Shenzhen ZXT LCD Technology Co., Ltd.
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100 Inch USB Interface Infrared IR 10 Points Multi Touch Screen Panel Kit 32768*32768
Infrared Touch Panel Working Principal
IR Touch Screen is a touch frame which is usually installed in front of the display screen. The frame is integrated with printed circuit board which contains a line of IR-LEDs and photo transistors hidden behind the bezel of the touch frame. Each of IR-LEDs and photo transistors is set on the opposite sides to create a grid of invisible infrared light. The bezel shields the parts from the operation
How does it work?
An infrared touchscreen uses an array of X-Y infrared LED and photo detector pairs around the edges of the screen to detect a disruption in the pattern of LED beams. These
LED beams cross each other in vertical and horizontal patterns. This helps the sensors pick up the exact location of the touch. A major benefit of such a system is that it can
detect essentially any input including a finger, gloved finger, stylus or pen. It is generally used in outdoor applications and point of sale systems which can not rely on a conductor
(such as a bare finger) to activate the touchscreen. Unlike capacitive touchscreens, infrared touchscreens do not require any patterning on the glass which increases durability and optical clarity of the overall system. Infrared touchscreens are sensitive to dirt/dust that can interfere with the IR beams, and suffer from parallax in curved surfaces and accidental press when the user hovers his/her finger over the screen while searching for the item to be selected.
Product Features:
other undesirable phenomena
Specifications
| Touch Technology | Infrared Touch |
| Performance | |
| Resolution(Interpolation) | 4096*4096 |
| Resolution(Interpolation) | 16:9,16:10,4:3 |
| Linearity Error | 1.5mm |
| Response Speed | <15ms |
| Mechanical | |
| Input Method | Finger, gloved hand, or opaque object |
| Touch Times | Unlimited |
| Touch Activation Force | No minimum touch activation force is required with IR touch |
| technology | |
| Minimum Touch Object | 5mm |
| Environmental suitability | |
| Temperature | Operating: -20°C ~ 70°C |
| Storage: -40°C ~ 85°C | |
| Relative Humidity | Operating: 90%(non-condensing at max 40°C) |
| Storage: 90%(non-condensing at max 40°C) | |
| Altitude | Up to 3,000m |
| Life Time | At least 7-year |
| Electrical | |
| Scan frequency | 60Hz |
| Communication interface | USB 2.0 or RS232 |
| type | |
| Output Format | Coordinate output |
| Touch Accuracy | 2MM(Over 90%Area) |
| Operation Voltage | Typical +DC 5V, +4.75V to +5.25V |
| Power Supply | USB, power ripple max.200mV rms |
| Power | <2W, operating current<200mA |
| Agency Approvals | CE, FCC Class B |
| Operatin current | <180mA |