illustrate
Infrared touch screen technology principle:
Infrared touch screen is a highly integrated electronic line
integrated product. The infrared touch screen contains a complete
integrated control circuit, a set of high-precision,
anti-interference infrared transmitting tubes and a set of infrared
receiving tubes, which are installed in two opposite directions on
a highly integrated circuit board, forming an invisible of infrared
light. The infrared radiation array densely distributed in the Y
direction is used to detect the user's own mode. In the infrared
touch screen, a circuit board is installed in front of the display.
The external circuit board arranges red line transmitting tubes and
infrared receiving tubes on the four sides of the screen,
corresponding one to one to form a cross infrared matrix. When the
user touches the screen, the finger will block the direction of the
external system passing through the position. The change in the
light signal causes the electrical signal output by the
photoelectric detection circuit to change. By processing the
electrical signal, the position of the touch point on the screen
can be located. , any touch object that is opaque to infrared light
can block infrared rays to achieve touch positioning.
Infrared touch screen product advantages:
Anti-light design, supports single and multi-point touch
Via USB link, no driver required, plug and play
Can be touched using a pen, finger, gloved hand, etc.
Responsive, no disconnection, no ghosting, no drifting, supports
20-64 touch points
Lightproof, dustproof, waterproof, vandal-proof, scratch-resistant,
long service life
High light transmittance, up to 100%, ensuring perfect presentation
of display colors
Special-purpose appearance structure, suitable for installation of
various flat display devices
Installation is more convenient, writing is fast and smooth, giving
you the touch experience you want
Infrared touch screen application scope:
Financial self-service, telecommunications services
Public inquiry, advertising display
Industrial control, electronic education
Game entertainment, touch display
Touch all-in-one machine, medical service system
Digital electronic products and other fields
parameter
1. Main specifications:
Touch size Customizable size
Touch pressure zero pressure
Light transmittance >92% (if there is no glass, the light
transmittance is 100%)
Report resolution Free zone 32768*32768
Response speed (multipoint mode) 10-15ms
Response speed (single point mode) 7ms
Minimum identification point size 4mm*4mm
Touch object size recognition supported
Interface type: socket type USB cable 1.5 meters, socket type 5P
2.Electronic characteristics:
Scan frame rate is greater than or equal to 110 frames
Communication type USB 2.0 full speed
Power supply mode: single USB power supply
Working voltage DC 5.0V+5%
Average current less than or equal to 200mA
Power consumption less than or equal to 1.0W
LED life span 60,000 hours
Fault tolerance: 10% of the sensor is discontinuously damaged, but
still can be touched
