Infrared touch screen technology principle
The infrared touch screen is a highly integrated electronic circuit
product. The infrared screen contains a complete integrated control
circuit, a high-precision, anti-interference infrared transmitting
tube and a set of infrared receiving tubes, which are installed on
a highly integrated circuit board. The two opposite directions form
an invisible infrared grating. The dense infrared array in the X
and Y directions is used to detect and locate the user's touch. The
infrared touch screen installs a circuit board frame in front of
the display. The circuit board Infrared transmitting tubes and
infrared receiving tubes are arranged on the four sides of the
screen, corresponding to a yellow and vertical infrared matrix.
When the user fills in the screen, his fingers will block the
infrared rays passing through the transverse direction of the
changed position, and the light signal will change. Causes the
electrical signal output by the photoelectric detection circuit to
change. By processing the electrical signal, the point can be
positioned at the desired position. Any object that is opaque to
infrared light can interrupt the infrared ray to achieve touch
positioning.
【Infrared touch screen technology principle】
Advantages of infrared touch screen products
Anti-light design, supports single touch and multi-touch
Via USB link, no driver required, plug and play
Can be touched using a pen, finger, gloved hand, etc.
Sensitive response, no disconnection, no duplication, no drift,
supports 20-64 touch points
Lightproof, dustproof, waterproof, explosion-proof,
scratch-resistant, long service life
High light transmittance, up to 100%, ensuring perfect presentation
of display colors
Through the profile appearance structure, it is suitable for the
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 displ
