The conventional liquid crystal advertisement machine has two kinds of touch screen technology, it is to point to which two?
LCD advertising machine two touch-screen technology refers to the infrared touch screen
, capacitive touch screen.
Crown teck we have collected information about the LCD advertising machine of two kinds of technology, the user can choose according to his be fond of suitable products.
LCD advertising machine infrared touch screen features.
Infrared touch screen is the use of X, Y direction with infrared matrix to detect and locate the user's touch.
Infrared touch screen in front of the said device device is a circuit board frame, circuit boards and around the screen configuration infrared transmitting tube and infrared receiving tube, one to one correspondence into bearing cross infrared matrix.
User when touching the screen, the fingers will pass by blocking the position relation of two infrared, is able to or or or conclude that the location of the touch point on the screen.
Touch screen, is a highly integrated electronic road integration products.
Infrared touch screen consists of a complete integrated control circuit, and a set of high accuracy and anti-interference infrared transmitting tube and a set of infrared receiving tube, cross device in highly integrated circuit board on the two opposite directions, make a invisible infrared grating.
Embedded in the control circuit of the intelligent control system continuously to diodes pulse infrared partial beam grating.
When touch objects such as fingers into the grating, blocking the light beam.
Intelligent control system will detect the loss of the light to change, and transfer the flags lights to the control system, to confirm the X axis and Y axis coordinate values.
LCD mechanical and electrical capacitance touch screen features.
Capacitive touch screen is a kind of transparent relative positioning system, first of all, it must be transparent, transparent technology to solve the achievement is the process of course material.
Second is that it can give his finger in the relative coordinates, and the mouse belongs to the relative positioning system.
Relative coordinate system is characteristic of the coordinates of each location and last positioning it doesn't matter, the coordinates of the touch screen on the physical is a set of independent coordinate positioning system, converting each time the location of the touch screen coordinates.
The above is the two kinds of touch screen LCD advertising machine technology is introduced, as for you choose, the key is decided according to the needs of users.
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