The invention provides a printing display-oriented printing height
control system and method. The printing display-oriented printing height
control system comprises a spray head lifting module, a substrate fixing module, a first sensor, a second sensor, a sensor controller and a motion driving controller; the spray head lifting module comprises a spray head, a spray head clamping device and a lifting mechanism; the substrate fixing module is arranged below the spray head lifting module and comprises an adsorption platform; the first sensor and the second sensor are used for detecting the real-
time distance between a
nozzle and a substrate and generating a first detection original
signal and a second detection original
signal; the sensor controller is used for acquiring the first detectionoriginal
signal and the second detection original signal and sending the first detection original signal and the second detection original signal to the motion driving controller through
signal processing and correction operation; and the motion driving controller is used for carrying out full-closed-
loop control and driving on the lifting mechanism. According to the printing display-oriented printing height
control system and method, the printing height control
system and the two sensors are arranged in a combined mode, measured values of the multiple detected objects are corrected, the height or position relation is established, and non-contact self-adaptive printing height positioning control can be better achieved.