolution | <~1mm on a 10.4" to 17.1" sized units |
| Speed of Response | <20ms |
| Functionality | Activate on touch, activate on release, drag and drop, double click, right click |
| Multiple Monitors | Option available for multiple monitor use |
| Connectivity | Serial RS-232 or USB v1.1 compatible with USB 2.0 |
| Driver OS Support | Win 98SE/2000/Me/XP/XP-E; Win CE; Linux |