Method and device for printing reflecting layer of backlight panel

A device for printing a reflecting layer of a backlight panel, comprising:

• a first processing module, configured to perform first correction processing on at least two piezoelectric injection valves;
• the first processing module includes:
• a first control unit, configured to acquire a distance between each of the at least two piezoelectric injection valves and a substrate based on a contact sensor, and control the distance between each of the at least two piezoelectric injection valves and the substrate as a first preset distance, wherein the substrate is used for supporting the backlight panel;
• a first acquisition unit, configured to acquire shapes of nozzles of the at least two piezoelectric injection valves based on a first camera, and determine a distance between any two adjacent piezoelectric injection valves among the at least two piezoelectric injection valves according to the shapes of the nozzles;
• a second control unit, configured to regulate the distance between any two adjacent piezoelectric injection valves according to a second preset distance;
• a print unit, configured to control any one of the at least two piezoelectric injection valves to print a calibration point in a preset area;
• an identification unit, configured to identify the calibration point based on a second camera, and determine an initial position of the piezoelectric injection valve corresponding to the calibration point;
• and
• a third control unit, configured to determine an initial position of each of the at least two piezoelectric injection valves according to the regulated distance between any two adjacent piezoelectric injection valves and the initial position of the piezoelectric injection valve corresponding to the calibration point;
• an identification module, configured to identify mark points on the backlight panel based on the second camera after first correction processing is performed on the at least two piezoelectric injection valves, and before the specification parameters of the backlight panel are acquired, and the moving paths of the at least two piezoelectric injection valves are generated according to the specification parameters of the backlight panel, wherein at least two mark points on the backlight panel are provided;
• a judgment module, configured to judge whether a line formed by connecting any two adjacent mark points on the backlight panel is parallel to a calibration line set on a substrate, wherein the substrate is used for supporting the backlight panel;
• a second processing module, configured to perform second correction processing on the backlight panel till the line formed by connecting any two adjacent mark points on the backlight panel is parallel to the calibration line set on the substrate if it is determined that the line formed by connecting any two adjacent mark points on the backlight panel is not parallel to the calibration line set on the substrate;
• and
• a calculation module, configured to determine a print position of the piezoelectric injection valve corresponding to the calibration point according to the mark points of the corrected backlight panel, and calculate a print position of each of the at least two piezoelectric injection valves according to the print position of the piezoelectric injection valve corresponding to the calibration point and the initial position of the piezoelectric injection valve corresponding to the calibration point;
• a generation module, configured to acquire specification parameters of the backlight panel, and generate moving paths of the at least two piezoelectric injection valves according to the specification parameters of the backlight panel;
• the specification parameters of the backlight panel include dimensions of a surface of the backlight panel, dimensions of each light-emitting diode, and a position of each light-emitting diode on the backlight panel;
• and
• a print module, configured to control the at least two corrected piezoelectric injection valves to print according to the moving paths.